Added in API level 1

ContextWrapper

---

Kotlin |Java

open class ContextWrapper : Context

kotlin.Any
↳	android.content.Context
	↳	android.content.ContextWrapper

Known Direct Subclasses Application, BackupAgent, ContextThemeWrapper, IsolatedContext, MutableContextWrapper, RenamingDelegatingContext, Service Application Base class for maintaining global application state. BackupAgent Provides the central interface between an application and Android's data backup infrastructure. ContextThemeWrapper A context wrapper that allows you to modify or replace the theme of the wrapped context. IsolatedContext A mock context which prevents its users from talking to the rest of the device while stubbing enough methods to satify code that tries to talk to other packages. MutableContextWrapper Special version of ContextWrapper that allows the base context to be modified after it is initially set. RenamingDelegatingContext This is a class which delegates to the given context, but performs database and file operations with a renamed database/file name (prefixes default names with a given prefix). 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.

Known Indirect Subclasses AbstractInputMethodService, AccessibilityService, AccountAuthenticatorActivity, Activity, ActivityGroup, AliasActivity, AppFunctionService, AutofillService, BackupAgentHelper, CallRedirectionService, CallScreeningService, CameraPrewarmService, and 50 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 Base class for implementing an Activity that is used to help implement an AbstractAccountAuthenticator. Activity An activity is a single, focused thing that the user can do. ActivityGroup A screen that contains and runs multiple embedded activities. AliasActivity Stub activity that launches another activity (and then finishes itself) based on information in its component's manifest meta-data. AppFunctionService Abstract base class to provide app functions to the system. 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. 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 A service that receives calls from the system when the user is asked to choose a target for an intent explicitly by another app. CompanionDeviceService A service that receives calls from the system with device events. ConditionProviderService A service that provides conditions about boolean state. 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. Referred to as a system managed ConnectionService. Are a standalone calling app and don't want their calls to be integrated into the built-in phone app. Referred to as a self managed ConnectionService. Once implemented, the needs to take the following steps so that Telecom will bind to it: 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 An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item. 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 IntentService is an extension of the Service component class that handles asynchronous requests (expressed as Intents) on demand. 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 android.app.job.JobScheduler. LauncherActivity Displays a list of all activities which can be performed for a given intent. ListActivity An activity that displays a list of items by binding to a data source such as an array or Cursor, and exposes event handlers when the user selects an item. 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 A mock android.app.Application class. 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 is the base class for an activity to show a hierarchy of preferences to the user. 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. 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 SettingsPreferenceService Base class for a service that exposes its settings preferences to external access. SpellCheckerService SpellCheckerService provides an abstract base class for a spell checker. TabActivity For apps developing against android.os.Build.VERSION_CODES#HONEYCOMB or later, tabs are typically presented in the UI using the new ActionBar.newTab() and related APIs for placing tabs within their action bar area. TextToSpeechService Abstract base class for TTS engine implementations. TileService A TileService provides the user a tile that can be added to Quick Settings. TvAdService The TvAdService class represents a TV client-side advertisement service. 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 android.app.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.

Proxying implementation of Context that simply delegates all of its calls to another Context. Can be subclassed to modify behavior without changing the original Context.

Summary

Inherited constants

From class Context String ACCESSIBILITY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.view.accessibility.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 android.accounts.AccountManager for receiving intents at a time of your choosing. String ACTIVITY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.ActivityManager for interacting with the global system state. String ADVANCED_PROTECTION_SERVICE Use with getSystemService(java.lang.String) to retrieve an android.security.advancedprotection.AdvancedProtectionManager String ALARM_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.AlarmManager for receiving intents at a time of your choosing. String APPWIDGET_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.appwidget.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 android.app.AppOpsManager for tracking application operations on the device. String APP_SEARCH_SERVICE Use with getSystemService(java.lang.String) to retrieve an android.app.appsearch.AppSearchManager for indexing and querying app data managed by the system. String AUDIO_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.AudioManager for handling management of volume, ringer modes and audio routing. String BATTERY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.BatteryManager for managing battery state. Int BIND_ABOVE_CLIENT Flag for #bindService: 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. Int BIND_ADJUST_WITH_ACTIVITY Flag for #bindService: 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: 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 android.os.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. Int BIND_ALLOW_OOM_MANAGEMENT Flag for #bindService: 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. Int BIND_AUTO_CREATE Flag for #bindService: automatically create the service as long as the binding exists. Note that while this will create the service, its android.app.Service#onStartCommand method will still only be called due to an explicit call to startService. Even without that, though, this still provides you with access to the service object while the service is created. Note that prior to android.os.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. Int BIND_DEBUG_UNBIND Flag for #bindService: include debugging help for mismatched calls to unbind. When this flag is set, the callstack of the following unbindService 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. Int BIND_EXTERNAL_SERVICE Flag for #bindService: 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. 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: 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. Int BIND_INCLUDE_CAPABILITIES Flag for #bindService: 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 android.os.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 android.os.Build.VERSION_CODES#R, BIND_INCLUDE_CAPABILITIES is implicit. Int BIND_NOT_FOREGROUND Flag for #bindService: 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. Int BIND_NOT_PERCEPTIBLE Flag for #bindService: 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. Int BIND_PACKAGE_ISOLATED_PROCESS Flag for #bindIsolatedService: 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. Int BIND_SHARED_ISOLATED_PROCESS Flag for #bindIsolatedService: 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 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 android.R.attr#allowSharedIsolatedProcess attribute to true are allowed to be bound into a shared isolated process. Int BIND_WAIVE_PRIORITY Flag for #bindService: 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. String BIOMETRIC_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.hardware.biometrics.BiometricManager for handling biometric and PIN/pattern/password authentication. String BLOB_STORE_SERVICE Use with getSystemService(java.lang.String) to retrieve a 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 android.bluetooth.BluetoothManager for using Bluetooth. String BUGREPORT_SERVICE Service to capture a bugreport. String CAMERA_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.hardware.camera2.CameraManager for interacting with camera devices. String CAPTIONING_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.view.accessibility.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 android.telephony.CarrierConfigManager for reading carrier configuration values. String CLIPBOARD_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.content.ClipboardManager for accessing and modifying the contents of the global clipboard. String COMPANION_DEVICE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.companion.CompanionDeviceManager for managing companion devices String CONNECTIVITY_DIAGNOSTICS_SERVICE Use with getSystemService(java.lang.String) to retrieve a 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 for handling management of network connections. String CONSUMER_IR_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.hardware.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: 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! Int CONTEXT_INCLUDE_CODE Flag for use with createPackageContext: 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. Int CONTEXT_RESTRICTED Flag for use with createPackageContext: a restricted context may disable specific features. For instance, a View associated with a restricted context would ignore particular XML attributes. String CREDENTIAL_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.credentials.CredentialManager to authenticate a user to your app. String CROSS_PROFILE_APPS_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.content.pm.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 android.devicelock.DeviceLockManager. String DEVICE_POLICY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.admin.DevicePolicyManager for working with global device policy management. String DISPLAY_HASH_SERVICE Use with getSystemService(java.lang.String) to access android.view.displayhash.DisplayHashManager to handle display hashes. String DISPLAY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.hardware.display.DisplayManager for interacting with display devices. String DOMAIN_VERIFICATION_SERVICE Use with getSystemService(java.lang.String) to access android.content.pm.verify.domain.DomainVerificationManager to retrieve approval and user state for declared web domains. String DOWNLOAD_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.DownloadManager for requesting HTTP downloads. String DROPBOX_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.DropBoxManager instance for recording diagnostic logs. String EUICC_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.telephony.euicc.EuiccManager to manage the device eUICC (embedded SIM). String FILE_INTEGRITY_SERVICE Use with getSystemService(java.lang.String) to retrieve an android.security.FileIntegrityManager. String FINGERPRINT_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.hardware.fingerprint.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 android.os.HardwarePropertiesManager for accessing the hardware properties service. String HEALTHCONNECT_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.health.connect.HealthConnectManager. String INPUT_METHOD_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.view.inputmethod.InputMethodManager for accessing input methods. String INPUT_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.hardware.input.InputManager for interacting with input devices. String IPSEC_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.net.IpSecManager for encrypting Sockets or Networks with IPSec. String JOB_SCHEDULER_SERVICE Use with getSystemService(java.lang.String) to retrieve a instance for managing occasional background tasks. String KEYGUARD_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.KeyguardManager for controlling keyguard. String KEYSTORE_SERVICE Use with getSystemService(java.lang.String) to retrieve a for accessing Android Keystore functions. String LAUNCHER_APPS_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.content.pm.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 android.view.LayoutInflater for inflating layout resources in this context. String LOCALE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.LocaleManager. String LOCATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a for controlling location updates. String MEDIA_COMMUNICATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.MediaCommunicationManager for managing android.media.MediaSession2. String MEDIA_METRICS_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.metrics.MediaMetricsManager for interacting with media metrics on the device. String MEDIA_PROJECTION_SERVICE Use with getSystemService(java.lang.String) to retrieve a instance for managing media projection sessions. String MEDIA_QUALITY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.quality.MediaQuality for standardize picture and audio API parameters. String MEDIA_ROUTER_SERVICE Use with #getSystemService to retrieve a android.media.MediaRouter for controlling and managing routing of media. String MEDIA_SESSION_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.session.MediaSessionManager for managing media Sessions. String MIDI_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.midi.MidiManager for accessing the MIDI service. Int MODE_APPEND File creation mode: for use with openFileOutput, 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 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. 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 File creation mode: allow all other applications to have read access to the created file. Starting from android.os.Build.VERSION_CODES#N, attempting to use this mode throws a SecurityException. Int MODE_WORLD_WRITEABLE File creation mode: allow all other applications to have write access to the created file. Starting from android.os.Build.VERSION_CODES#N, attempting to use this mode will throw a SecurityException. String NETWORK_STATS_SERVICE Use with getSystemService(java.lang.String) to retrieve a for querying network usage stats. String NFC_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.nfc.NfcManager for using NFC. String NOTIFICATION_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.NotificationManager for informing the user of background events. String NSD_SERVICE Use with getSystemService(java.lang.String) to retrieve a for handling management of network service discovery String OVERLAY_SERVICE Use with getSystemService(java.lang.String) to retrieve a 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 android.os.PerformanceHintManager for accessing the performance hinting service. String PERSISTENT_DATA_BLOCK_SERVICE Use with getSystemService(java.lang.String) to retrieve a instance for interacting with a storage device that lives across factory resets. String POWER_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.PowerManager for controlling power management, including "wake locks," which let you keep the device on while you're running long tasks. String PRINT_SERVICE android.print.PrintManager for printing and managing printers and print tasks. String PROFILING_SERVICE Use with getSystemService(java.lang.String) to retrieve an android.os.ProfilingManager. Int RECEIVER_EXPORTED Flag for #registerReceiver: The receiver can receive broadcasts from other Apps. Has the same behavior as marking a statically registered receiver with "exported=true" Int RECEIVER_NOT_EXPORTED Flag for #registerReceiver: The receiver cannot receive broadcasts from other Apps. Has the same behavior as marking a statically registered receiver with "exported=false" Int RECEIVER_VISIBLE_TO_INSTANT_APPS Flag for #registerReceiver: The receiver can receive broadcasts from Instant Apps. String RESTRICTIONS_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.content.RestrictionsManager for retrieving application restrictions and requesting permissions for restricted operations. String ROLE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.role.RoleManager for managing roles. String SATELLITE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.telephony.satellite.SatelliteManager for accessing satellite functionality. String SEARCH_SERVICE Use with getSystemService(java.lang.String) to retrieve a for handling searches. Configuration.UI_MODE_TYPE_WATCH does not support android.app.SearchManager. String SECURITY_STATE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.SecurityStateManager for accessing the security state manager service. String SENSOR_SERVICE Use with getSystemService(java.lang.String) to retrieve a for accessing sensors. String SHORTCUT_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.content.pm.ShortcutManager for accessing the launcher shortcut service. String STATUS_BAR_SERVICE Use with getSystemService(java.lang.String) to retrieve a for interacting with the status bar and quick settings. String STORAGE_SERVICE Use with getSystemService(java.lang.String) to retrieve a for accessing system storage functions. String STORAGE_STATS_SERVICE Use with getSystemService(java.lang.String) to retrieve a for accessing system storage statistics. String SYSTEM_HEALTH_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.health.SystemHealthManager for accessing system health (battery, power, memory, etc) metrics. String TELECOM_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.telecom.TelecomManager to manage telecom-related features of the device. String TELEPHONY_IMS_SERVICE Use with getSystemService(java.lang.String) to retrieve an android.telephony.ims.ImsManager. String TELEPHONY_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.telephony.TelephonyManager for handling management the telephony features of the device. String TELEPHONY_SUBSCRIPTION_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.telephony.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 android.view.textservice.TextServicesManager for accessing text services. String TV_AD_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.tv.ad.TvAdManager for interacting with TV client-side advertisement services on the device. String TV_INPUT_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.tv.TvInputManager for interacting with TV inputs on the device. String TV_INTERACTIVE_APP_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.media.tv.interactive.TvInteractiveAppManager for interacting with TV interactive applications on the device. String UI_MODE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.app.UiModeManager for controlling UI modes. String USAGE_STATS_SERVICE Use with getSystemService(java.lang.String) to retrieve a for querying device usage stats. String USB_SERVICE Use with getSystemService(java.lang.String) to retrieve a 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 android.os.UserManager for managing users on devices that support multiple users. String VIBRATOR_MANAGER_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.VibratorManager for accessing the device vibrators, interacting with individual ones and playing synchronized effects on multiple vibrators. String VIBRATOR_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.os.Vibrator for interacting with the vibration hardware. String VIRTUAL_DEVICE_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.companion.virtual.VirtualDeviceManager for managing virtual devices. On devices without PackageManager.FEATURE_COMPANION_DEVICE_SETUP system feature the getSystemService(java.lang.String) will return null. String VPN_MANAGEMENT_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.net.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 android.net.wifi.aware.WifiAwareManager for handling management of Wi-Fi Aware. String WIFI_P2P_SERVICE Use with getSystemService(java.lang.String) to retrieve a for handling management of Wi-Fi peer-to-peer connections. String WIFI_RTT_RANGING_SERVICE Use with getSystemService(java.lang.String) to retrieve a for ranging devices with wifi. String WIFI_SERVICE Use with getSystemService(java.lang.String) to retrieve a for handling management of Wi-Fi access. String WINDOW_SERVICE Use with getSystemService(java.lang.String) to retrieve a android.view.WindowManager for accessing the system's window manager.

Public constructors
ContextWrapper(base: Context!)

Public methods
open Boolean	bindIsolatedService(service: Intent, flags: Int, instanceName: String, executor: Executor, conn: ServiceConnection)
open Boolean	bindService(service: Intent, flags: Context.BindServiceFlags, executor: Executor, conn: ServiceConnection) See bindService(android.content.Intent,int,java.util.concurrent.Executor,android.content.ServiceConnection) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.
open Boolean	bindService(service: Intent, conn: ServiceConnection, flags: Context.BindServiceFlags) See bindService(android.content.Intent,android.content.ServiceConnection,int) Call BindServiceFlags.of(long) to obtain a BindServiceFlags object.
open Boolean	bindService(service: Intent, conn: ServiceConnection, flags: Int)
open Boolean	bindService(service: Intent, flags: Int, executor: Executor, conn: ServiceConnection)
open Int	checkCallingOrSelfPermission(permission: String)
open Int	checkCallingOrSelfUriPermission(uri: Uri!, modeFlags: Int)
open IntArray	checkCallingOrSelfUriPermissions(uris: MutableList<Uri!>, modeFlags: Int) Determine whether the calling process of an IPC or you has been granted permission to access a list of URIs.
open Int	checkCallingPermission(permission: String)
open Int	checkCallingUriPermission(uri: Uri!, modeFlags: Int)
open IntArray	checkCallingUriPermissions(uris: MutableList<Uri!>, modeFlags: Int) Determine whether the calling process and uid has been granted permission to access a list of URIs.
open Int	checkContentUriPermissionFull(uri: Uri, pid: Int, uid: Int, modeFlags: Int) Determine whether a particular process and uid has been granted permission to access a specific content URI.
open Int	checkPermission(permission: String, pid: Int, uid: Int)
open Int	checkSelfPermission(permission: String)
open Int	checkUriPermission(uri: Uri!, pid: Int, uid: Int, modeFlags: Int)
open Int	checkUriPermission(uri: Uri?, readPermission: String?, writePermission: String?, pid: Int, uid: Int, modeFlags: Int) Check both a Uri and normal permission.
open IntArray	checkUriPermissions(uris: MutableList<Uri!>, pid: Int, uid: Int, modeFlags: Int) Determine whether a particular process and uid has been granted permission to access a list of URIs.
open Unit	clearWallpaper()
open Context	createAttributionContext(attributionTag: String?) Return a new Context object for the current Context but attribute to a different tag.
open Context!	createConfigurationContext(overrideConfiguration: Configuration)
open Context	createContext(contextParams: ContextParams) Creates a context with specific properties and behaviors.
open Context	createDeviceContext(deviceId: Int) Returns a new Context object from the current context but with device association given by the deviceId.
open Context!	createDeviceProtectedStorageContext()
open Context!	createDisplayContext(display: Display)
open Context!	createPackageContext(packageName: String!, flags: Int)
open Context	createWindowContext(display: Display, type: Int, options: Bundle?) Creates a Context for a non-activity window on the given Display.
open Context	createWindowContext(type: Int, options: Bundle?) Creates a Context for a non-activity window.
open Array<String!>!	databaseList()
open Boolean	deleteDatabase(name: String!)
open Boolean	deleteFile(name: String!)
open Boolean	deleteSharedPreferences(name: String!)
open Unit	enforceCallingOrSelfPermission(permission: String, message: String?) If neither you nor the calling process of an IPC you are handling has been granted a particular permission, throw a SecurityException.
open Unit	enforceCallingOrSelfUriPermission(uri: Uri!, modeFlags: Int, message: String!)
open Unit	enforceCallingPermission(permission: String, message: String?) If the calling process of an IPC you are handling has not been granted a particular permission, throw a SecurityException.
open Unit	enforceCallingUriPermission(uri: Uri!, modeFlags: Int, message: String!)
open Unit	enforcePermission(permission: String, pid: Int, uid: Int, message: String?) If the given permission is not allowed for a particular process and user ID running in the system, throw a SecurityException.
open Unit	enforceUriPermission(uri: Uri!, pid: Int, uid: Int, modeFlags: Int, message: String!)
open Unit	enforceUriPermission(uri: Uri?, readPermission: String?, writePermission: String?, pid: Int, uid: Int, modeFlags: Int, message: String?) Enforce both a Uri and normal permission.
open Array<String!>!	fileList()
open Context!	getApplicationContext()
open ApplicationInfo!	getApplicationInfo()
open AssetManager!	getAssets()
open AttributionSource	getAttributionSource()
open Context!	getBaseContext()
open File!	getCacheDir()
open ClassLoader!	getClassLoader()
open File!	getCodeCacheDir()
open ContentResolver!	getContentResolver()
open File!	getDataDir()
open File!	getDatabasePath(name: String!)
open Int	getDeviceId()
open File!	getDir(name: String!, mode: Int)
open Display!	getDisplay() Get the display this context is associated with.
open 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.
open Array<File!>!	getExternalCacheDirs()
open File?	getExternalFilesDir(type: String?) Returns the absolute path to the directory on the primary shared/external storage device where the application can place persistent files it owns.
open Array<File!>!	getExternalFilesDirs(type: String!)
open Array<File!>!	getExternalMediaDirs()
open File!	getFileStreamPath(name: String!)
open File!	getFilesDir()
open Executor!	getMainExecutor()
open Looper!	getMainLooper()
open File!	getNoBackupFilesDir()
open File!	getObbDir()
open Array<File!>!	getObbDirs()
open String!	getPackageCodePath()
open PackageManager!	getPackageManager()
open String!	getPackageName()
open String!	getPackageResourcePath()
open ContextParams?	getParams() Return the set of parameters which this Context was created with, if it was created via createContext(android.content.ContextParams).
open Resources!	getResources()
open SharedPreferences!	getSharedPreferences(name: String!, mode: Int)
open Any!	getSystemService(name: String)
open String?	getSystemServiceName(serviceClass: Class<*>)
open Resources.Theme!	getTheme()
open Drawable!	getWallpaper()
open Int	getWallpaperDesiredMinimumHeight()
open Int	getWallpaperDesiredMinimumWidth()
open Unit	grantUriPermission(toPackage: String!, uri: Uri!, modeFlags: Int)
open Boolean	isDeviceProtectedStorage()
open Boolean	isRestricted()
open Boolean	moveDatabaseFrom(sourceContext: Context!, name: String!)
open Boolean	moveSharedPreferencesFrom(sourceContext: Context!, name: String!)
open FileInputStream!	openFileInput(name: String!)
open FileOutputStream!	openFileOutput(name: String!, mode: Int)
open SQLiteDatabase!	openOrCreateDatabase(name: String!, mode: Int, factory: SQLiteDatabase.CursorFactory!)
open SQLiteDatabase!	openOrCreateDatabase(name: String!, mode: Int, factory: SQLiteDatabase.CursorFactory!, errorHandler: DatabaseErrorHandler?) Open a new private SQLiteDatabase associated with this Context's application package.
open Drawable!	peekWallpaper()
open Unit	registerComponentCallbacks(callback: ComponentCallbacks!) 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.
open Unit	registerDeviceIdChangeListener(executor: Executor, listener: IntConsumer) Adds a new device ID changed listener to the Context, which will be called when the device association is changed by the system.
open Intent?	registerReceiver(receiver: BroadcastReceiver?, filter: IntentFilter!) Register a BroadcastReceiver to be run in the main activity thread.
open Intent?	registerReceiver(receiver: BroadcastReceiver?, filter: IntentFilter!, flags: Int) Register to receive intent broadcasts, with the receiver optionally being exposed to Instant Apps.
open Intent?	registerReceiver(receiver: BroadcastReceiver?, filter: IntentFilter!, broadcastPermission: String?, scheduler: Handler?) Register to receive intent broadcasts, to run in the context of scheduler.
open Intent?	registerReceiver(receiver: BroadcastReceiver?, filter: IntentFilter!, broadcastPermission: String?, scheduler: Handler?, flags: Int) Register to receive intent broadcasts, to run in the context of scheduler.
open Unit	removeStickyBroadcast(intent: Intent!)
open Unit	removeStickyBroadcastAsUser(intent: Intent!, user: UserHandle!)
open Unit	revokeSelfPermissionsOnKill(permissions: MutableCollection<String!>) Triggers the revocation of one or more permissions for the calling package.
open Unit	revokeUriPermission(uri: Uri!, modeFlags: Int)
open Unit	revokeUriPermission(targetPackage: String!, uri: Uri!, modeFlags: Int)
open Unit	sendBroadcast(intent: Intent!)
open Unit	sendBroadcast(intent: Intent!, receiverPermission: String?) Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
open Unit	sendBroadcast(intent: Intent, receiverPermission: String?, options: Bundle?) Broadcast the given intent to all interested BroadcastReceivers, allowing an optional required permission to be enforced.
open Unit	sendBroadcastAsUser(intent: Intent!, user: UserHandle!)
open Unit	sendBroadcastAsUser(intent: Intent!, user: UserHandle!, receiverPermission: String?)
open Unit	sendOrderedBroadcast(intent: Intent, initialCode: Int, receiverPermission: String?, receiverAppOp: String?, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialData: String?, initialExtras: Bundle?, options: Bundle?)
open Unit	sendOrderedBroadcast(intent: Intent!, receiverPermission: String?) 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.
open Unit	sendOrderedBroadcast(intent: Intent, receiverPermission: String?, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialCode: Int, initialData: String?, initialExtras: Bundle?) Version of sendBroadcast(android.content.Intent) that allows you to receive data back from the broadcast.
open Unit	sendOrderedBroadcast(intent: Intent, receiverPermission: String?, options: Bundle?) 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.
open Unit	sendOrderedBroadcast(intent: Intent, receiverPermission: String?, options: Bundle?, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialCode: Int, initialData: String?, initialExtras: Bundle?) Version of sendBroadcast(android.content.Intent) that allows you to receive data back from the broadcast.
open Unit	sendOrderedBroadcast(intent: Intent, receiverPermission: String?, receiverAppOp: String?, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialCode: Int, initialData: String?, initialExtras: Bundle?) 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.
open Unit	sendOrderedBroadcastAsUser(intent: Intent!, user: UserHandle!, receiverPermission: String?, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialCode: Int, initialData: String?, initialExtras: Bundle?) 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.
open Unit	sendStickyBroadcast(intent: Intent!)
open Unit	sendStickyBroadcast(intent: Intent, options: Bundle?) 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).
open Unit	sendStickyBroadcastAsUser(intent: Intent!, user: UserHandle!)
open Unit	sendStickyOrderedBroadcast(intent: Intent!, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialCode: Int, initialData: String?, initialExtras: Bundle?) Version of #sendStickyBroadcast that allows you to receive data back from the broadcast.
open Unit	sendStickyOrderedBroadcastAsUser(intent: Intent!, user: UserHandle!, resultReceiver: BroadcastReceiver?, scheduler: Handler?, initialCode: Int, initialData: String?, initialExtras: Bundle?) 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.
open Unit	setTheme(resid: Int)
open Unit	setWallpaper(bitmap: Bitmap!)
open Unit	setWallpaper(data: InputStream!)
open Unit	startActivities(intents: Array<Intent!>!)
open Unit	startActivities(intents: Array<Intent!>!, options: Bundle?) Launch multiple new activities.
open Unit	startActivity(intent: Intent!)
open Unit	startActivity(intent: Intent!, options: Bundle?) Launch a new activity.
open ComponentName?	startForegroundService(service: Intent!) 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.
open Boolean	startInstrumentation(className: ComponentName, profileFile: String?, arguments: Bundle?) Start executing an android.app.Instrumentation class.
open Unit	startIntentSender(intent: IntentSender!, fillInIntent: Intent?, flagsMask: Int, flagsValues: Int, extraFlags: Int) Same as startIntentSender(android.content.IntentSender,android.content.Intent,int,int,int,android.os.Bundle) with no options specified.
open Unit	startIntentSender(intent: IntentSender!, fillInIntent: Intent?, flagsMask: Int, flagsValues: Int, extraFlags: Int, options: Bundle?) Like startActivity(android.content.Intent,android.os.Bundle), but taking a IntentSender to start.
open ComponentName?	startService(service: Intent!) Request that a given application service be started.
open Boolean	stopService(name: Intent!)
open Unit	unbindService(conn: ServiceConnection)
open Unit	unregisterComponentCallbacks(callback: ComponentCallbacks!) Remove a ComponentCallbacks object that was previously registered with registerComponentCallbacks(android.content.ComponentCallbacks).
open Unit	unregisterDeviceIdChangeListener(listener: IntConsumer) Removes a device ID changed listener from the Context.
open Unit	unregisterReceiver(receiver: BroadcastReceiver!)
open Unit	updateServiceGroup(conn: ServiceConnection, group: Int, importance: Int)

Protected methods
open Unit	attachBaseContext(base: Context!) Set the base context for this ContextWrapper.

Inherited functions

From class Context Boolean bindIsolatedService(service: Intent, flags: Context.BindServiceFlags, instanceName: String, executor: Executor, conn: ServiceConnection) 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. Int getColor(id: Int) Returns a color associated with a particular resource ID and styled for the current theme. ColorStateList getColorStateList(id: Int) Returns a color state list associated with a particular resource ID and styled for the current theme. Drawable? getDrawable(id: Int) Returns a drawable object associated with a particular resource ID and styled for the current theme. String getString(resId: Int) Returns a localized string from the application's package's default string table. String getString(resId: Int, vararg formatArgs: Any!) Returns a localized formatted string from the application's package's default string table, substituting the format arguments as defined in java.util.Formatter and java.lang.String#format. T getSystemService(serviceClass: Class<T>) Return the handle to a system-level service by class. Currently available classes are: android.view.WindowManager, android.view.LayoutInflater, android.app.ActivityManager, android.os.PowerManager, android.app.AlarmManager, android.app.NotificationManager, android.app.KeyguardManager, android.location.LocationManager, android.app.SearchManager, android.os.Vibrator, android.net.ConnectivityManager, android.net.wifi.WifiManager, android.media.AudioManager, android.media.MediaRouter, android.telephony.TelephonyManager, android.telephony.SubscriptionManager, android.view.inputmethod.InputMethodManager, android.app.UiModeManager, android.app.DownloadManager, android.os.BatteryManager, android.app.job.JobScheduler, android.app.usage.NetworkStatsManager, android.content.pm.verify.domain.DomainVerificationManager, android.view.displayhash.DisplayHashManager android.security.authenticationpolicy.AuthenticationPolicyManager. 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. CharSequence getText(resId: Int) Return a localized, styled CharSequence from the application's package's default string table. TypedArray obtainStyledAttributes(set: AttributeSet?, attrs: IntArray) Retrieve styled attribute information in this Context's theme. See android.content.res.Resources.Theme#obtainStyledAttributes(AttributeSet, int[], int, int) for more information. TypedArray obtainStyledAttributes(set: AttributeSet?, attrs: IntArray, defStyleAttr: Int, defStyleRes: Int) Retrieve styled attribute information in this Context's theme. See android.content.res.Resources.Theme#obtainStyledAttributes(AttributeSet, int[], int, int) for more information. TypedArray obtainStyledAttributes(resid: Int, attrs: IntArray) Retrieve styled attribute information in this Context's theme. See android.content.res.Resources.Theme#obtainStyledAttributes(int, int[]) for more information. TypedArray obtainStyledAttributes(attrs: IntArray) Retrieve styled attribute information in this Context's theme. See android.content.res.Resources.Theme#obtainStyledAttributes(int[]) for more information. Unit revokeSelfPermissionOnKill(permName: String) Triggers the asynchronous revocation of a runtime permission. If the permission is not currently granted, nothing happens (even if later granted by the user). Unit sendBroadcastWithMultiplePermissions(intent: Intent, receiverPermissions: Array<String!>) 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.

Public constructors

ContextWrapper

Added in API level 1

ContextWrapper(base: Context!)

Public methods

bindIsolatedService

Added in API level 29

open fun bindIsolatedService(
    service: Intent, 
    flags: Int, 
    instanceName: String, 
    executor: Executor, 
    conn: ServiceConnection
): Boolean

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.
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.

Return
Boolean	Returns success of binding as per #bindService.

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

bindService

Added in API level 34

open fun bindService(
    service: Intent, 
    flags: Context.BindServiceFlags, 
    executor: Executor, 
    conn: ServiceConnection
): Boolean

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.
conn	ServiceConnection: This value cannot be null.

bindService

Added in API level 34

open fun bindService(
    service: Intent, 
    conn: ServiceConnection, 
    flags: Context.BindServiceFlags
): Boolean

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.

bindService

Added in API level 1

open fun bindService(
    service: Intent, 
    conn: ServiceConnection, 
    flags: Int
): Boolean

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

Return
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 to release the connection.

Exceptions
java.lang.SecurityException	If the caller does not have permission to access the service or the service cannot be found. Call unbindService to release the connection when this exception is thrown.

bindService

Added in API level 29

open fun bindService(
    service: Intent, 
    flags: Int, 
    executor: Executor, 
    conn: ServiceConnection
): Boolean

Parameters
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.
service	Intent: This value cannot be null.
flags	Int: Value is either 0 or a combination of android.content.Context#BIND_AUTO_CREATE, android.content.Context#BIND_DEBUG_UNBIND, android.content.Context#BIND_NOT_FOREGROUND, android.content.Context#BIND_ABOVE_CLIENT, android.content.Context#BIND_ALLOW_OOM_MANAGEMENT, android.content.Context#BIND_WAIVE_PRIORITY, android.content.Context#BIND_IMPORTANT, android.content.Context#BIND_ADJUST_WITH_ACTIVITY, android.content.Context#BIND_NOT_PERCEPTIBLE, android.content.Context#BIND_ALLOW_ACTIVITY_STARTS, android.content.Context#BIND_INCLUDE_CAPABILITIES, android.content.Context#BIND_SHARED_ISOLATED_PROCESS, android.content.Context#BIND_PACKAGE_ISOLATED_PROCESS, and android.content.Context#BIND_EXTERNAL_SERVICE
conn	ServiceConnection: This value cannot be null.

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

checkCallingOrSelfPermission

Added in API level 1

open fun checkCallingOrSelfPermission(permission: String): Int

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

Return
Int	PackageManager.PERMISSION_GRANTED if the calling pid/uid is allowed that permission, or PackageManager.PERMISSION_DENIED if it is not. Value is android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkCallingOrSelfUriPermission

Added in API level 1

open fun checkCallingOrSelfUriPermission(
    uri: Uri!, 
    modeFlags: Int
): Int

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

Return
Int	PackageManager.PERMISSION_GRANTED if the caller is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. Value is android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkCallingOrSelfUriPermissions

Added in API level 31

open fun checkCallingOrSelfUriPermissions(
    uris: MutableList<Uri!>, 
    modeFlags: Int
): IntArray

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, except it grants your own permissions if you are not currently processing an IPC. Use with care!

Parameters
uris	MutableList<Uri!>: This value cannot be null.
modeFlags	Int: The access modes to check. Value is either 0 or a combination of android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

Return
IntArray	This value cannot be null.

checkCallingPermission

Added in API level 1

open fun checkCallingPermission(permission: String): Int

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

Return
Int	PackageManager.PERMISSION_GRANTED if the calling pid/uid is allowed that permission, or PackageManager.PERMISSION_DENIED if it is not. Value is android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkCallingUriPermission

Added in API level 1

open fun checkCallingUriPermission(
    uri: Uri!, 
    modeFlags: Int
): Int

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

Return
Int	PackageManager.PERMISSION_GRANTED if the caller is allowed to access that uri, or PackageManager.PERMISSION_DENIED if it is not. Value is android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkCallingUriPermissions

Added in API level 31

open fun checkCallingUriPermissions(
    uris: MutableList<Uri!>, 
    modeFlags: Int
): IntArray

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 android.os.Binder#getCallingPid and android.os.Binder#getCallingUid. One important difference is that if you are not currently processing an IPC, this function will always fail.

Parameters
uris	MutableList<Uri!>: This value cannot be null.
modeFlags	Int: The access modes to check. Value is either 0 or a combination of android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

Return
IntArray	This value cannot be null.

checkContentUriPermissionFull

Added in API level 35

open fun checkContentUriPermissionFull(
    uri: Uri, 
    pid: Int, 
    uid: Int, 
    modeFlags: Int
): Int

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: 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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

Return
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 android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkPermission

Added in API level 1

open fun checkPermission(
    permission: String, 
    pid: Int, 
    uid: Int
): Int

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.

Return
Int	PackageManager.PERMISSION_GRANTED if the given pid/uid is allowed that permission, or PackageManager.PERMISSION_DENIED if it is not. Value is android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkSelfPermission

Added in API level 23

open fun checkSelfPermission(permission: String): Int

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

Return
Int	PackageManager.PERMISSION_GRANTED if you have the permission, or PackageManager.PERMISSION_DENIED if not. Value is android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkUriPermission

Added in API level 1

open fun checkUriPermission(
    uri: Uri!, 
    pid: Int, 
    uid: Int, 
    modeFlags: Int
): Int

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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

Return
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 android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkUriPermission

Added in API level 1

open fun checkUriPermission(
    uri: Uri?, 
    readPermission: String?, 
    writePermission: String?, 
    pid: Int, 
    uid: Int, 
    modeFlags: Int
): Int

Check both a Uri and normal permission. This allows you to perform both checkPermission and #checkUriPermission in one call.

Parameters
uri	Uri?: This value may be null.
readPermission	String?: This value may be null.
writePermission	String?: This value may 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. Value is either 0 or a combination of android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

Return
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 android.content.pm.PackageManager#PERMISSION_GRANTED, or android.content.pm.PackageManager#PERMISSION_DENIED

checkUriPermissions

Added in API level 31

open fun checkUriPermissions(
    uris: MutableList<Uri!>, 
    pid: Int, 
    uid: Int, 
    modeFlags: Int
): IntArray

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 android.os.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	MutableList<Uri!>: 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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

Return
IntArray	This value cannot be null.

clearWallpaper

Added in API level 1

open fun clearWallpaper(): Unit

Deprecated: Deprecated in Java.

createAttributionContext

Added in API level 30

open fun createAttributionContext(attributionTag: String?): Context

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?: This value may be null.

Return
Context	This value cannot be null.

createConfigurationContext

Added in API level 17

open fun createConfigurationContext(overrideConfiguration: Configuration): Context!

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.

Return
Context!	A Context with the given configuration override.

createContext

Added in API level 31

open fun createContext(contextParams: ContextParams): Context

Creates a context with specific properties and behaviors.

Parameters
contextParams	ContextParams: This value cannot be null.

Return
Context	This value cannot be null.

createDeviceContext

Added in API level 34

open fun createDeviceContext(deviceId: Int): Context

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.

Return
Context	This value cannot be null.

Exceptions
java.lang.IllegalArgumentException	if the given device ID is not a valid ID of the default device or a virtual device.

createDeviceProtectedStorageContext

Added in API level 24

open fun createDeviceProtectedStorageContext(): Context!

createDisplayContext

Added in API level 17

open fun createDisplayContext(display: Display): Context!

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

Return
Context!	A context for the display.

createPackageContext

Added in API level 1

open fun createPackageContext(
    packageName: String!, 
    flags: Int
): Context!

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

Return
Context!	A Context for the application.

Exceptions
java.lang.SecurityException
android.content.pm.PackageManager.NameNotFoundException	if there is no application with the given package name.

createWindowContext

Added in API level 31

open fun createWindowContext(
    display: Display, 
    type: Int, 
    options: Bundle?
): Context

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: This value cannot be null.
type	Int: Value is android.view.WindowManager.LayoutParams#TYPE_BASE_APPLICATION, android.view.WindowManager.LayoutParams#TYPE_APPLICATION, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_STARTING, android.view.WindowManager.LayoutParams#TYPE_DRAWN_APPLICATION, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_PANEL, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_MEDIA, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_SUB_PANEL, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_ATTACHED_DIALOG, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ABOVE_SUB_PANEL, android.view.WindowManager.LayoutParams#TYPE_STATUS_BAR, android.view.WindowManager.LayoutParams#TYPE_SEARCH_BAR, android.view.WindowManager.LayoutParams#TYPE_PHONE, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_ALERT, android.view.WindowManager.LayoutParams.TYPE_KEYGUARD, android.view.WindowManager.LayoutParams#TYPE_TOAST, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_OVERLAY, android.view.WindowManager.LayoutParams#TYPE_PRIORITY_PHONE, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_DIALOG, android.view.WindowManager.LayoutParams#TYPE_KEYGUARD_DIALOG, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_ERROR, android.view.WindowManager.LayoutParams#TYPE_INPUT_METHOD, android.view.WindowManager.LayoutParams#TYPE_INPUT_METHOD_DIALOG, android.view.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, android.view.WindowManager.LayoutParams#TYPE_PRIVATE_PRESENTATION, android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION, android.view.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, android.view.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?: This value may be null.

Return
Context	This value cannot be null.

Exceptions
java.lang.IllegalArgumentException	if the Display is null.

createWindowContext

Added in API level 30

open fun createWindowContext(
    type: Int, 
    options: Bundle?
): Context

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 android.view.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 android.view.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. Note that window context only propagate ComponentCallbacks.onConfigurationChanged(Configuration) callback. ComponentCallbacks.onLowMemory() or other callbacks in ComponentCallbacks2 won't be invoked.

Note that using android.app.Application or android.app.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: Value is android.view.WindowManager.LayoutParams#TYPE_BASE_APPLICATION, android.view.WindowManager.LayoutParams#TYPE_APPLICATION, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_STARTING, android.view.WindowManager.LayoutParams#TYPE_DRAWN_APPLICATION, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_PANEL, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_MEDIA, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_SUB_PANEL, android.view.WindowManager.LayoutParams#TYPE_APPLICATION_ATTACHED_DIALOG, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA_OVERLAY, android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ABOVE_SUB_PANEL, android.view.WindowManager.LayoutParams#TYPE_STATUS_BAR, android.view.WindowManager.LayoutParams#TYPE_SEARCH_BAR, android.view.WindowManager.LayoutParams#TYPE_PHONE, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_ALERT, android.view.WindowManager.LayoutParams.TYPE_KEYGUARD, android.view.WindowManager.LayoutParams#TYPE_TOAST, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_OVERLAY, android.view.WindowManager.LayoutParams#TYPE_PRIORITY_PHONE, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_DIALOG, android.view.WindowManager.LayoutParams#TYPE_KEYGUARD_DIALOG, android.view.WindowManager.LayoutParams#TYPE_SYSTEM_ERROR, android.view.WindowManager.LayoutParams#TYPE_INPUT_METHOD, android.view.WindowManager.LayoutParams#TYPE_INPUT_METHOD_DIALOG, android.view.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, android.view.WindowManager.LayoutParams#TYPE_PRIVATE_PRESENTATION, android.view.WindowManager.LayoutParams.TYPE_VOICE_INTERACTION, android.view.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, android.view.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?: This value may be null.

Return
Context	This value cannot be null.

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

databaseList

Added in API level 1

open fun databaseList(): Array<String!>!

Return
Array<String!>!	Array of strings naming the private databases.

deleteDatabase

Added in API level 1

open fun deleteDatabase(name: String!): Boolean

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

Return
Boolean	true if the database was successfully deleted; else false.

deleteFile

Added in API level 1

open fun deleteFile(name: String!): Boolean

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

Return
Boolean	true if the file was successfully deleted; else false.

deleteSharedPreferences

Added in API level 24

open fun deleteSharedPreferences(name: String!): Boolean

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

Return
Boolean	true if the shared preferences file was successfully deleted; else false.

enforceCallingOrSelfPermission

Added in API level 1

open fun enforceCallingOrSelfPermission(
    permission: String, 
    message: String?
): Unit

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, 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?: This value may be null.

enforceCallingOrSelfUriPermission

Added in API level 1

open fun enforceCallingOrSelfUriPermission(
    uri: Uri!, 
    modeFlags: Int, 
    message: String!
): Unit

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

enforceCallingPermission

Added in API level 1

open fun enforceCallingPermission(
    permission: String, 
    message: String?
): Unit

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 android.os.Binder#getCallingPid and android.os.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 to avoid this protection.

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

enforceCallingUriPermission

Added in API level 1

open fun enforceCallingUriPermission(
    uri: Uri!, 
    modeFlags: Int, 
    message: String!
): Unit

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

enforcePermission

Added in API level 1

open fun enforcePermission(
    permission: String, 
    pid: Int, 
    uid: Int, 
    message: String?
): Unit

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?: This value may be null.

enforceUriPermission

Added in API level 1

open fun enforceUriPermission(
    uri: Uri!, 
    pid: Int, 
    uid: Int, 
    modeFlags: Int, 
    message: String!
): Unit

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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION
message	String!: A message to include in the exception if it is thrown.

enforceUriPermission

Added in API level 1

open fun enforceUriPermission(
    uri: Uri?, 
    readPermission: String?, 
    writePermission: String?, 
    pid: Int, 
    uid: Int, 
    modeFlags: Int, 
    message: String?
): Unit

Enforce both a Uri and normal permission. This allows you to perform both enforcePermission and #enforceUriPermission in one call.

Parameters
uri	Uri?: This value may be null.
readPermission	String?: This value may be null.
writePermission	String?: This value may 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 enforce. Value is either 0 or a combination of android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION
message	String?: This value may be null.

fileList

Added in API level 1

open fun fileList(): Array<String!>!

Return
Array<String!>!	Array of strings naming the private files.

getApplicationContext

Added in API level 1

open fun getApplicationContext(): Context!

getApplicationInfo

Added in API level 4

open fun getApplicationInfo(): ApplicationInfo!

getAssets

Added in API level 1

open fun getAssets(): AssetManager!

Return
AssetManager!	an AssetManager instance for the application's package

getAttributionSource

Added in API level 31

open fun getAttributionSource(): AttributionSource

Return
AttributionSource	This value cannot be null.

getBaseContext

Added in API level 1

open fun getBaseContext(): Context!

Return
Context!	the base context as set by the constructor or setBaseContext

getCacheDir

Added in API level 1

open fun getCacheDir(): File!

Return
File!	The path of the directory holding application cache files.

getClassLoader

Added in API level 1

open fun getClassLoader(): ClassLoader!

getCodeCacheDir

Added in API level 21

open fun getCodeCacheDir(): File!

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

getContentResolver

Added in API level 1

open fun getContentResolver(): ContentResolver!

getDataDir

Added in API level 24

open fun getDataDir(): File!

getDatabasePath

Added in API level 1

open fun getDatabasePath(name: String!): File!

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

Return
File!	An absolute path to the given database.

getDeviceId

Added in API level 34

open fun getDeviceId(): Int

Return
Int	the ID of the device this context is associated with.

getDir

Added in API level 1

open fun getDir(
    name: String!, 
    mode: Int
): File!

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 android.content.Context#MODE_PRIVATE, android.content.Context#MODE_WORLD_READABLE, android.content.Context#MODE_WORLD_WRITEABLE, and android.content.Context#MODE_APPEND

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

getDisplay

Added in API level 30

open fun getDisplay(): Display!

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

Return
Display!	This value may be null.

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

getExternalCacheDir

Added in API level 8

open fun getExternalCacheDir(): File?

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 android.os.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 android.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 android.os.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, android.Manifest.permission#WRITE_EXTERNAL_STORAGE and/or android.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.

Return
File?	This value may be null.

getExternalCacheDirs

Added in API level 19

open fun getExternalCacheDirs(): Array<File!>!

Return
Array<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().

getExternalFilesDir

Added in API level 8

open fun getExternalFilesDir(type: String?): File?

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 android.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 android.os.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, android.Manifest.permission#WRITE_EXTERNAL_STORAGE and/or android.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:

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:

Parameters
type	String?: This value may be null.

Return
File?	This value may be null.

getExternalFilesDirs

Added in API level 19

open fun getExternalFilesDirs(type: String!): Array<File!>!

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: android.os.Environment#DIRECTORY_MUSIC, android.os.Environment#DIRECTORY_PODCASTS, android.os.Environment#DIRECTORY_RINGTONES, android.os.Environment#DIRECTORY_ALARMS, android.os.Environment#DIRECTORY_NOTIFICATIONS, android.os.Environment#DIRECTORY_PICTURES, or android.os.Environment#DIRECTORY_MOVIES.

Return
Array<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).

getExternalMediaDirs

Added in API level 21

open fun getExternalMediaDirs(): Array<File!>!

Return
Array<File!>!	the absolute paths to application-specific directories. Some individual paths may be null if that shared storage is not currently available.

getFileStreamPath

Added in API level 1

open fun getFileStreamPath(name: String!): File!

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

Return
File!	An absolute path to the given file.

getFilesDir

Added in API level 1

open fun getFilesDir(): File!

Return
File!	The path of the directory holding application files.

getMainExecutor

Added in API level 28

open fun getMainExecutor(): Executor!

getMainLooper

Added in API level 1

open fun getMainLooper(): Looper!

Return
Looper!	The main looper.

getNoBackupFilesDir

Added in API level 21

open fun getNoBackupFilesDir(): File!

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

getObbDir

Added in API level 11

open fun getObbDir(): File!

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

getObbDirs

Added in API level 19

open fun getObbDirs(): Array<File!>!

Return
Array<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()

getPackageCodePath

Added in API level 1

open fun getPackageCodePath(): String!

Return
String!	String Path to the code and assets.

getPackageManager

Added in API level 1

open fun getPackageManager(): PackageManager!

getPackageName

Added in API level 1

open fun getPackageName(): String!

getPackageResourcePath

Added in API level 1

open fun getPackageResourcePath(): String!

Return
String!	String Path to the resources.

getParams

Added in API level 31

open fun getParams(): ContextParams?

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

Return
ContextParams?	This value may be null.

getResources

Added in API level 1

open fun getResources(): Resources!

Return
Resources!	a Resources instance for the application's package

getSharedPreferences

Added in API level 1

open fun getSharedPreferences(
    name: String!, 
    mode: Int
): SharedPreferences!

Parameters
name	String!: Desired preferences file.
mode	Int: Operating mode. Value is either 0 or a combination of android.content.Context#MODE_PRIVATE, android.content.Context#MODE_WORLD_READABLE, android.content.Context#MODE_WORLD_WRITEABLE, and android.content.Context#MODE_MULTI_PROCESS

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

getSystemService

Added in API level 1

open fun getSystemService(name: String): Any!

Parameters

name

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

Return
Any!	The service or null if the name does not exist.

getSystemServiceName

Added in API level 23

open fun getSystemServiceName(serviceClass: Class<*>): String?

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

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

getTheme

Added in API level 1

open fun getTheme(): Resources.Theme!

getWallpaper

Added in API level 1

open fun getWallpaper(): Drawable!

Deprecated: Deprecated in Java.

getWallpaperDesiredMinimumHeight

Added in API level 1

open fun getWallpaperDesiredMinimumHeight(): Int

Deprecated: Deprecated in Java.

getWallpaperDesiredMinimumWidth

Added in API level 1

open fun getWallpaperDesiredMinimumWidth(): Int

Deprecated: Deprecated in Java.

grantUriPermission

Added in API level 1

open fun grantUriPermission(
    toPackage: String!, 
    uri: Uri!, 
    modeFlags: Int
): Unit

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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION, android.content.Intent#FLAG_GRANT_PERSISTABLE_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_PREFIX_URI_PERMISSION

isDeviceProtectedStorage

Added in API level 24

open fun isDeviceProtectedStorage(): Boolean

isRestricted

Added in API level 4

open fun isRestricted(): Boolean

Return
Boolean	true if this Context is restricted, false otherwise.

moveDatabaseFrom

Added in API level 24

open fun moveDatabaseFrom(
    sourceContext: Context!, 
    name: String!
): Boolean

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

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

moveSharedPreferencesFrom

Added in API level 24

open fun moveSharedPreferencesFrom(
    sourceContext: Context!, 
    name: String!
): Boolean

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

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

openFileInput

Added in API level 1

open fun openFileInput(name: String!): FileInputStream!

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

Return
FileInputStream!	The resulting FileInputStream.

openFileOutput

Added in API level 1

open fun openFileOutput(
    name: String!, 
    mode: Int
): FileOutputStream!

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 android.content.Context#MODE_PRIVATE, android.content.Context#MODE_WORLD_READABLE, android.content.Context#MODE_WORLD_WRITEABLE, and android.content.Context#MODE_APPEND

Return
FileOutputStream!	The resulting FileOutputStream.

openOrCreateDatabase

Added in API level 1

open fun openOrCreateDatabase(
    name: String!, 
    mode: Int, 
    factory: SQLiteDatabase.CursorFactory!
): SQLiteDatabase!

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 android.content.Context#MODE_PRIVATE, android.content.Context#MODE_WORLD_READABLE, android.content.Context#MODE_WORLD_WRITEABLE, android.content.Context#MODE_ENABLE_WRITE_AHEAD_LOGGING, and android.content.Context#MODE_NO_LOCALIZED_COLLATORS
factory	SQLiteDatabase.CursorFactory!: An optional factory class that is called to instantiate a cursor when query is called.

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

Exceptions
android.database.sqlite.SQLiteException	if the database file could not be opened.

openOrCreateDatabase

Added in API level 11

open fun openOrCreateDatabase(
    name: String!, 
    mode: Int, 
    factory: SQLiteDatabase.CursorFactory!, 
    errorHandler: DatabaseErrorHandler?
): SQLiteDatabase!

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 android.content.Context#MODE_PRIVATE, android.content.Context#MODE_WORLD_READABLE, android.content.Context#MODE_WORLD_WRITEABLE, android.content.Context#MODE_ENABLE_WRITE_AHEAD_LOGGING, and android.content.Context#MODE_NO_LOCALIZED_COLLATORS
factory	SQLiteDatabase.CursorFactory!: An optional factory class that is called to instantiate a cursor when query is called.
errorHandler	DatabaseErrorHandler?: This value may be null.

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

Exceptions
android.database.sqlite.SQLiteException	if the database file could not be opened.

peekWallpaper

Added in API level 1

open fun peekWallpaper(): Drawable!

Deprecated: Deprecated in Java.

registerComponentCallbacks

Added in API level 14

open fun registerComponentCallbacks(callback: ComponentCallbacks!): Unit

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 when appropriate in the future; this will not be removed for you.

After Build.VERSION_CODES.TIRAMISU, the ComponentCallbacks will be registered to the base Context, and can be only used after attachBaseContext(android.content.Context). Users can still call to getApplicationContext().registerComponentCallbacks(ComponentCallbacks) to add ComponentCallbacks to the base application.

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

Exceptions
java.lang.IllegalStateException	if this method calls before attachBaseContext(android.content.Context)

registerDeviceIdChangeListener

Added in API level 34

open fun registerDeviceIdChangeListener(
    executor: Executor, 
    listener: IntConsumer
): Unit

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: 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: This value cannot be null.

registerReceiver

Added in API level 1

open fun registerReceiver(
    receiver: BroadcastReceiver?, 
    filter: IntentFilter!
): Intent?

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 android.os.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 android.os.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 android.os.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, since the lifetime of such a registered BroadcastReceiver is tied to the object that registered it.

Parameters
receiver	BroadcastReceiver?: This value may be null.
filter	IntentFilter!: Selects the Intent broadcasts to be received.

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

registerReceiver

Added in API level 26

open fun registerReceiver(
    receiver: BroadcastReceiver?, 
    filter: IntentFilter!, 
    flags: Int
): Intent?

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 android.os.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 android.os.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?: This value may be null.
filter	IntentFilter!: Selects the Intent broadcasts to be received.
flags	Int: Additional options for the receiver. For apps targeting android.os.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 android.content.Context#RECEIVER_VISIBLE_TO_INSTANT_APPS, android.content.Context#RECEIVER_EXPORTED, android.content.Context#RECEIVER_NOT_EXPORTED, and android.content.Context.RECEIVER_EXPORTED_UNAUDITED

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

registerReceiver

Added in API level 1

open fun registerReceiver(
    receiver: BroadcastReceiver?, 
    filter: IntentFilter!, 
    broadcastPermission: String?, 
    scheduler: Handler?
): Intent?

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 android.os.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 android.os.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 android.os.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?: This value may be null.
filter	IntentFilter!: Selects the Intent broadcasts to be received.
broadcastPermission	String?: This value may be null.
scheduler	Handler?: This value may be null.

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

registerReceiver

Added in API level 26

open fun registerReceiver(
    receiver: BroadcastReceiver?, 
    filter: IntentFilter!, 
    broadcastPermission: String?, 
    scheduler: Handler?, 
    flags: Int
): Intent?

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 android.os.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 android.os.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?: This value may be null.
filter	IntentFilter!: Selects the Intent broadcasts to be received.
broadcastPermission	String?: This value may be null.
scheduler	Handler?: This value may be null.
flags	Int: Additional options for the receiver. For apps targeting android.os.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 android.content.Context#RECEIVER_VISIBLE_TO_INSTANT_APPS, android.content.Context#RECEIVER_EXPORTED, android.content.Context#RECEIVER_NOT_EXPORTED, and android.content.Context.RECEIVER_EXPORTED_UNAUDITED

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

removeStickyBroadcast

Added in API level 1

open fun removeStickyBroadcast(intent: Intent!): Unit

Deprecated: Deprecated in Java.

Parameters
intent	Intent!: The Intent that was previously broadcast.

removeStickyBroadcastAsUser

Added in API level 17

open fun removeStickyBroadcastAsUser(
    intent: Intent!, 
    user: UserHandle!
): Unit

Deprecated: Deprecated in Java.

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

revokeSelfPermissionsOnKill

Added in API level 33

open fun revokeSelfPermissionsOnKill(permissions: MutableCollection<String!>): Unit

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	MutableCollection<String!>: This value cannot be null.

Exceptions
java.lang.IllegalArgumentException	if any of the permissions is not a runtime permission

revokeUriPermission

Added in API level 1

open fun revokeUriPermission(
    uri: Uri!, 
    modeFlags: Int
): Unit

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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

revokeUriPermission

Added in API level 26

open fun revokeUriPermission(
    targetPackage: String!, 
    uri: Uri!, 
    modeFlags: Int
): Unit

Parameters
toPackage	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 android.content.Intent#FLAG_GRANT_READ_URI_PERMISSION, and android.content.Intent#FLAG_GRANT_WRITE_URI_PERMISSION

sendBroadcast

Added in API level 1

open fun sendBroadcast(intent: Intent!): Unit

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

sendBroadcast

Added in API level 1

open fun sendBroadcast(
    intent: Intent!, 
    receiverPermission: String?
): Unit

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?: This value may be null.

sendBroadcast

Added in API level 34

open fun sendBroadcast(
    intent: Intent, 
    receiverPermission: String?, 
    options: Bundle?
): Unit

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: This value cannot be null.
receiverPermission	String?: This value may be null.
options	Bundle?: This value may be null.

sendBroadcastAsUser

Added in API level 17

open fun sendBroadcastAsUser(
    intent: Intent!, 
    user: UserHandle!
): Unit

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

sendBroadcastAsUser

Added in API level 17

open fun sendBroadcastAsUser(
    intent: Intent!, 
    user: UserHandle!, 
    receiverPermission: String?
): Unit

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.

sendOrderedBroadcast

Added in API level 30

open fun sendOrderedBroadcast(
    intent: Intent, 
    initialCode: Int, 
    receiverPermission: String?, 
    receiverAppOp: String?, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialData: String?, 
    initialExtras: Bundle?, 
    options: Bundle?
): Unit

Parameters
intent	Intent: This value cannot be null.
receiverPermission	String?: This value may be null.
receiverAppOp	String?: This value may be null.
resultReceiver	BroadcastReceiver?: This value may be null.
scheduler	Handler?: This value may be null.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.
options	Bundle?: This value may be null.

sendOrderedBroadcast

Added in API level 1

open fun sendOrderedBroadcast(
    intent: Intent!, 
    receiverPermission: String?
): Unit

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?: This value may be null.

sendOrderedBroadcast

Added in API level 1

open fun sendOrderedBroadcast(
    intent: Intent, 
    receiverPermission: String?, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialCode: Int, 
    initialData: String?, 
    initialExtras: Bundle?
): Unit

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?: This value may be null.
resultReceiver	BroadcastReceiver?: This value may be null.
scheduler	Handler?: This value may be null.
initialCode	Int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.

sendOrderedBroadcast

Added in API level 34

open fun sendOrderedBroadcast(
    intent: Intent, 
    receiverPermission: String?, 
    options: Bundle?
): Unit

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: This value cannot be null.
receiverPermission	String?: This value may be null.
options	Bundle?: This value may be null.

sendOrderedBroadcast

Added in API level 34

open fun sendOrderedBroadcast(
    intent: Intent, 
    receiverPermission: String?, 
    options: Bundle?, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialCode: Int, 
    initialData: String?, 
    initialExtras: Bundle?
): Unit

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: This value cannot be null.
receiverPermission	String?: This value may be null.
options	Bundle?: This value may be null.
resultReceiver	BroadcastReceiver?: This value may be null.
scheduler	Handler?: This value may be null.
initialCode	Int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.

sendOrderedBroadcast

Added in API level 30

open fun sendOrderedBroadcast(
    intent: Intent, 
    receiverPermission: String?, 
    receiverAppOp: String?, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialCode: Int, 
    initialData: String?, 
    initialExtras: Bundle?
): Unit

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: This value cannot be null.
receiverPermission	String?: This value may be null.
receiverAppOp	String?: This value may be null.
resultReceiver	BroadcastReceiver?: This value may be null.
scheduler	Handler?: This value may be null.
initialCode	Int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.

sendOrderedBroadcastAsUser

Added in API level 17

open fun sendOrderedBroadcastAsUser(
    intent: Intent!, 
    user: UserHandle!, 
    receiverPermission: String?, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialCode: Int, 
    initialData: String?, 
    initialExtras: Bundle?
): Unit

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?: This value may be null.
resultReceiver	BroadcastReceiver?: This value may be null.
scheduler	Handler?: This value may be null.
initialCode	Int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.

sendStickyBroadcast

Added in API level 1

open fun sendStickyBroadcast(intent: Intent!): Unit

Deprecated: Deprecated in Java.

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.

sendStickyBroadcast

Added in API level 31

open fun sendStickyBroadcast(
    intent: Intent, 
    options: Bundle?
): Unit

Deprecated: 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).

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 android.app.BroadcastOptions. This value may be null.

See Also

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

sendStickyBroadcastAsUser

Added in API level 17

open fun sendStickyBroadcastAsUser(
    intent: Intent!, 
    user: UserHandle!
): Unit

Deprecated: Deprecated in Java.

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.

sendStickyOrderedBroadcast

Added in API level 5

open fun sendStickyOrderedBroadcast(
    intent: Intent!, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialCode: Int, 
    initialData: String?, 
    initialExtras: Bundle?
): Unit

Deprecated: Deprecated in Java.

Version of #sendStickyBroadcast 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 android.Manifest.permission#BROADCAST_STICKY

Parameters
intent	Intent!: The Intent to broadcast; all receivers matching this Intent will receive the broadcast.
resultReceiver	BroadcastReceiver?: This value may be null.
scheduler	Handler?: This value may be null.
initialCode	Int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.

sendStickyOrderedBroadcastAsUser

Added in API level 17

open fun sendStickyOrderedBroadcastAsUser(
    intent: Intent!, 
    user: UserHandle!, 
    resultReceiver: BroadcastReceiver?, 
    scheduler: Handler?, 
    initialCode: Int, 
    initialData: String?, 
    initialExtras: Bundle?
): Unit

Deprecated: Deprecated in Java.

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 android.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?: This value may be null.
scheduler	Handler?: This value may be null.
initialCode	Int: An initial value for the result code. Often Activity.RESULT_OK.
initialData	String?: This value may be null.
initialExtras	Bundle?: This value may be null.

setTheme

Added in API level 1

open fun setTheme(resid: Int): Unit

Parameters
resid	Int: The style resource describing the theme.

setWallpaper

Added in API level 1

open fun setWallpaper(bitmap: Bitmap!): Unit

Deprecated: Deprecated in Java.

setWallpaper

Added in API level 1

open fun setWallpaper(data: InputStream!): Unit

Deprecated: Deprecated in Java.

startActivities

Added in API level 11

open fun startActivities(intents: Array<Intent!>!): Unit

Parameters
intents	Array<Intent!>!: An array of Intents to be started.

Exceptions
android.content.ActivityNotFoundException

startActivities

Added in API level 16

open fun startActivities(
    intents: Array<Intent!>!, 
    options: Bundle?
): Unit

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	Array<Intent!>!: An array of Intents to be started.
options	Bundle?: This value may be null.

Exceptions
android.content.ActivityNotFoundException

startActivity

Added in API level 1

open fun startActivity(intent: Intent!): Unit

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

Exceptions
android.content.ActivityNotFoundException	`

startActivity

Added in API level 16

open fun startActivity(
    intent: Intent!, 
    options: Bundle?
): Unit

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 android.app.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?: This value may be null.

Exceptions
android.content.ActivityNotFoundException

startForegroundService

Added in API level 26

open fun startForegroundService(service: Intent!): ComponentName?

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 android.os.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 android.os.Build.VERSION_CODES#S, apps targeting SDK Version android.os.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.

Return
ComponentName?	This value may be null.

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

startInstrumentation

Added in API level 1

open fun startInstrumentation(
    className: ComponentName, 
    profileFile: String?, 
    arguments: Bundle?
): Boolean

Start executing an android.app.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?: This value may be null.
arguments	Bundle?: This value may be null.

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

startIntentSender

Added in API level 5

open fun startIntentSender(
    intent: IntentSender!, 
    fillInIntent: Intent?, 
    flagsMask: Int, 
    flagsValues: Int, 
    extraFlags: Int
): Unit

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?: This value may be null.
flagsMask	Int: Intent flags in the original IntentSender that you would like to change. Value is either 0 or a combination of android.content.Intent#FLAG_FROM_BACKGROUND, android.content.Intent#FLAG_DEBUG_LOG_RESOLUTION, android.content.Intent#FLAG_EXCLUDE_STOPPED_PACKAGES, android.content.Intent#FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, android.content.Intent#FLAG_ACTIVITY_MATCH_EXTERNAL, android.content.Intent#FLAG_ACTIVITY_NO_HISTORY, android.content.Intent#FLAG_ACTIVITY_SINGLE_TOP, android.content.Intent#FLAG_ACTIVITY_NEW_TASK, android.content.Intent#FLAG_ACTIVITY_MULTIPLE_TASK, android.content.Intent#FLAG_ACTIVITY_CLEAR_TOP, android.content.Intent#FLAG_ACTIVITY_FORWARD_RESULT, android.content.Intent#FLAG_ACTIVITY_PREVIOUS_IS_TOP, android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, android.content.Intent#FLAG_ACTIVITY_BROUGHT_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, android.content.Intent#FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NEW_DOCUMENT, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NO_USER_ACTION, android.content.Intent#FLAG_ACTIVITY_REORDER_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_NO_ANIMATION, android.content.Intent#FLAG_ACTIVITY_CLEAR_TASK, android.content.Intent#FLAG_ACTIVITY_TASK_ON_HOME, android.content.Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS, android.content.Intent#FLAG_ACTIVITY_LAUNCH_ADJACENT, android.content.Intent#FLAG_RECEIVER_REGISTERED_ONLY, android.content.Intent#FLAG_RECEIVER_REPLACE_PENDING, android.content.Intent#FLAG_RECEIVER_FOREGROUND, android.content.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, android.content.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 android.content.Intent#FLAG_FROM_BACKGROUND, android.content.Intent#FLAG_DEBUG_LOG_RESOLUTION, android.content.Intent#FLAG_EXCLUDE_STOPPED_PACKAGES, android.content.Intent#FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, android.content.Intent#FLAG_ACTIVITY_MATCH_EXTERNAL, android.content.Intent#FLAG_ACTIVITY_NO_HISTORY, android.content.Intent#FLAG_ACTIVITY_SINGLE_TOP, android.content.Intent#FLAG_ACTIVITY_NEW_TASK, android.content.Intent#FLAG_ACTIVITY_MULTIPLE_TASK, android.content.Intent#FLAG_ACTIVITY_CLEAR_TOP, android.content.Intent#FLAG_ACTIVITY_FORWARD_RESULT, android.content.Intent#FLAG_ACTIVITY_PREVIOUS_IS_TOP, android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, android.content.Intent#FLAG_ACTIVITY_BROUGHT_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, android.content.Intent#FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NEW_DOCUMENT, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NO_USER_ACTION, android.content.Intent#FLAG_ACTIVITY_REORDER_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_NO_ANIMATION, android.content.Intent#FLAG_ACTIVITY_CLEAR_TASK, android.content.Intent#FLAG_ACTIVITY_TASK_ON_HOME, android.content.Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS, android.content.Intent#FLAG_ACTIVITY_LAUNCH_ADJACENT, android.content.Intent#FLAG_RECEIVER_REGISTERED_ONLY, android.content.Intent#FLAG_RECEIVER_REPLACE_PENDING, android.content.Intent#FLAG_RECEIVER_FOREGROUND, android.content.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, android.content.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.

startIntentSender

Added in API level 16

open fun startIntentSender(
    intent: IntentSender!, 
    fillInIntent: Intent?, 
    flagsMask: Int, 
    flagsValues: Int, 
    extraFlags: Int, 
    options: Bundle?
): Unit

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 android.content.IntentSender#sendIntent on it.

Parameters
intent	IntentSender!: The IntentSender to launch.
fillInIntent	Intent?: This value may be null.
flagsMask	Int: Intent flags in the original IntentSender that you would like to change. Value is either 0 or a combination of android.content.Intent#FLAG_FROM_BACKGROUND, android.content.Intent#FLAG_DEBUG_LOG_RESOLUTION, android.content.Intent#FLAG_EXCLUDE_STOPPED_PACKAGES, android.content.Intent#FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, android.content.Intent#FLAG_ACTIVITY_MATCH_EXTERNAL, android.content.Intent#FLAG_ACTIVITY_NO_HISTORY, android.content.Intent#FLAG_ACTIVITY_SINGLE_TOP, android.content.Intent#FLAG_ACTIVITY_NEW_TASK, android.content.Intent#FLAG_ACTIVITY_MULTIPLE_TASK, android.content.Intent#FLAG_ACTIVITY_CLEAR_TOP, android.content.Intent#FLAG_ACTIVITY_FORWARD_RESULT, android.content.Intent#FLAG_ACTIVITY_PREVIOUS_IS_TOP, android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, android.content.Intent#FLAG_ACTIVITY_BROUGHT_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, android.content.Intent#FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NEW_DOCUMENT, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NO_USER_ACTION, android.content.Intent#FLAG_ACTIVITY_REORDER_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_NO_ANIMATION, android.content.Intent#FLAG_ACTIVITY_CLEAR_TASK, android.content.Intent#FLAG_ACTIVITY_TASK_ON_HOME, android.content.Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS, android.content.Intent#FLAG_ACTIVITY_LAUNCH_ADJACENT, android.content.Intent#FLAG_RECEIVER_REGISTERED_ONLY, android.content.Intent#FLAG_RECEIVER_REPLACE_PENDING, android.content.Intent#FLAG_RECEIVER_FOREGROUND, android.content.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, android.content.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 android.content.Intent#FLAG_FROM_BACKGROUND, android.content.Intent#FLAG_DEBUG_LOG_RESOLUTION, android.content.Intent#FLAG_EXCLUDE_STOPPED_PACKAGES, android.content.Intent#FLAG_INCLUDE_STOPPED_PACKAGES, android.content.Intent.FLAG_DEBUG_TRIAGED_MISSING, android.content.Intent.FLAG_IGNORE_EPHEMERAL, android.content.Intent#FLAG_ACTIVITY_MATCH_EXTERNAL, android.content.Intent#FLAG_ACTIVITY_NO_HISTORY, android.content.Intent#FLAG_ACTIVITY_SINGLE_TOP, android.content.Intent#FLAG_ACTIVITY_NEW_TASK, android.content.Intent#FLAG_ACTIVITY_MULTIPLE_TASK, android.content.Intent#FLAG_ACTIVITY_CLEAR_TOP, android.content.Intent#FLAG_ACTIVITY_FORWARD_RESULT, android.content.Intent#FLAG_ACTIVITY_PREVIOUS_IS_TOP, android.content.Intent#FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS, android.content.Intent#FLAG_ACTIVITY_BROUGHT_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_RESET_TASK_IF_NEEDED, android.content.Intent#FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NEW_DOCUMENT, android.content.Intent#FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, android.content.Intent#FLAG_ACTIVITY_NO_USER_ACTION, android.content.Intent#FLAG_ACTIVITY_REORDER_TO_FRONT, android.content.Intent#FLAG_ACTIVITY_NO_ANIMATION, android.content.Intent#FLAG_ACTIVITY_CLEAR_TASK, android.content.Intent#FLAG_ACTIVITY_TASK_ON_HOME, android.content.Intent#FLAG_ACTIVITY_RETAIN_IN_RECENTS, android.content.Intent#FLAG_ACTIVITY_LAUNCH_ADJACENT, android.content.Intent#FLAG_RECEIVER_REGISTERED_ONLY, android.content.Intent#FLAG_RECEIVER_REPLACE_PENDING, android.content.Intent#FLAG_RECEIVER_FOREGROUND, android.content.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, android.content.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?: This value may be null.

startService

Added in API level 1

open fun startService(service: Intent!): ComponentName?

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 android.app.Service#onStartCommand 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: it requires the service to remain running until stopService 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 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 #bindService for high frequency calls.

Beginning with SDK Version android.os.Build.VERSION_CODES#O, apps targeting SDK Version android.os.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 android.os.Build.VERSION_CODES#S, apps targeting SDK Version android.os.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.

Return
ComponentName?	This value may be null.

Exceptions
java.lang.SecurityException	If the caller does not have permission to access the service or the service can not be found.
java.lang.IllegalStateException	Before Android android.os.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.
android.app.BackgroundServiceStartNotAllowedException	On Android android.os.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), android.app.BackgroundServiceStartNotAllowedException is thrown. This exception extends IllegalStateException, so apps can use catch (IllegalStateException) to catch both.

stopService

Added in API level 1

open fun stopService(name: Intent!): Boolean

Parameters
service	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.

Return
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.

Exceptions
java.lang.SecurityException	If the caller does not have permission to access the service or the service can not be found.
java.lang.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).

unbindService

Added in API level 1

open fun unbindService(conn: ServiceConnection): Unit

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

unregisterComponentCallbacks

Added in API level 14

open fun unregisterComponentCallbacks(callback: ComponentCallbacks!): Unit

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

After Build.VERSION_CODES.TIRAMISU, the ComponentCallbacks will be unregistered to the base Context, and can be only used after attachBaseContext(android.content.Context)

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

Exceptions
java.lang.IllegalStateException	if this method calls before attachBaseContext(android.content.Context)

unregisterDeviceIdChangeListener

Added in API level 34

open fun unregisterDeviceIdChangeListener(listener: IntConsumer): Unit

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

Parameters
listener	IntConsumer: This value cannot be null.

unregisterReceiver

Added in API level 1

open fun unregisterReceiver(receiver: BroadcastReceiver!): Unit

Parameters
receiver	BroadcastReceiver!: The BroadcastReceiver to unregister.

Exceptions
java.lang.IllegalArgumentException	if the receiver was not previously registered or already unregistered.

updateServiceGroup

Added in API level 29

open fun updateServiceGroup(
    conn: ServiceConnection, 
    group: Int, 
    importance: Int
): Unit

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.

Protected methods

attachBaseContext

Added in API level 1

protected open fun attachBaseContext(base: Context!): Unit

Set the base context for this ContextWrapper. All calls will then be delegated to the base context. Throws IllegalStateException if a base context has already been set.

Parameters
base	Context!: The new base context for this wrapper.