Added in API level 1

Summary: Nested Classes | Constants | Ctors | Methods | Inherited Methods

Context

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Kotlin |Java

public abstract class Context
extends Object

java.lang.Object
↳	android.content.Context

Known direct subclasses ContextWrapper, MockContext ContextWrapper Proxying implementation of Context that simply delegates all of its calls to another Context.  MockContext A mock Context class.

Known indirect subclasses AbstractInputMethodService, AccessibilityService, AccountAuthenticatorActivity, Activity, ActivityGroup, AliasActivity, AppFunctionService, Application, AutofillService, BackupAgent, BackupAgentHelper, CallRedirectionService, CallScreeningService, CameraPrewarmService, CarrierMessagingClientService, and 51 others. AbstractInputMethodService AbstractInputMethodService provides a abstract base class for input methods.  AccessibilityService Accessibility services should only be used to assist users with disabilities in using Android devices and apps.  AccountAuthenticatorActivity This class was deprecated in API level 30. Applications should extend Activity themselves. This class is not compatible with AppCompat, and the functionality it provides is not complex.  Activity An activity is a single, focused thing that the user can do.  ActivityGroup This class was deprecated in API level 13. Use the new Fragment and FragmentManager APIs instead; these are also available on older platforms through the Android compatibility package.  AliasActivity This class was deprecated in API level 30. Use <activity-alias> or subclass Activity directly.  AppFunctionService Abstract base class to provide app functions to the system.  Application Base class for maintaining global application state.  AutofillService An AutofillService is a service used to automatically fill the contents of the screen on behalf of a given user - for more information about autofill, read Autofill Framework.  BackupAgent Provides the central interface between an application and Android's data backup infrastructure.  BackupAgentHelper A convenient BackupAgent wrapper class that automatically manages heterogeneous data sets within the backup data, each identified by a unique key prefix.  CallRedirectionService This service can be implemented to interact between Telecom and its implementor for making outgoing call with optional redirection/cancellation purposes.  CallScreeningService This service can be implemented by the default dialer (see TelecomManager.getDefaultDialerPackage()) or a third party app to allow or disallow incoming calls before they are shown to a user.  CameraPrewarmService Extend this class to implement a camera prewarm service.  CarrierMessagingClientService If the default SMS app has a service that extends this class, the system always tries to bind it so that the process is always running, which allows the app to have a persistent connection to the server.  CarrierMessagingService A service that receives calls from the system when new SMS and MMS are sent or received.  CarrierService A service that exposes carrier-specific functionality to the system.  ChooserTargetService This class was deprecated in API level 30. For publishing direct share targets, please follow the instructions in https://developer.android.com/training/sharing/receive.html#providing-direct-share-targets instead.  CompanionDeviceService A service that receives calls from the system with device events.  ConditionProviderService This class was deprecated in API level 29. Instead of using an automatically bound service, use NotificationManager.setAutomaticZenRuleState(String, Condition) to tell the system about the state of your rule. In order to maintain a link from Settings to your rule configuration screens, provide a configuration activity that handles NotificationManager.ACTION_AUTOMATIC_ZEN_RULE on your AutomaticZenRule via AutomaticZenRule.setConfigurationActivity(ComponentName).  ConnectionService An abstract service that should be implemented by any apps which either: Can make phone calls (VoIP or otherwise) and want those calls to be integrated into the built-in phone app.  ContextThemeWrapper A context wrapper that allows you to modify or replace the theme of the wrapped context.  ControlsProviderService Service implementation allowing applications to contribute controls to the System UI.  CredentialProviderService Service to be extended by credential providers, in order to return user credentials to the framework.  DeviceAdminService Base class for a service that device owner/profile owners can optionally have.  DreamService Extend this class to implement a custom dream (available to the user as a "Daydream").  ExpandableListActivity This class was deprecated in API level 30. Use RecyclerView or use ExpandableListView directly  HostApduService HostApduService is a convenience Service class that can be extended to emulate an NFC card inside an Android service component.  HostNfcFService HostNfcFService is a convenience Service class that can be extended to emulate an NFC-F card inside an Android service component.  InCallService This service is implemented by an app that wishes to provide functionality for managing phone calls.  InputMethodService InputMethodService provides a standard implementation of an InputMethod, which final implementations can derive from and customize.  IntentService This class was deprecated in API level 30. IntentService is subject to all the background execution limits imposed with Android 8.0 (API level 26). Consider using WorkManager instead.  IsolatedContext This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.  IsolatedService Base class for services that are started by ODP on a call to OnDevicePersonalizationManager#execute(ComponentName, PersistableBundle, java.util.concurrent.Executor, OutcomeReceiver) and run in an isolated process.  JobService Entry point for the callback from the JobScheduler.  LauncherActivity This class was deprecated in API level 30. Applications can implement this UI themselves using RecyclerView and PackageManager.queryIntentActivities(Intent, int)  ListActivity This class was deprecated in API level 30. Use ListFragment or RecyclerView to implement your Activity instead.  MediaBrowserService Base class for media browser services.  MediaRoute2ProviderService Base class for media route provider services.  MediaSession2Service This API is not generally intended for third party application developers.  MidiDeviceService A service that implements a virtual MIDI device.  MidiUmpDeviceService A service that implements a virtual MIDI device for Universal MIDI Packets (UMP).  MockApplication This class was deprecated in API level 24. Use a mocking framework like Mockito. New tests should be written using the Android Testing Support Library.  MutableContextWrapper Special version of ContextWrapper that allows the base context to be modified after it is initially set.  NativeActivity Convenience for implementing an activity that will be implemented purely in native code.  NotificationListenerService A service that receives calls from the system when new notifications are posted or removed, or their ranking changed.  OffHostApduService OffHostApduService is a convenience Service class that can be extended to describe one or more NFC applications that are residing off-host, for example on an embedded secure element or a UICC.  PreferenceActivity This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.  PrintService This is the base class for implementing print services.  QuickAccessWalletService A QuickAccessWalletService provides a list of WalletCards shown in the Quick Access Wallet.  RecognitionService This class provides a base class for recognition service implementations.  RemoteViewsService The service to be connected to for a remote adapter to request RemoteViews.  RenamingDelegatingContext This class was deprecated in API level 24. New tests should be written using the Android Testing Support Library.  Service A Service is an application component representing either an application's desire to perform a longer-running operation while not interacting with the user or to supply functionality for other applications to use.  SettingInjectorService Dynamically specifies the summary (subtitle) and enabled status of a preference injected into the list of app settings displayed by the system settings app For use only by apps that are included in the system image, for preferences that affect multiple apps.  SpellCheckerService SpellCheckerService provides an abstract base class for a spell checker.  TabActivity This class was deprecated in API level 13. New applications should use Fragments instead of this class; to continue to run on older devices, you can use the v4 support library which provides a version of the Fragment API that is compatible down to Build.VERSION_CODES.DONUT.  TextToSpeechService Abstract base class for TTS engine implementations.  TileService A TileService provides the user a tile that can be added to Quick Settings.  TvInputService The TvInputService class represents a TV input or source such as HDMI or built-in tuner which provides pass-through video or broadcast TV programs.  TvInteractiveAppService A TV interactive application service is a service that provides runtime environment and runs TV interactive applications.  VisualVoicemailService This service is implemented by dialer apps that wishes to handle OMTP or similar visual voicemails.  VoiceInteractionService Top-level service of the current global voice interactor, which is providing support for hotwording, the back-end of a VoiceInteractor, etc.  VoiceInteractionSessionService An active voice interaction session, initiated by a VoiceInteractionService.  VpnService VpnService is a base class for applications to extend and build their own VPN solutions.  VrListenerService A service that is bound from the system while running in virtual reality (VR) mode.  WallpaperService A wallpaper service is responsible for showing a live wallpaper behind applications that would like to sit on top of it.

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Interface to global information about an application environment. This is an abstract class whose implementation is provided by the Android system. It allows access to application-specific resources and classes, as well as up-calls for application-level operations such as launching activities, broadcasting and receiving intents, etc.

Summary

Nested classes
class	Context.BindServiceFlags Specific flags used for bindService() call, which encapsulates a 64 bits long integer.

Constants
String	ACCESSIBILITY_SERVICE Use with getSystemService(java.lang.String) to retrieve a AccessibilityManager for giving the user feedback for UI events through the registered event listeners.
String	ACCOUNT_SERVICE Use with getSystemService(java.lang.String) to retrieve a AccountManager for receiving intents at a time of your choosing.
String	ACTIVITY_SERVICE Use with getSystemService(java.lang.String) to retrieve a ActivityManager for interacting with the global system state.
String	ALARM_SERVICE Use with getSystemService(java.lang.String) to retrieve a AlarmManager for receiving intents at a time of your choosing.
String	APPWIDGET_SERVICE Use with getSystemService(java.lang.String) to retrieve a AppWidgetManager for accessing AppWidgets.
String	APP_FUNCTION_SERVICE Use with getSystemService(java.lang.String) to retrieve an AppFunctionManager for executing app functions.
String	APP_OPS_SERVICE Use with getSystemService(java.lang.String) to retrieve a AppOpsManager for tracking application operations on the device.
String	APP_SEARCH_SERVICE Use with getSystemService(java.lang.String) to retrieve an AppSearchManager for indexing and querying app data managed by the system.
String	AUDIO_SERVICE Use with getSystemService(java.lang.String) to retrieve a AudioManager for handling management of volume, ringer modes and audio routing.
String	BATTERY_SERVICE Use with getSystemService(java.lang.String) to retrieve a BatteryManager for managing battery state.
int	BIND_ABOVE_CLIENT Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): indicates that the client application binding to this service considers the service to be more important than the app itself.
int	BIND_ADJUST_WITH_ACTIVITY Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an activity, allow the target service's process importance to be raised based on whether the activity is visible to the user, regardless whether another flag is used to reduce the amount that the client process's overall importance is used to impact it.
int	BIND_ALLOW_ACTIVITY_STARTS Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an app that is visible, the bound service is allowed to start an activity from background.
int	BIND_ALLOW_OOM_MANAGEMENT Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): allow the process hosting the bound service to go through its normal memory management.
int	BIND_AUTO_CREATE Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): automatically create the service as long as the binding exists.
int	BIND_DEBUG_UNBIND Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): include debugging help for mismatched calls to unbind.
int	BIND_EXTERNAL_SERVICE Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): The service being bound is an isolated, external service.
long	BIND_EXTERNAL_SERVICE_LONG Works in the same way as BIND_EXTERNAL_SERVICE, but it's defined as a long value that is compatible to BindServiceFlags.
int	BIND_IMPORTANT Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): this service is very important to the client, so should be brought to the foreground process level when the client is.
int	BIND_INCLUDE_CAPABILITIES Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an app that has specific capabilities due to its foreground state such as an activity or foreground service, then this flag will allow the bound app to get the same capabilities, as long as it has the required permissions as well.
int	BIND_NOT_FOREGROUND Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): don't allow this binding to raise the target service's process to the foreground scheduling priority.
int	BIND_NOT_PERCEPTIBLE Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an app that is visible or user-perceptible, lower the target service's importance to below the perceptible level.
int	BIND_PACKAGE_ISOLATED_PROCESS Flag for bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection): Bind the service into a shared isolated process, but only with other isolated services from the same package that declare the same process name.
int	BIND_SHARED_ISOLATED_PROCESS Flag for bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection): Bind the service into a shared isolated process.
int	BIND_WAIVE_PRIORITY Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): don't impact the scheduling or memory management priority of the target service's hosting process.
String	BIOMETRIC_SERVICE Use with getSystemService(java.lang.String) to retrieve a BiometricManager for handling biometric and PIN/pattern/password authentication.
String	BLOB_STORE_SERVICE Use with getSystemService(java.lang.String) to retrieve a BlobStoreManager for contributing and accessing data blobs from the blob store maintained by the system.
String	BLUETOOTH_SERVICE Use with getSystemService(java.lang.String) to retrieve a BluetoothManager for using Bluetooth.
String	BUGREPORT_SERVICE Service to capture a bugreport.
String	CAMERA_SERVICE Use with getSystemService(java.lang.String) to retrieve a CameraManager for interacting with camera devices.
String	CAPTIONING_SERVICE Use with getSystemService(java.lang.String) to retrieve a CaptioningManager for obtaining captioning properties and listening for changes in captioning preferences.
String	CARRIER_CONFIG_SERVICE Use with getSystemService(java.lang.String) to retrieve a CarrierConfigManager for reading carrier configuration values.
String	CLIPBOARD_SERVICE Use with getSystemService(java.lang.String) to retrieve a ClipboardManager for accessing and modifying the contents of the global clipboard.
String	COMPANION_DEVICE_SERVICE Use with getSystemService(java.lang.String) to retrieve a CompanionDeviceManager for managing companion devices
String	CONNECTIVITY_DIAGNOSTICS_SERVICE Use with getSystemService(java.lang.String) to retrieve a ConnectivityDiagnosticsManager for performing network connectivity diagnostics as well as receiving network connectivity information from the system.
String	CONNECTIVITY_SERVICE Use with getSystemService(java.lang.String) to retrieve a ConnectivityManager for handling management of network connections.
String	CONSUMER_IR_SERVICE Use with getSystemService(java.lang.String) to retrieve a ConsumerIrManager for transmitting infrared signals from the device.
String	CONTACT_KEYS_SERVICE Use with getSystemService(java.lang.String) to retrieve a E2eeContactKeysManager to managing contact keys.
int	CONTEXT_IGNORE_SECURITY Flag for use with createPackageContext(String, int): ignore any security restrictions on the Context being requested, allowing it to always be loaded.
int	CONTEXT_INCLUDE_CODE Flag for use with createPackageContext(String, int): include the application code with the context.
int	CONTEXT_RESTRICTED Flag for use with createPackageContext(String, int): a restricted context may disable specific features.
String	CREDENTIAL_SERVICE Use with getSystemService(java.lang.String) to retrieve a CredentialManager to authenticate a user to your app.
String	CROSS_PROFILE_APPS_SERVICE Use with getSystemService(java.lang.String) to retrieve a CrossProfileApps for cross profile operations.
int	DEVICE_ID_DEFAULT The default device ID, which is the ID of the primary (non-virtual) device.
int	DEVICE_ID_INVALID Invalid device ID.
String	DEVICE_LOCK_SERVICE Use with getSystemService(java.lang.String) to retrieve a DeviceLockManager.
String	DEVICE_POLICY_SERVICE Use with getSystemService(java.lang.String) to retrieve a DevicePolicyManager for working with global device policy management.
String	DISPLAY_HASH_SERVICE Use with getSystemService(java.lang.String) to access DisplayHashManager to handle display hashes.
String	DISPLAY_SERVICE Use with getSystemService(java.lang.String) to retrieve a DisplayManager for interacting with display devices.
String	DOMAIN_VERIFICATION_SERVICE Use with getSystemService(java.lang.String) to access DomainVerificationManager to retrieve approval and user state for declared web domains.
String	DOWNLOAD_SERVICE Use with getSystemService(java.lang.String) to retrieve a DownloadManager for requesting HTTP downloads.
String	DROPBOX_SERVICE Use with getSystemService(java.lang.String) to retrieve a DropBoxManager instance for recording diagnostic logs.
String	EUICC_SERVICE Use with getSystemService(java.lang.String) to retrieve a EuiccManager to manage the device eUICC (embedded SIM).
String	FILE_INTEGRITY_SERVICE Use with getSystemService(java.lang.String) to retrieve an FileIntegrityManager.
String	FINGERPRINT_SERVICE Use with getSystemService(java.lang.String) to retrieve a FingerprintManager for handling management of fingerprints.
String	GAME_SERVICE Use with getSystemService(java.lang.String) to retrieve a GameManager.
String	GRAMMATICAL_INFLECTION_SERVICE Use with getSystemService(java.lang.String) to retrieve a GrammaticalInflectionManager.
String	HARDWARE_PROPERTIES_SERVICE Use with getSystemService(java.lang.String) to retrieve a HardwarePropertiesManager for accessing the hardware properties service.
String	HEALTHCONNECT_SERVICE Use with getSystemService(java.lang.String) to retrieve a HealthConnectManager.
String	INPUT_METHOD_SERVICE Use with getSystemService(java.lang.String) to retrieve a InputMethodManager for accessing input methods.
String	INPUT_SERVICE Use with getSystemService(java.lang.String) to retrieve a InputManager for interacting with input devices.
String	IPSEC_SERVICE Use with getSystemService(java.lang.String) to retrieve a IpSecManager for encrypting Sockets or Networks with IPSec.
String	JOB_SCHEDULER_SERVICE Use with getSystemService(java.lang.String) to retrieve a JobScheduler instance for managing occasional background tasks.
String	KEYGUARD_SERVICE Use with getSystemService(java.lang.String) to retrieve a KeyguardManager for controlling keyguard.
String	LAUNCHER_APPS_SERVICE Use with getSystemService(java.lang.String) to retrieve a LauncherApps for querying and monitoring launchable apps across profiles of a user.
String	LAYOUT_INFLATER_SERVICE Use with getSystemService(java.lang.String) to retrieve a LayoutInflater for inflating layout resources in this context.
String	LOCALE_SERVICE Use with getSystemService(java.lang.String) to retrieve a LocaleManager.
String	LOCATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a LocationManager for controlling location updates.
String	MEDIA_COMMUNICATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a MediaCommunicationManager for managing MediaSession2.
String	MEDIA_METRICS_SERVICE Use with getSystemService(java.lang.String) to retrieve a MediaMetricsManager for interacting with media metrics on the device.
String	MEDIA_PROJECTION_SERVICE Use with getSystemService(java.lang.String) to retrieve a MediaProjectionManager instance for managing media projection sessions.
String	MEDIA_ROUTER_SERVICE Use with getSystemService(Class) to retrieve a MediaRouter for controlling and managing routing of media.
String	MEDIA_SESSION_SERVICE Use with getSystemService(java.lang.String) to retrieve a MediaSessionManager for managing media Sessions.
String	MIDI_SERVICE Use with getSystemService(java.lang.String) to retrieve a MidiManager for accessing the MIDI service.
int	MODE_APPEND File creation mode: for use with openFileOutput(String, int), if the file already exists then write data to the end of the existing file instead of erasing it.
int	MODE_ENABLE_WRITE_AHEAD_LOGGING Database open flag: when set, the database is opened with write-ahead logging enabled by default.
int	MODE_MULTI_PROCESS This constant was deprecated in API level 23. MODE_MULTI_PROCESS does not work reliably in some versions of Android, and furthermore does not provide any mechanism for reconciling concurrent modifications across processes. Applications should not attempt to use it. Instead, they should use an explicit cross-process data management approach such as ContentProvider.
int	MODE_NO_LOCALIZED_COLLATORS Database open flag: when set, the database is opened without support for localized collators.
int	MODE_PRIVATE File creation mode: the default mode, where the created file can only be accessed by the calling application (or all applications sharing the same user ID).
int	MODE_WORLD_READABLE This constant was deprecated in API level 17. Creating world-readable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as ContentProvider, BroadcastReceiver, and Service. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.
int	MODE_WORLD_WRITEABLE This constant was deprecated in API level 17. Creating world-writable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as ContentProvider, BroadcastReceiver, and Service. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.
String	NETWORK_STATS_SERVICE Use with getSystemService(java.lang.String) to retrieve a NetworkStatsManager for querying network usage stats.
String	NFC_SERVICE Use with getSystemService(java.lang.String) to retrieve a NfcManager for using NFC.
String	NOTIFICATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a NotificationManager for informing the user of background events.
String	NSD_SERVICE Use with getSystemService(java.lang.String) to retrieve a NsdManager for handling management of network service discovery
String	OVERLAY_SERVICE Use with getSystemService(java.lang.String) to retrieve a OverlayManager for managing overlay packages.
String	PEOPLE_SERVICE Use with getSystemService(java.lang.String) to access a PeopleManager to interact with your published conversations.
String	PERFORMANCE_HINT_SERVICE Use with getSystemService(java.lang.String) to retrieve a PerformanceHintManager for accessing the performance hinting service.
String	PERSISTENT_DATA_BLOCK_SERVICE Use with getSystemService(java.lang.String) to retrieve a PersistentDataBlockManager instance for interacting with a storage device that lives across factory resets.
String	POWER_SERVICE Use with getSystemService(java.lang.String) to retrieve a PowerManager for controlling power management, including "wake locks," which let you keep the device on while you're running long tasks.
String	PRINT_SERVICE PrintManager for printing and managing printers and print tasks.
String	PROFILING_SERVICE Use with getSystemService(java.lang.String) to retrieve an ProfilingManager.
int	RECEIVER_EXPORTED Flag for registerReceiver(BroadcastReceiver, IntentFilter): The receiver can receive broadcasts from other Apps.
int	RECEIVER_NOT_EXPORTED Flag for registerReceiver(BroadcastReceiver, IntentFilter): The receiver cannot receive broadcasts from other Apps.
int	RECEIVER_VISIBLE_TO_INSTANT_APPS Flag for registerReceiver(BroadcastReceiver, IntentFilter): The receiver can receive broadcasts from Instant Apps.
String	RESTRICTIONS_SERVICE Use with getSystemService(java.lang.String) to retrieve a RestrictionsManager for retrieving application restrictions and requesting permissions for restricted operations.
String	ROLE_SERVICE Use with getSystemService(java.lang.String) to retrieve a RoleManager for managing roles.
String	SEARCH_SERVICE Use with getSystemService(java.lang.String) to retrieve a SearchManager for handling searches.
String	SECURITY_STATE_SERVICE Use with getSystemService(java.lang.String) to retrieve a SecurityStateManager for accessing the security state manager service.
String	SENSOR_SERVICE Use with getSystemService(java.lang.String) to retrieve a SensorManager for accessing sensors.
String	SHORTCUT_SERVICE Use with getSystemService(java.lang.String) to retrieve a ShortcutManager for accessing the launcher shortcut service.
String	STATUS_BAR_SERVICE Use with getSystemService(java.lang.String) to retrieve a StatusBarManager for interacting with the status bar and quick settings.
String	STORAGE_SERVICE Use with getSystemService(java.lang.String) to retrieve a StorageManager for accessing system storage functions.
String	STORAGE_STATS_SERVICE Use with getSystemService(java.lang.String) to retrieve a StorageStatsManager for accessing system storage statistics.
String	SYSTEM_HEALTH_SERVICE Use with getSystemService(java.lang.String) to retrieve a SystemHealthManager for accessing system health (battery, power, memory, etc) metrics.
String	TELECOM_SERVICE Use with getSystemService(java.lang.String) to retrieve a TelecomManager to manage telecom-related features of the device.
String	TELEPHONY_IMS_SERVICE Use with getSystemService(java.lang.String) to retrieve an ImsManager.
String	TELEPHONY_SERVICE Use with getSystemService(java.lang.String) to retrieve a TelephonyManager for handling management the telephony features of the device.
String	TELEPHONY_SUBSCRIPTION_SERVICE Use with getSystemService(java.lang.String) to retrieve a SubscriptionManager for handling management the telephony subscriptions of the device.
String	TEXT_CLASSIFICATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a TextClassificationManager for text classification services.
String	TEXT_SERVICES_MANAGER_SERVICE Use with getSystemService(java.lang.String) to retrieve a TextServicesManager for accessing text services.
String	TV_INPUT_SERVICE Use with getSystemService(java.lang.String) to retrieve a TvInputManager for interacting with TV inputs on the device.
String	TV_INTERACTIVE_APP_SERVICE Use with getSystemService(java.lang.String) to retrieve a TvInteractiveAppManager for interacting with TV interactive applications on the device.
String	UI_MODE_SERVICE Use with getSystemService(java.lang.String) to retrieve a UiModeManager for controlling UI modes.
String	USAGE_STATS_SERVICE Use with getSystemService(java.lang.String) to retrieve a UsageStatsManager for querying device usage stats.
String	USB_SERVICE Use with getSystemService(java.lang.String) to retrieve a UsbManager for access to USB devices (as a USB host) and for controlling this device's behavior as a USB device.
String	USER_SERVICE Use with getSystemService(java.lang.String) to retrieve a UserManager for managing users on devices that support multiple users.
String	VIBRATOR_MANAGER_SERVICE Use with getSystemService(java.lang.String) to retrieve a VibratorManager for accessing the device vibrators, interacting with individual ones and playing synchronized effects on multiple vibrators.
String	VIBRATOR_SERVICE This constant was deprecated in API level 31. Use VibratorManager to retrieve the default system vibrator.
String	VIRTUAL_DEVICE_SERVICE Use with getSystemService(java.lang.String) to retrieve a VirtualDeviceManager for managing virtual devices.
String	VPN_MANAGEMENT_SERVICE Use with getSystemService(java.lang.String) to retrieve a VpnManager to manage profiles for the platform built-in VPN.
String	WALLPAPER_SERVICE Use with getSystemService(java.lang.String) to retrieve a com.android.server.WallpaperService for accessing wallpapers.
String	WIFI_AWARE_SERVICE Use with getSystemService(java.lang.String) to retrieve a WifiAwareManager for handling management of Wi-Fi Aware.
String	WIFI_P2P_SERVICE Use with getSystemService(java.lang.String) to retrieve a WifiP2pManager for handling management of Wi-Fi peer-to-peer connections.
String	WIFI_RTT_RANGING_SERVICE Use with getSystemService(java.lang.String) to retrieve a WifiRttManager for ranging devices with wifi.
String	WIFI_SERVICE Use with getSystemService(java.lang.String) to retrieve a WifiManager for handling management of Wi-Fi access.
String	WINDOW_SERVICE Use with getSystemService(java.lang.String) to retrieve a WindowManager for accessing the system's window manager.

Public constructors
Context()

Public methods
boolean	bindIsolatedService(Intent service, int flags, String instanceName, Executor executor, ServiceConnection conn) Variation of bindService(Intent, BindServiceFlags, Executor, ServiceConnection) that, in the specific case of isolated services, allows the caller to generate multiple instances of a service from a single component declaration.
boolean	bindIsolatedService(Intent service, Context.BindServiceFlags flags, String instanceName, Executor executor, ServiceConnection conn) See bindIsolatedService(android.content.Intent, int, java.lang.String, java.util.concurrent.Executor, android.content.ServiceConnection) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.
boolean	bindService(Intent service, int flags, Executor executor, ServiceConnection conn) Same as bindService(Intent, ServiceConnection, int) with executor to control ServiceConnection callbacks.
boolean	bindService(Intent service, ServiceConnection conn, Context.BindServiceFlags flags) See bindService(android.content.Intent, android.content.ServiceConnection, int) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.
abstract boolean	bindService(Intent service, ServiceConnection conn, int flags) Connects to an application service, creating it if needed.
boolean	bindService(Intent service, Context.BindServiceFlags flags, Executor executor, ServiceConnection conn) See bindService(android.content.Intent, int, java.util.concurrent.Executor, android.content.ServiceConnection) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.
boolean	bindServiceAsUser(Intent service, ServiceConnection conn, int flags, UserHandle user) Binds to a service in the given user in the same manner as bindService(Intent, BindServiceFlags, Executor, ServiceConnection).
boolean	bindServiceAsUser(Intent service, ServiceConnection conn, Context.BindServiceFlags flags, UserHandle user) See bindServiceAsUser(android.content.Intent, android.content.ServiceConnection, int, android.os.UserHandle) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.
abstract int	checkCallingOrSelfPermission(String permission) Determine whether the calling process of an IPC or you have been granted a particular permission.
abstract int	checkCallingOrSelfUriPermission(Uri uri, int modeFlags) Determine whether the calling process of an IPC or you has been granted permission to access a specific URI.
int[]	checkCallingOrSelfUriPermissions(List<Uri> uris, int modeFlags) Determine whether the calling process of an IPC or you has been granted permission to access a list of URIs.
abstract int	checkCallingPermission(String permission) Determine whether the calling process of an IPC you are handling has been granted a particular permission.
abstract int	checkCallingUriPermission(Uri uri, int modeFlags) Determine whether the calling process and uid has been granted permission to access a specific URI.
int[]	checkCallingUriPermissions(List<Uri> uris, int modeFlags) Determine whether the calling process and uid has been granted permission to access a list of URIs.
int	checkContentUriPermissionFull(Uri uri, int pid, int uid, int modeFlags) Determine whether a particular process and uid has been granted permission to access a specific content URI.
abstract int	checkPermission(String permission, int pid, int uid) Determine whether the given permission is allowed for a particular process and user ID running in the system.
abstract int	checkSelfPermission(String permission) Determine whether you have been granted a particular permission.
abstract int	checkUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags) Check both a Uri and normal permission.
abstract int	checkUriPermission(Uri uri, int pid, int uid, int modeFlags) Determine whether a particular process and uid has been granted permission to access a specific URI.
int[]	checkUriPermissions(List<Uri> uris, int pid, int uid, int modeFlags) Determine whether a particular process and uid has been granted permission to access a list of URIs.
abstract void	clearWallpaper() This method was deprecated in API level 15. Use WallpaperManager.clear() instead. This method requires the caller to hold the permission Manifest.permission.SET_WALLPAPER.
Context	createAttributionContext(String attributionTag) Return a new Context object for the current Context but attribute to a different tag.
abstract Context	createConfigurationContext(Configuration overrideConfiguration) Return a new Context object for the current Context but whose resources are adjusted to match the given Configuration.
Context	createContext(ContextParams contextParams) Creates a context with specific properties and behaviors.
abstract Context	createContextForSplit(String splitName) Return a new Context object for the given split name.
Context	createDeviceContext(int deviceId) Returns a new Context object from the current context but with device association given by the deviceId.
abstract Context	createDeviceProtectedStorageContext() Return a new Context object for the current Context but whose storage APIs are backed by device-protected storage.
abstract Context	createDisplayContext(Display display) Returns a new Context object from the current context but with resources adjusted to match the metrics of display.
abstract Context	createPackageContext(String packageName, int flags) Return a new Context object for the given application name.
Context	createWindowContext(int type, Bundle options) Creates a Context for a non-activity window.
Context	createWindowContext(Display display, int type, Bundle options) Creates a Context for a non-activity window on the given Display.
abstract String[]	databaseList() Returns an array of strings naming the private databases associated with this Context's application package.
abstract boolean	deleteDatabase(String name) Delete an existing private SQLiteDatabase associated with this Context's application package.
abstract boolean	deleteFile(String name) Delete the given private file associated with this Context's application package.
abstract boolean	deleteSharedPreferences(String name) Delete an existing shared preferences file.
abstract void	enforceCallingOrSelfPermission(String permission, String message) If neither you nor the calling process of an IPC you are handling has been granted a particular permission, throw a SecurityException.
abstract void	enforceCallingOrSelfUriPermission(Uri uri, int modeFlags, String message) If the calling process of an IPC or you has not been granted permission to access a specific URI, throw SecurityException.
abstract void	enforceCallingPermission(String permission, String message) If the calling process of an IPC you are handling has not been granted a particular permission, throw a SecurityException.
abstract void	enforceCallingUriPermission(Uri uri, int modeFlags, String message) If the calling process and uid has not been granted permission to access a specific URI, throw SecurityException.
abstract void	enforcePermission(String permission, int pid, int uid, String message) If the given permission is not allowed for a particular process and user ID running in the system, throw a SecurityException.
abstract void	enforceUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags, String message) Enforce both a Uri and normal permission.
abstract void	enforceUriPermission(Uri uri, int pid, int uid, int modeFlags, String message) If a particular process and uid has not been granted permission to access a specific URI, throw SecurityException.
abstract String[]	fileList() Returns an array of strings naming the private files associated with this Context's application package.
abstract Context	getApplicationContext() Return the context of the single, global Application object of the current process.
abstract ApplicationInfo	getApplicationInfo() Return the full application info for this context's package.
abstract AssetManager	getAssets() Returns an AssetManager instance for the application's package.
AttributionSource	getAttributionSource()
String	getAttributionTag() Attribution can be used in complex apps to logically separate parts of the app.
abstract File	getCacheDir() Returns the absolute path to the application specific cache directory on the filesystem.
abstract ClassLoader	getClassLoader() Return a class loader you can use to retrieve classes in this package.
abstract File	getCodeCacheDir() Returns the absolute path to the application specific cache directory on the filesystem designed for storing cached code.
final int	getColor(int id) Returns a color associated with a particular resource ID and styled for the current theme.
final ColorStateList	getColorStateList(int id) Returns a color state list associated with a particular resource ID and styled for the current theme.
abstract ContentResolver	getContentResolver() Return a ContentResolver instance for your application's package.
abstract File	getDataDir() Returns the absolute path to the directory on the filesystem where all private files belonging to this app are stored.
abstract File	getDatabasePath(String name) Returns the absolute path on the filesystem where a database created with openOrCreateDatabase(String, int, CursorFactory) is stored.
int	getDeviceId() Gets the device ID this context is associated with.
abstract File	getDir(String name, int mode) Retrieve, creating if needed, a new directory in which the application can place its own custom data files.
Display	getDisplay() Get the display this context is associated with.
final Drawable	getDrawable(int id) Returns a drawable object associated with a particular resource ID and styled for the current theme.
abstract File	getExternalCacheDir() Returns absolute path to application-specific directory on the primary shared/external storage device where the application can place cache files it owns.
abstract File[]	getExternalCacheDirs() Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place cache files it owns.
abstract File	getExternalFilesDir(String type) Returns the absolute path to the directory on the primary shared/external storage device where the application can place persistent files it owns.
abstract File[]	getExternalFilesDirs(String type) Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place persistent files it owns.
abstract File[]	getExternalMediaDirs() This method was deprecated in API level 30. These directories still exist and are scanned, but developers are encouraged to migrate to inserting content into a MediaStore collection directly, as any app can contribute new media to MediaStore with no permissions required, starting in Build.VERSION_CODES.Q.
abstract File	getFileStreamPath(String name) Returns the absolute path on the filesystem where a file created with openFileOutput(String, int) is stored.
abstract File	getFilesDir() Returns the absolute path to the directory on the filesystem where files created with openFileOutput(String, int) are stored.
Executor	getMainExecutor() Return an Executor that will run enqueued tasks on the main thread associated with this context.
abstract Looper	getMainLooper() Return the Looper for the main thread of the current process.
abstract File	getNoBackupFilesDir() Returns the absolute path to the directory on the filesystem similar to getFilesDir().
abstract File	getObbDir() Return the primary shared/external storage directory where this application's OBB files (if there are any) can be found.
abstract File[]	getObbDirs() Returns absolute paths to application-specific directories on all shared/external storage devices where the application's OBB files (if there are any) can be found.
String	getOpPackageName() Return the package name that should be used for AppOpsManager calls from this context, so that app ops manager's uid verification will work with the name.
abstract String	getPackageCodePath() Return the full path to this context's primary Android package.
abstract PackageManager	getPackageManager() Return PackageManager instance to find global package information.
abstract String	getPackageName() Return the name of this application's package.
abstract String	getPackageResourcePath() Return the full path to this context's primary Android package.
ContextParams	getParams() Return the set of parameters which this Context was created with, if it was created via createContext(android.content.ContextParams).
abstract Resources	getResources() Returns a Resources instance for the application's package.
abstract SharedPreferences	getSharedPreferences(String name, int mode) Retrieve and hold the contents of the preferences file 'name', returning a SharedPreferences through which you can retrieve and modify its values.
final String	getString(int resId) Returns a localized string from the application's package's default string table.
final String	getString(int resId, Object... formatArgs) Returns a localized formatted string from the application's package's default string table, substituting the format arguments as defined in Formatter and String.format(String, Object).
final <T> T	getSystemService(Class<T> serviceClass) Return the handle to a system-level service by class.
abstract Object	getSystemService(String name) Return the handle to a system-level service by name.
abstract String	getSystemServiceName(Class<?> serviceClass) Gets the name of the system-level service that is represented by the specified class.
final CharSequence	getText(int resId) Return a localized, styled CharSequence from the application's package's default string table.
abstract Resources.Theme	getTheme() Return the Theme object associated with this Context.
abstract Drawable	getWallpaper() This method was deprecated in API level 15. Use WallpaperManager.get() instead.
abstract int	getWallpaperDesiredMinimumHeight() This method was deprecated in API level 15. Use WallpaperManager.getDesiredMinimumHeight() instead.
abstract int	getWallpaperDesiredMinimumWidth() This method was deprecated in API level 15. Use WallpaperManager.getDesiredMinimumWidth() instead.
abstract void	grantUriPermission(String toPackage, Uri uri, int modeFlags) Grant permission to access a specific Uri to another package, regardless of whether that package has general permission to access the Uri's content provider.
abstract boolean	isDeviceProtectedStorage() Indicates if the storage APIs of this Context are backed by device-protected storage.
boolean	isRestricted() Indicates whether this Context is restricted.
boolean	isUiContext() Returns true if the context is a UI context which can access UI components such as WindowManager, LayoutInflater or WallpaperManager.
abstract boolean	moveDatabaseFrom(Context sourceContext, String name) Move an existing database file from the given source storage context to this context.
abstract boolean	moveSharedPreferencesFrom(Context sourceContext, String name) Move an existing shared preferences file from the given source storage context to this context.
final TypedArray	obtainStyledAttributes(AttributeSet set, int[] attrs) Retrieve styled attribute information in this Context's theme.
final TypedArray	obtainStyledAttributes(AttributeSet set, int[] attrs, int defStyleAttr, int defStyleRes) Retrieve styled attribute information in this Context's theme.
final TypedArray	obtainStyledAttributes(int resid, int[] attrs) Retrieve styled attribute information in this Context's theme.
final TypedArray	obtainStyledAttributes(int[] attrs) Retrieve styled attribute information in this Context's theme.
abstract FileInputStream	openFileInput(String name) Open a private file associated with this Context's application package for reading.
abstract FileOutputStream	openFileOutput(String name, int mode) Open a private file associated with this Context's application package for writing.
abstract SQLiteDatabase	openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory, DatabaseErrorHandler errorHandler) Open a new private SQLiteDatabase associated with this Context's application package.
abstract SQLiteDatabase	openOrCreateDatabase(String name, int mode, SQLiteDatabase.CursorFactory factory) Open a new private SQLiteDatabase associated with this Context's application package.
abstract Drawable	peekWallpaper() This method was deprecated in API level 15. Use WallpaperManager.peek() instead.
void	registerComponentCallbacks(ComponentCallbacks callback) Add a new ComponentCallbacks to the base application of the Context, which will be called at the same times as the ComponentCallbacks methods of activities and other components are called.
void	registerDeviceIdChangeListener(Executor executor, IntConsumer listener) Adds a new device ID changed listener to the Context, which will be called when the device association is changed by the system.
abstract Intent	registerReceiver(BroadcastReceiver receiver, IntentFilter filter) Register a BroadcastReceiver to be run in the main activity thread.
abstract Intent	registerReceiver(BroadcastReceiver receiver, IntentFilter filter, int flags) Register to receive intent broadcasts, with the receiver optionally being exposed to Instant Apps.
abstract Intent	registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler, int flags) Register to receive intent broadcasts, to run in the context of scheduler.
abstract Intent	registerReceiver(BroadcastReceiver receiver, IntentFilter filter, String broadcastPermission, Handler scheduler) Register to receive intent broadcasts, to run in the context of scheduler.
abstract void	removeStickyBroadcast(Intent intent) This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
abstract void	removeStickyBroadcastAsUser(Intent intent, UserHandle user) This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
void	revokeSelfPermissionOnKill(String permName) Triggers the asynchronous revocation of a runtime permission.
void	revokeSelfPermissionsOnKill(Collection<String> permissions) Triggers the revocation of one or more permissions for the calling package.
abstract void	revokeUriPermission(Uri uri, int modeFlags) Remove all permissions to access a particular content provider Uri that were previously added with grantUriPermission(String, Uri, int) or any other mechanism.
abstract void	revokeUriPermission(String toPackage, Uri uri, int modeFlags) Remove permissions to access a particular content provider Uri that were previously added with grantUriPermission(String, Uri, int) for a specific target package.
void	sendBroadcast(Intent intent, String receiverPermission, Bundle options) Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
abstract void	sendBroadcast(Intent intent, String receiverPermission) Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
abstract void	sendBroadcast(Intent intent) Broadcast the given intent to all interested BroadcastReceivers.
abstract void	sendBroadcastAsUser(Intent intent, UserHandle user) Version of sendBroadcast(android.content.Intent) that allows you to specify the user the broadcast will be sent to.
abstract void	sendBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission) Version of sendBroadcast(android.content.Intent, java.lang.String) that allows you to specify the user the broadcast will be sent to.
void	sendBroadcastWithMultiplePermissions(Intent intent, String[] receiverPermissions) Broadcast the given intent to all interested BroadcastReceivers, allowing an array of required permissions to be enforced.
void	sendOrderedBroadcast(Intent intent, String receiverPermission, String receiverAppOp, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras) Version of sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle) that allows you to specify the App Op to enforce restrictions on which receivers the broadcast will be sent to.
abstract void	sendOrderedBroadcast(Intent intent, String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras) Version of sendBroadcast(android.content.Intent) that allows you to receive data back from the broadcast.
void	sendOrderedBroadcast(Intent intent, String receiverPermission, Bundle options) Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers.
void	sendOrderedBroadcast(Intent intent, String receiverPermission, Bundle options, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras) Version of sendBroadcast(android.content.Intent) that allows you to receive data back from the broadcast.
abstract void	sendOrderedBroadcast(Intent intent, String receiverPermission) Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers.
abstract void	sendOrderedBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras) Version of sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle) that allows you to specify the user the broadcast will be sent to.
abstract void	sendStickyBroadcast(Intent intent) This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
void	sendStickyBroadcast(Intent intent, Bundle options) This method was deprecated in API level 31. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
abstract void	sendStickyBroadcastAsUser(Intent intent, UserHandle user) This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
abstract void	sendStickyOrderedBroadcast(Intent intent, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras) This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
abstract void	sendStickyOrderedBroadcastAsUser(Intent intent, UserHandle user, BroadcastReceiver resultReceiver, Handler scheduler, int initialCode, String initialData, Bundle initialExtras) This method was deprecated in API level 21. Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.
abstract void	setTheme(int resid) Set the base theme for this context.
abstract void	setWallpaper(Bitmap bitmap) This method was deprecated in API level 15. Use WallpaperManager.set() instead. This method requires the caller to hold the permission Manifest.permission.SET_WALLPAPER.
abstract void	setWallpaper(InputStream data) This method was deprecated in API level 15. Use WallpaperManager.set() instead. This method requires the caller to hold the permission Manifest.permission.SET_WALLPAPER.
abstract void	startActivities(Intent[] intents, Bundle options) Launch multiple new activities.
abstract void	startActivities(Intent[] intents) Same as startActivities(android.content.Intent[], android.os.Bundle) with no options specified.
abstract void	startActivity(Intent intent) Same as startActivity(android.content.Intent, android.os.Bundle) with no options specified.
abstract void	startActivity(Intent intent, Bundle options) Launch a new activity.
abstract ComponentName	startForegroundService(Intent service) Similar to startService(android.content.Intent), but with an implicit promise that the Service will call startForeground(int, android.app.Notification) once it begins running.
abstract boolean	startInstrumentation(ComponentName className, String profileFile, Bundle arguments) Start executing an Instrumentation class.
abstract void	startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags) Same as startIntentSender(android.content.IntentSender, android.content.Intent, int, int, int, android.os.Bundle) with no options specified.
abstract void	startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options) Like startActivity(android.content.Intent, android.os.Bundle), but taking a IntentSender to start.
abstract ComponentName	startService(Intent service) Request that a given application service be started.
abstract boolean	stopService(Intent service) Request that a given application service be stopped.
abstract void	unbindService(ServiceConnection conn) Disconnect from an application service.
void	unregisterComponentCallbacks(ComponentCallbacks callback) Remove a ComponentCallbacks object that was previously registered with registerComponentCallbacks(android.content.ComponentCallbacks).
void	unregisterDeviceIdChangeListener(IntConsumer listener) Removes a device ID changed listener from the Context.
abstract void	unregisterReceiver(BroadcastReceiver receiver) Unregister a previously registered BroadcastReceiver.
void	updateServiceGroup(ServiceConnection conn, int group, int importance) For a service previously bound with bindService(Intent, BindServiceFlags, Executor, ServiceConnection) or a related method, change how the system manages that service's process in relation to other processes.

Inherited methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Constants

ACCESSIBILITY_SERVICE

Added in API level 4

public static final String ACCESSIBILITY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a AccessibilityManager for giving the user feedback for UI events through the registered event listeners.

See also:

• getSystemService(String)
• AccessibilityManager

Constant Value: "accessibility"

ACCOUNT_SERVICE

Added in API level 5

public static final String ACCOUNT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a AccountManager for receiving intents at a time of your choosing.

See also:

• getSystemService(String)
• AccountManager

Constant Value: "account"

ACTIVITY_SERVICE

Added in API level 1

public static final String ACTIVITY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a ActivityManager for interacting with the global system state.

See also:

• getSystemService(String)
• ActivityManager

Constant Value: "activity"

ALARM_SERVICE

Added in API level 1

public static final String ALARM_SERVICE

Use with getSystemService(java.lang.String) to retrieve a AlarmManager for receiving intents at a time of your choosing.

See also:

• getSystemService(String)
• AlarmManager

Constant Value: "alarm"

APPWIDGET_SERVICE

Added in API level 21

public static final String APPWIDGET_SERVICE

Use with getSystemService(java.lang.String) to retrieve a AppWidgetManager for accessing AppWidgets.

See also:

• getSystemService(String)

Constant Value: "appwidget"

APP_FUNCTION_SERVICE

Added in Android Baklava

public static final String APP_FUNCTION_SERVICE

Use with getSystemService(java.lang.String) to retrieve an AppFunctionManager for executing app functions.

See also:

• getSystemService(String)

Constant Value: "app_function"

APP_OPS_SERVICE

Added in API level 19

public static final String APP_OPS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a AppOpsManager for tracking application operations on the device.

See also:

• getSystemService(String)
• AppOpsManager

Constant Value: "appops"

APP_SEARCH_SERVICE

Added in API level 31

public static final String APP_SEARCH_SERVICE

Use with getSystemService(java.lang.String) to retrieve an AppSearchManager for indexing and querying app data managed by the system.

See also:

• getSystemService(String)

Constant Value: "app_search"

AUDIO_SERVICE

Added in API level 1

public static final String AUDIO_SERVICE

Use with getSystemService(java.lang.String) to retrieve a AudioManager for handling management of volume, ringer modes and audio routing.

See also:

• getSystemService(String)
• AudioManager

Constant Value: "audio"

BATTERY_SERVICE

Added in API level 21

public static final String BATTERY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a BatteryManager for managing battery state.

See also:

• getSystemService(String)

Constant Value: "batterymanager"

BIND_ABOVE_CLIENT

Added in API level 14

public static final int BIND_ABOVE_CLIENT

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): indicates that the client application binding to this service considers the service to be more important than the app itself. When set, the platform will try to have the out of memory killer kill the app before it kills the service it is bound to, though this is not guaranteed to be the case.

Constant Value: 8 (0x00000008)

BIND_ADJUST_WITH_ACTIVITY

Added in API level 14

public static final int BIND_ADJUST_WITH_ACTIVITY

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an activity, allow the target service's process importance to be raised based on whether the activity is visible to the user, regardless whether another flag is used to reduce the amount that the client process's overall importance is used to impact it.

Constant Value: 128 (0x00000080)

BIND_ALLOW_ACTIVITY_STARTS

Added in API level 34

public static final int BIND_ALLOW_ACTIVITY_STARTS

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an app that is visible, the bound service is allowed to start an activity from background. This was the default behavior before SDK version Build.VERSION_CODES.UPSIDE_DOWN_CAKE. Since then, the default behavior changed to disallow the bound service to start a background activity even if the app bound to it is in foreground, unless this flag is specified when binding.

Constant Value: 512 (0x00000200)

BIND_ALLOW_OOM_MANAGEMENT

Added in API level 14

public static final int BIND_ALLOW_OOM_MANAGEMENT

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): allow the process hosting the bound service to go through its normal memory management. It will be treated more like a running service, allowing the system to (temporarily) expunge the process if low on memory or for some other whim it may have, and being more aggressive about making it a candidate to be killed (and restarted) if running for a long time.

Constant Value: 16 (0x00000010)

BIND_AUTO_CREATE

Added in API level 1

public static final int BIND_AUTO_CREATE

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): automatically create the service as long as the binding exists. Note that while this will create the service, its Service.onStartCommand(Intent, int, int) method will still only be called due to an explicit call to startService(Intent). Even without that, though, this still provides you with access to the service object while the service is created.

Note that prior to Build.VERSION_CODES.ICE_CREAM_SANDWICH, not supplying this flag would also impact how important the system consider's the target service's process to be. When set, the only way for it to be raised was by binding from a service in which case it will only be important when that activity is in the foreground. Now to achieve this behavior you must explicitly supply the new flag BIND_ADJUST_WITH_ACTIVITY. For compatibility, old applications that don't specify BIND_AUTO_CREATE will automatically have the flags BIND_WAIVE_PRIORITY and BIND_ADJUST_WITH_ACTIVITY set for them in order to achieve the same result.

Constant Value: 1 (0x00000001)

BIND_DEBUG_UNBIND

Added in API level 1

public static final int BIND_DEBUG_UNBIND

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): include debugging help for mismatched calls to unbind. When this flag is set, the callstack of the following unbindService(ServiceConnection) call is retained, to be printed if a later incorrect unbind call is made. Note that doing this requires retaining information about the binding that was made for the lifetime of the app, resulting in a leak -- this should only be used for debugging.

Constant Value: 2 (0x00000002)

BIND_EXTERNAL_SERVICE

Added in API level 24

public static final int BIND_EXTERNAL_SERVICE

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): The service being bound is an isolated, external service. This binds the service into the calling application's package, rather than the package in which the service is declared.

When using this flag, the code for the service being bound will execute under the calling application's package name and user ID. Because the service must be an isolated process, it will not have direct access to the application's data, though. The purpose of this flag is to allow applications to provide services that are attributed to the app using the service, rather than the application providing the service.

This flag is NOT compatible with BindServiceFlags. If you need to use BindServiceFlags, you must use BIND_EXTERNAL_SERVICE_LONG instead.

Constant Value: -2147483648 (0x80000000)

BIND_EXTERNAL_SERVICE_LONG

Added in API level 34

public static final long BIND_EXTERNAL_SERVICE_LONG

Works in the same way as BIND_EXTERNAL_SERVICE, but it's defined as a long value that is compatible to BindServiceFlags.

Constant Value: 4611686018427387904 (0x4000000000000000)

BIND_IMPORTANT

Added in API level 14

public static final int BIND_IMPORTANT

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): this service is very important to the client, so should be brought to the foreground process level when the client is. Normally a process can only be raised to the visibility level by a client, even if that client is in the foreground.

Constant Value: 64 (0x00000040)

BIND_INCLUDE_CAPABILITIES

Added in API level 29

public static final int BIND_INCLUDE_CAPABILITIES

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an app that has specific capabilities due to its foreground state such as an activity or foreground service, then this flag will allow the bound app to get the same capabilities, as long as it has the required permissions as well. If binding from a top app and its target SDK version is at or above Build.VERSION_CODES.R, the app needs to explicitly use BIND_INCLUDE_CAPABILITIES flag to pass all capabilities to the service so the other app can have while-in-use access such as location, camera, microphone from background. If binding from a top app and its target SDK version is below Build.VERSION_CODES.R, BIND_INCLUDE_CAPABILITIES is implicit.

Constant Value: 4096 (0x00001000)

BIND_NOT_FOREGROUND

Added in API level 8

public static final int BIND_NOT_FOREGROUND

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): don't allow this binding to raise the target service's process to the foreground scheduling priority. It will still be raised to at least the same memory priority as the client (so that its process will not be killable in any situation where the client is not killable), but for CPU scheduling purposes it may be left in the background. This only has an impact in the situation where the binding client is a foreground process and the target service is in a background process.

Constant Value: 4 (0x00000004)

BIND_NOT_PERCEPTIBLE

Added in API level 29

public static final int BIND_NOT_PERCEPTIBLE

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): If binding from an app that is visible or user-perceptible, lower the target service's importance to below the perceptible level. This allows the system to (temporarily) expunge the bound process from memory to make room for more important user-perceptible processes.

Constant Value: 256 (0x00000100)

BIND_PACKAGE_ISOLATED_PROCESS

Added in API level 35

public static final int BIND_PACKAGE_ISOLATED_PROCESS

Flag for bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection): Bind the service into a shared isolated process, but only with other isolated services from the same package that declare the same process name.

Specifying this flag allows multiple isolated services defined in the same package to be running in a single shared isolated process. This shared isolated process must be specified since this flag will not work with the default application process.

This flag is different from BIND_SHARED_ISOLATED_PROCESS since it only allows binding services from the same package in the same shared isolated process. This also means the shared package isolated process is global, and not scoped to each potential calling app.

The shared isolated process instance is identified by the "android:process" attribute defined by the service. This flag cannot be used without this attribute set.

Constant Value: 16384 (0x00004000)

BIND_SHARED_ISOLATED_PROCESS

Added in API level 34

public static final int BIND_SHARED_ISOLATED_PROCESS

Flag for bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection): Bind the service into a shared isolated process. Specifying this flag allows multiple isolated services to be running in a single shared isolated process. The shared isolated process instance is identified by the instanceName parameter in bindIsolatedService(android.content.Intent, int, java.lang.String, java.util.concurrent.Executor, android.content.ServiceConnection). Subsequent calls to bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection) with the same instanceName will cause the isolated service to be co-located in the same shared isolated process. Note that the shared isolated process is scoped to the calling app; once created, only the calling app can bind additional isolated services into the shared process. However, the services themselves can come from different APKs and therefore different vendors. Only services that set the R.attr.allowSharedIsolatedProcess attribute to true are allowed to be bound into a shared isolated process.

Constant Value: 8192 (0x00002000)

BIND_WAIVE_PRIORITY

Added in API level 14

public static final int BIND_WAIVE_PRIORITY

Flag for bindService(Intent, BindServiceFlags, Executor, ServiceConnection): don't impact the scheduling or memory management priority of the target service's hosting process. Allows the service's process to be managed on the background LRU list just like a regular application process in the background.

Constant Value: 32 (0x00000020)

BIOMETRIC_SERVICE

Added in API level 29

public static final String BIOMETRIC_SERVICE

Use with getSystemService(java.lang.String) to retrieve a BiometricManager for handling biometric and PIN/pattern/password authentication.

See also:

• getSystemService(Class)
• BiometricManager

Constant Value: "biometric"

BLOB_STORE_SERVICE

Added in API level 30

public static final String BLOB_STORE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a BlobStoreManager for contributing and accessing data blobs from the blob store maintained by the system.

See also:

• getSystemService(String)
• BlobStoreManager

Constant Value: "blob_store"

BLUETOOTH_SERVICE

Added in API level 18

public static final String BLUETOOTH_SERVICE

Use with getSystemService(java.lang.String) to retrieve a BluetoothManager for using Bluetooth.

See also:

• getSystemService(String)

Constant Value: "bluetooth"

BUGREPORT_SERVICE

Added in API level 31

public static final String BUGREPORT_SERVICE

Service to capture a bugreport.

See also:

• getSystemService(String)
• BugreportManager

Constant Value: "bugreport"

CAMERA_SERVICE

Added in API level 21

public static final String CAMERA_SERVICE

Use with getSystemService(java.lang.String) to retrieve a CameraManager for interacting with camera devices.

See also:

• getSystemService(String)
• CameraManager

Constant Value: "camera"

CAPTIONING_SERVICE

Added in API level 19

public static final String CAPTIONING_SERVICE

Use with getSystemService(java.lang.String) to retrieve a CaptioningManager for obtaining captioning properties and listening for changes in captioning preferences.

See also:

• getSystemService(String)
• CaptioningManager

Constant Value: "captioning"

CARRIER_CONFIG_SERVICE

Added in API level 23

public static final String CARRIER_CONFIG_SERVICE

Use with getSystemService(java.lang.String) to retrieve a CarrierConfigManager for reading carrier configuration values.

See also:

• getSystemService(String)
• CarrierConfigManager

Constant Value: "carrier_config"

CLIPBOARD_SERVICE

Added in API level 1

public static final String CLIPBOARD_SERVICE

Use with getSystemService(java.lang.String) to retrieve a ClipboardManager for accessing and modifying the contents of the global clipboard.

See also:

• getSystemService(String)
• ClipboardManager

Constant Value: "clipboard"

COMPANION_DEVICE_SERVICE

Added in API level 26

public static final String COMPANION_DEVICE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a CompanionDeviceManager for managing companion devices

See also:

• getSystemService(String)
• CompanionDeviceManager

Constant Value: "companiondevice"

CONNECTIVITY_DIAGNOSTICS_SERVICE

Added in API level 30

public static final String CONNECTIVITY_DIAGNOSTICS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a ConnectivityDiagnosticsManager for performing network connectivity diagnostics as well as receiving network connectivity information from the system.

See also:

• getSystemService(String)
• ConnectivityDiagnosticsManager

Constant Value: "connectivity_diagnostics"

CONNECTIVITY_SERVICE

Added in API level 1

public static final String CONNECTIVITY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a ConnectivityManager for handling management of network connections.

See also:

• getSystemService(String)
• ConnectivityManager

Constant Value: "connectivity"

CONSUMER_IR_SERVICE

Added in API level 19

public static final String CONSUMER_IR_SERVICE

Use with getSystemService(java.lang.String) to retrieve a ConsumerIrManager for transmitting infrared signals from the device.

See also:

• getSystemService(String)
• ConsumerIrManager

Constant Value: "consumer_ir"

CONTACT_KEYS_SERVICE

Added in API level 35

public static final String CONTACT_KEYS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a E2eeContactKeysManager to managing contact keys.

See also:

• getSystemService(String)
• E2eeContactKeysManager

Constant Value: "contact_keys"

CONTEXT_IGNORE_SECURITY

Added in API level 1

public static final int CONTEXT_IGNORE_SECURITY

Flag for use with createPackageContext(String, int): ignore any security restrictions on the Context being requested, allowing it to always be loaded. For use with CONTEXT_INCLUDE_CODE to allow code to be loaded into a process even when it isn't safe to do so. Use with extreme care!

Constant Value: 2 (0x00000002)

CONTEXT_INCLUDE_CODE

Added in API level 1

public static final int CONTEXT_INCLUDE_CODE

Flag for use with createPackageContext(String, int): include the application code with the context. This means loading code into the caller's process, so that getClassLoader() can be used to instantiate the application's classes. Setting this flags imposes security restrictions on what application context you can access; if the requested application can not be safely loaded into your process, java.lang.SecurityException will be thrown. If this flag is not set, there will be no restrictions on the packages that can be loaded, but getClassLoader() will always return the default system class loader.

Constant Value: 1 (0x00000001)

CONTEXT_RESTRICTED

Added in API level 4

public static final int CONTEXT_RESTRICTED

Flag for use with createPackageContext(String, int): a restricted context may disable specific features. For instance, a View associated with a restricted context would ignore particular XML attributes.

Constant Value: 4 (0x00000004)

CREDENTIAL_SERVICE

Added in API level 34

public static final String CREDENTIAL_SERVICE

Use with getSystemService(java.lang.String) to retrieve a CredentialManager to authenticate a user to your app.

See also:

• getSystemService(String)
• CredentialManager

Constant Value: "credential"

CROSS_PROFILE_APPS_SERVICE

Added in API level 28

public static final String CROSS_PROFILE_APPS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a CrossProfileApps for cross profile operations.

See also:

• getSystemService(String)

Constant Value: "crossprofileapps"

DEVICE_ID_DEFAULT

Added in API level 34

public static final int DEVICE_ID_DEFAULT

The default device ID, which is the ID of the primary (non-virtual) device.

Constant Value: 0 (0x00000000)

DEVICE_ID_INVALID

Added in API level 34

public static final int DEVICE_ID_INVALID

Invalid device ID.

Constant Value: -1 (0xffffffff)

DEVICE_LOCK_SERVICE

Added in API level 34

public static final String DEVICE_LOCK_SERVICE

Use with getSystemService(java.lang.String) to retrieve a DeviceLockManager.

See also:

• getSystemService(String)

Constant Value: "device_lock"

DEVICE_POLICY_SERVICE

Added in API level 8

public static final String DEVICE_POLICY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a DevicePolicyManager for working with global device policy management.

See also:

• getSystemService(String)

Constant Value: "device_policy"

DISPLAY_HASH_SERVICE

Added in API level 31

public static final String DISPLAY_HASH_SERVICE

Use with getSystemService(java.lang.String) to access DisplayHashManager to handle display hashes.

See also:

• getSystemService(String)

Constant Value: "display_hash"

DISPLAY_SERVICE

Added in API level 17

public static final String DISPLAY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a DisplayManager for interacting with display devices.

See also:

• getSystemService(String)
• DisplayManager

Constant Value: "display"

DOMAIN_VERIFICATION_SERVICE

Added in API level 31

public static final String DOMAIN_VERIFICATION_SERVICE

Use with getSystemService(java.lang.String) to access DomainVerificationManager to retrieve approval and user state for declared web domains.

See also:

• getSystemService(String)
• DomainVerificationManager

Constant Value: "domain_verification"

DOWNLOAD_SERVICE

Added in API level 9

public static final String DOWNLOAD_SERVICE

Use with getSystemService(java.lang.String) to retrieve a DownloadManager for requesting HTTP downloads.

See also:

• getSystemService(String)

Constant Value: "download"

DROPBOX_SERVICE

Added in API level 8

public static final String DROPBOX_SERVICE

Use with getSystemService(java.lang.String) to retrieve a DropBoxManager instance for recording diagnostic logs.

See also:

• getSystemService(String)

Constant Value: "dropbox"

EUICC_SERVICE

Added in API level 28

public static final String EUICC_SERVICE

Use with getSystemService(java.lang.String) to retrieve a EuiccManager to manage the device eUICC (embedded SIM).

See also:

• getSystemService(String)
• EuiccManager

Constant Value: "euicc"

FILE_INTEGRITY_SERVICE

Added in API level 30

public static final String FILE_INTEGRITY_SERVICE

Use with getSystemService(java.lang.String) to retrieve an FileIntegrityManager.

See also:

• getSystemService(String)
• FileIntegrityManager

Constant Value: "file_integrity"

FINGERPRINT_SERVICE

Added in API level 23

public static final String FINGERPRINT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a FingerprintManager for handling management of fingerprints.

See also:

• getSystemService(String)
• FingerprintManager

Constant Value: "fingerprint"

GAME_SERVICE

Added in API level 31

public static final String GAME_SERVICE

Use with getSystemService(java.lang.String) to retrieve a GameManager.

See also:

• getSystemService(String)

Constant Value: "game"

GRAMMATICAL_INFLECTION_SERVICE

Added in API level 34

public static final String GRAMMATICAL_INFLECTION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a GrammaticalInflectionManager.

See also:

• getSystemService(String)

Constant Value: "grammatical_inflection"

HARDWARE_PROPERTIES_SERVICE

Added in API level 24

public static final String HARDWARE_PROPERTIES_SERVICE

Use with getSystemService(java.lang.String) to retrieve a HardwarePropertiesManager for accessing the hardware properties service.

See also:

• getSystemService(String)

Constant Value: "hardware_properties"

HEALTHCONNECT_SERVICE

Added in API level 34

public static final String HEALTHCONNECT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a HealthConnectManager.

See also:

• getSystemService(String)
• HealthConnectManager

Constant Value: "healthconnect"

INPUT_METHOD_SERVICE

Added in API level 3

public static final String INPUT_METHOD_SERVICE

Use with getSystemService(java.lang.String) to retrieve a InputMethodManager for accessing input methods.

See also:

• getSystemService(String)

Constant Value: "input_method"

INPUT_SERVICE

Added in API level 16

public static final String INPUT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a InputManager for interacting with input devices.

See also:

• getSystemService(String)
• InputManager

Constant Value: "input"

IPSEC_SERVICE

Added in API level 28

public static final String IPSEC_SERVICE

Use with getSystemService(java.lang.String) to retrieve a IpSecManager for encrypting Sockets or Networks with IPSec.

See also:

• getSystemService(String)

Constant Value: "ipsec"

JOB_SCHEDULER_SERVICE

Added in API level 21

public static final String JOB_SCHEDULER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a JobScheduler instance for managing occasional background tasks.

See also:

• getSystemService(String)
• JobScheduler

Constant Value: "jobscheduler"

KEYGUARD_SERVICE

Added in API level 1

public static final String KEYGUARD_SERVICE

Use with getSystemService(java.lang.String) to retrieve a KeyguardManager for controlling keyguard.

See also:

• getSystemService(String)
• KeyguardManager

Constant Value: "keyguard"

LAUNCHER_APPS_SERVICE

Added in API level 21

public static final String LAUNCHER_APPS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a LauncherApps for querying and monitoring launchable apps across profiles of a user.

See also:

• getSystemService(String)
• LauncherApps

Constant Value: "launcherapps"

LAYOUT_INFLATER_SERVICE

Added in API level 1

public static final String LAYOUT_INFLATER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a LayoutInflater for inflating layout resources in this context.

See also:

• getSystemService(String)
• LayoutInflater

Constant Value: "layout_inflater"

LOCALE_SERVICE

Added in API level 33

public static final String LOCALE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a LocaleManager.

See also:

• getSystemService(String)

Constant Value: "locale"

LOCATION_SERVICE

Added in API level 1

public static final String LOCATION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a LocationManager for controlling location updates.

See also:

• getSystemService(String)
• LocationManager

Constant Value: "location"

MEDIA_COMMUNICATION_SERVICE

Added in API level 31

public static final String MEDIA_COMMUNICATION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a MediaCommunicationManager for managing MediaSession2.

See also:

• getSystemService(String)
• MediaCommunicationManager

Constant Value: "media_communication"

MEDIA_METRICS_SERVICE

Added in API level 31

public static final String MEDIA_METRICS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a MediaMetricsManager for interacting with media metrics on the device.

See also:

• getSystemService(String)
• MediaMetricsManager

Constant Value: "media_metrics"

MEDIA_PROJECTION_SERVICE

Added in API level 21

public static final String MEDIA_PROJECTION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a MediaProjectionManager instance for managing media projection sessions.

See also:

• getSystemService(String)
• MediaProjectionManager

Constant Value: "media_projection"

MEDIA_ROUTER_SERVICE

Added in API level 16

public static final String MEDIA_ROUTER_SERVICE

Use with getSystemService(Class) to retrieve a MediaRouter for controlling and managing routing of media.

See also:

• getSystemService(String)
• MediaRouter

Constant Value: "media_router"

MEDIA_SESSION_SERVICE

Added in API level 21

public static final String MEDIA_SESSION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a MediaSessionManager for managing media Sessions.

See also:

• getSystemService(String)
• MediaSessionManager

Constant Value: "media_session"

MIDI_SERVICE

Added in API level 23

public static final String MIDI_SERVICE

Use with getSystemService(java.lang.String) to retrieve a MidiManager for accessing the MIDI service.

See also:

• getSystemService(String)

Constant Value: "midi"

MODE_APPEND

Added in API level 1

public static final int MODE_APPEND

File creation mode: for use with openFileOutput(String, int), if the file already exists then write data to the end of the existing file instead of erasing it.

See also:

• openFileOutput(String, int)

Constant Value: 32768 (0x00008000)

MODE_ENABLE_WRITE_AHEAD_LOGGING

Added in API level 16

public static final int MODE_ENABLE_WRITE_AHEAD_LOGGING

Database open flag: when set, the database is opened with write-ahead logging enabled by default.

See also:

• openOrCreateDatabase(String, int, CursorFactory)
• openOrCreateDatabase(String, int, CursorFactory, DatabaseErrorHandler)
• SQLiteDatabase.enableWriteAheadLogging()

Constant Value: 8 (0x00000008)

MODE_MULTI_PROCESS

Added in API level 11
Deprecated in API level 23

public static final int MODE_MULTI_PROCESS

This constant was deprecated in API level 23.
MODE_MULTI_PROCESS does not work reliably in some versions of Android, and furthermore does not provide any mechanism for reconciling concurrent modifications across processes. Applications should not attempt to use it. Instead, they should use an explicit cross-process data management approach such as ContentProvider.

SharedPreference loading flag: when set, the file on disk will be checked for modification even if the shared preferences instance is already loaded in this process. This behavior is sometimes desired in cases where the application has multiple processes, all writing to the same SharedPreferences file. Generally there are better forms of communication between processes, though.

This was the legacy (but undocumented) behavior in and before Gingerbread (Android 2.3) and this flag is implied when targeting such releases. For applications targeting SDK versions greater than Android 2.3, this flag must be explicitly set if desired.

See also:

• getSharedPreferences(String, int)

Constant Value: 4 (0x00000004)

MODE_NO_LOCALIZED_COLLATORS

Added in API level 24

public static final int MODE_NO_LOCALIZED_COLLATORS

Database open flag: when set, the database is opened without support for localized collators.

See also:

• openOrCreateDatabase(String, int, CursorFactory)
• openOrCreateDatabase(String, int, CursorFactory, DatabaseErrorHandler)
• SQLiteDatabase.NO_LOCALIZED_COLLATORS

Constant Value: 16 (0x00000010)

MODE_PRIVATE

Added in API level 1

public static final int MODE_PRIVATE

File creation mode: the default mode, where the created file can only be accessed by the calling application (or all applications sharing the same user ID).

Constant Value: 0 (0x00000000)

MODE_WORLD_READABLE

Added in API level 1
Deprecated in API level 17

public static final int MODE_WORLD_READABLE

This constant was deprecated in API level 17.
Creating world-readable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as ContentProvider, BroadcastReceiver, and Service. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.

File creation mode: allow all other applications to have read access to the created file.

Starting from Build.VERSION_CODES.N, attempting to use this mode throws a SecurityException.

See also:

• FileProvider
• Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Constant Value: 1 (0x00000001)

MODE_WORLD_WRITEABLE

Added in API level 1
Deprecated in API level 17

public static final int MODE_WORLD_WRITEABLE

This constant was deprecated in API level 17.
Creating world-writable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as ContentProvider, BroadcastReceiver, and Service. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.

File creation mode: allow all other applications to have write access to the created file.

Starting from Build.VERSION_CODES.N, attempting to use this mode will throw a SecurityException.

See also:

• FileProvider
• Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Constant Value: 2 (0x00000002)

NETWORK_STATS_SERVICE

Added in API level 23

public static final String NETWORK_STATS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a NetworkStatsManager for querying network usage stats.

See also:

• getSystemService(String)
• NetworkStatsManager

Constant Value: "netstats"

NFC_SERVICE

Added in API level 10

public static final String NFC_SERVICE

Use with getSystemService(java.lang.String) to retrieve a NfcManager for using NFC.

See also:

• getSystemService(String)

Constant Value: "nfc"

NOTIFICATION_SERVICE

Added in API level 1

public static final String NOTIFICATION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a NotificationManager for informing the user of background events.

See also:

• getSystemService(String)
• NotificationManager

Constant Value: "notification"

NSD_SERVICE

Added in API level 16

public static final String NSD_SERVICE

Use with getSystemService(java.lang.String) to retrieve a NsdManager for handling management of network service discovery

See also:

• getSystemService(String)
• NsdManager

Constant Value: "servicediscovery"

OVERLAY_SERVICE

Added in API level 34

public static final String OVERLAY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a OverlayManager for managing overlay packages.

See also:

• getSystemService(String)
• OverlayManager

Constant Value: "overlay"

PEOPLE_SERVICE

Added in API level 31

public static final String PEOPLE_SERVICE

Use with getSystemService(java.lang.String) to access a PeopleManager to interact with your published conversations.

See also:

• getSystemService(String)

Constant Value: "people"

PERFORMANCE_HINT_SERVICE

Added in API level 31

public static final String PERFORMANCE_HINT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a PerformanceHintManager for accessing the performance hinting service.

See also:

• getSystemService(String)

Constant Value: "performance_hint"

PERSISTENT_DATA_BLOCK_SERVICE

Added in API level 35

public static final String PERSISTENT_DATA_BLOCK_SERVICE

Use with getSystemService(java.lang.String) to retrieve a PersistentDataBlockManager instance for interacting with a storage device that lives across factory resets.

See also:

• getSystemService(String)
• PersistentDataBlockManager

Constant Value: "persistent_data_block"

POWER_SERVICE

Added in API level 1

public static final String POWER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a PowerManager for controlling power management, including "wake locks," which let you keep the device on while you're running long tasks.

Constant Value: "power"

PRINT_SERVICE

Added in API level 19

public static final String PRINT_SERVICE

PrintManager for printing and managing printers and print tasks.

See also:

• getSystemService(String)
• PrintManager

Constant Value: "print"

PROFILING_SERVICE

Added in API level 35

public static final String PROFILING_SERVICE

Use with getSystemService(java.lang.String) to retrieve an ProfilingManager.

See also:

• getSystemService(String)

Constant Value: "profiling"

RECEIVER_EXPORTED

Added in API level 33

public static final int RECEIVER_EXPORTED

Flag for registerReceiver(BroadcastReceiver, IntentFilter): The receiver can receive broadcasts from other Apps. Has the same behavior as marking a statically registered receiver with "exported=true"

Constant Value: 2 (0x00000002)

RECEIVER_NOT_EXPORTED

Added in API level 33

public static final int RECEIVER_NOT_EXPORTED

Flag for registerReceiver(BroadcastReceiver, IntentFilter): The receiver cannot receive broadcasts from other Apps. Has the same behavior as marking a statically registered receiver with "exported=false"

Constant Value: 4 (0x00000004)

RECEIVER_VISIBLE_TO_INSTANT_APPS

Added in API level 26

public static final int RECEIVER_VISIBLE_TO_INSTANT_APPS

Flag for registerReceiver(BroadcastReceiver, IntentFilter): The receiver can receive broadcasts from Instant Apps.

Constant Value: 1 (0x00000001)

RESTRICTIONS_SERVICE

Added in API level 21

public static final String RESTRICTIONS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a RestrictionsManager for retrieving application restrictions and requesting permissions for restricted operations.

See also:

• getSystemService(String)
• RestrictionsManager

Constant Value: "restrictions"

ROLE_SERVICE

Added in API level 29

public static final String ROLE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a RoleManager for managing roles.

See also:

• getSystemService(String)
• RoleManager

Constant Value: "role"

SEARCH_SERVICE

Added in API level 1

public static final String SEARCH_SERVICE

Use with getSystemService(java.lang.String) to retrieve a SearchManager for handling searches.

Configuration.UI_MODE_TYPE_WATCH does not support SearchManager.

See also:

• getSystemService(Class)
• SearchManager

Constant Value: "search"

SECURITY_STATE_SERVICE

Added in API level 35

public static final String SECURITY_STATE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a SecurityStateManager for accessing the security state manager service.

See also:

• getSystemService(String)
• SecurityStateManager

Constant Value: "security_state"

SENSOR_SERVICE

Added in API level 1

public static final String SENSOR_SERVICE

Use with getSystemService(java.lang.String) to retrieve a SensorManager for accessing sensors.

See also:

• getSystemService(String)
• SensorManager

Constant Value: "sensor"

SHORTCUT_SERVICE

Added in API level 25

public static final String SHORTCUT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a ShortcutManager for accessing the launcher shortcut service.

See also:

• getSystemService(String)
• ShortcutManager

Constant Value: "shortcut"

STATUS_BAR_SERVICE

Added in API level 33

public static final String STATUS_BAR_SERVICE

Use with getSystemService(java.lang.String) to retrieve a StatusBarManager for interacting with the status bar and quick settings.

See also:

• getSystemService(String)
• StatusBarManager

Constant Value: "statusbar"

STORAGE_SERVICE

Added in API level 9

public static final String STORAGE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a StorageManager for accessing system storage functions.

See also:

• getSystemService(String)
• StorageManager

Constant Value: "storage"

STORAGE_STATS_SERVICE

Added in API level 26

public static final String STORAGE_STATS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a StorageStatsManager for accessing system storage statistics.

See also:

• getSystemService(String)
• StorageStatsManager

Constant Value: "storagestats"

SYSTEM_HEALTH_SERVICE

Added in API level 24

public static final String SYSTEM_HEALTH_SERVICE

Use with getSystemService(java.lang.String) to retrieve a SystemHealthManager for accessing system health (battery, power, memory, etc) metrics.

See also:

• getSystemService(String)

Constant Value: "systemhealth"

TELECOM_SERVICE

Added in API level 21

public static final String TELECOM_SERVICE

Use with getSystemService(java.lang.String) to retrieve a TelecomManager to manage telecom-related features of the device.

See also:

• getSystemService(String)
• TelecomManager

Constant Value: "telecom"

TELEPHONY_IMS_SERVICE

Added in API level 30

public static final String TELEPHONY_IMS_SERVICE

Use with getSystemService(java.lang.String) to retrieve an ImsManager.

Constant Value: "telephony_ims"

TELEPHONY_SERVICE

Added in API level 1

public static final String TELEPHONY_SERVICE

Use with getSystemService(java.lang.String) to retrieve a TelephonyManager for handling management the telephony features of the device.

See also:

• getSystemService(String)
• TelephonyManager

Constant Value: "phone"

TELEPHONY_SUBSCRIPTION_SERVICE

Added in API level 22

public static final String TELEPHONY_SUBSCRIPTION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a SubscriptionManager for handling management the telephony subscriptions of the device.

See also:

• getSystemService(String)
• SubscriptionManager

Constant Value: "telephony_subscription_service"

TEXT_CLASSIFICATION_SERVICE

Added in API level 26

public static final String TEXT_CLASSIFICATION_SERVICE

Use with getSystemService(java.lang.String) to retrieve a TextClassificationManager for text classification services.

See also:

• getSystemService(String)
• TextClassificationManager

Constant Value: "textclassification"

TEXT_SERVICES_MANAGER_SERVICE

Added in API level 14

public static final String TEXT_SERVICES_MANAGER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a TextServicesManager for accessing text services.

See also:

• getSystemService(String)

Constant Value: "textservices"

TV_INPUT_SERVICE

Added in API level 21

public static final String TV_INPUT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a TvInputManager for interacting with TV inputs on the device.

See also:

• getSystemService(String)
• TvInputManager

Constant Value: "tv_input"

TV_INTERACTIVE_APP_SERVICE

Added in API level 33

public static final String TV_INTERACTIVE_APP_SERVICE

Use with getSystemService(java.lang.String) to retrieve a TvInteractiveAppManager for interacting with TV interactive applications on the device.

See also:

• getSystemService(String)
• TvInteractiveAppManager

Constant Value: "tv_interactive_app"

UI_MODE_SERVICE

Added in API level 8

public static final String UI_MODE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a UiModeManager for controlling UI modes.

See also:

• getSystemService(String)

Constant Value: "uimode"

USAGE_STATS_SERVICE

Added in API level 22

public static final String USAGE_STATS_SERVICE

Use with getSystemService(java.lang.String) to retrieve a UsageStatsManager for querying device usage stats.

See also:

• getSystemService(String)
• UsageStatsManager

Constant Value: "usagestats"

USB_SERVICE

Added in API level 12

public static final String USB_SERVICE

Use with getSystemService(java.lang.String) to retrieve a UsbManager for access to USB devices (as a USB host) and for controlling this device's behavior as a USB device.

See also:

• getSystemService(String)
• UsbManager

Constant Value: "usb"

USER_SERVICE

Added in API level 17

public static final String USER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a UserManager for managing users on devices that support multiple users.

See also:

• getSystemService(String)
• UserManager

Constant Value: "user"

VIBRATOR_MANAGER_SERVICE

Added in API level 31

public static final String VIBRATOR_MANAGER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a VibratorManager for accessing the device vibrators, interacting with individual ones and playing synchronized effects on multiple vibrators.

See also:

• getSystemService(String)
• VibratorManager

Constant Value: "vibrator_manager"

VIBRATOR_SERVICE

Added in API level 1
Deprecated in API level 31

public static final String VIBRATOR_SERVICE

This constant was deprecated in API level 31.
Use VibratorManager to retrieve the default system vibrator.

Use with getSystemService(java.lang.String) to retrieve a Vibrator for interacting with the vibration hardware.

See also:

• getSystemService(String)
• Vibrator

Constant Value: "vibrator"

VIRTUAL_DEVICE_SERVICE

Added in API level 34

public static final String VIRTUAL_DEVICE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a VirtualDeviceManager for managing virtual devices. On devices without PackageManager.FEATURE_COMPANION_DEVICE_SETUP system feature the getSystemService(java.lang.String) will return null.

See also:

• getSystemService(String)
• VirtualDeviceManager

Constant Value: "virtualdevice"

VPN_MANAGEMENT_SERVICE

Added in API level 30

public static final String VPN_MANAGEMENT_SERVICE

Use with getSystemService(java.lang.String) to retrieve a VpnManager to manage profiles for the platform built-in VPN.

See also:

• getSystemService(String)

Constant Value: "vpn_management"

WALLPAPER_SERVICE

Added in API level 1

public static final String WALLPAPER_SERVICE

Use with getSystemService(java.lang.String) to retrieve a com.android.server.WallpaperService for accessing wallpapers.

See also:

• getSystemService(String)

Constant Value: "wallpaper"

WIFI_AWARE_SERVICE

Added in API level 26

public static final String WIFI_AWARE_SERVICE

Use with getSystemService(java.lang.String) to retrieve a WifiAwareManager for handling management of Wi-Fi Aware.

See also:

• getSystemService(String)
• WifiAwareManager

Constant Value: "wifiaware"

WIFI_P2P_SERVICE

Added in API level 14

public static final String WIFI_P2P_SERVICE

Use with getSystemService(java.lang.String) to retrieve a WifiP2pManager for handling management of Wi-Fi peer-to-peer connections.

See also:

• getSystemService(String)
• WifiP2pManager

Constant Value: "wifip2p"

WIFI_RTT_RANGING_SERVICE

Added in API level 28

public static final String WIFI_RTT_RANGING_SERVICE

Use with getSystemService(java.lang.String) to retrieve a WifiRttManager for ranging devices with wifi.

See also:

• getSystemService(String)
• WifiRttManager

Constant Value: "wifirtt"

WIFI_SERVICE

Added in API level 1

public static final String WIFI_SERVICE

Use with getSystemService(java.lang.String) to retrieve a WifiManager for handling management of Wi-Fi access.

See also:

• getSystemService(String)
• WifiManager

Constant Value: "wifi"

WINDOW_SERVICE

Added in API level 1

public static final String WINDOW_SERVICE

Use with getSystemService(java.lang.String) to retrieve a WindowManager for accessing the system's window manager.

See also:

• getSystemService(String)
• WindowManager

Constant Value: "window"

Public constructors

Context

public Context ()

Public methods

bindIsolatedService

Added in API level 29

public boolean bindIsolatedService (Intent service, 
                int flags, 
                String instanceName, 
                Executor executor, 
                ServiceConnection conn)

Variation of bindService(Intent, BindServiceFlags, Executor, ServiceConnection) that, in the specific case of isolated services, allows the caller to generate multiple instances of a service from a single component declaration. In other words, you can use this to bind to a service that has specified R.attr.isolatedProcess and, in addition to the existing behavior of running in an isolated process, you can also through the arguments here have the system bring up multiple concurrent processes hosting their own instances of that service. The instanceName you provide here identifies the different instances, and you can use updateServiceGroup(android.content.ServiceConnection, int, int) to tell the system how it should manage each of these instances.

Parameters
service	Intent: Identifies the service to connect to. The Intent must specify an explicit component name. This value cannot be null.
flags	int: Operation options for the binding as per bindService(Intent, BindServiceFlags, Executor, ServiceConnection).
instanceName	String: Unique identifier for the service instance. Each unique name here will result in a different service instance being created. Identifiers must only contain ASCII letters, digits, underscores, and periods. This value cannot be null.
executor	Executor: Callbacks on ServiceConnection will be called on executor. Must use same instance for the same instance of ServiceConnection. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
conn	ServiceConnection: Receives information as the service is started and stopped. This must be a valid ServiceConnection object; it must not be null.

Returns
boolean	Returns success of binding as per bindService(Intent, BindServiceFlags, Executor, ServiceConnection).

Throws
SecurityException	If the caller does not have permission to access the service
IllegalArgumentException	If the instanceName is invalid.

See also:

• bindService(Intent, BindServiceFlags, Executor, ServiceConnection)
• updateServiceGroup(ServiceConnection, int, int)
• R.attr.isolatedProcess

bindIsolatedService

Added in API level 34

public boolean bindIsolatedService (Intent service, 
                Context.BindServiceFlags flags, 
                String instanceName, 
                Executor executor, 
                ServiceConnection conn)

See bindIsolatedService(android.content.Intent, int, java.lang.String, java.util.concurrent.Executor, android.content.ServiceConnection) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.

Parameters
service	Intent: This value cannot be null.
flags	Context.BindServiceFlags: This value cannot be null.
instanceName	String: This value cannot be null.
executor	Executor: This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
conn	ServiceConnection: This value cannot be null.

Returns
boolean

bindService

Added in API level 29

public boolean bindService (Intent service, 
                int flags, 
                Executor executor, 
                ServiceConnection conn)

Same as bindService(Intent, ServiceConnection, int) with executor to control ServiceConnection callbacks.

This method only accepts a 32 bits flag, to pass in a 64 bits flag, call bindService(android.content.Intent, android.content.Context.BindServiceFlags, java.util.concurrent.Executor, android.content.ServiceConnection) instead.

Parameters
service	Intent: This value cannot be null.
flags	int: Value is either 0 or a combination of BIND_AUTO_CREATE, BIND_DEBUG_UNBIND, BIND_NOT_FOREGROUND, BIND_ABOVE_CLIENT, BIND_ALLOW_OOM_MANAGEMENT, BIND_WAIVE_PRIORITY, BIND_IMPORTANT, BIND_ADJUST_WITH_ACTIVITY, BIND_NOT_PERCEPTIBLE, BIND_ALLOW_ACTIVITY_STARTS, BIND_INCLUDE_CAPABILITIES, BIND_SHARED_ISOLATED_PROCESS, android.content.Context.BIND_PACKAGE_ISOLATED_PROCESS, and BIND_EXTERNAL_SERVICE
executor	Executor: Callbacks on ServiceConnection will be called on executor. Must use same instance for the same instance of ServiceConnection. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
conn	ServiceConnection: This value cannot be null.

Returns
boolean	The result of the binding as described in bindService(Intent, ServiceConnection, int).

bindService

Added in API level 34

public boolean bindService (Intent service, 
                ServiceConnection conn, 
                Context.BindServiceFlags flags)

See bindService(android.content.Intent, android.content.ServiceConnection, int) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.

Parameters
service	Intent: This value cannot be null.
conn	ServiceConnection: This value cannot be null.
flags	Context.BindServiceFlags: This value cannot be null.

Returns
boolean

bindService

Added in API level 1

public abstract boolean bindService (Intent service, 
                ServiceConnection conn, 
                int flags)

Connects to an application service, creating it if needed. This defines a dependency between your application and the service. The given conn will receive the service object when it is created and be told if it dies and restarts. The service will be considered required by the system only for as long as the calling context exists. For example, if this Context is an Activity that is stopped, the service will not be required to continue running until the Activity is resumed.

If the service does not support binding, it may return null from its onBind() method. If it does, then the ServiceConnection's onNullBinding() method will be invoked instead of onServiceConnected().

Note: This method cannot be called from a BroadcastReceiver component. A pattern you can use to communicate from a BroadcastReceiver to a Service is to call startService(Intent) with the arguments containing the command to be sent, with the service calling its Service.stopSelf(int) method when done executing that command. See the API demo App/Service/Service Start Arguments Controller for an illustration of this. It is okay, however, to use this method from a BroadcastReceiver that has been registered with registerReceiver(BroadcastReceiver, IntentFilter), since the lifetime of this BroadcastReceiver is tied to another object (the one that registered it).

This method only accepts a int type flag, to pass in a long type flag, call bindService(android.content.Intent, android.content.ServiceConnection, android.content.Context.BindServiceFlags) instead.

Parameters
service	Intent: Identifies the service to connect to. The Intent must specify an explicit component name. This value cannot be null.
conn	ServiceConnection: Receives information as the service is started and stopped. This must be a valid ServiceConnection object; it must not be null.
flags	int: Operation options for the binding. Can be: 0 BIND_AUTO_CREATE BIND_DEBUG_UNBIND BIND_NOT_FOREGROUND BIND_ABOVE_CLIENT BIND_ALLOW_OOM_MANAGEMENT BIND_WAIVE_PRIORITY BIND_IMPORTANT BIND_ADJUST_WITH_ACTIVITY BIND_NOT_PERCEPTIBLE BIND_INCLUDE_CAPABILITIES

Returns
boolean	true if the system is in the process of bringing up a service that your client has permission to bind to; false if the system couldn't find the service or if your client doesn't have permission to bind to it. Regardless of the return value, you should later call unbindService(ServiceConnection) to release the connection.

Throws
SecurityException	If the caller does not have permission to access the service or the service cannot be found. Call unbindService(ServiceConnection) to release the connection when this exception is thrown.

See also:

• unbindService(ServiceConnection)
• startService(Intent)

bindService

Added in API level 34

public boolean bindService (Intent service, 
                Context.BindServiceFlags flags, 
                Executor executor, 
                ServiceConnection conn)

See bindService(android.content.Intent, int, java.util.concurrent.Executor, android.content.ServiceConnection) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.

Parameters
service	Intent: This value cannot be null.
flags	Context.BindServiceFlags: This value cannot be null.
executor	Executor: This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
conn	ServiceConnection: This value cannot be null.

Returns
boolean

bindServiceAsUser

Added in API level 30

public boolean bindServiceAsUser (Intent service, 
                ServiceConnection conn, 
                int flags, 
                UserHandle user)

Binds to a service in the given user in the same manner as bindService(Intent, BindServiceFlags, Executor, ServiceConnection).

Requires that one of the following conditions are met:

• caller has android.Manifest.permission.INTERACT_ACROSS_USERS_FULL
• caller has android.Manifest.permission.INTERACT_ACROSS_USERS and is the same package as the service (determined by its component's package) and the Android version is at least Build.VERSION_CODES.TIRAMISU
• caller has android.Manifest.permission.INTERACT_ACROSS_USERS and is in same profile group as the given user
• caller has android.Manifest.permission.INTERACT_ACROSS_PROFILES and is in same profile group as the given user and is the same package as the service

Parameters
service	Intent: Identifies the service to connect to. The Intent must specify an explicit component name. This value cannot be null.
conn	ServiceConnection: Receives information as the service is started and stopped. This must be a valid ServiceConnection object; it must not be null.
flags	int: Operation options for the binding. May be 0, BIND_AUTO_CREATE, BIND_DEBUG_UNBIND, BIND_NOT_FOREGROUND, BIND_ABOVE_CLIENT, BIND_ALLOW_OOM_MANAGEMENT, BIND_WAIVE_PRIORITY. BIND_IMPORTANT, or BIND_ADJUST_WITH_ACTIVITY.
user	UserHandle: This value cannot be null.

Returns
boolean	true if the system is in the process of bringing up a service that your client has permission to bind to; false if the system couldn't find the service. You should call unbindService(ServiceConnection) to release the connection even if this method returned false.

Throws
SecurityException	if the client does not have the required permission to bind.

bindServiceAsUser

Added in API level 34

public boolean bindServiceAsUser (Intent service, 
                ServiceConnection conn, 
                Context.BindServiceFlags flags, 
                UserHandle user)

See bindServiceAsUser(android.content.Intent, android.content.ServiceConnection, int, android.os.UserHandle) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.

Parameters
service	Intent: This value cannot be null.
conn	ServiceConnection: This value cannot be null.
flags	Context.BindServiceFlags: This value cannot be null.
user	UserHandle: This value cannot be null.

Returns
boolean

checkCallingOrSelfPermission

Added in API level 1

public abstract int checkCallingOrSelfPermission (String permission)

Determine whether the calling process of an IPC or you have been granted a particular permission. This is the same as checkCallingPermission(String), except it grants your own permissions if you are not currently processing an IPC. Use with care!

Parameters
permission	String: The name of the permission being checked. This value cannot be null.

Returns
int	PackageManager.PERMISSION_GRANTED if the calling pid/uid is allowed that permission, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• PackageManager.checkPermission(String, String)
• checkPermission(String, int, int)
• checkCallingPermission(String)

checkCallingOrSelfUriPermission

Added in API level 1

public abstract int checkCallingOrSelfUriPermission (Uri uri, 
                int modeFlags)

Determine whether the calling process of an IPC or you has been granted permission to access a specific URI. This is the same as checkCallingUriPermission(Uri, int), except it grants your own permissions if you are not currently processing an IPC. Use with care!

Parameters
uri	Uri: The uri that is being checked.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int	PackageManager.PERMISSION_GRANTED if the caller is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkCallingUriPermission(Uri, int)

checkCallingOrSelfUriPermissions

Added in API level 31

public int[] checkCallingOrSelfUriPermissions (List<Uri> uris, 
                int modeFlags)

Determine whether the calling process of an IPC or you has been granted permission to access a list of URIs. This is the same as checkCallingUriPermission(Uri, int), except it grants your own permissions if you are not currently processing an IPC. Use with care!

Parameters
uris	List: The list of URIs that is being checked. This value cannot be null.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int[]	Array of permission grants corresponding to each entry in the list of uris. PackageManager.PERMISSION_GRANTED if the given pid/uid is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. This value cannot be null. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkCallingUriPermission(Uri, int)

checkCallingPermission

Added in API level 1

public abstract int checkCallingPermission (String permission)

Determine whether the calling process of an IPC you are handling has been granted a particular permission. This is basically the same as calling checkPermission(java.lang.String, int, int) with the pid and uid returned by Binder.getCallingPid() and Binder.getCallingUid(). One important difference is that if you are not currently processing an IPC, this function will always fail. This is done to protect against accidentally leaking permissions; you can use checkCallingOrSelfPermission(String) to avoid this protection.

Parameters
permission	String: The name of the permission being checked. This value cannot be null.

Returns
int	PackageManager.PERMISSION_GRANTED if the calling pid/uid is allowed that permission, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• PackageManager.checkPermission(String, String)
• checkPermission(String, int, int)
• checkCallingOrSelfPermission(String)

checkCallingUriPermission

Added in API level 1

public abstract int checkCallingUriPermission (Uri uri, 
                int modeFlags)

Determine whether the calling process and uid has been granted permission to access a specific URI. This is basically the same as calling checkUriPermission(android.net.Uri, int, int, int) with the pid and uid returned by Binder.getCallingPid() and Binder.getCallingUid(). One important difference is that if you are not currently processing an IPC, this function will always fail.

Parameters
uri	Uri: The uri that is being checked.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int	PackageManager.PERMISSION_GRANTED if the caller is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkUriPermission(Uri, int, int, int)

checkCallingUriPermissions

Added in API level 31

public int[] checkCallingUriPermissions (List<Uri> uris, 
                int modeFlags)

Determine whether the calling process and uid has been granted permission to access a list of URIs. This is basically the same as calling checkUriPermissions(java.util.List, int, int, int) with the pid and uid returned by Binder.getCallingPid() and Binder.getCallingUid(). One important difference is that if you are not currently processing an IPC, this function will always fail.

Parameters
uris	List: The list of URIs that is being checked. This value cannot be null.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int[]	Array of permission grants corresponding to each entry in the list of uris. PackageManager.PERMISSION_GRANTED if the given pid/uid is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. This value cannot be null. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkUriPermission(Uri, int, int, int)

checkContentUriPermissionFull

Added in API level 35

public int checkContentUriPermissionFull (Uri uri, 
                int pid, 
                int uid, 
                int modeFlags)

Determine whether a particular process and uid has been granted permission to access a specific content URI.

Unlike checkUriPermission(android.net.Uri, int, int, int), this method checks for general access to the URI's content provider, as well as explicitly granted permissions.

Note, this check will throw an IllegalArgumentException for non-content URIs.

Parameters
uri	Uri: The content uri that is being checked. This value cannot be null.
pid	int: (Optional) The process ID being checked against. If the pid is unknown, pass -1.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int	PackageManager#PERMISSION_GRANTED if the given pid/uid is allowed to access that uri, or PackageManager#PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkUriPermission(Uri, int, int, int)

checkPermission

Added in API level 1

public abstract int checkPermission (String permission, 
                int pid, 
                int uid)

Determine whether the given permission is allowed for a particular process and user ID running in the system.

Parameters
permission	String: The name of the permission being checked. This value cannot be null.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.

Returns
int	PackageManager.PERMISSION_GRANTED if the given pid/uid is allowed that permission, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• PackageManager.checkPermission(String, String)
• checkCallingPermission(String)

checkSelfPermission

Added in API level 23

public abstract int checkSelfPermission (String permission)

Determine whether you have been granted a particular permission.

Parameters
permission	String: The name of the permission being checked. This value cannot be null.

Returns
int	PackageManager.PERMISSION_GRANTED if you have the permission, or PackageManager.PERMISSION_DENIED if not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• PackageManager.checkPermission(String, String)
• checkCallingPermission(String)

checkUriPermission

Added in API level 1

public abstract int checkUriPermission (Uri uri, 
                String readPermission, 
                String writePermission, 
                int pid, 
                int uid, 
                int modeFlags)

Check both a Uri and normal permission. This allows you to perform both checkPermission(String, int, int) and checkUriPermission(Uri, int, int, int) in one call.

Parameters
uri	Uri: The Uri whose permission is to be checked, or null to not do this check.
readPermission	String: The permission that provides overall read access, or null to not do this check.
writePermission	String: The permission that provides overall write access, or null to not do this check.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int	PackageManager.PERMISSION_GRANTED if the caller is allowed to access that uri or holds one of the given permissions, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

checkUriPermission

Added in API level 1

public abstract int checkUriPermission (Uri uri, 
                int pid, 
                int uid, 
                int modeFlags)

Determine whether a particular process and uid has been granted permission to access a specific URI. This only checks for permissions that have been explicitly granted -- if the given process/uid has more general access to the URI's content provider then this check will always fail.

Parameters
uri	Uri: The uri that is being checked.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
modeFlags	int: The access modes to check. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int	PackageManager.PERMISSION_GRANTED if the given pid/uid is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkCallingUriPermission(Uri, int)

checkUriPermissions

Added in API level 31

public int[] checkUriPermissions (List<Uri> uris, 
                int pid, 
                int uid, 
                int modeFlags)

Determine whether a particular process and uid has been granted permission to access a list of URIs. This only checks for permissions that have been explicitly granted -- if the given process/uid has more general access to the URI's content provider then this check will always fail. Note: On SDK Version Build.VERSION_CODES.S, calling this method from a secondary-user's context will incorrectly return PackageManager.PERMISSION_DENIED for all {code uris}.

Parameters
uris	List: The list of URIs that is being checked. This value cannot be null.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
modeFlags	int: The access modes to check for the list of uris Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

Returns
int[]	Array of permission grants corresponding to each entry in the list of uris. PackageManager.PERMISSION_GRANTED if the given pid/uid is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. This value cannot be null. Value is PackageManager.PERMISSION_GRANTED, or PackageManager.PERMISSION_DENIED

See also:

• checkCallingUriPermission(Uri, int)

clearWallpaper

Added in API level 1
Deprecated in API level 15

public abstract void clearWallpaper ()

This method was deprecated in API level 15.
Use WallpaperManager.clear() instead.

This method requires the caller to hold the permission Manifest.permission.SET_WALLPAPER.

Throws
IOException

createAttributionContext

Added in API level 30

public Context createAttributionContext (String attributionTag)

Return a new Context object for the current Context but attribute to a different tag. In complex apps attribution tagging can be used to distinguish between separate logical parts.

Parameters
attributionTag	String: The tag or null to create a context for the default.

Returns
Context	A Context that is tagged for the new attribution This value cannot be null.

See also:

• getAttributionTag()

createConfigurationContext

Added in API level 17

public abstract Context createConfigurationContext (Configuration overrideConfiguration)

Return a new Context object for the current Context but whose resources are adjusted to match the given Configuration. Each call to this method returns a new instance of a Context object; Context objects are not shared, however common state (ClassLoader, other Resources for the same configuration) may be so the Context itself can be fairly lightweight.

Parameters
overrideConfiguration	Configuration: A Configuration specifying what values to modify in the base Configuration of the original Context's resources. If the base configuration changes (such as due to an orientation change), the resources of this context will also change except for those that have been explicitly overridden with a value here. This value cannot be null.

Returns
Context	A Context with the given configuration override.

createContext

Added in API level 31

public Context createContext (ContextParams contextParams)

Creates a context with specific properties and behaviors.

Parameters
contextParams	ContextParams: Parameters for how the new context should behave. This value cannot be null.

Returns
Context	A context with the specified behaviors. This value cannot be null.

See also:

• ContextParams

createContextForSplit

Added in API level 26

public abstract Context createContextForSplit (String splitName)

Return a new Context object for the given split name. The new Context has a ClassLoader and Resources object that can access the split's and all of its dependencies' code/resources. Each call to this method returns a new instance of a Context object; Context objects are not shared, however common state (ClassLoader, other Resources for the same split) may be so the Context itself can be fairly lightweight.

Parameters
splitName	String: The name of the split to include, as declared in the split's AndroidManifest.xml.

Returns
Context	A Context with the given split's code and/or resources loaded.

Throws
PackageManager.NameNotFoundException

createDeviceContext

Added in API level 34

public Context createDeviceContext (int deviceId)

Returns a new Context object from the current context but with device association given by the deviceId. Each call to this method returns a new instance of a context object. Context objects are not shared; however, common state (such as the ClassLoader and other resources for the same configuration) can be shared, so the Context itself is lightweight.

Applications that run on virtual devices may use this method to access the default device capabilities and functionality (by passing Context.DEVICE_ID_DEFAULT. Similarly, applications running on the default device may access the functionality of virtual devices.

Note that the newly created instance will be associated with the same display as the parent Context, regardless of the device ID passed here.

Parameters
deviceId	int: The ID of the device to associate with this context.

Returns
Context	A context associated with the given device ID. This value cannot be null.

Throws
IllegalArgumentException	if the given device ID is not a valid ID of the default device or a virtual device.

See also:

• getDeviceId()
• VirtualDeviceManager.getVirtualDevices()

createDeviceProtectedStorageContext

Added in API level 24

public abstract Context createDeviceProtectedStorageContext ()

Return a new Context object for the current Context but whose storage APIs are backed by device-protected storage.

On devices with direct boot, data stored in this location is encrypted with a key tied to the physical device, and it can be accessed immediately after the device has booted successfully, both before and after the user has authenticated with their credentials (such as a lock pattern or PIN).

Because device-protected data is available without user authentication, you should carefully limit the data you store using this Context. For example, storing sensitive authentication tokens or passwords in the device-protected area is strongly discouraged.

If the underlying device does not have the ability to store device-protected and credential-protected data using different keys, then both storage areas will become available at the same time. They remain as two distinct storage locations on disk, and only the window of availability changes.

Each call to this method returns a new instance of a Context object; Context objects are not shared, however common state (ClassLoader, other Resources for the same configuration) may be so the Context itself can be fairly lightweight.

Returns
Context

See also:

• isDeviceProtectedStorage()

createDisplayContext

Added in API level 17

public abstract Context createDisplayContext (Display display)

Returns a new Context object from the current context but with resources adjusted to match the metrics of display. Each call to this method returns a new instance of a context object. Context objects are not shared; however, common state (such as the ClassLoader and other resources for the same configuration) can be shared, so the Context itself is lightweight.

Note: This Context is not expected to be updated with new configuration if the underlying display configuration changes and the cached Resources it returns could be stale. It is suggested to use DisplayManager.DisplayListener to listen for changes and re-create an instance if necessary.

This Context is not a UI context, do not use it to access UI components or obtain a WindowManager instance.

To obtain an instance of WindowManager configured to show windows on the given display, call createWindowContext(int, android.os.Bundle) on the returned display context, then call getSystemService(java.lang.String) or getSystemService(java.lang.Class) on the returned window context.

Parameters
display	Display: The display to which the current context's resources are adjusted. This value cannot be null.

Returns
Context	A context for the display.

createPackageContext

Added in API level 1

public abstract Context createPackageContext (String packageName, 
                int flags)

Return a new Context object for the given application name. This Context is the same as what the named application gets when it is launched, containing the same resources and class loader. Each call to this method returns a new instance of a Context object; Context objects are not shared, however they share common state (Resources, ClassLoader, etc) so the Context instance itself is fairly lightweight.

Throws PackageManager.NameNotFoundException if there is no application with the given package name.

Throws SecurityException if the Context requested can not be loaded into the caller's process for security reasons (see CONTEXT_INCLUDE_CODE for more information}.

Parameters
packageName	String: Name of the application's package.
flags	int: Option flags. Value is either 0 or a combination of CONTEXT_INCLUDE_CODE, CONTEXT_IGNORE_SECURITY, CONTEXT_RESTRICTED, android.content.Context.CONTEXT_DEVICE_PROTECTED_STORAGE, android.content.Context.CONTEXT_CREDENTIAL_PROTECTED_STORAGE, and android.content.Context.CONTEXT_REGISTER_PACKAGE

Returns
Context	A Context for the application.

Throws
SecurityException
PackageManager.NameNotFoundException	if there is no application with the given package name.

createWindowContext

Added in API level 30

public Context createWindowContext (int type, 
                Bundle options)

Creates a Context for a non-activity window.

A window context is a context that can be used to add non-activity windows, such as WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY. A window context must be created from a context that has an associated Display, such as Activity or a context created with createDisplayContext(android.view.Display).

The window context is created with the appropriate Configuration for the area of the display that the windows created with it can occupy; it must be used when inflating views, such that they can be inflated with proper Resources. Below is a sample code to add an application overlay window on the primary display:

 ...
 final DisplayManager dm = anyContext.getSystemService(DisplayManager.class);
 final Display primaryDisplay = dm.getDisplay(DEFAULT_DISPLAY);
 final Context windowContext = anyContext.createDisplayContext(primaryDisplay)
         .createWindowContext(TYPE_APPLICATION_OVERLAY, null);
 final View overlayView = Inflater.from(windowContext).inflate(someLayoutXml, null);

 // WindowManager.LayoutParams initialization
 ...
 // The types used in addView and createWindowContext must match.
 mParams.type = TYPE_APPLICATION_OVERLAY;
 ...

 windowContext.getSystemService(WindowManager.class).addView(overlayView, mParams);
 

This context's configuration and resources are adjusted to an area of the display where the windows with provided type will be added. Note that all windows associated with the same context will have an affinity and can only be moved together between different displays or areas on a display. If there is a need to add different window types, or non-associated windows, separate Contexts should be used.

Creating a window context is an expensive operation. Misuse of this API may lead to a huge performance drop. The best practice is to use the same window context when possible. An approach is to create one window context with specific window type and display and use it everywhere it's needed.

After Build.VERSION_CODES.S, window context provides the capability to receive configuration changes for existing token by overriding the token of the WindowManager.LayoutParams passed in WindowManager.addView(View, LayoutParams). This is useful when an application needs to attach its window to an existing activity for window token sharing use-case.

Note that the window context in Build.VERSION_CODES.R didn't have this capability. This is a no-op for the window context in Build.VERSION_CODES.R.

Below is sample code to attach an existing token to a window context:

 final DisplayManager dm = anyContext.getSystemService(DisplayManager.class);
 final Display primaryDisplay = dm.getDisplay(DEFAULT_DISPLAY);
 final Context windowContext = anyContext.createWindowContext(primaryDisplay,
         TYPE_APPLICATION, null);

 // Get an existing token.
 final IBinder existingToken = activity.getWindow().getAttributes().token;

 // The types used in addView() and createWindowContext() must match.
 final WindowManager.LayoutParams params = new WindowManager.LayoutParams(TYPE_APPLICATION);
 params.token = existingToken;

 // After WindowManager#addView(), the server side will extract the provided token from
 // LayoutParams#token (existingToken in the sample code), and switch to propagate
 // configuration changes from the node associated with the provided token.
 windowContext.getSystemService(WindowManager.class).addView(overlayView, mParams);
 

After Build.VERSION_CODES.S, window context provides the capability to listen to its Configuration changes by calling registerComponentCallbacks(android.content.ComponentCallbacks), while other kinds of Context will register the ComponentCallbacks to its Application context. Note that window context only propagate ComponentCallbacks.onConfigurationChanged(Configuration) callback. ComponentCallbacks.onLowMemory() or other callbacks in ComponentCallbacks2 won't be invoked.

Note that using Application or Service context for UI-related queries may result in layout or continuity issues on devices with variable screen sizes (e.g. foldables) or in multi-window modes, since these non-UI contexts may not reflect the Configuration changes for the visual container.

Parameters
type	int: Window type in WindowManager.LayoutParams Value is WindowManager.LayoutParams.TYPE_BASE_APPLICATION, WindowManager.LayoutParams.TYPE_APPLICATION, WindowManager.LayoutParams.TYPE_APPLICATION_STARTING, WindowManager.LayoutParams.TYPE_DRAWN_APPLICATION, WindowManager.LayoutParams.TYPE_APPLICATION_PANEL, WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA, WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ABOVE_SUB_PANEL, WindowManager.LayoutParams.TYPE_STATUS_BAR, WindowManager.LayoutParams.TYPE_SEARCH_BAR, WindowManager.LayoutParams.TYPE_PHONE, WindowManager.LayoutParams.TYPE_SYSTEM_ALERT, android.view.WindowManager.LayoutParams.TYPE_KEYGUARD, WindowManager.LayoutParams.TYPE_TOAST, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.TYPE_PRIORITY_PHONE, WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG, WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG, WindowManager.LayoutParams.TYPE_SYSTEM_ERROR, WindowManager.LayoutParams.TYPE_INPUT_METHOD, WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG, WindowManager.LayoutParams.TYPE_WALLPAPER, android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL, android.view.WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_DRAG, android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_SUB_PANEL, android.view.WindowManager.LayoutParams.TYPE_POINTER, android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR, android.view.WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_BOOT_PROGRESS, android.view.WindowManager.LayoutParams.TYPE_INPUT_CONSUMER, android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR_PANEL, android.view.WindowManager.LayoutParams.TYPE_DISPLAY_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_MAGNIFICATION_OVERLAY, WindowManager.LayoutParams.TYPE_PRIVATE_PRESENTATION, android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION, WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION_STARTING, android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER, android.view.WindowManager.LayoutParams.TYPE_QS_DIALOG, android.view.WindowManager.LayoutParams.TYPE_SCREENSHOT, android.view.WindowManager.LayoutParams.TYPE_PRESENTATION, WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_ACCESSIBILITY_MAGNIFICATION_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_NOTIFICATION_SHADE, or android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_ADDITIONAL
options	Bundle: A bundle used to pass window-related options This value may be null.

Returns
Context	A Context that can be used to create non-activity windows.

Throws
UnsupportedOperationException	if this Context does not attach to a display, such as Application or Service.

See also:

• getSystemService(String)
• getSystemService(Class)
• WINDOW_SERVICE
• LAYOUT_INFLATER_SERVICE
• WALLPAPER_SERVICE

createWindowContext

Added in API level 31

public Context createWindowContext (Display display, 
                int type, 
                Bundle options)

Creates a Context for a non-activity window on the given Display.

Similar to createWindowContext(int, android.os.Bundle), but the display is passed in, instead of implicitly using the original Context's Display.

Parameters
display	Display: The Display to associate with This value cannot be null.
type	int: Window type in WindowManager.LayoutParams Value is WindowManager.LayoutParams.TYPE_BASE_APPLICATION, WindowManager.LayoutParams.TYPE_APPLICATION, WindowManager.LayoutParams.TYPE_APPLICATION_STARTING, WindowManager.LayoutParams.TYPE_DRAWN_APPLICATION, WindowManager.LayoutParams.TYPE_APPLICATION_PANEL, WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA, WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ABOVE_SUB_PANEL, WindowManager.LayoutParams.TYPE_STATUS_BAR, WindowManager.LayoutParams.TYPE_SEARCH_BAR, WindowManager.LayoutParams.TYPE_PHONE, WindowManager.LayoutParams.TYPE_SYSTEM_ALERT, android.view.WindowManager.LayoutParams.TYPE_KEYGUARD, WindowManager.LayoutParams.TYPE_TOAST, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.TYPE_PRIORITY_PHONE, WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG, WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG, WindowManager.LayoutParams.TYPE_SYSTEM_ERROR, WindowManager.LayoutParams.TYPE_INPUT_METHOD, WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG, WindowManager.LayoutParams.TYPE_WALLPAPER, android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL, android.view.WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_DRAG, android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_SUB_PANEL, android.view.WindowManager.LayoutParams.TYPE_POINTER, android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR, android.view.WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_BOOT_PROGRESS, android.view.WindowManager.LayoutParams.TYPE_INPUT_CONSUMER, android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR_PANEL, android.view.WindowManager.LayoutParams.TYPE_DISPLAY_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_MAGNIFICATION_OVERLAY, WindowManager.LayoutParams.TYPE_PRIVATE_PRESENTATION, android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION, WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION_STARTING, android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER, android.view.WindowManager.LayoutParams.TYPE_QS_DIALOG, android.view.WindowManager.LayoutParams.TYPE_SCREENSHOT, android.view.WindowManager.LayoutParams.TYPE_PRESENTATION, WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_ACCESSIBILITY_MAGNIFICATION_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_NOTIFICATION_SHADE, or android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_ADDITIONAL
options	Bundle: A bundle used to pass window-related options. This value may be null.

Returns
Context	A Context that can be used to create non-activity windows. This value cannot be null.

Throws
IllegalArgumentException	if the Display is null.

See also:

• getSystemService(String)
• getSystemService(Class)
• WINDOW_SERVICE
• LAYOUT_INFLATER_SERVICE
• WALLPAPER_SERVICE

databaseList

Added in API level 1

public abstract String[] databaseList ()

Returns an array of strings naming the private databases associated with this Context's application package.

Returns
String[]	Array of strings naming the private databases.

See also:

• openOrCreateDatabase(String, int, CursorFactory)
• deleteDatabase(String)

deleteDatabase

Added in API level 1

public abstract boolean deleteDatabase (String name)

Delete an existing private SQLiteDatabase associated with this Context's application package.

Parameters
name	String: The name (unique in the application package) of the database.

Returns
boolean	true if the database was successfully deleted; else false.

See also:

• openOrCreateDatabase(String, int, CursorFactory)

deleteFile

Added in API level 1

public abstract boolean deleteFile (String name)

Delete the given private file associated with this Context's application package.

Parameters
name	String: The name of the file to delete; can not contain path separators.

Returns
boolean	true if the file was successfully deleted; else false.

See also:

• openFileInput(String)
• openFileOutput(String, int)
• fileList()
• File.delete()

deleteSharedPreferences

Added in API level 24

public abstract boolean deleteSharedPreferences (String name)

Delete an existing shared preferences file.

Parameters
name	String: The name (unique in the application package) of the shared preferences file.

Returns
boolean	true if the shared preferences file was successfully deleted; else false.

See also:

• getSharedPreferences(String, int)

enforceCallingOrSelfPermission

Added in API level 1

public abstract void enforceCallingOrSelfPermission (String permission, 
                String message)

If neither you nor the calling process of an IPC you are handling has been granted a particular permission, throw a SecurityException. This is the same as enforceCallingPermission(String, String), except it grants your own permissions if you are not currently processing an IPC. Use with care!

Parameters
permission	String: The name of the permission being checked. This value cannot be null.
message	String: A message to include in the exception if it is thrown. This value may be null.

See also:

• checkCallingOrSelfPermission(String)

enforceCallingOrSelfUriPermission

Added in API level 1

public abstract void enforceCallingOrSelfUriPermission (Uri uri, 
                int modeFlags, 
                String message)

If the calling process of an IPC or you has not been granted permission to access a specific URI, throw SecurityException. This is the same as enforceCallingUriPermission(Uri, int, String), except it grants your own permissions if you are not currently processing an IPC. Use with care!

Parameters
uri	Uri: The uri that is being checked.
modeFlags	int: The access modes to enforce. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION
message	String: A message to include in the exception if it is thrown.

See also:

• checkCallingOrSelfUriPermission(Uri, int)

enforceCallingPermission

Added in API level 1

public abstract void enforceCallingPermission (String permission, 
                String message)

If the calling process of an IPC you are handling has not been granted a particular permission, throw a SecurityException. This is basically the same as calling enforcePermission(java.lang.String, int, int, java.lang.String) with the pid and uid returned by Binder.getCallingPid() and Binder.getCallingUid(). One important difference is that if you are not currently processing an IPC, this function will always throw the SecurityException. This is done to protect against accidentally leaking permissions; you can use enforceCallingOrSelfPermission(String, String) to avoid this protection.

Parameters
permission	String: The name of the permission being checked. This value cannot be null.
message	String: A message to include in the exception if it is thrown. This value may be null.

See also:

• checkCallingPermission(String)

enforceCallingUriPermission

Added in API level 1

public abstract void enforceCallingUriPermission (Uri uri, 
                int modeFlags, 
                String message)

If the calling process and uid has not been granted permission to access a specific URI, throw SecurityException. This is basically the same as calling enforceUriPermission(android.net.Uri, int, int, int, java.lang.String) with the pid and uid returned by Binder.getCallingPid() and Binder.getCallingUid(). One important difference is that if you are not currently processing an IPC, this function will always throw a SecurityException.

Parameters
uri	Uri: The uri that is being checked.
modeFlags	int: The access modes to enforce. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION
message	String: A message to include in the exception if it is thrown.

See also:

• checkCallingUriPermission(Uri, int)

enforcePermission

Added in API level 1

public abstract void enforcePermission (String permission, 
                int pid, 
                int uid, 
                String message)

If the given permission is not allowed for a particular process and user ID running in the system, throw a SecurityException.

Parameters
permission	String: The name of the permission being checked. This value cannot be null.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
message	String: A message to include in the exception if it is thrown. This value may be null.

See also:

• checkPermission(String, int, int)

enforceUriPermission

Added in API level 1

public abstract void enforceUriPermission (Uri uri, 
                String readPermission, 
                String writePermission, 
                int pid, 
                int uid, 
                int modeFlags, 
                String message)

Enforce both a Uri and normal permission. This allows you to perform both enforcePermission(String, int, int, String) and enforceUriPermission(Uri, int, int, int, String) in one call.

Parameters
uri	Uri: The Uri whose permission is to be checked, or null to not do this check.
readPermission	String: The permission that provides overall read access, or null to not do this check.
writePermission	String: The permission that provides overall write access, or null to not do this check.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
modeFlags	int: The access modes to enforce. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION
message	String: A message to include in the exception if it is thrown. This value may be null.

See also:

• checkUriPermission(Uri, String, String, int, int, int)

enforceUriPermission

Added in API level 1

public abstract void enforceUriPermission (Uri uri, 
                int pid, 
                int uid, 
                int modeFlags, 
                String message)

If a particular process and uid has not been granted permission to access a specific URI, throw SecurityException. This only checks for permissions that have been explicitly granted -- if the given process/uid has more general access to the URI's content provider then this check will always fail.

Parameters
uri	Uri: The uri that is being checked.
pid	int: The process ID being checked against. Must be > 0.
uid	int: The UID being checked against. A uid of 0 is the root user, which will pass every permission check.
modeFlags	int: The access modes to enforce. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION
message	String: A message to include in the exception if it is thrown.

See also:

• checkUriPermission(Uri, int, int, int)

fileList

Added in API level 1

public abstract String[] fileList ()

Returns an array of strings naming the private files associated with this Context's application package.

Returns
String[]	Array of strings naming the private files.

See also:

• openFileInput(String)
• openFileOutput(String, int)
• deleteFile(String)

getApplicationContext

Added in API level 1

public abstract Context getApplicationContext ()

Return the context of the single, global Application object of the current process. This generally should only be used if you need a Context whose lifecycle is separate from the current context, that is tied to the lifetime of the process rather than the current component.

Consider for example how this interacts with registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter):

• If used from an Activity context, the receiver is being registered within that activity. This means that you are expected to unregister before the activity is done being destroyed; in fact if you do not do so, the framework will clean up your leaked registration as it removes the activity and log an error. Thus, if you use the Activity context to register a receiver that is static (global to the process, not associated with an Activity instance) then that registration will be removed on you at whatever point the activity you used is destroyed.

• If used from the Context returned here, the receiver is being registered with the global state associated with your application. Thus it will never be unregistered for you. This is necessary if the receiver is associated with static data, not a particular component. However using the ApplicationContext elsewhere can easily lead to serious leaks if you forget to unregister, unbind, etc.

Returns
Context

getApplicationInfo

Added in API level 4

public abstract ApplicationInfo getApplicationInfo ()

Return the full application info for this context's package.

Returns
ApplicationInfo

getAssets

Added in API level 1

public abstract AssetManager getAssets ()

Returns an AssetManager instance for the application's package.

Note: Implementations of this method should return an AssetManager instance that is consistent with the Resources instance returned by getResources(). For example, they should share the same Configuration object.

Returns
AssetManager	an AssetManager instance for the application's package

See also:

• getResources()

getAttributionSource

Added in API level 31

public AttributionSource getAttributionSource ()

Returns
AttributionSource	The identity of this context for permission purposes. This value cannot be null.

See also:

• AttributionSource

getAttributionTag

Added in API level 30

public String getAttributionTag ()

Attribution can be used in complex apps to logically separate parts of the app. E.g. a blogging app might also have a instant messaging app built in. In this case two separate tags can for used each sub-feature.

Returns
String	the attribution tag this context is for or null if this is the default.

getCacheDir

Added in API level 1

public abstract File getCacheDir ()

Returns the absolute path to the application specific cache directory on the filesystem.

The system will automatically delete files in this directory as disk space is needed elsewhere on the device. The system will always delete older files first, as reported by File.lastModified(). If desired, you can exert more control over how files are deleted using StorageManager.setCacheBehaviorGroup(File, boolean) and StorageManager.setCacheBehaviorTombstone(File, boolean).

Apps are strongly encouraged to keep their usage of cache space below the quota returned by StorageManager.getCacheQuotaBytes(java.util.UUID). If your app goes above this quota, your cached files will be some of the first to be deleted when additional disk space is needed. Conversely, if your app stays under this quota, your cached files will be some of the last to be deleted when additional disk space is needed.

Note that your cache quota will change over time depending on how frequently the user interacts with your app, and depending on how much system-wide disk space is used.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

Apps require no extra permissions to read or write to the returned path, since this path lives in their private storage.

Returns
File	The path of the directory holding application cache files.

See also:

• openFileOutput(String, int)
• getFileStreamPath(String)
• getDir(String, int)
• getExternalCacheDir()

getClassLoader

Added in API level 1

public abstract ClassLoader getClassLoader ()

Return a class loader you can use to retrieve classes in this package.

Returns
ClassLoader

getCodeCacheDir

Added in API level 21

public abstract File getCodeCacheDir ()

Returns the absolute path to the application specific cache directory on the filesystem designed for storing cached code.

The system will delete any files stored in this location both when your specific application is upgraded, and when the entire platform is upgraded.

This location is optimal for storing compiled or optimized code generated by your application at runtime.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

Apps require no extra permissions to read or write to the returned path, since this path lives in their private storage.

Returns
File	The path of the directory holding application code cache files.

getColor

Added in API level 23

public final int getColor (int id)

Returns a color associated with a particular resource ID and styled for the current theme.

Parameters
id	int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.

Returns
int	A single color value in the form 0xAARRGGBB.

Throws
Resources.NotFoundException	if the given ID does not exist.

getColorStateList

Added in API level 23

public final ColorStateList getColorStateList (int id)

Returns a color state list associated with a particular resource ID and styled for the current theme.

Parameters
id	int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.

Returns
ColorStateList	A color state list. This value cannot be null.

Throws
Resources.NotFoundException	if the given ID does not exist.

getContentResolver

Added in API level 1

public abstract ContentResolver getContentResolver ()

Return a ContentResolver instance for your application's package.

Returns
ContentResolver

getDataDir

Added in API level 24

public abstract File getDataDir ()

Returns the absolute path to the directory on the filesystem where all private files belonging to this app are stored. Apps should not use this path directly; they should instead use getFilesDir(), getCacheDir(), getDir(java.lang.String, int), or other storage APIs on this class.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

No additional permissions are required for the calling app to read or write files under the returned path.

Returns
File

See also:

• ApplicationInfo.dataDir

getDatabasePath

Added in API level 1

public abstract File getDatabasePath (String name)

Returns the absolute path on the filesystem where a database created with openOrCreateDatabase(String, int, CursorFactory) is stored.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

Parameters
name	String: The name of the database for which you would like to get its path.

Returns
File	An absolute path to the given database.

See also:

• openOrCreateDatabase(String, int, CursorFactory)

getDeviceId

Added in API level 34

public int getDeviceId ()

Gets the device ID this context is associated with. Applications can use this method to determine whether they are running on a virtual device and identify that device. The device ID of the host device is Context.DEVICE_ID_DEFAULT

If the underlying device ID is changed by the system, for example, when an Activity is moved to a different virtual device, applications can register to listen to changes by calling Context.registerDeviceIdChangeListener(Executor, IntConsumer).

This method will only return a reliable value for this instance if it was created with Context.createDeviceContext(int), or if this instance is a UI or Display Context. Contexts created with Context.createDeviceContext(int) will have an explicit device association, which will never change, even if the underlying device is closed or is removed. UI Contexts and Display Contexts are already associated with a display, so if the device association is not explicitly given, Context.getDeviceId() will return the ID of the device associated with the associated display. The system can assign an arbitrary device id value for Contexts not logically associated with a device.

Returns
int	the ID of the device this context is associated with.

See also:

• createDeviceContext(int)
• registerDeviceIdChangeListener(Executor, IntConsumer)
• isUiContext()

getDir

Added in API level 1

public abstract File getDir (String name, 
                int mode)

Retrieve, creating if needed, a new directory in which the application can place its own custom data files. You can use the returned File object to create and access files in this directory. Note that files created through a File object will only be accessible by your own application; you can only set the mode of the entire directory, not of individual files.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

Apps require no extra permissions to read or write to the returned path, since this path lives in their private storage.

Parameters
name	String: Name of the directory to retrieve. This is a directory that is created as part of your application data.
mode	int: Operating mode. Value is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, and MODE_APPEND

Returns
File	A File object for the requested directory. The directory will have been created if it does not already exist.

See also:

• openFileOutput(String, int)

getDisplay

Added in API level 30

public Display getDisplay ()

Get the display this context is associated with. Applications should use this method with Activity or a context associated with a Display via createDisplayContext(android.view.Display) to get a display object associated with a Context, or DisplayManager.getDisplay(int) to get a display object by id.

Returns
Display	Returns the Display object this context is associated with. This value cannot be null.

Throws
UnsupportedOperationException	if the method is called on an instance that is not associated with any display.

getDrawable

Added in API level 21

public final Drawable getDrawable (int id)

Returns a drawable object associated with a particular resource ID and styled for the current theme.

Parameters
id	int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.

Returns
Drawable	An object that can be used to draw this resource. This value may be null.

Throws
Resources.NotFoundException	if the given ID does not exist.

getExternalCacheDir

Added in API level 8

public abstract File getExternalCacheDir ()

Returns absolute path to application-specific directory on the primary shared/external storage device where the application can place cache files it owns. These files are internal to the application, and not typically visible to the user as media.

This is like getCacheDir() in that these files will be deleted when the application is uninstalled, however there are some important differences:

• The platform does not always monitor the space available in shared storage, and thus may not automatically delete these files. Apps should always manage the maximum space used in this location. Currently the only time files here will be deleted by the platform is when running on Build.VERSION_CODES.JELLY_BEAN_MR1 or later and Environment.isExternalStorageEmulated(File) returns true.
• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

If a shared storage device is emulated (as determined by Environment.isExternalStorageEmulated(File)), its contents are backed by a private user data partition, which means there is little benefit to storing data here instead of the private directory returned by getCacheDir().

Starting in Build.VERSION_CODES.KITKAT, no permissions are required to read or write to the returned path; it's always accessible to the calling app. This only applies to paths generated for package name of the calling application. To access paths belonging to other packages, Manifest.permission.WRITE_EXTERNAL_STORAGE and/or Manifest.permission.READ_EXTERNAL_STORAGE are required.

On devices with multiple users (as described by UserManager), each user has their own isolated shared storage. Applications only have access to the shared storage for the user they're running as.

The returned path may change over time if different shared storage media is inserted, so only relative paths should be persisted.

Returns
File	the absolute path to application-specific directory. May return null if shared storage is not currently available.

See also:

• getCacheDir()
• getExternalCacheDirs()
• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getExternalCacheDirs

Added in API level 19

public abstract File[] getExternalCacheDirs ()

Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place cache files it owns. These files are internal to the application, and not typically visible to the user as media.

This is like getCacheDir() in that these files will be deleted when the application is uninstalled, however there are some important differences:

• The platform does not always monitor the space available in shared storage, and thus may not automatically delete these files. Apps should always manage the maximum space used in this location. Currently the only time files here will be deleted by the platform is when running on Build.VERSION_CODES.JELLY_BEAN_MR1 or later and Environment.isExternalStorageEmulated(File) returns true.
• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

If a shared storage device is emulated (as determined by Environment.isExternalStorageEmulated(File)), its contents are backed by a private user data partition, which means there is little benefit to storing data here instead of the private directory returned by getCacheDir().

Shared storage devices returned here are considered a stable part of the device, including physical media slots under a protective cover. The returned paths do not include transient devices, such as USB flash drives connected to handheld devices.

An application may store data on any or all of the returned devices. For example, an app may choose to store large files on the device with the most available space, as measured by StatFs.

No additional permissions are required for the calling app to read or write files under the returned path. Write access outside of these paths on secondary external storage devices is not available.

The returned paths may change over time if different shared storage media is inserted, so only relative paths should be persisted.

Returns
File[]	the absolute paths to application-specific directories. Some individual paths may be null if that shared storage is not currently available. The first path returned is the same as getExternalCacheDir().

See also:

• getExternalCacheDir()
• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getExternalFilesDir

Added in API level 8

public abstract File getExternalFilesDir (String type)

Returns the absolute path to the directory on the primary shared/external storage device where the application can place persistent files it owns. These files are internal to the applications, and not typically visible to the user as media.

This is like getFilesDir() in that these files will be deleted when the application is uninstalled, however there are some important differences:

• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

If a shared storage device is emulated (as determined by Environment.isExternalStorageEmulated(File)), its contents are backed by a private user data partition, which means there is little benefit to storing data here instead of the private directories returned by getFilesDir(), etc.

Starting in Build.VERSION_CODES.KITKAT, no permissions are required to read or write to the returned path; it's always accessible to the calling app. This only applies to paths generated for package name of the calling application. To access paths belonging to other packages, Manifest.permission.WRITE_EXTERNAL_STORAGE and/or Manifest.permission.READ_EXTERNAL_STORAGE are required.

On devices with multiple users (as described by UserManager), each user has their own isolated shared storage. Applications only have access to the shared storage for the user they're running as.

The returned path may change over time if different shared storage media is inserted, so only relative paths should be persisted.

Here is an example of typical code to manipulate a file in an application's shared storage:

void createExternalStoragePrivateFile() {
    // Create a path where we will place our private file on external
    // storage.
    File file = new File(getExternalFilesDir(null), "DemoFile.jpg");

    try {
        // Very simple code to copy a picture from the application's
        // resource into the external file.  Note that this code does
        // no error checking, and assumes the picture is small (does not
        // try to copy it in chunks).  Note that if external storage is
        // not currently mounted this will silently fail.
        InputStream is = getResources().openRawResource(R.drawable.balloons);
        OutputStream os = new FileOutputStream(file);
        byte[] data = new byte[is.available()];
        is.read(data);
        os.write(data);
        is.close();
        os.close();
    } catch (IOException e) {
        // Unable to create file, likely because external storage is
        // not currently mounted.
        Log.w("ExternalStorage", "Error writing " + file, e);
    }
}

void deleteExternalStoragePrivateFile() {
    // Get path for the file on external storage.  If external
    // storage is not currently mounted this will fail.
    File file = new File(getExternalFilesDir(null), "DemoFile.jpg");
    file.delete();
}

boolean hasExternalStoragePrivateFile() {
    // Get path for the file on external storage.  If external
    // storage is not currently mounted this will fail.
    File file = new File(getExternalFilesDir(null), "DemoFile.jpg");
    return file.exists();
}

If you supply a non-null type to this function, the returned file will be a path to a sub-directory of the given type. Though these files are not automatically scanned by the media scanner, you can explicitly add them to the media database with MediaScannerConnection.scanFile. Note that this is not the same as Environment.getExternalStoragePublicDirectory(), which provides directories of media shared by all applications. The directories returned here are owned by the application, and their contents will be removed when the application is uninstalled. Unlike Environment.getExternalStoragePublicDirectory(), the directory returned here will be automatically created for you.

Here is an example of typical code to manipulate a picture in an application's shared storage and add it to the media database:

void createExternalStoragePrivatePicture() {
    // Create a path where we will place our picture in our own private
    // pictures directory.  Note that we don't really need to place a
    // picture in DIRECTORY_PICTURES, since the media scanner will see
    // all media in these directories; this may be useful with other
    // media types such as DIRECTORY_MUSIC however to help it classify
    // your media for display to the user.
    File path = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
    File file = new File(path, "DemoPicture.jpg");

    try {
        // Very simple code to copy a picture from the application's
        // resource into the external file.  Note that this code does
        // no error checking, and assumes the picture is small (does not
        // try to copy it in chunks).  Note that if external storage is
        // not currently mounted this will silently fail.
        InputStream is = getResources().openRawResource(R.drawable.balloons);
        OutputStream os = new FileOutputStream(file);
        byte[] data = new byte[is.available()];
        is.read(data);
        os.write(data);
        is.close();
        os.close();

        // Tell the media scanner about the new file so that it is
        // immediately available to the user.
        MediaScannerConnection.scanFile(this,
                new String[] { file.toString() }, null,
                new MediaScannerConnection.OnScanCompletedListener() {
            public void onScanCompleted(String path, Uri uri) {
                Log.i("ExternalStorage", "Scanned " + path + ":");
                Log.i("ExternalStorage", "-> uri=" + uri);
            }
        });
    } catch (IOException e) {
        // Unable to create file, likely because external storage is
        // not currently mounted.
        Log.w("ExternalStorage", "Error writing " + file, e);
    }
}

void deleteExternalStoragePrivatePicture() {
    // Create a path where we will place our picture in the user's
    // public pictures directory and delete the file.  If external
    // storage is not currently mounted this will fail.
    File path = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
    if (path != null) {
        File file = new File(path, "DemoPicture.jpg");
        file.delete();
    }
}

boolean hasExternalStoragePrivatePicture() {
    // Create a path where we will place our picture in the user's
    // public pictures directory and check if the file exists.  If
    // external storage is not currently mounted this will think the
    // picture doesn't exist.
    File path = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
    if (path != null) {
        File file = new File(path, "DemoPicture.jpg");
        return file.exists();
    }
    return false;
}

Parameters
type	String: The type of files directory to return. May be null for the root of the files directory or one of the following constants for a subdirectory: Environment.DIRECTORY_MUSIC, Environment.DIRECTORY_PODCASTS, Environment.DIRECTORY_RINGTONES, Environment.DIRECTORY_ALARMS, Environment.DIRECTORY_NOTIFICATIONS, Environment.DIRECTORY_PICTURES, or Environment.DIRECTORY_MOVIES.

Returns
File	the absolute path to application-specific directory. May return null if shared storage is not currently available.

See also:

• getFilesDir()
• getExternalFilesDirs(String)
• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getExternalFilesDirs

Added in API level 19

public abstract File[] getExternalFilesDirs (String type)

Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place persistent files it owns. These files are internal to the application, and not typically visible to the user as media.

This is like getFilesDir() in that these files will be deleted when the application is uninstalled, however there are some important differences:

• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

If a shared storage device is emulated (as determined by Environment.isExternalStorageEmulated(File)), its contents are backed by a private user data partition, which means there is little benefit to storing data here instead of the private directories returned by getFilesDir(), etc.

Shared storage devices returned here are considered a stable part of the device, including physical media slots under a protective cover. The returned paths do not include transient devices, such as USB flash drives connected to handheld devices.

An application may store data on any or all of the returned devices. For example, an app may choose to store large files on the device with the most available space, as measured by StatFs.

No additional permissions are required for the calling app to read or write files under the returned path. Write access outside of these paths on secondary external storage devices is not available.

The returned path may change over time if different shared storage media is inserted, so only relative paths should be persisted.

Parameters
type	String: The type of files directory to return. May be null for the root of the files directory or one of the following constants for a subdirectory: Environment.DIRECTORY_MUSIC, Environment.DIRECTORY_PODCASTS, Environment.DIRECTORY_RINGTONES, Environment.DIRECTORY_ALARMS, Environment.DIRECTORY_NOTIFICATIONS, Environment.DIRECTORY_PICTURES, or Environment.DIRECTORY_MOVIES.

Returns
File[]	the absolute paths to application-specific directories. Some individual paths may be null if that shared storage is not currently available. The first path returned is the same as getExternalFilesDir(java.lang.String).

See also:

• getExternalFilesDir(String)
• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getExternalMediaDirs

Added in API level 21
Deprecated in API level 30

public abstract File[] getExternalMediaDirs ()

This method was deprecated in API level 30.
These directories still exist and are scanned, but developers are encouraged to migrate to inserting content into a MediaStore collection directly, as any app can contribute new media to MediaStore with no permissions required, starting in Build.VERSION_CODES.Q.

Returns absolute paths to application-specific directories on all shared/external storage devices where the application can place media files. These files are scanned and made available to other apps through MediaStore.

This is like getExternalFilesDirs(String) in that these files will be deleted when the application is uninstalled, however there are some important differences:

• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

Shared storage devices returned here are considered a stable part of the device, including physical media slots under a protective cover. The returned paths do not include transient devices, such as USB flash drives connected to handheld devices.

An application may store data on any or all of the returned devices. For example, an app may choose to store large files on the device with the most available space, as measured by StatFs.

No additional permissions are required for the calling app to read or write files under the returned path. Write access outside of these paths on secondary external storage devices is not available.

The returned paths may change over time if different shared storage media is inserted, so only relative paths should be persisted.

Returns
File[]	the absolute paths to application-specific directories. Some individual paths may be null if that shared storage is not currently available.

See also:

• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getFileStreamPath

Added in API level 1

public abstract File getFileStreamPath (String name)

Returns the absolute path on the filesystem where a file created with openFileOutput(String, int) is stored.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

Parameters
name	String: The name of the file for which you would like to get its path.

Returns
File	An absolute path to the given file.

See also:

• openFileOutput(String, int)
• getFilesDir()
• getDir(String, int)

getFilesDir

Added in API level 1

public abstract File getFilesDir ()

Returns the absolute path to the directory on the filesystem where files created with openFileOutput(String, int) are stored.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

No additional permissions are required for the calling app to read or write files under the returned path.

Returns
File	The path of the directory holding application files.

See also:

• openFileOutput(String, int)
• getFileStreamPath(String)
• getDir(String, int)

getMainExecutor

Added in API level 28

public Executor getMainExecutor ()

Return an Executor that will run enqueued tasks on the main thread associated with this context. This is the thread used to dispatch calls to application components (activities, services, etc).

Returns
Executor

getMainLooper

Added in API level 1

public abstract Looper getMainLooper ()

Return the Looper for the main thread of the current process. This is the thread used to dispatch calls to application components (activities, services, etc).

By definition, this method returns the same result as would be obtained by calling Looper.getMainLooper().

Returns
Looper	The main looper.

getNoBackupFilesDir

Added in API level 21

public abstract File getNoBackupFilesDir ()

Returns the absolute path to the directory on the filesystem similar to getFilesDir(). The difference is that files placed under this directory will be excluded from automatic backup to remote storage. See BackupAgent for a full discussion of the automatic backup mechanism in Android.

The returned path may change over time if the calling app is moved to an adopted storage device, so only relative paths should be persisted.

No additional permissions are required for the calling app to read or write files under the returned path.

Returns
File	The path of the directory holding application files that will not be automatically backed up to remote storage.

See also:

• openFileOutput(String, int)
• getFileStreamPath(String)
• getDir(String, int)
• BackupAgent

getObbDir

Added in API level 11

public abstract File getObbDir ()

Return the primary shared/external storage directory where this application's OBB files (if there are any) can be found. Note if the application does not have any OBB files, this directory may not exist.

This is like getFilesDir() in that these files will be deleted when the application is uninstalled, however there are some important differences:

• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

Starting in Build.VERSION_CODES.KITKAT, no permissions are required to read or write to the path that this method returns. However, starting from Build.VERSION_CODES.M, to read the OBB expansion files, you must declare the Manifest.permission.READ_EXTERNAL_STORAGE permission in the app manifest and ask for permission at runtime as follows:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="23" />

Starting from Build.VERSION_CODES.N, Manifest.permission.READ_EXTERNAL_STORAGE permission is not required, so don\u2019t ask for this permission at runtime. To handle both cases, your app must first try to read the OBB file, and if it fails, you must request Manifest.permission.READ_EXTERNAL_STORAGE permission at runtime.

The following code snippet shows how to do this:

 File obb = new File(obb_filename);
 boolean open_failed = false;

 try {
     BufferedReader br = new BufferedReader(new FileReader(obb));
     open_failed = false;
     ReadObbFile(br);
 } catch (IOException e) {
     open_failed = true;
 }

 if (open_failed) {
     // request READ_EXTERNAL_STORAGE permission before reading OBB file
     ReadObbFileWithPermission();
 }
 

On devices with multiple users (as described by UserManager), multiple users may share the same OBB storage location. Applications should ensure that multiple instances running under different users don't interfere with each other.

Returns
File	the absolute path to application-specific directory. May return null if shared storage is not currently available.

See also:

• getObbDirs()
• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getObbDirs

Added in API level 19

public abstract File[] getObbDirs ()

Returns absolute paths to application-specific directories on all shared/external storage devices where the application's OBB files (if there are any) can be found. Note if the application does not have any OBB files, these directories may not exist.

This is like getFilesDir() in that these files will be deleted when the application is uninstalled, however there are some important differences:

• Shared storage may not always be available, since removable media can be ejected by the user. Media state can be checked using Environment.getExternalStorageState(File).
• There is no security enforced with these files. For example, any application holding Manifest.permission.WRITE_EXTERNAL_STORAGE can write to these files.

Shared storage devices returned here are considered a stable part of the device, including physical media slots under a protective cover. The returned paths do not include transient devices, such as USB flash drives connected to handheld devices.

An application may store data on any or all of the returned devices. For example, an app may choose to store large files on the device with the most available space, as measured by StatFs.

No additional permissions are required for the calling app to read or write files under the returned path. Write access outside of these paths on secondary external storage devices is not available.

Returns
File[]	the absolute paths to application-specific directories. Some individual paths may be null if that shared storage is not currently available. The first path returned is the same as getObbDir()

See also:

• getObbDir()
• Environment.getExternalStorageState(File)
• Environment.isExternalStorageEmulated(File)
• Environment.isExternalStorageRemovable(File)

getOpPackageName

Added in API level 29

public String getOpPackageName ()

Return the package name that should be used for AppOpsManager calls from this context, so that app ops manager's uid verification will work with the name.

This is not generally intended for third party application developers.

Returns
String	This value cannot be null.

getPackageCodePath

Added in API level 8

public abstract String getPackageCodePath ()

Return the full path to this context's primary Android package. The Android package is a ZIP file which contains application's primary code and assets.

Note: this is not generally useful for applications, since they should not be directly accessing the file system.

Returns
String	String Path to the code and assets.

getPackageManager

Added in API level 1

public abstract PackageManager getPackageManager ()

Return PackageManager instance to find global package information.

Returns
PackageManager

getPackageName

Added in API level 1

public abstract String getPackageName ()

Return the name of this application's package.

Returns
String

getPackageResourcePath

Added in API level 8

public abstract String getPackageResourcePath ()

Return the full path to this context's primary Android package. The Android package is a ZIP file which contains the application's primary resources.

Note: this is not generally useful for applications, since they should not be directly accessing the file system.

Returns
String	String Path to the resources.

getParams

Added in API level 31

public ContextParams getParams ()

Return the set of parameters which this Context was created with, if it was created via createContext(android.content.ContextParams).

Returns
ContextParams	This value may be null.

getResources

Added in API level 1

public abstract Resources getResources ()

Returns a Resources instance for the application's package.

Note: Implementations of this method should return a Resources instance that is consistent with the AssetManager instance returned by getAssets(). For example, they should share the same Configuration object.

Returns
Resources	a Resources instance for the application's package

See also:

• getAssets()

getSharedPreferences

Added in API level 1

public abstract SharedPreferences getSharedPreferences (String name, 
                int mode)

Retrieve and hold the contents of the preferences file 'name', returning a SharedPreferences through which you can retrieve and modify its values. Only one instance of the SharedPreferences object is returned to any callers for the same name, meaning they will see each other's edits as soon as they are made.

This method is thread-safe.

If the preferences directory does not already exist, it will be created when this method is called.

If a preferences file by this name does not exist, it will be created when you retrieve an editor (SharedPreferences.edit()) and then commit changes (SharedPreferences.Editor.commit() or SharedPreferences.Editor.apply()).

Parameters
name	String: Desired preferences file.
mode	int: Operating mode. Value is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, and MODE_MULTI_PROCESS

Returns
SharedPreferences	The single SharedPreferences instance that can be used to retrieve and modify the preference values.

See also:

• MODE_PRIVATE

getString

Added in API level 1

public final String getString (int resId)

Returns a localized string from the application's package's default string table.

Parameters
resId	int: Resource id for the string

Returns
String	The string data associated with the resource, stripped of styled text information. This value cannot be null.

getString

Added in API level 1

public final String getString (int resId, 
                Object... formatArgs)

Returns a localized formatted string from the application's package's default string table, substituting the format arguments as defined in Formatter and String.format(String, Object).

Parameters
resId	int: Resource id for the format string
formatArgs	Object: The format arguments that will be used for substitution.

Returns
String	The string data associated with the resource, formatted and stripped of styled text information. This value cannot be null.

getSystemService

Added in API level 23

public final T getSystemService (Class<T> serviceClass)

Return the handle to a system-level service by class.

Currently available classes are: WindowManager, LayoutInflater, ActivityManager, PowerManager, AlarmManager, NotificationManager, KeyguardManager, LocationManager, SearchManager, Vibrator, ConnectivityManager, WifiManager, AudioManager, MediaRouter, TelephonyManager, SubscriptionManager, InputMethodManager, UiModeManager, DownloadManager, BatteryManager, JobScheduler, NetworkStatsManager, DomainVerificationManager, DisplayHashManager.

Note: System services obtained via this API may be closely associated with the Context in which they are obtained from. In general, do not share the service objects between various different contexts (Activities, Applications, Services, Providers, etc.)

Note: Instant apps, for which PackageManager.isInstantApp() returns true, don't have access to the following system services: DEVICE_POLICY_SERVICE, FINGERPRINT_SERVICE, KEYGUARD_SERVICE, SHORTCUT_SERVICE, USB_SERVICE, WALLPAPER_SERVICE, WIFI_P2P_SERVICE, WIFI_SERVICE, WIFI_AWARE_SERVICE. For these services this method will return null. Generally, if you are running as an instant app you should always check whether the result of this method is null.

Parameters
serviceClass	Class: The class of the desired service. This value cannot be null.

Returns
T	The service or null if the class is not a supported system service. Note: never throw a RuntimeException if the name is not supported.

getSystemService

Added in API level 1

public abstract Object getSystemService (String name)

Return the handle to a system-level service by name. The class of the returned object varies by the requested name. Currently available names are:

WINDOW_SERVICE ("window")

The top-level window manager in which you can place custom windows. The returned object is a WindowManager. Must only be obtained from a visual context such as Activity or a Context created with createWindowContext(int, android.os.Bundle), which are adjusted to the configuration and visual bounds of an area on screen.

LAYOUT_INFLATER_SERVICE ("layout_inflater")

A LayoutInflater for inflating layout resources in this context. Must only be obtained from a visual context such as Activity or a Context created with createWindowContext(int, android.os.Bundle), which are adjusted to the configuration and visual bounds of an area on screen.

ACTIVITY_SERVICE ("activity")

A ActivityManager for interacting with the global activity state of the system.

WALLPAPER_SERVICE ("wallpaper")

A WallpaperService for accessing wallpapers in this context. Must only be obtained from a visual context such as Activity or a Context created with createWindowContext(int, android.os.Bundle), which are adjusted to the configuration and visual bounds of an area on screen.

POWER_SERVICE ("power")

A PowerManager for controlling power management.

ALARM_SERVICE ("alarm")

A AlarmManager for receiving intents at the time of your choosing.

NOTIFICATION_SERVICE ("notification")

A NotificationManager for informing the user of background events.

KEYGUARD_SERVICE ("keyguard")

A KeyguardManager for controlling keyguard.

LOCATION_SERVICE ("location")

A LocationManager for controlling location (e.g., GPS) updates.

SEARCH_SERVICE ("search")

A SearchManager for handling search.

VIBRATOR_MANAGER_SERVICE ("vibrator_manager")

A VibratorManager for accessing the device vibrators, interacting with individual ones and playing synchronized effects on multiple vibrators.

VIBRATOR_SERVICE ("vibrator")

A Vibrator for interacting with the vibrator hardware.

CONNECTIVITY_SERVICE ("connectivity")

A ConnectivityManager for handling management of network connections.

IPSEC_SERVICE ("ipsec")

A IpSecManager for managing IPSec on sockets and networks.

WIFI_SERVICE ("wifi")

A WifiManager for management of Wi-Fi connectivity. On releases before Android 7, it should only be obtained from an application context, and not from any other derived context to avoid memory leaks within the calling process.

WIFI_AWARE_SERVICE ("wifiaware")

A WifiAwareManager for management of Wi-Fi Aware discovery and connectivity.

WIFI_P2P_SERVICE ("wifip2p")

A WifiP2pManager for management of Wi-Fi Direct connectivity.

INPUT_METHOD_SERVICE ("input_method")

An InputMethodManager for management of input methods.

UI_MODE_SERVICE ("uimode")

An UiModeManager for controlling UI modes.

DOWNLOAD_SERVICE ("download")

A DownloadManager for requesting HTTP downloads

BATTERY_SERVICE ("batterymanager")

A BatteryManager for managing battery state

JOB_SCHEDULER_SERVICE ("taskmanager")

A JobScheduler for managing scheduled tasks

NETWORK_STATS_SERVICE ("netstats")

A NetworkStatsManager for querying network usage statistics.

HARDWARE_PROPERTIES_SERVICE ("hardware_properties")

A HardwarePropertiesManager for accessing hardware properties.

DOMAIN_VERIFICATION_SERVICE ("domain_verification")

A DomainVerificationManager for accessing web domain approval state.

DISPLAY_HASH_SERVICE ("display_hash")

A DisplayHashManager for management of display hashes.

Note: System services obtained via this API may be closely associated with the Context in which they are obtained from. In general, do not share the service objects between various different contexts (Activities, Applications, Services, Providers, etc.)

Note: Instant apps, for which PackageManager.isInstantApp() returns true, don't have access to the following system services: DEVICE_POLICY_SERVICE, FINGERPRINT_SERVICE, KEYGUARD_SERVICE, SHORTCUT_SERVICE, USB_SERVICE, WALLPAPER_SERVICE, WIFI_P2P_SERVICE, WIFI_SERVICE, WIFI_AWARE_SERVICE. For these services this method will return null. Generally, if you are running as an instant app you should always check whether the result of this method is null.

Note: When implementing this method, keep in mind that new services can be added on newer Android releases, so if you're looking for just the explicit names mentioned above, make sure to return null when you don't recognize the name — if you throw a RuntimeException exception instead, your app might break on new Android releases.

Parameters

name

String: The name of the desired service. Value is POWER_SERVICE, WINDOW_SERVICE, LAYOUT_INFLATER_SERVICE, ACCOUNT_SERVICE, ACTIVITY_SERVICE, ALARM_SERVICE, NOTIFICATION_SERVICE, ACCESSIBILITY_SERVICE, CAPTIONING_SERVICE, KEYGUARD_SERVICE, LOCATION_SERVICE, HEALTHCONNECT_SERVICE, SEARCH_SERVICE, SENSOR_SERVICE, android.content.Context.SENSOR_PRIVACY_SERVICE, STORAGE_SERVICE, STORAGE_STATS_SERVICE, WALLPAPER_SERVICE, VIBRATOR_MANAGER_SERVICE, VIBRATOR_SERVICE, android.content.Context.THREAD_NETWORK_SERVICE, CONNECTIVITY_SERVICE, android.content.Context.PAC_PROXY_SERVICE, android.content.Context.VCN_MANAGEMENT_SERVICE, IPSEC_SERVICE, VPN_MANAGEMENT_SERVICE, android.content.Context.TEST_NETWORK_SERVICE, NETWORK_STATS_SERVICE, WIFI_SERVICE, WIFI_AWARE_SERVICE, WIFI_P2P_SERVICE, android.content.Context.WIFI_SCANNING_SERVICE, WIFI_RTT_RANGING_SERVICE, NSD_SERVICE, AUDIO_SERVICE, android.content.Context.AUDIO_DEVICE_VOLUME_SERVICE, android.content.Context.AUTH_SERVICE, FINGERPRINT_SERVICE, BIOMETRIC_SERVICE, MEDIA_ROUTER_SERVICE, TELEPHONY_SERVICE, TELEPHONY_SUBSCRIPTION_SERVICE, CARRIER_CONFIG_SERVICE, EUICC_SERVICE, TELECOM_SERVICE, CLIPBOARD_SERVICE, INPUT_METHOD_SERVICE, TEXT_SERVICES_MANAGER_SERVICE, TEXT_CLASSIFICATION_SERVICE, APPWIDGET_SERVICE, android.content.Context.REBOOT_READINESS_SERVICE, android.content.Context.ROLLBACK_SERVICE, DROPBOX_SERVICE, DEVICE_POLICY_SERVICE, UI_MODE_SERVICE, DOWNLOAD_SERVICE, NFC_SERVICE, BLUETOOTH_SERVICE, USB_SERVICE, LAUNCHER_APPS_SERVICE, INPUT_SERVICE, DISPLAY_SERVICE, USER_SERVICE, RESTRICTIONS_SERVICE, APP_OPS_SERVICE, ROLE_SERVICE, CAMERA_SERVICE, PRINT_SERVICE, CONSUMER_IR_SERVICE, TV_INTERACTIVE_APP_SERVICE, TV_INPUT_SERVICE, USAGE_STATS_SERVICE, MEDIA_SESSION_SERVICE, MEDIA_COMMUNICATION_SERVICE, BATTERY_SERVICE, JOB_SCHEDULER_SERVICE, PERSISTENT_DATA_BLOCK_SERVICE, MEDIA_PROJECTION_SERVICE, MIDI_SERVICE, android.content.Context.RADIO_SERVICE, HARDWARE_PROPERTIES_SERVICE, SHORTCUT_SERVICE, SYSTEM_HEALTH_SERVICE, COMPANION_DEVICE_SERVICE, VIRTUAL_DEVICE_SERVICE, CROSS_PROFILE_APPS_SERVICE, android.content.Context.PERMISSION_SERVICE, android.content.Context.LIGHTS_SERVICE, LOCALE_SERVICE, android.content.Context.UWB_SERVICE, MEDIA_METRICS_SERVICE, DISPLAY_HASH_SERVICE, CREDENTIAL_SERVICE, DEVICE_LOCK_SERVICE, android.content.Context.VIRTUALIZATION_SERVICE, GRAMMATICAL_INFLECTION_SERVICE, android.content.Context.SECURITY_STATE_SERVICE, android.content.Context.CONTACT_KEYS_SERVICE, android.content.Context.RANGING_SERVICE, or android.content.Context.ADVANCED_PROTECTION_SERVICE This value cannot be null.

Returns
Object	The service or null if the name does not exist.

See also:

• WINDOW_SERVICE
• WindowManager
• LAYOUT_INFLATER_SERVICE
• LayoutInflater
• ACTIVITY_SERVICE
• ActivityManager
• POWER_SERVICE
• PowerManager
• ALARM_SERVICE
• AlarmManager
• NOTIFICATION_SERVICE
• NotificationManager
• KEYGUARD_SERVICE
• KeyguardManager
• LOCATION_SERVICE
• LocationManager
• SEARCH_SERVICE
• SearchManager
• SENSOR_SERVICE
• SensorManager
• STORAGE_SERVICE
• StorageManager
• VIBRATOR_MANAGER_SERVICE
• VibratorManager
• VIBRATOR_SERVICE
• Vibrator
• CONNECTIVITY_SERVICE
• ConnectivityManager
• WIFI_SERVICE
• WifiManager
• AUDIO_SERVICE
• AudioManager
• MEDIA_ROUTER_SERVICE
• MediaRouter
• TELEPHONY_SERVICE
• TelephonyManager
• TELEPHONY_SUBSCRIPTION_SERVICE
• SubscriptionManager
• CARRIER_CONFIG_SERVICE
• CarrierConfigManager
• EUICC_SERVICE
• EuiccManager
• INPUT_METHOD_SERVICE
• InputMethodManager
• UI_MODE_SERVICE
• UiModeManager
• DOWNLOAD_SERVICE
• DownloadManager
• BATTERY_SERVICE
• BatteryManager
• JOB_SCHEDULER_SERVICE
• JobScheduler
• NETWORK_STATS_SERVICE
• NetworkStatsManager
• HardwarePropertiesManager
• HARDWARE_PROPERTIES_SERVICE
• DOMAIN_VERIFICATION_SERVICE
• DomainVerificationManager
• DISPLAY_HASH_SERVICE
• DisplayHashManager

getSystemServiceName

Added in API level 23

public abstract String getSystemServiceName (Class<?> serviceClass)

Gets the name of the system-level service that is represented by the specified class.

Parameters
serviceClass	Class: The class of the desired service. This value cannot be null.

Returns
String	The service name or null if the class is not a supported system service.

getText

Added in API level 1

public final CharSequence getText (int resId)

Return a localized, styled CharSequence from the application's package's default string table.

Parameters
resId	int: Resource id for the CharSequence text

Returns
CharSequence	This value cannot be null.

getTheme

Added in API level 1

public abstract Resources.Theme getTheme ()

Return the Theme object associated with this Context.

Returns
Resources.Theme

getWallpaper

Added in API level 1
Deprecated in API level 15

public abstract Drawable getWallpaper ()

This method was deprecated in API level 15.
Use WallpaperManager.get() instead.

Returns
Drawable

getWallpaperDesiredMinimumHeight

Added in API level 1
Deprecated in API level 15

public abstract int getWallpaperDesiredMinimumHeight ()

This method was deprecated in API level 15.
Use WallpaperManager.getDesiredMinimumHeight() instead.

Returns
int

getWallpaperDesiredMinimumWidth

Added in API level 1
Deprecated in API level 15

public abstract int getWallpaperDesiredMinimumWidth ()

This method was deprecated in API level 15.
Use WallpaperManager.getDesiredMinimumWidth() instead.

Returns
int

grantUriPermission

Added in API level 1

public abstract void grantUriPermission (String toPackage, 
                Uri uri, 
                int modeFlags)

Grant permission to access a specific Uri to another package, regardless of whether that package has general permission to access the Uri's content provider. This can be used to grant specific, temporary permissions, typically in response to user interaction (such as the user opening an attachment that you would like someone else to display).

Normally you should use Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION with the Intent being used to start an activity instead of this function directly. If you use this function directly, you should be sure to call revokeUriPermission(Uri, int) when the target should no longer be allowed to access it.

To succeed, the content provider owning the Uri must have set the grantUriPermissions attribute in its manifest or included the <grant-uri-permissions> tag.

Parameters
toPackage	String: The package you would like to allow to access the Uri.
uri	Uri: The Uri you would like to grant access to.
modeFlags	int: The desired access modes. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, Intent.FLAG_GRANT_WRITE_URI_PERMISSION, Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION, and Intent.FLAG_GRANT_PREFIX_URI_PERMISSION

See also:

• revokeUriPermission(Uri, int)

isDeviceProtectedStorage

Added in API level 24

public abstract boolean isDeviceProtectedStorage ()

Indicates if the storage APIs of this Context are backed by device-protected storage.

Returns
boolean

See also:

• createDeviceProtectedStorageContext()

isRestricted

Added in API level 4

public boolean isRestricted ()

Indicates whether this Context is restricted.

Returns
boolean	true if this Context is restricted, false otherwise.

See also:

• CONTEXT_RESTRICTED

isUiContext

Added in API level 31

public boolean isUiContext ()

Returns true if the context is a UI context which can access UI components such as WindowManager, LayoutInflater or WallpaperManager. Accessing UI components from non-UI contexts throws Violation if StrictMode.VmPolicy.Builder.detectIncorrectContextUse() is enabled.

Examples of UI contexts are an Activity, a context created from createWindowContext(int, android.os.Bundle) or InputMethodService

Note that even if it is allowed programmatically, it is not suggested to override this method to bypass IncorrectContextUseViolation verification.

Returns
boolean

See also:

• getDisplay()
• getSystemService(String)
• StrictMode.VmPolicy.Builder.detectIncorrectContextUse()

moveDatabaseFrom

Added in API level 24

public abstract boolean moveDatabaseFrom (Context sourceContext, 
                String name)

Move an existing database file from the given source storage context to this context. This is typically used to migrate data between storage locations after an upgrade, such as migrating to device protected storage.

The database must be closed before being moved.

Parameters
sourceContext	Context: The source context which contains the existing database to move.
name	String: The name of the database file.

Returns
boolean	true if the move was successful or if the database didn't exist in the source context, otherwise false.

See also:

• createDeviceProtectedStorageContext()

moveSharedPreferencesFrom

Added in API level 24

public abstract boolean moveSharedPreferencesFrom (Context sourceContext, 
                String name)

Move an existing shared preferences file from the given source storage context to this context. This is typically used to migrate data between storage locations after an upgrade, such as moving to device protected storage.

Parameters
sourceContext	Context: The source context which contains the existing shared preferences to move.
name	String: The name of the shared preferences file.

Returns
boolean	true if the move was successful or if the shared preferences didn't exist in the source context, otherwise false.

See also:

• createDeviceProtectedStorageContext()

obtainStyledAttributes

Added in API level 1

public final TypedArray obtainStyledAttributes (AttributeSet set, 
                int[] attrs)

Retrieve styled attribute information in this Context's theme. See Resources.Theme.obtainStyledAttributes(AttributeSet, int[], int, int) for more information.

Parameters
set	AttributeSet: This value may be null.
attrs	int: This value cannot be null.

Returns
TypedArray	This value cannot be null.

See also:

• Resources.Theme.obtainStyledAttributes(AttributeSet, int[], int, int)

obtainStyledAttributes

Added in API level 1

public final TypedArray obtainStyledAttributes (AttributeSet set, 
                int[] attrs, 
                int defStyleAttr, 
                int defStyleRes)

Retrieve styled attribute information in this Context's theme. See Resources.Theme.obtainStyledAttributes(AttributeSet, int[], int, int) for more information.

Parameters
set	AttributeSet: This value may be null.
attrs	int: This value cannot be null.
defStyleAttr	int
defStyleRes	int

Returns
TypedArray	This value cannot be null.

See also:

• Resources.Theme.obtainStyledAttributes(AttributeSet, int[], int, int)

obtainStyledAttributes

Added in API level 1

public final TypedArray obtainStyledAttributes (int resid, 
                int[] attrs)

Retrieve styled attribute information in this Context's theme. See Resources.Theme.obtainStyledAttributes(int, int[]) for more information.

Parameters
resid	int
attrs	int: This value cannot be null.

Returns
TypedArray	This value cannot be null.

Throws
Resources.NotFoundException

See also:

• Resources.Theme.obtainStyledAttributes(int, int[])

obtainStyledAttributes

Added in API level 1

public final TypedArray obtainStyledAttributes (int[] attrs)

Retrieve styled attribute information in this Context's theme. See Resources.Theme.obtainStyledAttributes(int[]) for more information.

Parameters
attrs	int: This value cannot be null.

Returns
TypedArray	This value cannot be null.

See also:

• Resources.Theme.obtainStyledAttributes(int[])

openFileInput

Added in API level 1

public abstract FileInputStream openFileInput (String name)

Open a private file associated with this Context's application package for reading.

Parameters
name	String: The name of the file to open; can not contain path separators.

Returns
FileInputStream	The resulting FileInputStream.

Throws
FileNotFoundException

See also:

• openFileOutput(String, int)
• fileList()
• deleteFile(String)
• FileInputStream.FileInputStream(String)

openFileOutput

Added in API level 1

public abstract FileOutputStream openFileOutput (String name, 
                int mode)

Open a private file associated with this Context's application package for writing. Creates the file if it doesn't already exist.

No additional permissions are required for the calling app to read or write the returned file.

Parameters
name	String: The name of the file to open; can not contain path separators.
mode	int: Operating mode. Value is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, and MODE_APPEND

Returns
FileOutputStream	The resulting FileOutputStream.

Throws
FileNotFoundException

See also:

• MODE_APPEND
• MODE_PRIVATE
• openFileInput(String)
• fileList()
• deleteFile(String)
• FileOutputStream.FileOutputStream(String)

openOrCreateDatabase

Added in API level 11

public abstract SQLiteDatabase openOrCreateDatabase (String name, 
                int mode, 
                SQLiteDatabase.CursorFactory factory, 
                DatabaseErrorHandler errorHandler)

Open a new private SQLiteDatabase associated with this Context's application package. Creates the database file if it doesn't exist.

Accepts input param: a concrete instance of DatabaseErrorHandler to be used to handle corruption when sqlite reports database corruption.

Parameters
name	String: The name (unique in the application package) of the database.
mode	int: Operating mode. Value is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, MODE_ENABLE_WRITE_AHEAD_LOGGING, and MODE_NO_LOCALIZED_COLLATORS
factory	SQLiteDatabase.CursorFactory: An optional factory class that is called to instantiate a cursor when query is called.
errorHandler	DatabaseErrorHandler: the DatabaseErrorHandler to be used when sqlite reports database corruption. if null, DefaultDatabaseErrorHandler is assumed.

Returns
SQLiteDatabase	The contents of a newly created database with the given name.

Throws
SQLiteException	if the database file could not be opened.

See also:

• MODE_PRIVATE
• MODE_ENABLE_WRITE_AHEAD_LOGGING
• MODE_NO_LOCALIZED_COLLATORS
• deleteDatabase(String)

openOrCreateDatabase

Added in API level 1

public abstract SQLiteDatabase openOrCreateDatabase (String name, 
                int mode, 
                SQLiteDatabase.CursorFactory factory)

Open a new private SQLiteDatabase associated with this Context's application package. Create the database file if it doesn't exist.

Parameters
name	String: The name (unique in the application package) of the database.
mode	int: Operating mode. Value is either 0 or a combination of MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, MODE_ENABLE_WRITE_AHEAD_LOGGING, and MODE_NO_LOCALIZED_COLLATORS
factory	SQLiteDatabase.CursorFactory: An optional factory class that is called to instantiate a cursor when query is called.

Returns
SQLiteDatabase	The contents of a newly created database with the given name.

Throws
SQLiteException	if the database file could not be opened.

See also:

• MODE_PRIVATE
• MODE_ENABLE_WRITE_AHEAD_LOGGING
• MODE_NO_LOCALIZED_COLLATORS
• deleteDatabase(String)

peekWallpaper

Added in API level 1
Deprecated in API level 15

public abstract Drawable peekWallpaper ()

This method was deprecated in API level 15.
Use WallpaperManager.peek() instead.

Returns
Drawable

registerComponentCallbacks

Added in API level 14

public void registerComponentCallbacks (ComponentCallbacks callback)

Add a new ComponentCallbacks to the base application of the Context, which will be called at the same times as the ComponentCallbacks methods of activities and other components are called. Note that you must be sure to use unregisterComponentCallbacks(ComponentCallbacks) when appropriate in the future; this will not be removed for you.

After Build.VERSION_CODES.S, registering the ComponentCallbacks to Context created via createWindowContext(int, android.os.Bundle) or createWindowContext(android.view.Display, int, android.os.Bundle) will receive ComponentCallbacks.onConfigurationChanged(Configuration) from Window Context rather than its base application. It is helpful if you want to handle UI components that associated with the Window Context when the Window Context has configuration changes.

After Build.VERSION_CODES.TIRAMISU, registering the ComponentCallbacks to Activity context will receive ComponentCallbacks.onConfigurationChanged(Configuration) from Activity.onConfigurationChanged(Configuration) rather than its base application.

After Build.VERSION_CODES.UPSIDE_DOWN_CAKE, registering the ComponentCallbacks to InputMethodService will receive ComponentCallbacks.onConfigurationChanged(Configuration) from InputmethodService rather than its base application. It is helpful if you want to handle UI components when the IME has configuration changes.

Parameters
callback	ComponentCallbacks: The interface to call. This can be either a ComponentCallbacks or ComponentCallbacks2 interface.

See also:

• createWindowContext(int, Bundle)

registerDeviceIdChangeListener

Added in API level 34

public void registerDeviceIdChangeListener (Executor executor, 
                IntConsumer listener)

Adds a new device ID changed listener to the Context, which will be called when the device association is changed by the system.

The callback can be called when an app is moved to a different device and the Context is not explicitly associated with a specific device.

When an application receives a device id update callback, this Context is guaranteed to also have an updated display ID(if any) and Configuration.

Parameters
executor	Executor: The Executor on whose thread to execute the callbacks of the listener object. This value cannot be null. Callback and listener events are dispatched through this Executor, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use Context.getMainExecutor(). Otherwise, provide an Executor that dispatches to an appropriate thread.
listener	IntConsumer: The listener IntConsumer to call which will receive the updated device ID. This value cannot be null.

See also:

• getDeviceId()
• createDeviceContext(int)

registerReceiver

Added in API level 1

public abstract Intent registerReceiver (BroadcastReceiver receiver, 
                IntentFilter filter)

Register a BroadcastReceiver to be run in the main activity thread. The receiver will be called with any broadcast Intent that matches filter, in the main application thread.

The system may broadcast Intents that are "sticky" -- these stay around after the broadcast has finished, to be sent to any later registrations. If your IntentFilter matches one of these sticky Intents, that Intent will be returned by this function and sent to your receiver as if it had just been broadcast.

There may be multiple sticky Intents that match filter, in which case each of these will be sent to receiver. In this case, only one of these can be returned directly by the function; which of these that is returned is arbitrarily decided by the system.

If you know the Intent your are registering for is sticky, you can supply null for your receiver. In this case, no receiver is registered -- the function simply returns the sticky Intent that matches filter. In the case of multiple matches, the same rules as described above apply.

See BroadcastReceiver for more information on Intent broadcasts.

As of Build.VERSION_CODES.UPSIDE_DOWN_CAKE, the system can place context-registered broadcasts in a queue while the app is in the cached state. When the app leaves the cached state, such as returning to the foreground, the system delivers any queued broadcasts. Multiple instances of certain broadcasts might be merged into one broadcast.

As of Build.VERSION_CODES.ICE_CREAM_SANDWICH, receivers registered with this method will correctly respect the Intent.setPackage(String) specified for an Intent being broadcast. Prior to that, it would be ignored and delivered to all matching registered receivers. Be careful if using this for security.

For apps targeting Build.VERSION_CODES.UPSIDE_DOWN_CAKE, either RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED must be specified if the receiver is not being registered for system broadcasts or a SecurityException will be thrown. See registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter, int) to register a receiver with flags.

Note: this method cannot be called from a BroadcastReceiver component; that is, from a BroadcastReceiver that is declared in an application's manifest. It is okay, however, to call this method from another BroadcastReceiver that has itself been registered at run time with registerReceiver(BroadcastReceiver, IntentFilter), since the lifetime of such a registered BroadcastReceiver is tied to the object that registered it.

Parameters
receiver	BroadcastReceiver: The BroadcastReceiver to handle the broadcast. This value may be null.
filter	IntentFilter: Selects the Intent broadcasts to be received.

Returns
Intent	The first sticky intent found that matches filter, or null if there are none.

See also:

• registerReceiver(BroadcastReceiver, IntentFilter, String, Handler)
• sendBroadcast(Intent)
• unregisterReceiver(BroadcastReceiver)

registerReceiver

Added in API level 26

public abstract Intent registerReceiver (BroadcastReceiver receiver, 
                IntentFilter filter, 
                int flags)

Register to receive intent broadcasts, with the receiver optionally being exposed to Instant Apps. See registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter) for more information. By default Instant Apps cannot interact with receivers in other applications, this allows you to expose a receiver that Instant Apps can interact with.

See BroadcastReceiver for more information on Intent broadcasts.

As of Build.VERSION_CODES.UPSIDE_DOWN_CAKE, the system can place context-registered broadcasts in a queue while the app is in the cached state. When the app leaves the cached state, such as returning to the foreground, the system delivers any queued broadcasts. Multiple instances of certain broadcasts might be merged into one broadcast.

As of Build.VERSION_CODES.ICE_CREAM_SANDWICH, receivers registered with this method will correctly respect the Intent.setPackage(String) specified for an Intent being broadcast. Prior to that, it would be ignored and delivered to all matching registered receivers. Be careful if using this for security.

Parameters
receiver	BroadcastReceiver: The BroadcastReceiver to handle the broadcast. This value may be null.
filter	IntentFilter: Selects the Intent broadcasts to be received.
flags	int: Additional options for the receiver. For apps targeting Build.VERSION_CODES.UPSIDE_DOWN_CAKE either RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED must be specified if the receiver isn't being registered for system broadcasts or a SecurityException will be thrown. If RECEIVER_EXPORTED is specified, a receiver may additionally specify RECEIVER_VISIBLE_TO_INSTANT_APPS. For a complete list of system broadcast actions, see the BROADCAST_ACTIONS.TXT file in the Android SDK. If both RECEIVER_EXPORTED and RECEIVER_NOT_EXPORTED are specified, an IllegalArgumentException will be thrown. Value is either 0 or a combination of RECEIVER_VISIBLE_TO_INSTANT_APPS, RECEIVER_EXPORTED, RECEIVER_NOT_EXPORTED, and android.content.Context.RECEIVER_EXPORTED_UNAUDITED

Returns
Intent	The first sticky intent found that matches filter, or null if there are none.

See also:

• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• unregisterReceiver(BroadcastReceiver)

registerReceiver

Added in API level 26

public abstract Intent registerReceiver (BroadcastReceiver receiver, 
                IntentFilter filter, 
                String broadcastPermission, 
                Handler scheduler, 
                int flags)

Register to receive intent broadcasts, to run in the context of scheduler. See registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter, int) and registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter, java.lang.String, android.os.Handler) for more information.

See BroadcastReceiver for more information on Intent broadcasts.

As of Build.VERSION_CODES.UPSIDE_DOWN_CAKE, the system can place context-registered broadcasts in a queue while the app is in the cached state. When the app leaves the cached state, such as returning to the foreground, the system delivers any queued broadcasts. Multiple instances of certain broadcasts might be merged into one broadcast.

As of Build.VERSION_CODES.ICE_CREAM_SANDWICH, receivers registered with this method will correctly respect the Intent.setPackage(String) specified for an Intent being broadcast. Prior to that, it would be ignored and delivered to all matching registered receivers. Be careful if using this for security.

Parameters
receiver	BroadcastReceiver: The BroadcastReceiver to handle the broadcast.
filter	IntentFilter: Selects the Intent broadcasts to be received.
broadcastPermission	String: String naming a permissions that a broadcaster must hold in order to send an Intent to you. If null, no permission is required.
scheduler	Handler: Handler identifying the thread that will receive the Intent. If null, the main thread of the process will be used.
flags	int: Additional options for the receiver. For apps targeting Build.VERSION_CODES.UPSIDE_DOWN_CAKE either RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED must be specified if the receiver isn't being registered for system broadcasts or a SecurityException will be thrown. If RECEIVER_EXPORTED is specified, a receiver may additionally specify RECEIVER_VISIBLE_TO_INSTANT_APPS. For a complete list of system broadcast actions, see the BROADCAST_ACTIONS.TXT file in the Android SDK. If both RECEIVER_EXPORTED and RECEIVER_NOT_EXPORTED are specified, an IllegalArgumentException will be thrown. Value is either 0 or a combination of RECEIVER_VISIBLE_TO_INSTANT_APPS, RECEIVER_EXPORTED, RECEIVER_NOT_EXPORTED, and android.content.Context.RECEIVER_EXPORTED_UNAUDITED

Returns
Intent	The first sticky intent found that matches filter, or null if there are none.

See also:

• registerReceiver(BroadcastReceiver, IntentFilter, int)
• registerReceiver(BroadcastReceiver, IntentFilter, String, Handler)
• sendBroadcast(Intent)
• unregisterReceiver(BroadcastReceiver)

registerReceiver

Added in API level 1

public abstract Intent registerReceiver (BroadcastReceiver receiver, 
                IntentFilter filter, 
                String broadcastPermission, 
                Handler scheduler)

Register to receive intent broadcasts, to run in the context of scheduler. See registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter) for more information. This allows you to enforce permissions on who can broadcast intents to your receiver, or have the receiver run in a different thread than the main application thread.

See BroadcastReceiver for more information on Intent broadcasts.

As of Build.VERSION_CODES.UPSIDE_DOWN_CAKE, the system can place context-registered broadcasts in a queue while the app is in the cached state. When the app leaves the cached state, such as returning to the foreground, the system delivers any queued broadcasts. Multiple instances of certain broadcasts might be merged into one broadcast.

As of Build.VERSION_CODES.ICE_CREAM_SANDWICH, receivers registered with this method will correctly respect the Intent.setPackage(String) specified for an Intent being broadcast. Prior to that, it would be ignored and delivered to all matching registered receivers. Be careful if using this for security.

For apps targeting Build.VERSION_CODES.UPSIDE_DOWN_CAKE, either RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED must be specified if the receiver is not being registered for system broadcasts or a SecurityException will be thrown. See registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter, java.lang.String, android.os.Handler, int) to register a receiver with flags.

Parameters
receiver	BroadcastReceiver: The BroadcastReceiver to handle the broadcast.
filter	IntentFilter: Selects the Intent broadcasts to be received.
broadcastPermission	String: String naming a permissions that a broadcaster must hold in order to send an Intent to you. If null, no permission is required.
scheduler	Handler: Handler identifying the thread that will receive the Intent. If null, the main thread of the process will be used.

Returns
Intent	The first sticky intent found that matches filter, or null if there are none.

See also:

• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• unregisterReceiver(BroadcastReceiver)

removeStickyBroadcast

Added in API level 1
Deprecated in API level 21

public abstract void removeStickyBroadcast (Intent intent)

This method was deprecated in API level 21.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Remove the data previously sent with sendStickyBroadcast(Intent), so that it is as if the sticky broadcast had never happened.
Requires Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent that was previously broadcast.

See also:

• sendStickyBroadcast(Intent)

removeStickyBroadcastAsUser

Added in API level 17
Deprecated in API level 21

public abstract void removeStickyBroadcastAsUser (Intent intent, 
                UserHandle user)

This method was deprecated in API level 21.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Version of removeStickyBroadcast(android.content.Intent) that allows you to specify the user the broadcast will be sent to. This is not available to applications that are not pre-installed on the system image.

You must hold the Manifest.permission.BROADCAST_STICKY permission in order to use this API. If you do not hold that permission, SecurityException will be thrown.
Requires android.Manifest.permission.INTERACT_ACROSS_USERS and Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent that was previously broadcast.
user	UserHandle: UserHandle to remove the sticky broadcast from.

See also:

• sendStickyBroadcastAsUser(Intent, UserHandle)

revokeSelfPermissionOnKill

Added in API level 33

public void revokeSelfPermissionOnKill (String permName)

Triggers the asynchronous revocation of a runtime permission. If the permission is not currently granted, nothing happens (even if later granted by the user).

Parameters
permName	String: The name of the permission to be revoked. This value cannot be null.

Throws
IllegalArgumentException	if the permission is not a runtime permission

See also:

• revokeSelfPermissionsOnKill(Collection)

revokeSelfPermissionsOnKill

Added in API level 33

public void revokeSelfPermissionsOnKill (Collection<String> permissions)

Triggers the revocation of one or more permissions for the calling package. A package is only able to revoke runtime permissions. If a permission is not currently granted, it is ignored and will not get revoked (even if later granted by the user). Ultimately, you should never make assumptions about a permission status as users may grant or revoke them at any time.

Background permissions which have no corresponding foreground permission still granted once the revocation is effective will also be revoked.

The revocation happens asynchronously and kills all processes running in the calling UID. It will be triggered once it is safe to do so. In particular, it will not be triggered as long as the package remains in the foreground, or has any active manifest components (e.g. when another app is accessing a content provider in the package).

If you want to revoke the permissions right away, you could call System.exit() in Handler.postDelayed with a delay to allow completion of async IPC, But System.exit() could affect other apps that are accessing your app at the moment. For example, apps accessing a content provider in your app will all crash.

Note that the settings UI shows a permission group as granted as long as at least one permission in the group is granted. If you want the user to observe the revocation in the settings, you should revoke every permission in the target group. To learn the current list of permissions in a group, you may use PackageManager.getGroupOfPlatformPermission(String, Executor, Consumer) and PackageManager.getPlatformPermissionsForGroup(String, Executor, Consumer). This list of permissions may evolve over time, so it is recommended to check whether it contains any permission you wish to retain before trying to revoke an entire group.

Parameters
permissions	Collection: Collection of permissions to be revoked. This value cannot be null.

Throws
IllegalArgumentException	if any of the permissions is not a runtime permission

See also:

• PackageManager.getGroupOfPlatformPermission(String, Executor, Consumer)
• PackageManager.getPlatformPermissionsForGroup(String, Executor, Consumer)

revokeUriPermission

Added in API level 1

public abstract void revokeUriPermission (Uri uri, 
                int modeFlags)

Remove all permissions to access a particular content provider Uri that were previously added with grantUriPermission(String, Uri, int) or any other mechanism. The given Uri will match all previously granted Uris that are the same or a sub-path of the given Uri. That is, revoking "content://foo/target" will revoke both "content://foo/target" and "content://foo/target/sub", but not "content://foo". It will not remove any prefix grants that exist at a higher level.

Prior to Build.VERSION_CODES.LOLLIPOP, if you did not have regular permission access to a Uri, but had received access to it through a specific Uri permission grant, you could not revoke that grant with this function and a SecurityException would be thrown. As of Build.VERSION_CODES.LOLLIPOP, this function will not throw a security exception, but will remove whatever permission grants to the Uri had been given to the app (or none).

Unlike revokeUriPermission(java.lang.String, android.net.Uri, int), this method impacts all permission grants matching the given Uri, for any package they had been granted to, through any mechanism this had happened (such as indirectly through the clipboard, activity launch, service start, etc). That means this can be potentially dangerous to use, as it can revoke grants that another app could be strongly expecting to stick around.

Parameters
uri	Uri: The Uri you would like to revoke access to.
modeFlags	int: The access modes to revoke. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

See also:

• grantUriPermission(String, Uri, int)

revokeUriPermission

Added in API level 26

public abstract void revokeUriPermission (String toPackage, 
                Uri uri, 
                int modeFlags)

Remove permissions to access a particular content provider Uri that were previously added with grantUriPermission(String, Uri, int) for a specific target package. The given Uri will match all previously granted Uris that are the same or a sub-path of the given Uri. That is, revoking "content://foo/target" will revoke both "content://foo/target" and "content://foo/target/sub", but not "content://foo". It will not remove any prefix grants that exist at a higher level.

Unlike revokeUriPermission(android.net.Uri, int), this method will only revoke permissions that had been explicitly granted through grantUriPermission(String, Uri, int) and only for the package specified. Any matching grants that have happened through other mechanisms (clipboard, activity launching, service starting, etc) will not be removed.

Parameters
toPackage	String: The package you had previously granted access to.
uri	Uri: The Uri you would like to revoke access to.
modeFlags	int: The access modes to revoke. Value is either 0 or a combination of Intent.FLAG_GRANT_READ_URI_PERMISSION, and Intent.FLAG_GRANT_WRITE_URI_PERMISSION

See also:

• grantUriPermission(String, Uri, int)

sendBroadcast

Added in API level 34

public void sendBroadcast (Intent intent, 
                String receiverPermission, 
                Bundle options)

Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced. This call is asynchronous; it returns immediately, and you will continue executing while the receivers are run. No results are propagated from receivers and receivers can not abort the broadcast. If you want to allow receivers to propagate results or abort the broadcast, you must send an ordered broadcast using sendOrderedBroadcast(android.content.Intent, java.lang.String).

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast. This value cannot be null.
receiverPermission	String: (optional) String naming a permission that a receiver must hold in order to receive your broadcast. If null, no permission is required.
options	Bundle: (optional) Additional sending options, generated from a BroadcastOptions. This value may be null.

See also:

• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• sendOrderedBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendBroadcast

Added in API level 1

public abstract void sendBroadcast (Intent intent, 
                String receiverPermission)

Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced. This call is asynchronous; it returns immediately, and you will continue executing while the receivers are run. No results are propagated from receivers and receivers can not abort the broadcast. If you want to allow receivers to propagate results or abort the broadcast, you must send an ordered broadcast using sendOrderedBroadcast(android.content.Intent, java.lang.String).

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
receiverPermission	String: (optional) String naming a permission that a receiver must hold in order to receive your broadcast. If null, no permission is required.

See also:

• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• sendOrderedBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendBroadcast

Added in API level 1

public abstract void sendBroadcast (Intent intent)

Broadcast the given intent to all interested BroadcastReceivers. This call is asynchronous; it returns immediately, and you will continue executing while the receivers are run. No results are propagated from receivers and receivers can not abort the broadcast. If you want to allow receivers to propagate results or abort the broadcast, you must send an ordered broadcast using sendOrderedBroadcast(android.content.Intent, java.lang.String).

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.

See also:

• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendBroadcastAsUser

Added in API level 17

public abstract void sendBroadcastAsUser (Intent intent, 
                UserHandle user)

Version of sendBroadcast(android.content.Intent) that allows you to specify the user the broadcast will be sent to. This is not available to applications that are not pre-installed on the system image.
Requires android.Manifest.permission.INTERACT_ACROSS_USERS

Parameters
intent	Intent: The intent to broadcast
user	UserHandle: UserHandle to send the intent to.

See also:

• sendBroadcast(Intent)

sendBroadcastAsUser

Added in API level 17

public abstract void sendBroadcastAsUser (Intent intent, 
                UserHandle user, 
                String receiverPermission)

Version of sendBroadcast(android.content.Intent, java.lang.String) that allows you to specify the user the broadcast will be sent to. This is not available to applications that are not pre-installed on the system image.
Requires android.Manifest.permission.INTERACT_ACROSS_USERS

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
user	UserHandle: UserHandle to send the intent to.
receiverPermission	String: (optional) String naming a permission that a receiver must hold in order to receive your broadcast. If null, no permission is required.

See also:

• sendBroadcast(Intent, String)

sendBroadcastWithMultiplePermissions

Added in API level 30

public void sendBroadcastWithMultiplePermissions (Intent intent, 
                String[] receiverPermissions)

Broadcast the given intent to all interested BroadcastReceivers, allowing an array of required permissions to be enforced. This call is asynchronous; it returns immediately, and you will continue executing while the receivers are run. No results are propagated from receivers and receivers can not abort the broadcast. If you want to allow receivers to propagate results or abort the broadcast, you must send an ordered broadcast using sendOrderedBroadcast(android.content.Intent, java.lang.String).

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast. This value cannot be null.
receiverPermissions	String: Array of names of permissions that a receiver must hold in order to receive your broadcast. If empty, no permissions are required. This value cannot be null.

See also:

• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• sendOrderedBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendOrderedBroadcast

Added in API level 30

public void sendOrderedBroadcast (Intent intent, 
                String receiverPermission, 
                String receiverAppOp, 
                BroadcastReceiver resultReceiver, 
                Handler scheduler, 
                int initialCode, 
                String initialData, 
                Bundle initialExtras)

Version of sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle) that allows you to specify the App Op to enforce restrictions on which receivers the broadcast will be sent to.

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast. This value cannot be null.
receiverPermission	String: String naming a permissions that a receiver must hold in order to receive your broadcast. If null, no permission is required.
receiverAppOp	String: The app op associated with the broadcast. If null, no appOp is required. If both receiverAppOp and receiverPermission are non-null, a receiver must have both of them to receive the broadcast
resultReceiver	BroadcastReceiver: Your own BroadcastReceiver to treat as the final receiver of the broadcast. This value may be null.
scheduler	Handler: A custom Handler with which to schedule the resultReceiver callback; if null it will be scheduled in the Context's main thread.
initialCode	int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String: An initial value for the result data. Often null.
initialExtras	Bundle: An initial value for the result extras. Often null.

See also:

• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendOrderedBroadcast

Added in API level 1

public abstract void sendOrderedBroadcast (Intent intent, 
                String receiverPermission, 
                BroadcastReceiver resultReceiver, 
                Handler scheduler, 
                int initialCode, 
                String initialData, 
                Bundle initialExtras)

Version of sendBroadcast(android.content.Intent) that allows you to receive data back from the broadcast. This is accomplished by supplying your own BroadcastReceiver when calling, which will be treated as a final receiver at the end of the broadcast -- its BroadcastReceiver.onReceive method will be called with the result values collected from the other receivers. The broadcast will be serialized in the same way as calling sendOrderedBroadcast(android.content.Intent, java.lang.String).

Like sendBroadcast(android.content.Intent), this method is asynchronous; it will return before resultReceiver.onReceive() is called.

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast. This value cannot be null.
receiverPermission	String: String naming a permissions that a receiver must hold in order to receive your broadcast. If null, no permission is required.
resultReceiver	BroadcastReceiver: Your own BroadcastReceiver to treat as the final receiver of the broadcast. This value may be null.
scheduler	Handler: A custom Handler with which to schedule the resultReceiver callback; if null it will be scheduled in the Context's main thread.
initialCode	int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String: An initial value for the result data. Often null.
initialExtras	Bundle: An initial value for the result extras. Often null.

See also:

• sendBroadcast(Intent)
• sendBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String)
• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• Activity.RESULT_OK

sendOrderedBroadcast

Added in API level 34

public void sendOrderedBroadcast (Intent intent, 
                String receiverPermission, 
                Bundle options)

Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers. This call is asynchronous; it returns immediately, and you will continue executing while the receivers are run.

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast. This value cannot be null.
receiverPermission	String: (optional) String naming a permissions that a receiver must hold in order to receive your broadcast. If null, no permission is required.
options	Bundle: (optional) Additional sending options, generated from a BroadcastOptions. This value may be null.

See also:

• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendOrderedBroadcast

Added in API level 34

public void sendOrderedBroadcast (Intent intent, 
                String receiverPermission, 
                Bundle options, 
                BroadcastReceiver resultReceiver, 
                Handler scheduler, 
                int initialCode, 
                String initialData, 
                Bundle initialExtras)

Version of sendBroadcast(android.content.Intent) that allows you to receive data back from the broadcast. This is accomplished by supplying your own BroadcastReceiver when calling, which will be treated as a final receiver at the end of the broadcast -- its BroadcastReceiver.onReceive method will be called with the result values collected from the other receivers. The broadcast will be serialized in the same way as calling sendOrderedBroadcast(android.content.Intent, java.lang.String).

Like sendBroadcast(android.content.Intent), this method is asynchronous; it will return before resultReceiver.onReceive() is called.

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast. This value cannot be null.
receiverPermission	String: String naming a permissions that a receiver must hold in order to receive your broadcast. If null, no permission is required.
options	Bundle: (optional) Additional sending options, generated from a BroadcastOptions. This value may be null.
resultReceiver	BroadcastReceiver: Your own BroadcastReceiver to treat as the final receiver of the broadcast. This value may be null.
scheduler	Handler: A custom Handler with which to schedule the resultReceiver callback; if null it will be scheduled in the Context's main thread.
initialCode	int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String: An initial value for the result data. Often null.
initialExtras	Bundle: An initial value for the result extras. Often null.

See also:

• sendBroadcast(Intent)
• sendBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String)
• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• Activity.RESULT_OK

sendOrderedBroadcast

Added in API level 1

public abstract void sendOrderedBroadcast (Intent intent, 
                String receiverPermission)

Broadcast the given intent to all interested BroadcastReceivers, delivering them one at a time to allow more preferred receivers to consume the broadcast before it is delivered to less preferred receivers. This call is asynchronous; it returns immediately, and you will continue executing while the receivers are run.

See BroadcastReceiver for more information on Intent broadcasts.

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
receiverPermission	String: (optional) String naming a permissions that a receiver must hold in order to receive your broadcast. If null, no permission is required.

See also:

• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• sendBroadcast(Intent)
• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendOrderedBroadcastAsUser

Added in API level 17

public abstract void sendOrderedBroadcastAsUser (Intent intent, 
                UserHandle user, 
                String receiverPermission, 
                BroadcastReceiver resultReceiver, 
                Handler scheduler, 
                int initialCode, 
                String initialData, 
                Bundle initialExtras)

Version of sendOrderedBroadcast(android.content.Intent, java.lang.String, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle) that allows you to specify the user the broadcast will be sent to. This is not available to applications that are not pre-installed on the system image.

See BroadcastReceiver for more information on Intent broadcasts.
Requires android.Manifest.permission.INTERACT_ACROSS_USERS

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
user	UserHandle: UserHandle to send the intent to.
receiverPermission	String: String naming a permissions that a receiver must hold in order to receive your broadcast. If null, no permission is required.
resultReceiver	BroadcastReceiver: Your own BroadcastReceiver to treat as the final receiver of the broadcast.
scheduler	Handler: A custom Handler with which to schedule the resultReceiver callback; if null it will be scheduled in the Context's main thread.
initialCode	int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String: An initial value for the result data. Often null.
initialExtras	Bundle: An initial value for the result extras. Often null.

See also:

• sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)

sendStickyBroadcast

Added in API level 1
Deprecated in API level 21

public abstract void sendStickyBroadcast (Intent intent)

This method was deprecated in API level 21.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Perform a sendBroadcast(android.content.Intent) that is "sticky," meaning the Intent you are sending stays around after the broadcast is complete, so that others can quickly retrieve that data through the return value of registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter). In all other ways, this behaves the same as sendBroadcast(android.content.Intent).
Requires Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast, and the Intent will be held to be re-broadcast to future receivers.

See also:

• sendBroadcast(Intent)
• sendStickyOrderedBroadcast(Intent, BroadcastReceiver, Handler, int, String, Bundle)

sendStickyBroadcast

Added in API level 31
Deprecated in API level 31

public void sendStickyBroadcast (Intent intent, 
                Bundle options)

This method was deprecated in API level 31.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Perform a sendBroadcast(android.content.Intent) that is "sticky," meaning the Intent you are sending stays around after the broadcast is complete, so that others can quickly retrieve that data through the return value of registerReceiver(android.content.BroadcastReceiver, android.content.IntentFilter). In all other ways, this behaves the same as sendBroadcast(android.content.Intent).
Requires Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast, and the Intent will be held to be re-broadcast to future receivers. This value cannot be null.
options	Bundle: (optional) Additional sending options, generated from a BroadcastOptions. This value may be null.

See also:

• sendBroadcast(Intent)
• sendStickyOrderedBroadcast(Intent, BroadcastReceiver, Handler, int, String, Bundle)

sendStickyBroadcastAsUser

Added in API level 17
Deprecated in API level 21

public abstract void sendStickyBroadcastAsUser (Intent intent, 
                UserHandle user)

This method was deprecated in API level 21.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Version of sendStickyBroadcast(android.content.Intent) that allows you to specify the user the broadcast will be sent to. This is not available to applications that are not pre-installed on the system image.
Requires android.Manifest.permission.INTERACT_ACROSS_USERS and Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast, and the Intent will be held to be re-broadcast to future receivers.
user	UserHandle: UserHandle to send the intent to.

See also:

• sendBroadcast(Intent)

sendStickyOrderedBroadcast

Added in API level 5
Deprecated in API level 21

public abstract void sendStickyOrderedBroadcast (Intent intent, 
                BroadcastReceiver resultReceiver, 
                Handler scheduler, 
                int initialCode, 
                String initialData, 
                Bundle initialExtras)

This method was deprecated in API level 21.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Version of sendStickyBroadcast(Intent) that allows you to receive data back from the broadcast. This is accomplished by supplying your own BroadcastReceiver when calling, which will be treated as a final receiver at the end of the broadcast -- its BroadcastReceiver.onReceive method will be called with the result values collected from the other receivers. The broadcast will be serialized in the same way as calling sendOrderedBroadcast(android.content.Intent, java.lang.String).

Like sendBroadcast(android.content.Intent), this method is asynchronous; it will return before resultReceiver.onReceive() is called. Note that the sticky data stored is only the data you initially supply to the broadcast, not the result of any changes made by the receivers.

See BroadcastReceiver for more information on Intent broadcasts.
Requires Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
resultReceiver	BroadcastReceiver: Your own BroadcastReceiver to treat as the final receiver of the broadcast.
scheduler	Handler: A custom Handler with which to schedule the resultReceiver callback; if null it will be scheduled in the Context's main thread.
initialCode	int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String: An initial value for the result data. Often null.
initialExtras	Bundle: An initial value for the result extras. Often null.

See also:

• sendBroadcast(Intent)
• sendBroadcast(Intent, String)
• sendOrderedBroadcast(Intent, String)
• sendStickyBroadcast(Intent)
• BroadcastReceiver
• registerReceiver(BroadcastReceiver, IntentFilter)
• Activity.RESULT_OK

sendStickyOrderedBroadcastAsUser

Added in API level 17
Deprecated in API level 21

public abstract void sendStickyOrderedBroadcastAsUser (Intent intent, 
                UserHandle user, 
                BroadcastReceiver resultReceiver, 
                Handler scheduler, 
                int initialCode, 
                String initialData, 
                Bundle initialExtras)

This method was deprecated in API level 21.
Sticky broadcasts should not be used. They provide no security (anyone can access them), no protection (anyone can modify them), and many other problems. The recommended pattern is to use a non-sticky broadcast to report that something has changed, with another mechanism for apps to retrieve the current value whenever desired.

Version of sendStickyOrderedBroadcast(android.content.Intent, android.content.BroadcastReceiver, android.os.Handler, int, java.lang.String, android.os.Bundle) that allows you to specify the user the broadcast will be sent to. This is not available to applications that are not pre-installed on the system image.

See BroadcastReceiver for more information on Intent broadcasts.
Requires android.Manifest.permission.INTERACT_ACROSS_USERS and Manifest.permission.BROADCAST_STICKY

Parameters
intent	Intent: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
user	UserHandle: UserHandle to send the intent to.
resultReceiver	BroadcastReceiver: Your own BroadcastReceiver to treat as the final receiver of the broadcast.
scheduler	Handler: A custom Handler with which to schedule the resultReceiver callback; if null it will be scheduled in the Context's main thread.
initialCode	int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String: An initial value for the result data. Often null.
initialExtras	Bundle: An initial value for the result extras. Often null.

See also:

• sendStickyOrderedBroadcast(Intent, BroadcastReceiver, Handler, int, String, Bundle)

setTheme

Added in API level 1

public abstract void setTheme (int resid)

Set the base theme for this context. Note that this should be called before any views are instantiated in the Context (for example before calling Activity.setContentView(View) or LayoutInflater.inflate(int, ViewGroup)).

Parameters
resid	int: The style resource describing the theme.

setWallpaper

Added in API level 1
Deprecated in API level 15

public abstract void setWallpaper (Bitmap bitmap)

This method was deprecated in API level 15.
Use WallpaperManager.set() instead.

This method requires the caller to hold the permission Manifest.permission.SET_WALLPAPER.

Parameters
bitmap	Bitmap

Throws
IOException

setWallpaper

Added in API level 1
Deprecated in API level 15

public abstract void setWallpaper (InputStream data)

This method was deprecated in API level 15.
Use WallpaperManager.set() instead.

This method requires the caller to hold the permission Manifest.permission.SET_WALLPAPER.

Parameters
data	InputStream

Throws
IOException

startActivities

Added in API level 16

public abstract void startActivities (Intent[] intents, 
                Bundle options)

Launch multiple new activities. This is generally the same as calling startActivity(android.content.Intent) for the first Intent in the array, that activity during its creation calling startActivity(android.content.Intent) for the second entry, etc. Note that unlike that approach, generally none of the activities except the last in the array will be created at this point, but rather will be created when the user first visits them (due to pressing back from the activity on top).

This method throws ActivityNotFoundException if there was no Activity found for any given Intent. In this case the state of the activity stack is undefined (some Intents in the list may be on it, some not), so you probably want to avoid such situations.

Parameters
intents	Intent: An array of Intents to be started.
options	Bundle: Additional options for how the Activity should be started. See startActivity(Intent, Bundle) Context.startActivity(Intent, Bundle)} for more details.

Throws
ActivityNotFoundException

See also:

• startActivities(Intent[])
• PackageManager.resolveActivity(Intent, ResolveInfoFlags)

startActivities

Added in API level 11

public abstract void startActivities (Intent[] intents)

Same as startActivities(android.content.Intent[], android.os.Bundle) with no options specified.

Parameters
intents	Intent: An array of Intents to be started.

Throws
ActivityNotFoundException

See also:

• startActivities(Intent[], Bundle)
• PackageManager.resolveActivity(Intent, ResolveInfoFlags)

startActivity

Added in API level 1

public abstract void startActivity (Intent intent)

Same as startActivity(android.content.Intent, android.os.Bundle) with no options specified.

Parameters
intent	Intent: The description of the activity to start.

Throws
ActivityNotFoundException	`

See also:

• startActivity(Intent, Bundle)
• PackageManager.resolveActivity(Intent, ResolveInfoFlags)

startActivity

Added in API level 16

public abstract void startActivity (Intent intent, 
                Bundle options)

Launch a new activity. You will not receive any information about when the activity exits.

Note that if this method is being called from outside of an Activity Context, then the Intent must include the Intent.FLAG_ACTIVITY_NEW_TASK launch flag. This is because, without being started from an existing Activity, there is no existing task in which to place the new activity and thus it needs to be placed in its own separate task.

This method throws ActivityNotFoundException if there was no Activity found to run the given Intent.

Parameters
intent	Intent: The description of the activity to start.
options	Bundle: Additional options for how the Activity should be started. May be null if there are no options. See ActivityOptions for how to build the Bundle supplied here; there are no supported definitions for building it manually.

Throws
ActivityNotFoundException

See also:

• startActivity(Intent)
• PackageManager.resolveActivity(Intent, ResolveInfoFlags)

startForegroundService

Added in API level 26

public abstract ComponentName startForegroundService (Intent service)

Similar to startService(android.content.Intent), but with an implicit promise that the Service will call startForeground(int, android.app.Notification) once it begins running. The service is given an amount of time comparable to the ANR interval to do this, otherwise the system will automatically crash the process, in which case an internal exception ForegroundServiceDidNotStartInTimeException is logged on logcat on devices running SDK Version Build.VERSION_CODES.S or later. On older Android versions, an internal exception RemoteServiceException is logged instead, with a corresponding message.

Unlike the ordinary startService(android.content.Intent), this method can be used at any time, regardless of whether the app hosting the service is in a foreground state.

Note: Beginning with SDK Version Build.VERSION_CODES.S, apps targeting SDK Version Build.VERSION_CODES.S or higher are not allowed to start foreground services from the background. See Behavior changes: Apps targeting Android 12 for more details.

Parameters
service	Intent: Identifies the service to be started. The Intent must be fully explicit (supplying a component name). Additional values may be included in the Intent extras to supply arguments along with this specific start call.

Returns
ComponentName	If the service is being started or is already running, the ComponentName of the actual service that was started is returned; else if the service does not exist null is returned.

Throws
SecurityException	If the caller does not have permission to access the service or the service can not be found.
ForegroundServiceStartNotAllowedException	If the caller app's targeting API is Build.VERSION_CODES.S or later, and the foreground service is restricted from start due to background restriction.

See also:

• stopService(Intent)
• Service.startForeground(int, android.app.Notification)

startInstrumentation

Added in API level 1

public abstract boolean startInstrumentation (ComponentName className, 
                String profileFile, 
                Bundle arguments)

Start executing an Instrumentation class. The given Instrumentation component will be run by killing its target application (if currently running), starting the target process, instantiating the instrumentation component, and then letting it drive the application.

This function is not synchronous -- it returns as soon as the instrumentation has started and while it is running.

Instrumentation is normally only allowed to run against a package that is either unsigned or signed with a signature that the the instrumentation package is also signed with (ensuring the target trusts the instrumentation).

Parameters
className	ComponentName: Name of the Instrumentation component to be run. This value cannot be null.
profileFile	String: Optional path to write profiling data as the instrumentation runs, or null for no profiling.
arguments	Bundle: Additional optional arguments to pass to the instrumentation, or null.

Returns
boolean	true if the instrumentation was successfully started, else false if it could not be found.

startIntentSender

Added in API level 5

public abstract void startIntentSender (IntentSender intent, 
                Intent fillInIntent, 
                int flagsMask, 
                int flagsValues, 
                int extraFlags)

Same as startIntentSender(android.content.IntentSender, android.content.Intent, int, int, int, android.os.Bundle) with no options specified.

Parameters
intent	IntentSender: The IntentSender to launch.
fillInIntent	Intent: If non-null, this will be provided as the intent parameter to IntentSender.sendIntent.
flagsMask	int: Intent flags in the original IntentSender that you would like to change. Value is either 0 or a combination of Intent.FLAG_FROM_BACKGROUND, Intent.FLAG_DEBUG_LOG_RESOLUTION, Intent.FLAG_EXCLUDE_STOPPED_PACKAGES, Intent.FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, Intent.FLAG_ACTIVITY_MATCH_EXTERNAL, Intent.FLAG_ACTIVITY_NO_HISTORY, Intent.FLAG_ACTIVITY_SINGLE_TOP, Intent.FLAG_ACTIVITY_NEW_TASK, Intent.FLAG_ACTIVITY_MULTIPLE_TASK, Intent.FLAG_ACTIVITY_CLEAR_TOP, Intent.FLAG_ACTIVITY_FORWARD_RESULT, Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP, Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT, Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NEW_DOCUMENT, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NO_USER_ACTION, Intent.FLAG_ACTIVITY_REORDER_TO_FRONT, Intent.FLAG_ACTIVITY_NO_ANIMATION, Intent.FLAG_ACTIVITY_CLEAR_TASK, Intent.FLAG_ACTIVITY_TASK_ON_HOME, Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS, Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT, Intent.FLAG_RECEIVER_REGISTERED_ONLY, Intent.FLAG_RECEIVER_REPLACE_PENDING, Intent.FLAG_RECEIVER_FOREGROUND, Intent.FLAG_RECEIVER_NO_ABORT, android.content.Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT, android.content.Intent.FLAG_RECEIVER_BOOT_UPGRADE, android.content.Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_FROM_SHELL, Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS, android.content.Intent.FLAG_RECEIVER_OFFLOAD, and android.content.Intent.FLAG_RECEIVER_OFFLOAD_FOREGROUND
flagsValues	int: Desired values for any bits set in flagsMask Value is either 0 or a combination of Intent.FLAG_FROM_BACKGROUND, Intent.FLAG_DEBUG_LOG_RESOLUTION, Intent.FLAG_EXCLUDE_STOPPED_PACKAGES, Intent.FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, Intent.FLAG_ACTIVITY_MATCH_EXTERNAL, Intent.FLAG_ACTIVITY_NO_HISTORY, Intent.FLAG_ACTIVITY_SINGLE_TOP, Intent.FLAG_ACTIVITY_NEW_TASK, Intent.FLAG_ACTIVITY_MULTIPLE_TASK, Intent.FLAG_ACTIVITY_CLEAR_TOP, Intent.FLAG_ACTIVITY_FORWARD_RESULT, Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP, Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT, Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NEW_DOCUMENT, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NO_USER_ACTION, Intent.FLAG_ACTIVITY_REORDER_TO_FRONT, Intent.FLAG_ACTIVITY_NO_ANIMATION, Intent.FLAG_ACTIVITY_CLEAR_TASK, Intent.FLAG_ACTIVITY_TASK_ON_HOME, Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS, Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT, Intent.FLAG_RECEIVER_REGISTERED_ONLY, Intent.FLAG_RECEIVER_REPLACE_PENDING, Intent.FLAG_RECEIVER_FOREGROUND, Intent.FLAG_RECEIVER_NO_ABORT, android.content.Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT, android.content.Intent.FLAG_RECEIVER_BOOT_UPGRADE, android.content.Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_FROM_SHELL, Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS, android.content.Intent.FLAG_RECEIVER_OFFLOAD, and android.content.Intent.FLAG_RECEIVER_OFFLOAD_FOREGROUND
extraFlags	int: Always set to 0.

Throws
IntentSender.SendIntentException

See also:

• startActivity(Intent)
• startIntentSender(IntentSender, Intent, int, int, int, Bundle)

startIntentSender

Added in API level 16

public abstract void startIntentSender (IntentSender intent, 
                Intent fillInIntent, 
                int flagsMask, 
                int flagsValues, 
                int extraFlags, 
                Bundle options)

Like startActivity(android.content.Intent, android.os.Bundle), but taking a IntentSender to start. If the IntentSender is for an activity, that activity will be started as if you had called the regular startActivity(android.content.Intent) here; otherwise, its associated action will be executed (such as sending a broadcast) as if you had called IntentSender.sendIntent on it.

Parameters
intent	IntentSender: The IntentSender to launch.
fillInIntent	Intent: If non-null, this will be provided as the intent parameter to IntentSender.sendIntent.
flagsMask	int: Intent flags in the original IntentSender that you would like to change. Value is either 0 or a combination of Intent.FLAG_FROM_BACKGROUND, Intent.FLAG_DEBUG_LOG_RESOLUTION, Intent.FLAG_EXCLUDE_STOPPED_PACKAGES, Intent.FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, Intent.FLAG_ACTIVITY_MATCH_EXTERNAL, Intent.FLAG_ACTIVITY_NO_HISTORY, Intent.FLAG_ACTIVITY_SINGLE_TOP, Intent.FLAG_ACTIVITY_NEW_TASK, Intent.FLAG_ACTIVITY_MULTIPLE_TASK, Intent.FLAG_ACTIVITY_CLEAR_TOP, Intent.FLAG_ACTIVITY_FORWARD_RESULT, Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP, Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT, Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NEW_DOCUMENT, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NO_USER_ACTION, Intent.FLAG_ACTIVITY_REORDER_TO_FRONT, Intent.FLAG_ACTIVITY_NO_ANIMATION, Intent.FLAG_ACTIVITY_CLEAR_TASK, Intent.FLAG_ACTIVITY_TASK_ON_HOME, Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS, Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT, Intent.FLAG_RECEIVER_REGISTERED_ONLY, Intent.FLAG_RECEIVER_REPLACE_PENDING, Intent.FLAG_RECEIVER_FOREGROUND, Intent.FLAG_RECEIVER_NO_ABORT, android.content.Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT, android.content.Intent.FLAG_RECEIVER_BOOT_UPGRADE, android.content.Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_FROM_SHELL, Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS, android.content.Intent.FLAG_RECEIVER_OFFLOAD, and android.content.Intent.FLAG_RECEIVER_OFFLOAD_FOREGROUND
flagsValues	int: Desired values for any bits set in flagsMask Value is either 0 or a combination of Intent.FLAG_FROM_BACKGROUND, Intent.FLAG_DEBUG_LOG_RESOLUTION, Intent.FLAG_EXCLUDE_STOPPED_PACKAGES, Intent.FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, Intent.FLAG_ACTIVITY_MATCH_EXTERNAL, Intent.FLAG_ACTIVITY_NO_HISTORY, Intent.FLAG_ACTIVITY_SINGLE_TOP, Intent.FLAG_ACTIVITY_NEW_TASK, Intent.FLAG_ACTIVITY_MULTIPLE_TASK, Intent.FLAG_ACTIVITY_CLEAR_TOP, Intent.FLAG_ACTIVITY_FORWARD_RESULT, Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP, Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT, Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NEW_DOCUMENT, Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, Intent.FLAG_ACTIVITY_NO_USER_ACTION, Intent.FLAG_ACTIVITY_REORDER_TO_FRONT, Intent.FLAG_ACTIVITY_NO_ANIMATION, Intent.FLAG_ACTIVITY_CLEAR_TASK, Intent.FLAG_ACTIVITY_TASK_ON_HOME, Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS, Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT, Intent.FLAG_RECEIVER_REGISTERED_ONLY, Intent.FLAG_RECEIVER_REPLACE_PENDING, Intent.FLAG_RECEIVER_FOREGROUND, Intent.FLAG_RECEIVER_NO_ABORT, android.content.Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT, android.content.Intent.FLAG_RECEIVER_BOOT_UPGRADE, android.content.Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND, android.content.Intent.FLAG_RECEIVER_FROM_SHELL, Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS, android.content.Intent.FLAG_RECEIVER_OFFLOAD, and android.content.Intent.FLAG_RECEIVER_OFFLOAD_FOREGROUND
extraFlags	int: Always set to 0.
options	Bundle: Additional options for how the Activity should be started. See startActivity(Intent, Bundle) Context.startActivity(Intent, Bundle)} for more details. If options have also been supplied by the IntentSender, options given here will override any that conflict with those given by the IntentSender. This value may be null.

Throws
IntentSender.SendIntentException

See also:

• startActivity(Intent, Bundle)
• startIntentSender(IntentSender, Intent, int, int, int)

startService

Added in API level 1

public abstract ComponentName startService (Intent service)

Request that a given application service be started. The Intent should either contain the complete class name of a specific service implementation to start, or a specific package name to target. If the Intent is less specified, it logs a warning about this. In this case any of the multiple matching services may be used. If this service is not already running, it will be instantiated and started (creating a process for it if needed); if it is running then it remains running.

Every call to this method will result in a corresponding call to the target service's Service.onStartCommand(Intent, int, int) method, with the intent given here. This provides a convenient way to submit jobs to a service without having to bind and call on to its interface.

Using startService() overrides the default service lifetime that is managed by bindService(Intent, BindServiceFlags, Executor, ServiceConnection): it requires the service to remain running until stopService(Intent) is called, regardless of whether any clients are connected to it. Note that calls to startService() do not nest: no matter how many times you call startService(), a single call to stopService(Intent) will stop it.

The system attempts to keep running services around as much as possible. The only time they should be stopped is if the current foreground application is using so many resources that the service needs to be killed. If any errors happen in the service's process, it will automatically be restarted.

This function will throw SecurityException if you do not have permission to start the given service.

Note: Each call to startService() results in significant work done by the system to manage service lifecycle surrounding the processing of the intent, which can take multiple milliseconds of CPU time. Due to this cost, startService() should not be used for frequent intent delivery to a service, and only for scheduling significant work. Use bound services for high frequency calls.

Beginning with SDK Version Build.VERSION_CODES.O, apps targeting SDK Version Build.VERSION_CODES.O or higher are not allowed to start background services from the background. See Background Execution Limits for more details.

Note: Beginning with SDK Version Build.VERSION_CODES.S, apps targeting SDK Version Build.VERSION_CODES.S or higher are not allowed to start foreground services from the background. See Behavior changes: Apps targeting Android 12 for more details.

Parameters
service	Intent: Identifies the service to be started. The Intent must be fully explicit (supplying a component name). Additional values may be included in the Intent extras to supply arguments along with this specific start call.

Returns
ComponentName	If the service is being started or is already running, the ComponentName of the actual service that was started is returned; else if the service does not exist null is returned.

Throws
SecurityException	If the caller does not have permission to access the service or the service can not be found.
IllegalStateException	Before Android Build.VERSION_CODES.S, if the application is in a state where the service can not be started (such as not in the foreground in a state when services are allowed), IllegalStateException was thrown.
BackgroundServiceStartNotAllowedException	On Android Build.VERSION_CODES.S and later, if the application is in a state where the service can not be started (such as not in the foreground in a state when services are allowed), BackgroundServiceStartNotAllowedException is thrown. This exception extends IllegalStateException, so apps can use catch (IllegalStateException) to catch both.

See also:

• startForegroundService(Intent)
• stopService(Intent)
• bindService(Intent, BindServiceFlags, Executor, ServiceConnection)

stopService

Added in API level 1

public abstract boolean stopService (Intent service)

Request that a given application service be stopped. If the service is not running, nothing happens. Otherwise it is stopped. Note that calls to startService() are not counted -- this stops the service no matter how many times it was started.

If the service is running as a foreground service when it is stopped, its associated notification will be removed. To avoid this, apps can use stopForeground(STOP_FOREGROUND_DETACH) to decouple the notification from the service's lifecycle before stopping it.

Note that if a stopped service still has ServiceConnection objects bound to it with the BIND_AUTO_CREATE set, it will not be destroyed until all of these bindings are removed. See the Service documentation for more details on a service's lifecycle.

This function will throw SecurityException if you do not have permission to stop the given service.

Parameters
service	Intent: Description of the service to be stopped. The Intent must be either fully explicit (supplying a component name) or specify a specific package name it is targeted to.

Returns
boolean	If there is a service matching the given Intent that is already running, then it is stopped and true is returned; else false is returned.

Throws
SecurityException	If the caller does not have permission to access the service or the service can not be found.
IllegalStateException	If the application is in a state where the service can not be started (such as not in the foreground in a state when services are allowed).

See also:

• startService(Intent)

unbindService

Added in API level 1

public abstract void unbindService (ServiceConnection conn)

Disconnect from an application service. You will no longer receive calls as the service is restarted, and the service is now allowed to stop at any time.

Parameters
conn	ServiceConnection: The connection interface previously supplied to bindService(). This parameter must not be null.

See also:

• bindService(Intent, BindServiceFlags, Executor, ServiceConnection)

unregisterComponentCallbacks

Added in API level 14

public void unregisterComponentCallbacks (ComponentCallbacks callback)

Remove a ComponentCallbacks object that was previously registered with registerComponentCallbacks(android.content.ComponentCallbacks).

Parameters
callback	ComponentCallbacks

unregisterDeviceIdChangeListener

Added in API level 34

public void unregisterDeviceIdChangeListener (IntConsumer listener)

Removes a device ID changed listener from the Context. It's a no-op if the listener is not already registered.

Parameters
listener	IntConsumer: The Consumer to remove. This value cannot be null.

See also:

• getDeviceId()
• registerDeviceIdChangeListener(Executor, IntConsumer)

unregisterReceiver

Added in API level 1

public abstract void unregisterReceiver (BroadcastReceiver receiver)

Unregister a previously registered BroadcastReceiver. All filters that have been registered for this BroadcastReceiver will be removed.

Parameters
receiver	BroadcastReceiver: The BroadcastReceiver to unregister.

Throws
IllegalArgumentException	if the receiver was not previously registered or already unregistered.

See also:

• registerReceiver(BroadcastReceiver, IntentFilter)

updateServiceGroup

Added in API level 29

public void updateServiceGroup (ServiceConnection conn, 
                int group, 
                int importance)

For a service previously bound with bindService(Intent, BindServiceFlags, Executor, ServiceConnection) or a related method, change how the system manages that service's process in relation to other processes. This doesn't modify the original bind flags that were passed in when binding, but adjusts how the process will be managed in some cases based on those flags. Currently only works on isolated processes (will be ignored for non-isolated processes).

Note that this call does not take immediate effect, but will be applied the next time the impacted process is adjusted for some other reason. Typically you would call this before then calling a new bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection) on the service of interest, with that binding causing the process to be shuffled accordingly.

Parameters
conn	ServiceConnection: The connection interface previously supplied to bindService(). This parameter must not be null.
group	int: A group to put this connection's process in. Upon calling here, this will override any previous group that was set for that process. The group tells the system about processes that are logically grouped together, so should be managed as one unit of importance (such as when being considered a recently used app). All processes in the same app with the same group are considered to be related. Supplying 0 reverts to the default behavior of not grouping.
importance	int: Additional importance of the processes within a group. Upon calling here, this will override any previous importance that was set for that process. The most important process is 0, and higher values are successively less important. You can view this as describing how to order the processes in an array, with the processes at the end of the array being the least important. This value has no meaning besides indicating how processes should be ordered in that array one after the other. This provides a way to fine-tune the system's process killing, guiding it to kill processes at the end of the array first.

See also:

• bindIsolatedService(Intent, BindServiceFlags, String, Executor, ServiceConnection)