Added in API level 3

InputMethodService

Kotlin |Java

public class InputMethodService
extends AbstractInputMethodService

java.lang.Object
↳	android.content.Context
	↳	android.content.ContextWrapper
		↳	android.app.Service
			↳	android.inputmethodservice.AbstractInputMethodService
				↳	android.inputmethodservice.InputMethodService

InputMethodService provides a standard implementation of an InputMethod, which final implementations can derive from and customize. See the base class AbstractInputMethodService and the InputMethod interface for more information on the basics of writing input methods.

In addition to the normal Service lifecycle methods, this class introduces some new specific callbacks that most subclasses will want to make use of:

onInitializeInterface() for user-interface initialization, in particular to deal with configuration changes while the service is running.
onBindInput() to find out about switching to a new client.
onStartInput(EditorInfo, boolean) to deal with an input session starting with the client.
onCreateInputView(), onCreateCandidatesView(), and onCreateExtractTextView() for non-demand generation of the UI.
onStartInputView(android.view.inputmethod.EditorInfo, boolean) to deal with input starting within the input area of the IME.

An input method has significant discretion in how it goes about its work: the InputMethodService provides a basic framework for standard UI elements (input view, candidates view, and running in fullscreen mode), but it is up to a particular implementor to decide how to use them. For example, one input method could implement an input area with a keyboard, another could allow the user to draw text, while a third could have no input area (and thus not be visible to the user) but instead listen to audio and perform text to speech conversion.

In the implementation provided here, all of these elements are placed together in a single window managed by the InputMethodService. It will execute callbacks as it needs information about them, and provides APIs for programmatic control over them. They layout of these elements is explicitly defined:

The soft input view, if available, is placed at the bottom of the screen.
The candidates view, if currently shown, is placed above the soft input view.
If not running fullscreen, the application is moved or resized to be above these views; if running fullscreen, the window will completely cover the application and its top part will contain the extract text of what is currently being edited by the application.

Soft Input View

Central to most input methods is the soft input view. This is where most user interaction occurs: pressing on soft keys, drawing characters, or however else your input method wants to generate text. Most implementations will simply have their own view doing all of this work, and return a new instance of it when onCreateInputView() is called. At that point, as long as the input view is visible, you will see user interaction in that view and can call back on the InputMethodService to interact with the application as appropriate.

There are some situations where you want to decide whether or not your soft input view should be shown to the user. This is done by implementing the onEvaluateInputViewShown() to return true or false based on whether it should be shown in the current environment. If any of your state has changed that may impact this, call updateInputViewShown() to have it re-evaluated. The default implementation always shows the input view unless there is a hard keyboard available, which is the appropriate behavior for most input methods.

Candidates View

Often while the user is generating raw text, an input method wants to provide them with a list of possible interpretations of that text that can be selected for use. This is accomplished with the candidates view, and like the soft input view you implement onCreateCandidatesView() to instantiate your own view implementing your candidates UI.

Management of the candidates view is a little different than the input view, because the candidates view tends to be more transient, being shown only when there are possible candidates for the current text being entered by the user. To control whether the candidates view is shown, you use setCandidatesViewShown(boolean). Note that because the candidate view tends to be shown and hidden a lot, it does not impact the application UI in the same way as the soft input view: it will never cause application windows to resize, only cause them to be panned if needed for the user to see the current focus.

Fullscreen Mode

Sometimes your input method UI is too large to integrate with the application UI, so you just want to take over the screen. This is accomplished by switching to full-screen mode, causing the input method window to fill the entire screen and add its own "extracted text" editor showing the user the text that is being typed. Unlike the other UI elements, there is a standard implementation for the extract editor that you should not need to change. The editor is placed at the top of the IME, above the input and candidates views.

Similar to the input view, you control whether the IME is running in fullscreen mode by implementing onEvaluateFullscreenMode() to return true or false based on whether it should be fullscreen in the current environment. If any of your state has changed that may impact this, call updateFullscreenMode() to have it re-evaluated. The default implementation selects fullscreen mode when the screen is in a landscape orientation, which is appropriate behavior for most input methods that have a significant input area.

When in fullscreen mode, you have some special requirements because the user can not see the application UI. In particular, you should implement onDisplayCompletions(android.view.inputmethod.CompletionInfo[]) to show completions generated by your application, typically in your candidates view like you would normally show candidates.

Generating Text

The key part of an IME is of course generating text for the application. This is done through calls to the InputConnection interface to the application, which can be retrieved from getCurrentInputConnection(). This interface allows you to generate raw key events or, if the target supports it, directly edit in strings of candidates and committed text.

Information about what the target is expected and supports can be found through the EditorInfo class, which is retrieved with getCurrentInputEditorInfo() method. The most important part of this is EditorInfo.inputType; in particular, if this is EditorInfo.TYPE_NULL, then the target does not support complex edits and you need to only deliver raw key events to it. An input method will also want to look at other values here, to for example detect password mode, auto complete text views, phone number entry, etc.

When the user switches between input targets, you will receive calls to onFinishInput() and onStartInput(android.view.inputmethod.EditorInfo, boolean). You can use these to reset and initialize your input state for the current target. For example, you will often want to clear any input state, and update a soft keyboard to be appropriate for the new inputType.

Summary

Nested classes
`class`	`InputMethodService.InputMethodImpl` Concrete implementation of `AbstractInputMethodService.AbstractInputMethodImpl` that provides all of the standard behavior for an input method.
`class`	`InputMethodService.InputMethodSessionImpl` Concrete implementation of `AbstractInputMethodService.AbstractInputMethodSessionImpl` that provides all of the standard behavior for an input method session.
`class`	`InputMethodService.Insets` Information about where interesting parts of the input method UI appear.

XML attributes
`android:imeExtractEnterAnimation`	Animation to use when showing the fullscreen extract UI after it had previously been hidden.
`android:imeExtractExitAnimation`	Animation to use when hiding the fullscreen extract UI after it had previously been shown.
`android:imeFullscreenBackground`	Background to use for entire input method when it is being shown in fullscreen mode with the extract view, to ensure that it completely covers the application.

Constants
`int`	`BACK_DISPOSITION_ADJUST_NOTHING` Asks the system to not adjust the back button affordance even when the software keyboard is shown.
`int`	`BACK_DISPOSITION_DEFAULT` Allows the system to optimize the back button affordance based on the presence of software keyboard.
`int`	`BACK_DISPOSITION_WILL_DISMISS` This constant was deprecated in API level 28. on `Build.VERSION_CODES.P` and later devices, this flag is handled as a synonym of `BACK_DISPOSITION_DEFAULT`. On `Build.VERSION_CODES.O_MR1` and prior devices, expected behavior of this mode had not been well defined. In AOSP implementation running on devices that have navigation bar, specifying this flag could change the software back button to "Dismiss" icon no matter whether the software keyboard is shown or not, but there would be no easy way to restore the icon state even after IME lost the connection to the application. To avoid user confusions, do not specify this mode anyway
`int`	`BACK_DISPOSITION_WILL_NOT_DISMISS` This constant was deprecated in API level 28. on `Build.VERSION_CODES.P` and later devices, this flag is handled as a synonym of `BACK_DISPOSITION_DEFAULT`. On `Build.VERSION_CODES.O_MR1` and prior devices, expected behavior of this mode had not been well defined. Most likely the end result would be the same as `BACK_DISPOSITION_DEFAULT`. Either way it is not recommended to use this mode

Inherited constants

From class android.app.Service

`int`	`START_CONTINUATION_MASK` Bits returned by `onStartCommand(Intent, int, int)` describing how to continue the service if it is killed.
`int`	`START_FLAG_REDELIVERY` This flag is set in `onStartCommand(Intent, int, int)` if the Intent is a re-delivery of a previously delivered intent, because the service had previously returned `START_REDELIVER_INTENT` but had been killed before calling `stopSelf(int)` for that Intent.
`int`	`START_FLAG_RETRY` This flag is set in `onStartCommand(Intent, int, int)` if the Intent is a retry because the original attempt never got to or returned from `onStartCommand(android.content.Intent, int, int)`.
`int`	`START_NOT_STICKY` Constant to return from `onStartCommand(Intent, int, int)`: if this service's process is killed while it is started (after returning from `onStartCommand(Intent, int, int)`), and there are no new start intents to deliver to it, then take the service out of the started state and don't recreate until a future explicit call to `Context.startService(Intent)`.
`int`	`START_REDELIVER_INTENT` Constant to return from `onStartCommand(Intent, int, int)`: if this service's process is killed while it is started (after returning from `onStartCommand(Intent, int, int)`), then it will be scheduled for a restart and the last delivered Intent re-delivered to it again via `onStartCommand(Intent, int, int)`.
`int`	`START_STICKY` Constant to return from `onStartCommand(Intent, int, int)`: if this service's process is killed while it is started (after returning from `onStartCommand(Intent, int, int)`), then leave it in the started state but don't retain this delivered intent.
`int`	`START_STICKY_COMPATIBILITY` Constant to return from `onStartCommand(Intent, int, int)`: compatibility version of `START_STICKY` that does not guarantee that `onStartCommand(Intent, int, int)` will be called again after being killed.
`int`	`STOP_FOREGROUND_DETACH` Selector for `stopForeground(int)`: if set, the notification previously supplied to `startForeground(int, Notification)` will be detached from the service's lifecycle.
`int`	`STOP_FOREGROUND_LEGACY` This constant was deprecated in API level 33. Use `STOP_FOREGROUND_DETACH` instead. The legacy behavior was inconsistent, leading to bugs around unpredictable results.
`int`	`STOP_FOREGROUND_REMOVE` Selector for `stopForeground(int)`: if supplied, the notification previously supplied to `startForeground(int, Notification)` will be cancelled and removed from display.

From class android.content.Context

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

From interface android.content.ComponentCallbacks2

`int`	`TRIM_MEMORY_BACKGROUND` Level for `onTrimMemory(int)`: the process has gone on to the LRU list.
`int`	`TRIM_MEMORY_COMPLETE` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_MODERATE` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_RUNNING_CRITICAL` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_RUNNING_LOW` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_RUNNING_MODERATE` This constant was deprecated in API level 35. Apps are not notified of this level since API level 34
`int`	`TRIM_MEMORY_UI_HIDDEN` Level for `onTrimMemory(int)`: the process had been showing a user interface, and is no longer doing so.

Public constructors
`InputMethodService()`

Public methods
`boolean`	`enableHardwareAcceleration()` This method was deprecated in API level 21. Starting in API 21, hardware acceleration is always enabled on capable devices
`final void`	`finishConnectionlessStylusHandwriting(CharSequence text)` Finishes the current connectionless stylus handwriting session and delivers the result.
`final void`	`finishStylusHandwriting()` Finish the current stylus handwriting session.
`int`	`getBackDisposition()` Retrieves the current disposition mode that indicates the expected back button affordance.
`int`	`getCandidatesHiddenVisibility()` Returns the visibility mode (either `View.INVISIBLE` or `View.GONE`) of the candidates view when it is not shown.
`InputBinding`	`getCurrentInputBinding()` Return the currently active InputBinding for the input method, or null if there is none.
`InputConnection`	`getCurrentInputConnection()` Retrieve the currently active InputConnection that is bound to the input method, or null if there is none.
`EditorInfo`	`getCurrentInputEditorInfo()`
`boolean`	`getCurrentInputStarted()`
`int`	`getInputMethodWindowRecommendedHeight()` This method was deprecated in API level 29. the actual behavior of this method has never been well defined. You cannot use this method in a reliable and predictable way
`LayoutInflater`	`getLayoutInflater()`
`int`	`getMaxWidth()` Return the maximum width, in pixels, available the input method.
`static final Duration`	`getStylusHandwritingIdleTimeoutMax()` Returns the maximum stylus handwriting session idle-timeout for use with `setStylusHandwritingSessionTimeout(java.time.Duration)`.
`final Duration`	`getStylusHandwritingSessionTimeout()` Returns the duration after which an ongoing stylus handwriting session that hasn't received new `MotionEvent`s will time out and `finishStylusHandwriting()` will be called.
`final Window`	`getStylusHandwritingWindow()` Returns the stylus handwriting inking window.
`Object`	`getSystemService(String name)` Return the handle to a system-level service by name.
`CharSequence`	`getTextForImeAction(int imeOptions)` Return text that can be used as a button label for the given `EditorInfo.imeOptions`.
`Dialog`	`getWindow()`
`void`	`hideStatusIcon()`
`void`	`hideWindow()`
`boolean`	`isExtractViewShown()` Return whether the fullscreen extract view is shown.
`boolean`	`isFullscreenMode()` Return whether the input method is currently running in fullscreen mode.
`boolean`	`isInputViewShown()` Return whether the soft input view is currently shown to the user.
`boolean`	`isShowInputRequested()` Returns true if we have been asked to show our input view.
`void`	`onAppPrivateCommand(String action, Bundle data)` Not implemented in this class.
`void`	`onBindInput()` Called when a new client has bound to the input method.
`void`	`onComputeInsets(InputMethodService.Insets outInsets)` Compute the interesting insets into your UI.
`void`	`onConfigurationChanged(Configuration newConfig)` Take care of handling configuration changes.
`void`	`onConfigureWindow(Window win, boolean isFullscreen, boolean isCandidatesOnly)` Update the given window's parameters for the given mode.
`void`	`onCreate()` Called by the system when the service is first created.
`View`	`onCreateCandidatesView()` Create and return the view hierarchy used to show candidates.
`View`	`onCreateExtractTextView()` Called by the framework to create the layout for showing extracted text.
`InlineSuggestionsRequest`	`onCreateInlineSuggestionsRequest(Bundle uiExtras)` Called when Autofill is requesting an `InlineSuggestionsRequest` from the IME.
`AbstractInputMethodService.AbstractInputMethodImpl`	`onCreateInputMethodInterface()` This method is deprecated. Overriding or calling this method is strongly discouraged. A future version of Android will remove the ability to use this method. Use the callbacks on `InputMethodService` as `InputMethodService.onBindInput()`, `InputMethodService.onUnbindInput()`, `InputMethodService.onWindowShown()`, `InputMethodService.onWindowHidden()`, etc.
`AbstractInputMethodService.AbstractInputMethodSessionImpl`	`onCreateInputMethodSessionInterface()` This method is deprecated. Overriding or calling this method is strongly discouraged. Most methods in `InputMethodSessionImpl` have corresponding callbacks. Use `InputMethodService.onFinishInput()`, `InputMethodService.onDisplayCompletions(CompletionInfo[])`, `InputMethodService.onUpdateExtractedText(int, ExtractedText)`, `InputMethodService.onUpdateSelection(int, int, int, int, int, int)` instead.
`View`	`onCreateInputView()` Create and return the view hierarchy used for the input area (such as a soft keyboard).
`void`	`onCustomImeSwitcherButtonRequestedVisible(boolean visible)` Called when the requested visibility of a custom IME Switcher button changes.
`void`	`onDestroy()` Called by the system to notify a Service that it is no longer used and is being removed. If you override this method you must call through to the superclass implementation.
`void`	`onDisplayCompletions(CompletionInfo[] completions)` Called when the application has reported auto-completion candidates that it would like to have the input method displayed.
`boolean`	`onEvaluateFullscreenMode()` Override this to control when the input method should run in fullscreen mode.
`boolean`	`onEvaluateInputViewShown()` Override this to control when the soft input area should be shown to the user.
`boolean`	`onExtractTextContextMenuItem(int id)` This is called when the user has selected a context menu item from the extracted text view, when running in fullscreen mode.
`void`	`onExtractedCursorMovement(int dx, int dy)` This is called when the user has performed a cursor movement in the extracted text view, when it is running in fullscreen mode.
`void`	`onExtractedSelectionChanged(int start, int end)` This is called when the user has moved the cursor in the extracted text view, when running in fullsreen mode.
`void`	`onExtractedTextClicked()` This is called when the user has clicked on the extracted text view, when running in fullscreen mode.
`void`	`onExtractingInputChanged(EditorInfo ei)` This is called when, while currently displayed in extract mode, the current input target changes.
`void`	`onFinishCandidatesView(boolean finishingInput)` Called when the candidates view is being hidden from the user.
`void`	`onFinishInput()` Called to inform the input method that text input has finished in the last editor.
`void`	`onFinishInputView(boolean finishingInput)` Called when the input view is being hidden from the user.
`void`	`onFinishStylusHandwriting()` Called when the current stylus handwriting session was finished (either by the system or via `finishStylusHandwriting()`.
`boolean`	`onGenericMotionEvent(MotionEvent event)` Override this to intercept generic motion events before they are processed by the application.
`void`	`onInitializeInterface()` This is a hook that subclasses can use to perform initialization of their interface.
`boolean`	`onInlineSuggestionsResponse(InlineSuggestionsResponse response)` Called when Autofill responds back with `InlineSuggestionsResponse` containing inline suggestions.
`boolean`	`onKeyDown(int keyCode, KeyEvent event)` Called back when a `KeyEvent` is forwarded from the target application.
`boolean`	`onKeyLongPress(int keyCode, KeyEvent event)` Default implementation of `KeyEvent.Callback.onKeyLongPress()`: always returns false (doesn't handle the event).
`boolean`	`onKeyMultiple(int keyCode, int count, KeyEvent event)` Override this to intercept special key multiple events before they are processed by the application.
`boolean`	`onKeyUp(int keyCode, KeyEvent event)` Override this to intercept key up events before they are processed by the application.
`void`	`onPrepareStylusHandwriting()` Called to prepare stylus handwriting.
`boolean`	`onShouldVerifyKeyEvent(KeyEvent keyEvent)` Received by the IME before dispatch to `onKeyDown(int, android.view.KeyEvent)` to let the system know if the `KeyEvent` needs to be verified that it originated from the system.
`boolean`	`onShowInputRequested(int flags, boolean configChange)` The system has decided that it may be time to show your input method.
`void`	`onStartCandidatesView(EditorInfo editorInfo, boolean restarting)` Called when only the candidates view has been shown for showing processing as the user enters text through a hard keyboard.
`boolean`	`onStartConnectionlessStylusHandwriting(int inputType, CursorAnchorInfo cursorAnchorInfo)` Called when an app requests to start a connectionless stylus handwriting session using one of `InputMethodManager.startConnectionlessStylusHandwriting(View, CursorAnchorInfo, Executor, ConnectionlessHandwritingCallback)`, `InputMethodManager.startConnectionlessStylusHandwritingForDelegation(android.view.View, android.view.inputmethod.CursorAnchorInfo, java.util.concurrent.Executor, android.view.inputmethod.ConnectionlessHandwritingCallback)`, or `InputMethodManager.startConnectionlessStylusHandwritingForDelegation(android.view.View, android.view.inputmethod.CursorAnchorInfo, java.lang.String, java.util.concurrent.Executor, android.view.inputmethod.ConnectionlessHandwritingCallback)`.
`void`	`onStartInput(EditorInfo attribute, boolean restarting)` Called to inform the input method that text input has started in an editor.
`void`	`onStartInputView(EditorInfo editorInfo, boolean restarting)` Called when the input view is being shown and input has started on a new editor.
`boolean`	`onStartStylusHandwriting()` Called when an app requests stylus handwriting `InputMethodManager.startStylusHandwriting(View)`.
`void`	`onStylusHandwritingMotionEvent(MotionEvent motionEvent)` Called after `onStartStylusHandwriting()` returns `true` for every Stylus `MotionEvent`.
`boolean`	`onTrackballEvent(MotionEvent event)` Override this to intercept trackball motion events before they are processed by the application.
`void`	`onUnbindInput()` Called when the previous bound client is no longer associated with the input method.
`void`	`onUpdateCursor(Rect newCursor)` This method was deprecated in API level 21. Use `onUpdateCursorAnchorInfo(android.view.inputmethod.CursorAnchorInfo)` instead.
`void`	`onUpdateCursorAnchorInfo(CursorAnchorInfo cursorAnchorInfo)` Called when the application has reported a new location of its text insertion point and characters in the composition string.
`void`	`onUpdateEditorToolType(int toolType)` Called when the user tapped or clicked an editor.
`void`	`onUpdateExtractedText(int token, ExtractedText text)` Called when the application has reported new extracted text to be shown due to changes in its current text state.
`void`	`onUpdateExtractingViews(EditorInfo ei)` Called when the fullscreen-mode extracting editor info has changed, to update the state of its UI such as the action buttons shown.
`void`	`onUpdateExtractingVisibility(EditorInfo ei)` Called when the fullscreen-mode extracting editor info has changed, to determine whether the extracting (extract text and candidates) portion of the UI should be shown.
`void`	`onUpdateSelection(int oldSelStart, int oldSelEnd, int newSelStart, int newSelEnd, int candidatesStart, int candidatesEnd)` Called when the application has reported a new selection region of the text.
`void`	`onViewClicked(boolean focusChanged)` This method was deprecated in API level 29. The method may not be called for composite `View` that works as a giant "Canvas", which can host its own UI hierarchy and sub focus state. `WebView` is a good example. Application / IME developers should not rely on this method. If your goal is just being notified when an on-going input is interrupted, simply monitor `onFinishInput()`. If your goal is to know what `MotionEvent.getToolType(int)` clicked on editor, use `onUpdateEditorToolType(int)` instead.
`void`	`onWindowHidden()` Called when the input method window has been hidden from the user, after previously being visible.
`void`	`onWindowShown()` Called immediately before the input method window is shown to the user.
`void`	`requestHideSelf(int flags)` Close this input method's soft input area, removing it from the display.
`final void`	`requestShowSelf(int flags)` Show the input method's soft input area, so the user sees the input method window and can interact with it.
`boolean`	`sendDefaultEditorAction(boolean fromEnterKey)` Ask the input target to execute its default action via `InputConnection.performEditorAction()`.
`void`	`sendDownUpKeyEvents(int keyEventCode)` Send the given key event code (as defined by `KeyEvent`) to the current input connection is a key down + key up event pair.
`void`	`sendKeyChar(char charCode)` Send the given UTF-16 character to the current input connection.
`void`	`setBackDisposition(int disposition)` Sets the disposition mode that indicates the expected affordance for the back button.
`void`	`setCandidatesView(View view)` Replaces the current candidates view with a new one.
`void`	`setCandidatesViewShown(boolean shown)` Controls the visibility of the candidates display area.
`void`	`setExtractView(View view)`
`void`	`setExtractViewShown(boolean shown)` Controls the visibility of the extracted text area.
`void`	`setInputView(View view)` Replaces the current input view with a new one.
`final void`	`setStylusHandwritingRegion(Region handwritingRegion)` Sets a new stylus handwriting region as user continues to write on an editor on screen.
`final void`	`setStylusHandwritingSessionTimeout(Duration duration)` Sets the duration after which an ongoing stylus handwriting session that hasn't received new `MotionEvent`s will time out and `finishStylusHandwriting()` will be called.
`void`	`setTheme(int theme)` You can call this to customize the theme used by your IME's window.
`final boolean`	`shouldOfferSwitchingToNextInputMethod()` Returns true if the current IME needs to offer the users ways to switch to a next input method (e.g. a globe key.).
`void`	`showStatusIcon(int iconResId)`
`void`	`showWindow(boolean showInput)`
`void`	`switchInputMethod(String id)` Force switch to a new input method, as identified by `id`.
`final void`	`switchInputMethod(String id, InputMethodSubtype subtype)` Force switch to a new input method, as identified by `id`.
`final boolean`	`switchToNextInputMethod(boolean onlyCurrentIme)` Force switch to the next input method and subtype.
`final boolean`	`switchToPreviousInputMethod()` Force switch to the last used input method and subtype.
`void`	`updateFullscreenMode()` Re-evaluate whether the input method should be running in fullscreen mode, and update its UI if this has changed since the last time it was evaluated.
`void`	`updateInputViewShown()` Re-evaluate whether the soft input area should currently be shown, and update its UI if this has changed since the last time it was evaluated.

Protected methods
`void`	`dump(FileDescriptor fd, PrintWriter fout, String[] args)` Performs a dump of the InputMethodService's internal state.
`void`	`onCurrentInputMethodSubtypeChanged(InputMethodSubtype newSubtype)` Called when the subtype was changed.

Inherited methods

From class


        
          android.inputmethodservice.AbstractInputMethodService

`void`	`dump(FileDescriptor fd, PrintWriter fout, String[] args)` Implement this to handle `Binder.dump()` calls on your input method.
`KeyEvent.DispatcherState`	`getKeyDispatcherState()` Return the global `KeyEvent.DispatcherState` for used for processing events from the target application.
`Object`	`getSystemService(String name)` Return the handle to a system-level service by name.
`final IBinder`	`onBind(Intent intent)` Return the communication channel to the service.
`void`	`onConfigurationChanged(Configuration configuration)` Called by the system when the device configuration changes while your component is running.
`abstract AbstractInputMethodService.AbstractInputMethodImpl`	`onCreateInputMethodInterface()` Called by the framework during initialization, when the InputMethod interface for this service needs to be created.
`abstract AbstractInputMethodService.AbstractInputMethodSessionImpl`	`onCreateInputMethodSessionInterface()` Called by the framework when a new InputMethodSession interface is needed for a new client of the input method.
`void`	`onDestroy()` Called by the system to notify a Service that it is no longer used and is being removed. If you override this method you must call through to the superclass implementation.
`boolean`	`onGenericMotionEvent(MotionEvent event)` Implement this to handle generic motion events on your input method.
`void`	`onLowMemory()` Override `Service`'s empty implementation and listen to `ActivityThread` for low memory and trim memory events.
`boolean`	`onShouldVerifyKeyEvent(KeyEvent event)`
`boolean`	`onTrackballEvent(MotionEvent event)` Implement this to handle trackball events on your input method.
`void`	`onTrimMemory(int level)` Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process.
`void`	`registerComponentCallbacks(ComponentCallbacks callback)` Add a new `ComponentCallbacks` to the base application of the Context, which will be called at the same times as the ComponentCallbacks methods of activities and other components are called.
`void`	`unregisterComponentCallbacks(ComponentCallbacks callback)` Remove a `ComponentCallbacks` object that was previously registered with `registerComponentCallbacks(android.content.ComponentCallbacks)`.

From class


        
          android.app.Service

`void`	`attachBaseContext(Context newBase)` Set the base context for this ContextWrapper.
`void`	`dump(FileDescriptor fd, PrintWriter writer, String[] args)` Print the Service's state into the given stream.
`final Application`	`getApplication()` Return the application that owns this service.
`final int`	`getForegroundServiceType()` If the service has become a foreground service by calling `startForeground(int, android.app.Notification)` or `startForeground(int, android.app.Notification, int)`, `getForegroundServiceType()` returns the current foreground service type.
`abstract IBinder`	`onBind(Intent intent)` Return the communication channel to the service.
`void`	`onConfigurationChanged(Configuration newConfig)` Called by the system when the device configuration changes while your component is running.
`void`	`onCreate()` Called by the system when the service is first created.
`void`	`onDestroy()` Called by the system to notify a Service that it is no longer used and is being removed.
`void`	`onLowMemory()` This is called when the overall system is running low on memory, and actively running processes should trim their memory usage.
`void`	`onRebind(Intent intent)` Called when new clients have connected to the service, after it had previously been notified that all had disconnected in its `onUnbind(Intent)`.
`void`	`onStart(Intent intent, int startId)` This method was deprecated in API level 15. Implement `onStartCommand(android.content.Intent, int, int)` instead.
`int`	`onStartCommand(Intent intent, int flags, int startId)` Called by the system every time a client explicitly starts the service by calling `Context.startService(Intent)`, providing the arguments it supplied and a unique integer token representing the start request.
`void`	`onTaskRemoved(Intent rootIntent)` This is called if the service is currently running and the user has removed a task that comes from the service's application.
`void`	`onTimeout(int startId, int fgsType)` Callback called when a particular foreground service type has timed out.
`void`	`onTimeout(int startId)` Callback called on timeout for `ServiceInfo.FOREGROUND_SERVICE_TYPE_SHORT_SERVICE`.
`void`	`onTrimMemory(int level)` Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process.
`boolean`	`onUnbind(Intent intent)` Called when all clients have disconnected from a particular interface published by the service.
`final void`	`startForeground(int id, Notification notification)` If your service is started (running through `Context.startService(Intent)`), then also make this service run in the foreground, supplying the ongoing notification to be shown to the user while in this state.
`final void`	`startForeground(int id, Notification notification, int foregroundServiceType)` An overloaded version of `startForeground(int, android.app.Notification)` with additional foregroundServiceType parameter.
`final void`	`stopForeground(int notificationBehavior)` Remove this service from foreground state, allowing it to be killed if more memory is needed.
`final void`	`stopForeground(boolean removeNotification)` This method was deprecated in API level 33. call `stopForeground(int)` and pass either `STOP_FOREGROUND_REMOVE` or `STOP_FOREGROUND_DETACH` explicitly instead.
`final void`	`stopSelf()` Stop the service, if it was previously started.
`final void`	`stopSelf(int startId)` Old version of `stopSelfResult(int)` that doesn't return a result.
`final boolean`	`stopSelfResult(int startId)` Stop the service if the most recent time it was started was `startId`.

From class


        
          android.content.ContextWrapper

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

From class


        
          android.content.Context

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

From class


        
          java.lang.Object

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

From interface


        
          android.view.KeyEvent.Callback

`abstract boolean`	`onKeyDown(int keyCode, KeyEvent event)` Called when a key down event has occurred.
`abstract boolean`	`onKeyLongPress(int keyCode, KeyEvent event)` Called when a long press has occurred.
`abstract boolean`	`onKeyMultiple(int keyCode, int count, KeyEvent event)` Called when a user's interaction with an analog control, such as flinging a trackball, generates simulated down/up events for the same key multiple times in quick succession.
`abstract boolean`	`onKeyUp(int keyCode, KeyEvent event)` Called when a key up event has occurred.

From interface


        
          android.content.ComponentCallbacks2


      onTrimMemory(int level)

Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process.

From interface


        
          android.content.ComponentCallbacks

`abstract void`	`onConfigurationChanged(Configuration newConfig)` Called by the system when the device configuration changes while your component is running.
`abstract void`	`onLowMemory()` This method was deprecated in API level 35. Since API level 14 this is superseded by `ComponentCallbacks2.onTrimMemory`. Since API level 34 this is never called. If you're overriding ComponentCallbacks2#onTrimMemory and your minSdkVersion is greater than API 14, you can provide an empty implementation for this method.

XML attributes

android:imeExtractEnterAnimation

Animation to use when showing the fullscreen extract UI after it had previously been hidden.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

android:imeExtractExitAnimation

Animation to use when hiding the fullscreen extract UI after it had previously been shown.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

android:imeFullscreenBackground

Background to use for entire input method when it is being shown in fullscreen mode with the extract view, to ensure that it completely covers the application. This allows, for example, the candidate view to be hidden while in fullscreen mode without having the application show through behind it.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

May be a color value, in the form of "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

Constants

BACK_DISPOSITION_ADJUST_NOTHING

Added in API level 28

public static final int BACK_DISPOSITION_ADJUST_NOTHING

Asks the system to not adjust the back button affordance even when the software keyboard is shown.

This mode is useful for UI modes where IME's main soft input window is used for some supplemental UI, such as floating candidate window for languages such as Chinese and Japanese, where users expect the back button is, or at least looks to be, handled by the target application rather than the UI shown by the IME even while isInputViewShown() returns true.

Note that KeyEvent.KEYCODE_BACK events continue to be sent to onKeyDown(int, android.view.KeyEvent) even when this mode is specified. The default implementation of onKeyDown(int, android.view.KeyEvent) for KeyEvent.KEYCODE_BACK does not take this mode into account.

See also:

setBackDisposition(int)

Constant Value: 3 (0x00000003)

BACK_DISPOSITION_DEFAULT

Added in API level 11

public static final int BACK_DISPOSITION_DEFAULT

Allows the system to optimize the back button affordance based on the presence of software keyboard.

For instance, on devices that have navigation bar and software-rendered back button, the system may use a different icon while isInputViewShown() returns true, to indicate that the back button has "dismiss" affordance.

For API level Build.VERSION_CODES.O_MR1 and lower devices, this is the only mode you can safely specify without worrying about the compatibility.

See also:

setBackDisposition(int)

Constant Value: 0 (0x00000000)

BACK_DISPOSITION_WILL_DISMISS

Added in API level 11
Deprecated in API level 28

public static final int BACK_DISPOSITION_WILL_DISMISS

This constant was deprecated in API level 28.
on Build.VERSION_CODES.P and later devices, this flag is handled as a synonym of BACK_DISPOSITION_DEFAULT. On Build.VERSION_CODES.O_MR1 and prior devices, expected behavior of this mode had not been well defined. In AOSP implementation running on devices that have navigation bar, specifying this flag could change the software back button to "Dismiss" icon no matter whether the software keyboard is shown or not, but there would be no easy way to restore the icon state even after IME lost the connection to the application. To avoid user confusions, do not specify this mode anyway

Deprecated flag.

To avoid compatibility issues, IME developers should not use this flag.

See also:

setBackDisposition(int)

Constant Value: 2 (0x00000002)

BACK_DISPOSITION_WILL_NOT_DISMISS

Added in API level 11
Deprecated in API level 28

public static final int BACK_DISPOSITION_WILL_NOT_DISMISS

Deprecated flag.

To avoid compatibility issues, IME developers should not use this flag.

See also:

setBackDisposition(int)

Constant Value: 1 (0x00000001)

Public constructors

InputMethodService

public InputMethodService ()

Public methods

enableHardwareAcceleration

Added in API level 17
Deprecated in API level 21

public boolean enableHardwareAcceleration ()

This method was deprecated in API level 21.
Starting in API 21, hardware acceleration is always enabled on capable devices

You can call this to try to enable accelerated drawing for your IME. This must be set before onCreate(), so you will typically call it in your constructor. It is not always possible to use hardware accelerated drawing in an IME (for example on low-end devices that do not have the resources to support this), so the call true if it succeeds otherwise false if you will need to draw in software. You must be able to handle either case.

In API 21 and later, system may automatically enable hardware accelerated drawing for your IME on capable devices even if this method is not explicitly called. Make sure that your IME is able to handle either case.

Returns
`boolean`	`true` if accelerated drawing is successfully enabled otherwise `false`. On API 21 and later devices the return value is basically just a hint and your IME does not need to change the behavior based on the it

finishConnectionlessStylusHandwriting

Added in API level 35

public final void finishConnectionlessStylusHandwriting (CharSequence text)

Finishes the current connectionless stylus handwriting session and delivers the result.

This dismisses the ink window and stops intercepting stylus MotionEvents.

Note for IME developers: Call this method at any time to finish the current handwriting session. Generally, this should be invoked after a short timeout, giving the user enough time to start the next stylus stroke, if any. By default, system will time-out after few seconds. To override default timeout, use setStylusHandwritingSessionTimeout(java.time.Duration).

Parameters
`text`	`CharSequence`: This value may be `null`.

finishStylusHandwriting

Added in API level 33

public final void finishStylusHandwriting ()

Finish the current stylus handwriting session.

This dismisses the ink window and stops intercepting stylus MotionEvents.

Connectionless handwriting sessions should be finished using finishConnectionlessStylusHandwriting(java.lang.CharSequence).

Handwriting session will be finished by framework on next onFinishInput().

getBackDisposition

Added in API level 11

public int getBackDisposition ()

Retrieves the current disposition mode that indicates the expected back button affordance.

Returns
`int`	currently selected disposition mode Value is `BACK_DISPOSITION_DEFAULT`, `BACK_DISPOSITION_WILL_NOT_DISMISS`, `BACK_DISPOSITION_WILL_DISMISS`, or `BACK_DISPOSITION_ADJUST_NOTHING`

See also:

setBackDisposition(int)

getCandidatesHiddenVisibility

Added in API level 3

public int getCandidatesHiddenVisibility ()

Returns the visibility mode (either View.INVISIBLE or View.GONE) of the candidates view when it is not shown. The default implementation returns GONE when isExtractViewShown() returns true, otherwise INVISIBLE. Be careful if you change this to return GONE in other situations -- if showing or hiding the candidates view causes your window to resize, this can cause temporary drawing artifacts as the resize takes place.

Returns
`int`

getCurrentInputBinding

Added in API level 3

public InputBinding getCurrentInputBinding ()

Return the currently active InputBinding for the input method, or null if there is none.

Returns
`InputBinding`

getCurrentInputConnection

Added in API level 3

public InputConnection getCurrentInputConnection ()

Retrieve the currently active InputConnection that is bound to the input method, or null if there is none.

Returns
`InputConnection`

getCurrentInputEditorInfo

Added in API level 3

public EditorInfo getCurrentInputEditorInfo ()

Returns
`EditorInfo`

getCurrentInputStarted

Added in API level 3

public boolean getCurrentInputStarted ()

Returns
`boolean`

getInputMethodWindowRecommendedHeight

Added in API level 21
Deprecated in API level 29

public int getInputMethodWindowRecommendedHeight ()

This method was deprecated in API level 29.
the actual behavior of this method has never been well defined. You cannot use this method in a reliable and predictable way

Aimed to return the previous input method's Insets.contentTopInsets, but its actual semantics has never been well defined.

Note that the previous document clearly mentioned that this method could return 0 at any time for whatever reason. Now this method is just always returning 0.

Returns
`int`	on Android `Build.VERSION_CODES.Q` and later devices this method always returns `0`

getLayoutInflater

Added in API level 3

public LayoutInflater getLayoutInflater ()

Returns
`LayoutInflater`

getMaxWidth

Added in API level 3

public int getMaxWidth ()

Return the maximum width, in pixels, available the input method. Input methods are positioned at the bottom of the screen and, unless running in fullscreen, will generally want to be as short as possible so should compute their height based on their contents. However, they can stretch as much as needed horizontally. The function returns to you the maximum amount of space available horizontally, which you can use if needed for UI placement.

In many cases this is not needed, you can just rely on the normal view layout mechanisms to position your views within the full horizontal space given to the input method.

Note that this value can change dynamically, in particular when the screen orientation changes.

Returns
`int`

getStylusHandwritingIdleTimeoutMax

Added in API level 34

public static final Duration getStylusHandwritingIdleTimeoutMax ()

Returns the maximum stylus handwriting session idle-timeout for use with setStylusHandwritingSessionTimeout(java.time.Duration).

Returns
`Duration`	This value cannot be `null`.

See also:

getStylusHandwritingSessionTimeout

Added in API level 34

public final Duration getStylusHandwritingSessionTimeout ()

Returns the duration after which an ongoing stylus handwriting session that hasn't received new MotionEvents will time out and finishStylusHandwriting() will be called. The current timeout can be changed using setStylusHandwritingSessionTimeout(java.time.Duration).

Returns
`Duration`	This value cannot be `null`.

See also:

getStylusHandwritingWindow

Added in API level 33

public final Window getStylusHandwritingWindow ()

Returns the stylus handwriting inking window. IMEs supporting stylus input are expected to attach their inking views to this window (e.g. with Window.setContentView(View) )). Handwriting-related MotionEvents are dispatched to the attached view hierarchy. Note: This returns null if IME doesn't support stylus handwriting i.e. if InputMethodInfo.supportsStylusHandwriting() is false. This method should be called after onStartStylusHandwriting().

Returns
`Window`

See also:

onStartStylusHandwriting()

getSystemService

Added in API level 3

public Object getSystemService (String name)

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

WINDOW_SERVICE ("window"): The top-level window manager in which you can place custom windows. The returned object is a WindowManager. Must only be obtained from a visual context such as Activity or a Context created with createWindowContext(int, android.os.Bundle), which are adjusted to the configuration and visual bounds of an area on screen.
LAYOUT_INFLATER_SERVICE ("layout_inflater"): A LayoutInflater for inflating layout resources in this context. Must only be obtained from a visual context such as Activity or a Context created with createWindowContext(int, android.os.Bundle), which are adjusted to the configuration and visual bounds of an area on screen.
ACTIVITY_SERVICE ("activity"): A ActivityManager for interacting with the global activity state of the system.
WALLPAPER_SERVICE ("wallpaper"): A WallpaperService for accessing wallpapers in this context. Must only be obtained from a visual context such as Activity or a Context created with createWindowContext(int, android.os.Bundle), which are adjusted to the configuration and visual bounds of an area on screen.
POWER_SERVICE ("power"): A PowerManager for controlling power management.
ALARM_SERVICE ("alarm"): A AlarmManager for receiving intents at the time of your choosing.
NOTIFICATION_SERVICE ("notification"): A NotificationManager for informing the user of background events.
KEYGUARD_SERVICE ("keyguard"): A KeyguardManager for controlling keyguard.
LOCATION_SERVICE ("location"): A LocationManager for controlling location (e.g., GPS) updates.
SEARCH_SERVICE ("search"): A SearchManager for handling search.
VIBRATOR_MANAGER_SERVICE ("vibrator_manager"): A VibratorManager for accessing the device vibrators, interacting with individual ones and playing synchronized effects on multiple vibrators.
VIBRATOR_SERVICE ("vibrator"): A Vibrator for interacting with the vibrator hardware.
CONNECTIVITY_SERVICE ("connectivity"): A ConnectivityManager for handling management of network connections.
IPSEC_SERVICE ("ipsec"): A IpSecManager for managing IPSec on sockets and networks.
WIFI_SERVICE ("wifi"): A WifiManager for management of Wi-Fi connectivity. On releases before Android 7, it should only be obtained from an application context, and not from any other derived context to avoid memory leaks within the calling process.
WIFI_AWARE_SERVICE ("wifiaware"): A WifiAwareManager for management of Wi-Fi Aware discovery and connectivity.
WIFI_P2P_SERVICE ("wifip2p"): A WifiP2pManager for management of Wi-Fi Direct connectivity.
INPUT_METHOD_SERVICE ("input_method"): An InputMethodManager for management of input methods.
UI_MODE_SERVICE ("uimode"): An UiModeManager for controlling UI modes.
DOWNLOAD_SERVICE ("download"): A DownloadManager for requesting HTTP downloads
BATTERY_SERVICE ("batterymanager"): A BatteryManager for managing battery state
JOB_SCHEDULER_SERVICE ("taskmanager"): A JobScheduler for managing scheduled tasks
NETWORK_STATS_SERVICE ("netstats"): A NetworkStatsManager for querying network usage statistics.
HARDWARE_PROPERTIES_SERVICE ("hardware_properties"): A HardwarePropertiesManager for accessing hardware properties.
DOMAIN_VERIFICATION_SERVICE ("domain_verification"): A DomainVerificationManager for accessing web domain approval state.
DISPLAY_HASH_SERVICE ("display_hash"): A DisplayHashManager for management of display hashes.
ERROR(/#AUTHENTICATION_POLICY_SERVICE) ("authentication_policy"): A ERROR(/android.security.authenticationpolicy.AuthenticationPolicyManager) for managing authentication related policies on the device.

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

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

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

Parameters
`name`	`String`: This value cannot be `null`.

Returns
`Object`	This value may be `null`.

getTextForImeAction

Added in API level 3

public CharSequence getTextForImeAction (int imeOptions)

Return text that can be used as a button label for the given EditorInfo.imeOptions. Returns null if there is no action requested. Note that there is no guarantee that the returned text will be relatively short, so you probably do not want to use it as text on a soft keyboard key label.

Parameters
`imeOptions`	`int`: The value from `EditorInfo.imeOptions`.

Returns
`CharSequence`	Returns a label to use, or null if there is no action.

getWindow

Added in API level 3

public Dialog getWindow ()

Returns
`Dialog`

hideStatusIcon

Added in API level 3

public void hideStatusIcon ()

hideWindow

Added in API level 3

public void hideWindow ()

isExtractViewShown

Added in API level 3

public boolean isExtractViewShown ()

Return whether the fullscreen extract view is shown. This will only return true if isFullscreenMode() returns true, and in that case its value depends on the last call to setExtractViewShown(boolean). This effectively lets you determine if the application window is entirely covered (when this returns true) or if some part of it may be shown (if this returns false, though if isFullscreenMode() returns true in that case then it is probably only a sliver of the application).

Returns
`boolean`

isFullscreenMode

Added in API level 3

public boolean isFullscreenMode ()

Return whether the input method is currently running in fullscreen mode. This is the mode that was last determined and applied by updateFullscreenMode().

Returns
`boolean`

isInputViewShown

Added in API level 3

public boolean isInputViewShown ()

Return whether the soft input view is currently shown to the user. This is the state that was last determined and applied by updateInputViewShown().

Returns
`boolean`

isShowInputRequested

Added in API level 3

public boolean isShowInputRequested ()

Returns true if we have been asked to show our input view.

Returns
`boolean`

onAppPrivateCommand

Added in API level 3

public void onAppPrivateCommand (String action, 
                Bundle data)

Not implemented in this class.

Parameters
`action`	`String`
`data`	`Bundle`

onBindInput

Added in API level 3

public void onBindInput ()

Called when a new client has bound to the input method. This may be followed by a series of onStartInput(android.view.inputmethod.EditorInfo, boolean) and onFinishInput() calls as the user navigates through its UI. Upon this call you know that getCurrentInputBinding() and getCurrentInputConnection() return valid objects.

onComputeInsets

Added in API level 3

public void onComputeInsets (InputMethodService.Insets outInsets)

Compute the interesting insets into your UI. The default implementation uses the top of the candidates frame for the visible insets, and the top of the input frame for the content insets. The default touchable insets are Insets.TOUCHABLE_INSETS_VISIBLE.

Note that this method is not called when isExtractViewShown() returns true, since in that case the application is left as-is behind the input method and not impacted by anything in its UI.

Parameters
`outInsets`	`InputMethodService.Insets`: Fill in with the current UI insets.

onConfigurationChanged

Added in API level 3

public void onConfigurationChanged (Configuration newConfig)

Take care of handling configuration changes. Subclasses of InputMethodService generally don't need to deal directly with this on their own; the standard implementation here takes care of regenerating the input method UI as a result of the configuration change, so you can rely on your onCreateInputView() and other methods being called as appropriate due to a configuration change.

When a configuration change does happen, onInitializeInterface() is guaranteed to be called the next time prior to any of the other input or UI creation callbacks. The following will be called immediately depending if appropriate for current state: onStartInput(EditorInfo, boolean) if input is active, and onCreateInputView() and onStartInputView(EditorInfo, boolean) and related appropriate functions if the UI is displayed.

Starting with Build.VERSION_CODES.S, IMEs can opt into handling configuration changes themselves instead of being restarted with R.styleable.InputMethod_configChanges.

Parameters
`newConfig`	`Configuration`: This value cannot be `null`.

onConfigureWindow

Added in API level 3

public void onConfigureWindow (Window win, 
                boolean isFullscreen, 
                boolean isCandidatesOnly)

Update the given window's parameters for the given mode. This is called when the window is first displayed and each time the fullscreen or candidates only mode changes.

The default implementation makes the layout for the window MATCH_PARENT x MATCH_PARENT when in fullscreen mode, and MATCH_PARENT x WRAP_CONTENT when in non-fullscreen mode.

Parameters
`win`	`Window`: The input method's window.
`isFullscreen`	`boolean`: If true, the window is running in fullscreen mode and intended to cover the entire application display.
`isCandidatesOnly`	`boolean`: If true, the window is only showing the candidates view and none of the rest of its UI. This is mutually exclusive with fullscreen mode.

onCreate

Added in API level 3

public void onCreate ()

Called by the system when the service is first created. Do not call this method directly.

onCreateCandidatesView

Added in API level 3

public View onCreateCandidatesView ()

Create and return the view hierarchy used to show candidates. This will be called once, when the candidates are first displayed. You can return null to have no candidates view; the default implementation returns null.

To control when the candidates view is displayed, use setCandidatesViewShown(boolean). To change the candidates view after the first one is created by this function, use setCandidatesView(android.view.View).

Returns
`View`

onCreateExtractTextView

Added in API level 3

public View onCreateExtractTextView ()

Called by the framework to create the layout for showing extracted text. Only called when in fullscreen mode. The returned view hierarchy must have an ExtractEditText whose ID is R.id.inputExtractEditText, with action ID R.id.inputExtractAction and accessories ID R.id.inputExtractAccessories.

Returns
`View`

onCreateInlineSuggestionsRequest

Added in API level 30

public InlineSuggestionsRequest onCreateInlineSuggestionsRequest (Bundle uiExtras)

Called when Autofill is requesting an InlineSuggestionsRequest from the IME.

The Autofill Framework will first request the IME to create and send an InlineSuggestionsRequest back. Once Autofill Framework receives a valid request and also receives valid inline suggestions, they will be returned via onInlineSuggestionsResponse(android.view.inputmethod.InlineSuggestionsResponse).

IME Lifecycle - The request will wait to be created after inputStarted

If the IME wants to support displaying inline suggestions, they must set supportsInlineSuggestions in its XML and implement this method to return a valid InlineSuggestionsRequest.

Parameters
`uiExtras`	`Bundle`: the extras that contain the UI renderer related information This value cannot be `null`.

Returns
`InlineSuggestionsRequest`	an `InlineSuggestionsRequest` to be sent to Autofill. This value may be `null`.

onCreateInputMethodInterface

Added in API level 3

public AbstractInputMethodService.AbstractInputMethodImpl onCreateInputMethodInterface ()

This method is deprecated.
Overriding or calling this method is strongly discouraged. A future version of Android will remove the ability to use this method. Use the callbacks on InputMethodService as InputMethodService.onBindInput(), InputMethodService.onUnbindInput(), InputMethodService.onWindowShown(), InputMethodService.onWindowHidden(), etc.

Implement to return our standard InputMethodImpl.

Returns
`AbstractInputMethodService.AbstractInputMethodImpl`

onCreateInputMethodSessionInterface

Added in API level 3

public AbstractInputMethodService.AbstractInputMethodSessionImpl onCreateInputMethodSessionInterface ()

This method is deprecated.
Overriding or calling this method is strongly discouraged. Most methods in InputMethodSessionImpl have corresponding callbacks. Use InputMethodService.onFinishInput(), InputMethodService.onDisplayCompletions(CompletionInfo[]), InputMethodService.onUpdateExtractedText(int, ExtractedText), InputMethodService.onUpdateSelection(int, int, int, int, int, int) instead.

Implement to return our standard InputMethodSessionImpl.

IMEs targeting on Android U and above cannot override this method, or an LinkageError would be thrown.

Returns
`AbstractInputMethodService.AbstractInputMethodSessionImpl`

onCreateInputView

Added in API level 3

public View onCreateInputView ()

Create and return the view hierarchy used for the input area (such as a soft keyboard). This will be called once, when the input area is first displayed. You can return null to have no input area; the default implementation returns null.

To control when the input view is displayed, implement onEvaluateInputViewShown(). To change the input view after the first one is created by this function, use setInputView(android.view.View).

Returns
`View`

onCustomImeSwitcherButtonRequestedVisible

Added in Android Baklava

public void onCustomImeSwitcherButtonRequestedVisible (boolean visible)

Called when the requested visibility of a custom IME Switcher button changes.

When the system provides an IME navigation bar, it may decide to show an IME Switcher button inside this bar. However, the IME can request hiding the bar provided by the system with getWindowInsetsController().hide(captionBar()) (the IME navigation bar provides captionBar insets to the IME window). If the request is successful, then it becomes the IME's responsibility to provide a custom IME Switcher button in its input view, with equivalent functionality.

This custom button is only requested to be visible when the system provides the IME navigation bar, both the bar and the IME Switcher button inside it should be visible, but the IME successfully requested to hide the bar. This does not depend on the current visibility of the IME. It could be called with true while the IME is hidden, in which case the IME should prepare to show the button as soon as the IME itself is shown.

This is only called when the requested visibility changes. The default value is false and as such, this will not be called initially if the resulting value is false.

This can be called at any time after onCreate(), even if the IME is not currently visible. However, this is not guaranteed to be called before the IME is shown, as it depends on when the IME requested hiding the IME navigation bar. If the request is sent during the showing flow (e.g. during onStartInputView(EditorInfo, boolean)), this will be called shortly after onWindowShown(), but before the first IME frame is drawn.

Parameters
`visible`	`boolean`: whether the button is requested visible or not.

onDestroy

Added in API level 3

public void onDestroy ()

Called by the system to notify a Service that it is no longer used and is being removed. The service should clean up any resources it holds (threads, registered receivers, etc) at this point. Upon return, there will be no more calls in to this Service object and it is effectively dead. Do not call this method directly. If you override this method you must call through to the superclass implementation.

onDisplayCompletions

Added in API level 3

public void onDisplayCompletions (CompletionInfo[] completions)

Called when the application has reported auto-completion candidates that it would like to have the input method displayed. Typically these are only used when an input method is running in full-screen mode, since otherwise the user can see and interact with the pop-up window of completions shown by the application.

The default implementation here does nothing.

Parameters
`completions`	`CompletionInfo`

onEvaluateFullscreenMode

Added in API level 3

public boolean onEvaluateFullscreenMode ()

Override this to control when the input method should run in fullscreen mode. The default implementation runs in fullsceen only when the screen is in landscape mode. If you change what this returns, you will need to call updateFullscreenMode() yourself whenever the returned value may have changed to have it re-evaluated and applied.

Returns
`boolean`

onEvaluateInputViewShown

Added in API level 3

public boolean onEvaluateInputViewShown ()

Override this to control when the soft input area should be shown to the user. The default implementation returns false when there is no hard keyboard or the keyboard is hidden unless the user shows an intention to use software keyboard. If you change what this returns, you will need to call updateInputViewShown() yourself whenever the returned value may have changed to have it re-evaluated and applied.

When you override this method, it is recommended to call super.onEvaluateInputViewShown() and return true when true is returned.

If you override this method you must call through to the superclass implementation.

Returns
`boolean`

onExtractTextContextMenuItem

Added in API level 3

public boolean onExtractTextContextMenuItem (int id)

This is called when the user has selected a context menu item from the extracted text view, when running in fullscreen mode. The default implementation sends this action to the current InputConnection's InputConnection.performContextMenuAction(int), for it to be processed in underlying "real" editor. Re-implement this to provide whatever behavior you want.

Parameters
`id`	`int`

Returns
`boolean`

onExtractedCursorMovement

Added in API level 3

public void onExtractedCursorMovement (int dx, 
                int dy)

This is called when the user has performed a cursor movement in the extracted text view, when it is running in fullscreen mode. The default implementation hides the candidates view when a vertical movement happens, but only if the extracted text editor has a vertical scroll bar because its text doesn't fit. Re-implement this to provide whatever behavior you want.

Parameters
`dx`	`int`: The amount of cursor movement in the x dimension.
`dy`	`int`: The amount of cursor movement in the y dimension.

onExtractedSelectionChanged

Added in API level 3

public void onExtractedSelectionChanged (int start, 
                int end)

This is called when the user has moved the cursor in the extracted text view, when running in fullsreen mode. The default implementation performs the corresponding selection change on the underlying text editor.

Parameters
`start`	`int`
`end`	`int`

onExtractedTextClicked

Added in API level 3

public void onExtractedTextClicked ()

This is called when the user has clicked on the extracted text view, when running in fullscreen mode. The default implementation hides the candidates view when this happens, but only if the extracted text editor has a vertical scroll bar because its text doesn't fit. Re-implement this to provide whatever behavior you want.

onExtractingInputChanged

Added in API level 3

public void onExtractingInputChanged (EditorInfo ei)

This is called when, while currently displayed in extract mode, the current input target changes. The default implementation will auto-hide the IME if the new target is not a full editor, since this can be a confusing experience for the user.

Parameters
`ei`	`EditorInfo`

onFinishCandidatesView

Added in API level 3

public void onFinishCandidatesView (boolean finishingInput)

Called when the candidates view is being hidden from the user. This will be called either prior to hiding the window, or prior to switching to another target for editing.

The default implementation uses the InputConnection to clear any active composing text; you can override this (not calling the base class implementation) to perform whatever behavior you would like.

Parameters
`finishingInput`	`boolean`: If true, `onFinishInput()` will be called immediately after.

onFinishInput

Added in API level 3

public void onFinishInput ()

Called to inform the input method that text input has finished in the last editor. At this point there may be a call to onStartInput(android.view.inputmethod.EditorInfo, boolean) to perform input in a new editor, or the input method may be left idle. This method is not called when input restarts in the same editor.

The default implementation uses the InputConnection to clear any active composing text; you can override this (not calling the base class implementation) to perform whatever behavior you would like.

onFinishInputView

Added in API level 3

public void onFinishInputView (boolean finishingInput)

Called when the input view is being hidden from the user. This will be called either prior to hiding the window, or prior to switching to another target for editing.

The default implementation uses the InputConnection to clear any active composing text; you can override this (not calling the base class implementation) to perform whatever behavior you would like.

Parameters
`finishingInput`	`boolean`: If true, `onFinishInput()` will be called immediately after.

onFinishStylusHandwriting

Added in API level 33

public void onFinishStylusHandwriting ()

Called when the current stylus handwriting session was finished (either by the system or via finishStylusHandwriting(). When this is called, the ink window has been made invisible, and the IME no longer intercepts handwriting-related MotionEvents.

onGenericMotionEvent

Added in API level 17

public boolean onGenericMotionEvent (MotionEvent event)

Override this to intercept generic motion events before they are processed by the application. If you return true, the application will not itself process the event. If you return false, the normal application processing will occur as if the IME had not seen the event at all.

Parameters
`event`	`MotionEvent`: The motion event being received.

Returns
`boolean`	True if the event was handled in this function, false otherwise.

onInitializeInterface

Added in API level 3

public void onInitializeInterface ()

This is a hook that subclasses can use to perform initialization of their interface. It is called for you prior to any of your UI objects being created, both after the service is first created and after a configuration change happens.

onInlineSuggestionsResponse

Added in API level 30

public boolean onInlineSuggestionsResponse (InlineSuggestionsResponse response)

Called when Autofill responds back with InlineSuggestionsResponse containing inline suggestions.

Should be implemented by subclasses.

Parameters
`response`	`InlineSuggestionsResponse`: `InlineSuggestionsResponse` passed back by Autofill. This value cannot be `null`.

Returns
`boolean`	Whether the IME will use and render the inline suggestions.

onKeyDown

Added in API level 3

public boolean onKeyDown (int keyCode, 
                KeyEvent event)

Called back when a KeyEvent is forwarded from the target application.

The default implementation intercepts KeyEvent.KEYCODE_BACK if the IME is currently shown , to possibly hide it when the key goes up (if not canceled or long pressed). In addition, in fullscreen mode only, it will consume DPAD movement events to move the cursor in the extracted text view, not allowing them to perform navigation in the underlying application.

The default implementation does not take flags specified to setBackDisposition(int) into account, even on API version Build.VERSION_CODES.P and later devices. IME developers are responsible for making sure that their special handling for KeyEvent.KEYCODE_BACK are consistent with the flag they specified to setBackDisposition(int).

Parameters
`keyCode`	`int`: The value in `event.getKeyCode()`
`event`	`KeyEvent`: Description of the key event

Returns
`boolean`	`true` if the event is consumed by the IME and the application no longer needs to consume it. Return `false` when the event should be handled as if the IME had not seen the event at all.

onKeyLongPress

Added in API level 5

public boolean onKeyLongPress (int keyCode, 
                KeyEvent event)

Default implementation of KeyEvent.Callback.onKeyLongPress(): always returns false (doesn't handle the event).

Parameters
`keyCode`	`int`
`event`	`KeyEvent`

Returns
`boolean`

onKeyMultiple

Added in API level 3

public boolean onKeyMultiple (int keyCode, 
                int count, 
                KeyEvent event)

Override this to intercept special key multiple events before they are processed by the application. If you return true, the application will not itself process the event. If you return false, the normal application processing will occur as if the IME had not seen the event at all.

The default implementation always returns false, except when in fullscreen mode, where it will consume DPAD movement events to move the cursor in the extracted text view, not allowing them to perform navigation in the underlying application.

Parameters
`keyCode`	`int`
`count`	`int`
`event`	`KeyEvent`

Returns
`boolean`

onKeyUp

Added in API level 3

public boolean onKeyUp (int keyCode, 
                KeyEvent event)

Override this to intercept key up events before they are processed by the application. If you return true, the application will not itself process the event. If you return false, the normal application processing will occur as if the IME had not seen the event at all.

The default implementation intercepts KeyEvent.KEYCODE_BACK to hide the current IME UI if it is shown. In addition, in fullscreen mode only, it will consume DPAD movement events to move the cursor in the extracted text view, not allowing them to perform navigation in the underlying application.

Parameters
`keyCode`	`int`
`event`	`KeyEvent`

Returns
`boolean`

onPrepareStylusHandwriting

Added in API level 33

public void onPrepareStylusHandwriting ()

Called to prepare stylus handwriting. The system calls this before the onStartStylusHandwriting() request.

Note: The system tries to call this as early as possible, when it detects that handwriting stylus input is imminent. However, that a subsequent call to onStartStylusHandwriting() actually happens is not guaranteed.

onShouldVerifyKeyEvent

Added in Android Baklava

public boolean onShouldVerifyKeyEvent (KeyEvent keyEvent)

Received by the IME before dispatch to onKeyDown(int, android.view.KeyEvent) to let the system know if the KeyEvent needs to be verified that it originated from the system. KeyEvents may originate from outside of the system and any sensitive keys should be marked for verification. One example of this could be using key shortcuts for switching to another IME.

Parameters
`keyEvent`	`KeyEvent`: the event that may need verification. This value cannot be `null`.

Returns
`boolean`	`true` if `KeyEvent` should have its HMAC verified before dispatch, `false` otherwise.

onShowInputRequested

Added in API level 3

public boolean onShowInputRequested (int flags, 
                boolean configChange)

The system has decided that it may be time to show your input method. This is called due to a corresponding call to your InputMethod.showSoftInput() method. The default implementation uses onEvaluateInputViewShown(), onEvaluateFullscreenMode(), and the current configuration to decide whether the input view should be shown at this point.

Parameters
`flags`	`int`: Value is either `0` or a combination of `InputMethod.SHOW_EXPLICIT`, and `InputMethod.SHOW_FORCED`
`configChange`	`boolean`: This is true if we are re-showing due to a configuration change.

Returns
`boolean`	Returns true to indicate that the window should be shown.

onStartCandidatesView

Added in API level 3

public void onStartCandidatesView (EditorInfo editorInfo, 
                boolean restarting)

Called when only the candidates view has been shown for showing processing as the user enters text through a hard keyboard. This will always be called after onStartInput(EditorInfo, boolean), allowing you to do your general setup there and just view-specific setup here. You are guaranteed that onCreateCandidatesView() will have been called some time before this function is called.

Note that this will not be called when the input method is running in full editing mode, and thus receiving onStartInputView(EditorInfo, boolean) to initiate that operation. This is only for the case when candidates are being shown while the input method editor is hidden but wants to show its candidates UI as text is entered through some other mechanism.

Parameters
`editorInfo`	`EditorInfo`: Description of the type of text being edited.
`restarting`	`boolean`: Set to true if we are restarting input on the same text field as before.

onStartConnectionlessStylusHandwriting

Added in API level 35

public boolean onStartConnectionlessStylusHandwriting (int inputType, 
                CursorAnchorInfo cursorAnchorInfo)

Called when an app requests to start a connectionless stylus handwriting session using one of InputMethodManager.startConnectionlessStylusHandwriting(View, CursorAnchorInfo, Executor, ConnectionlessHandwritingCallback), InputMethodManager.startConnectionlessStylusHandwritingForDelegation(android.view.View, android.view.inputmethod.CursorAnchorInfo, java.util.concurrent.Executor, android.view.inputmethod.ConnectionlessHandwritingCallback), or InputMethodManager.startConnectionlessStylusHandwritingForDelegation(android.view.View, android.view.inputmethod.CursorAnchorInfo, java.lang.String, java.util.concurrent.Executor, android.view.inputmethod.ConnectionlessHandwritingCallback).

A connectionless stylus handwriting session differs from a regular session in that an input connection is not used to communicate with a text editor. Instead, the recognised text is delivered when the IME finishes the connectionless session using finishConnectionlessStylusHandwriting(java.lang.CharSequence).

If the IME can start the connectionless handwriting session, it should return true, ensure its inking views are attached to the getStylusHandwritingWindow(), and handle stylus input received from onStylusHandwritingMotionEvent(android.view.MotionEvent) on the getStylusHandwritingWindow().

Parameters
`inputType`	`int`
`cursorAnchorInfo`	`CursorAnchorInfo`: This value may be `null`.

Returns
`boolean`

onStartInput

Added in API level 3

public void onStartInput (EditorInfo attribute, 
                boolean restarting)

Called to inform the input method that text input has started in an editor. You should use this callback to initialize the state of your input to match the state of the editor given to it.

Parameters
`attribute`	`EditorInfo`: The attributes of the editor that input is starting in.
`restarting`	`boolean`: Set to true if input is restarting in the same editor such as because the application has changed the text in the editor. Otherwise will be false, indicating this is a new session with the editor.

onStartInputView

Added in API level 3

public void onStartInputView (EditorInfo editorInfo, 
                boolean restarting)

Called when the input view is being shown and input has started on a new editor. This will always be called after onStartInput(EditorInfo, boolean), allowing you to do your general setup there and just view-specific setup here. You are guaranteed that onCreateInputView() will have been called some time before this function is called.

Parameters
`editorInfo`	`EditorInfo`: Description of the type of text being edited.
`restarting`	`boolean`: Set to true if we are restarting input on the same text field as before.

onStartStylusHandwriting

Added in API level 33

public boolean onStartStylusHandwriting ()

Called when an app requests stylus handwriting InputMethodManager.startStylusHandwriting(View). This will always be preceded by onStartInput(android.view.inputmethod.EditorInfo, boolean) for the EditorInfo and InputConnection for which stylus handwriting is being requested. If the IME supports handwriting for the current input, it should return true, ensure its inking views are attached to the getStylusHandwritingWindow(), and handle stylus input received from onStylusHandwritingMotionEvent(android.view.MotionEvent) on the getStylusHandwritingWindow() via getCurrentInputConnection().

Returns
`boolean`	`true` if IME can honor the request, `false` if IME cannot at this time.

onStylusHandwritingMotionEvent

Added in API level 33

public void onStylusHandwritingMotionEvent (MotionEvent motionEvent)

Called after onStartStylusHandwriting() returns true for every Stylus MotionEvent. By default, this method forwards all MotionEvents to the getStylusHandwritingWindow() once its visible, however IME can override it to receive them sooner.

Parameters
`motionEvent`	`MotionEvent`: `MotionEvent` from stylus. This value cannot be `null`.

onTrackballEvent

Added in API level 3

public boolean onTrackballEvent (MotionEvent event)

Override this to intercept trackball motion events before they are processed by the application. If you return true, the application will not itself process the event. If you return false, the normal application processing will occur as if the IME had not seen the event at all.

Parameters
`event`	`MotionEvent`: The motion event being received.

Returns
`boolean`	True if the event was handled in this function, false otherwise.

onUnbindInput

Added in API level 3

public void onUnbindInput ()

Called when the previous bound client is no longer associated with the input method. After returning getCurrentInputBinding() and getCurrentInputConnection() will no longer return valid objects.

onUpdateCursor

Added in API level 3
Deprecated in API level 21

public void onUpdateCursor (Rect newCursor)

This method was deprecated in API level 21.
Use onUpdateCursorAnchorInfo(android.view.inputmethod.CursorAnchorInfo) instead.

Called when the application has reported a new location of its text cursor. This is only called if explicitly requested by the input method. The default implementation does nothing.

Parameters
`newCursor`	`Rect`

onUpdateCursorAnchorInfo

Added in API level 21

public void onUpdateCursorAnchorInfo (CursorAnchorInfo cursorAnchorInfo)

Called when the application has reported a new location of its text insertion point and characters in the composition string. This is only called if explicitly requested by the input method. The default implementation does nothing.

Parameters
`cursorAnchorInfo`	`CursorAnchorInfo`: The positional information of the text insertion point and the composition string.

onUpdateEditorToolType

Added in API level 34

public void onUpdateEditorToolType (int toolType)

Called when the user tapped or clicked an editor. This can be useful when IME makes a decision of showing Virtual keyboard based on what MotionEvent.getToolType(int) was used to click the editor. e.g. when toolType is MotionEvent.TOOL_TYPE_STYLUS, IME may choose to show a companion widget instead of normal virtual keyboard.

This method is called after onStartInput(android.view.inputmethod.EditorInfo, boolean) and before onStartInputView(android.view.inputmethod.EditorInfo, boolean) when editor was clicked with a known tool type.

Default implementation does nothing.

Parameters
`toolType`	`int`: what `MotionEvent.getToolType(int)` was used to click on editor. Value is `MotionEvent.TOOL_TYPE_UNKNOWN`, `MotionEvent.TOOL_TYPE_FINGER`, `MotionEvent.TOOL_TYPE_STYLUS`, `MotionEvent.TOOL_TYPE_MOUSE`, `MotionEvent.TOOL_TYPE_ERASER`, or android.view.MotionEvent.TOOL_TYPE_PALM

onUpdateExtractedText

Added in API level 3

public void onUpdateExtractedText (int token, 
                ExtractedText text)

Called when the application has reported new extracted text to be shown due to changes in its current text state. The default implementation here places the new text in the extract edit text, when the input method is running in fullscreen mode.

Parameters
`token`	`int`
`text`	`ExtractedText`

onUpdateExtractingViews

Added in API level 3

public void onUpdateExtractingViews (EditorInfo ei)

Called when the fullscreen-mode extracting editor info has changed, to update the state of its UI such as the action buttons shown. You do not need to deal with this if you are using the standard full screen extract UI. If replacing it, you will need to re-implement this to put the appropriate action button in your own UI and handle it, and perform any other changes.

The standard implementation turns on or off its accessory area depending on whether there is an action button, and hides or shows the entire extract area depending on whether it makes sense for the current editor. In particular, a InputType.TYPE_NULL or InputType.TYPE_TEXT_VARIATION_FILTER input type will turn off the extract area since there is no text to be shown.

Parameters
`ei`	`EditorInfo`

onUpdateExtractingVisibility

Added in API level 3

public void onUpdateExtractingVisibility (EditorInfo ei)

Called when the fullscreen-mode extracting editor info has changed, to determine whether the extracting (extract text and candidates) portion of the UI should be shown. The standard implementation hides or shows the extract area depending on whether it makes sense for the current editor. In particular, a InputType.TYPE_NULL input type or EditorInfo.IME_FLAG_NO_EXTRACT_UI flag will turn off the extract area since there is no text to be shown.

Parameters
`ei`	`EditorInfo`

onUpdateSelection

Added in API level 3

public void onUpdateSelection (int oldSelStart, 
                int oldSelEnd, 
                int newSelStart, 
                int newSelEnd, 
                int candidatesStart, 
                int candidatesEnd)

Called when the application has reported a new selection region of the text. This is called whether or not the input method has requested extracted text updates, although if so it will not receive this call if the extracted text has changed as well.

The default implementation takes care of updating the cursor in the extract text, if it is being shown.

Parameters
`oldSelStart`	`int`
`oldSelEnd`	`int`
`newSelStart`	`int`
`newSelEnd`	`int`
`candidatesStart`	`int`
`candidatesEnd`	`int`

onViewClicked

Added in API level 14
Deprecated in API level 29

public void onViewClicked (boolean focusChanged)

This method was deprecated in API level 29.
The method may not be called for composite View that works as a giant "Canvas", which can host its own UI hierarchy and sub focus state. WebView is a good example. Application / IME developers should not rely on this method. If your goal is just being notified when an on-going input is interrupted, simply monitor onFinishInput(). If your goal is to know what MotionEvent.getToolType(int) clicked on editor, use onUpdateEditorToolType(int) instead.

Called when the user tapped or clicked a text view. IMEs can't rely on this method being called because this was not part of the original IME protocol, so applications with custom text editing written before this method appeared will not call to inform the IME of this interaction.

Parameters
`focusChanged`	`boolean`: true if the user changed the focused view by this click.

See also:

onWindowHidden

Added in API level 3

public void onWindowHidden ()

Called when the input method window has been hidden from the user, after previously being visible.

onWindowShown

Added in API level 3

public void onWindowShown ()

Called immediately before the input method window is shown to the user. You could override this to prepare for the window to be shown (update view structure etc).

requestHideSelf

Added in API level 3

public void requestHideSelf (int flags)

Close this input method's soft input area, removing it from the display. The input method will continue running, but the user can no longer use it to generate input by touching the screen.

Parameters
`flags`	`int`: Value is either `0` or a combination of `InputMethodManager.HIDE_IMPLICIT_ONLY`, and `InputMethodManager.HIDE_NOT_ALWAYS`

requestShowSelf

Added in API level 28

public final void requestShowSelf (int flags)

Show the input method's soft input area, so the user sees the input method window and can interact with it.

Parameters
`flags`	`int`: Value is either `0` or a combination of `InputMethodManager.SHOW_IMPLICIT`, and `InputMethodManager.SHOW_FORCED`

sendDefaultEditorAction

Added in API level 3

public boolean sendDefaultEditorAction (boolean fromEnterKey)

Ask the input target to execute its default action via InputConnection.performEditorAction().

For compatibility, this method does not execute a custom action even if EditorInfo.actionLabel is set. The implementor should directly call InputConnection.performEditorAction() with EditorInfo.actionId if they want to execute a custom action.

Parameters
`fromEnterKey`	`boolean`: If true, this will be executed as if the user had pressed an enter key on the keyboard, that is it will not be done if the editor has set `EditorInfo.IME_FLAG_NO_ENTER_ACTION`. If false, the action will be sent regardless of how the editor has set that flag.

Returns
`boolean`	Returns a boolean indicating whether an action has been sent. If false, either the editor did not specify a default action or it does not want an action from the enter key. If true, the action was sent (or there was no input connection at all).

sendDownUpKeyEvents

Added in API level 3

public void sendDownUpKeyEvents (int keyEventCode)

Send the given key event code (as defined by KeyEvent) to the current input connection is a key down + key up event pair. The sent events have KeyEvent.FLAG_SOFT_KEYBOARD set, so that the recipient can identify them as coming from a software input method, and KeyEvent.FLAG_KEEP_TOUCH_MODE, so that they don't impact the current touch mode of the UI.

Note that it's discouraged to send such key events in normal operation; this is mainly for use with InputType.TYPE_NULL type text fields, or for non-rich input methods. A reasonably capable software input method should use the InputConnection.commitText(CharSequence, int) family of methods to send text to an application, rather than sending key events.

Parameters
`keyEventCode`	`int`: The raw key code to send, as defined by `KeyEvent`.

sendKeyChar

Added in API level 3

public void sendKeyChar (char charCode)

Send the given UTF-16 character to the current input connection. Most characters will be delivered simply by calling InputConnection.commitText() with the character; some, however, may be handled different. In particular, the enter character ('\n') will either be delivered as an action code or a raw key event, as appropriate. Consider this as a convenience method for IMEs that do not have a full implementation of actions; a fully complying IME will decide of the right action for each event and will likely never call this method except maybe to handle events coming from an actual hardware keyboard.

Parameters
`charCode`	`char`: The UTF-16 character code to send.

setBackDisposition

Added in API level 11

public void setBackDisposition (int disposition)

Sets the disposition mode that indicates the expected affordance for the back button.

Keep in mind that specifying this flag does not change the the default behavior of onKeyDown(int, android.view.KeyEvent). It is IME developers' responsibility for making sure that their custom implementation of onKeyDown(int, android.view.KeyEvent) is consistent with the mode specified to this API.

Parameters
`disposition`	`int`: disposition mode to be set Value is `BACK_DISPOSITION_DEFAULT`, `BACK_DISPOSITION_WILL_NOT_DISMISS`, `BACK_DISPOSITION_WILL_DISMISS`, or `BACK_DISPOSITION_ADJUST_NOTHING`

See also:

getBackDisposition()

setCandidatesView

Added in API level 3

public void setCandidatesView (View view)

Replaces the current candidates view with a new one. You only need to call this when dynamically changing the view; normally, you should implement onCreateCandidatesView() and create your view when first needed by the input method.

Parameters
`view`	`View`

setCandidatesViewShown

Added in API level 3

public void setCandidatesViewShown (boolean shown)

Controls the visibility of the candidates display area. By default it is hidden.

Parameters
`shown`	`boolean`

setExtractView

Added in API level 3

public void setExtractView (View view)

Parameters
`view`	`View`

setExtractViewShown

Added in API level 3

public void setExtractViewShown (boolean shown)

Controls the visibility of the extracted text area. This only applies when the input method is in fullscreen mode, and thus showing extracted text. When false, the extracted text will not be shown, allowing some of the application to be seen behind. This is normally set for you by onUpdateExtractingVisibility(EditorInfo). This controls the visibility of both the extracted text and candidate view; the latter since it is not useful if there is no text to see.

Parameters
`shown`	`boolean`

setInputView

Added in API level 3

public void setInputView (View view)

Replaces the current input view with a new one. You only need to call this when dynamically changing the view; normally, you should implement onCreateInputView() and create your view when first needed by the input method.

Parameters
`view`	`View`

setStylusHandwritingRegion

Added in Android Baklava

public final void setStylusHandwritingRegion (Region handwritingRegion)

Sets a new stylus handwriting region as user continues to write on an editor on screen. Stylus strokes that are started within the touchableRegion are treated as continuation of handwriting and all the events outside are passed-through to the IME target app, causing stylus handwriting to finish finishStylusHandwriting(). By default, WindowManager.getMaximumWindowMetrics() is handwritable and touchableRegion resets after each handwriting session.

For example, the IME can use this API to dynamically expand the stylus handwriting region on every stylus stroke as user continues to write on an editor. The region should grow around the last stroke so that a UI element below the IME window is still interactable when it is spaced sufficiently away (~2 character dimensions) from last stroke.

Note: Setting handwriting touchable region is supported on IMEs that support stylus handwriting InputMethodInfo.supportsStylusHandwriting().

Parameters
`handwritingRegion`	`Region`: new stylus handwritable `Region` that can accept stylus touch. This value cannot be `null`.

setStylusHandwritingSessionTimeout

Added in API level 34

public final void setStylusHandwritingSessionTimeout (Duration duration)

Sets the duration after which an ongoing stylus handwriting session that hasn't received new MotionEvents will time out and finishStylusHandwriting() will be called. The maximum allowed duration is returned by getStylusHandwritingIdleTimeoutMax(), larger values will be clamped. Note: this value is bound to the InputMethodService instance and resets to the default whenever a new instance is constructed.

Parameters
`duration`	`Duration`: timeout to set. This value cannot be `null`.

See also:

setTheme

Added in API level 3

public void setTheme (int theme)

You can call this to customize the theme used by your IME's window. This theme should typically be one that derives from R.style.Theme_InputMethod, which is the default theme you will get. This must be set before onCreate(), so you will typically call it in your constructor with the resource ID of your custom theme.

Parameters
`theme`	`int`: The style resource describing the theme.

shouldOfferSwitchingToNextInputMethod

Added in API level 28

public final boolean shouldOfferSwitchingToNextInputMethod ()

Returns true if the current IME needs to offer the users ways to switch to a next input method (e.g. a globe key.). When an IME sets supportsSwitchingToNextInputMethod and this method returns true, the IME has to offer ways to to invoke switchToNextInputMethod(boolean) accordingly.

Note that the system determines the most appropriate next input method and subtype in order to provide the consistent user experience in switching between IMEs and subtypes.

Returns
`boolean`

showStatusIcon

Added in API level 3

public void showStatusIcon (int iconResId)

Parameters
`iconResId`	`int`

showWindow

Added in API level 3

public void showWindow (boolean showInput)

Parameters
`showInput`	`boolean`

switchInputMethod

Added in API level 3

public void switchInputMethod (String id)

Force switch to a new input method, as identified by id. This input method will be destroyed, and the requested one started on the current input field.

Parameters
`id`	`String`: Unique identifier of the new input method to start.

Throws
`IllegalArgumentException`	if the input method is unknown or filtered by the rules of package visibility.

switchInputMethod

Added in API level 28

public final void switchInputMethod (String id, 
                InputMethodSubtype subtype)

Force switch to a new input method, as identified by id. This input method will be destroyed, and the requested one started on the current input field.

Parameters
`id`	`String`: Unique identifier of the new input method to start.
`subtype`	`InputMethodSubtype`: The new subtype of the new input method to be switched to.

Throws
`IllegalArgumentException`	if the input method is unknown or filtered by the rules of package visibility.

switchToNextInputMethod

Added in API level 28

public final boolean switchToNextInputMethod (boolean onlyCurrentIme)

Force switch to the next input method and subtype. If there is no IME enabled except current IME and subtype, do nothing.

Parameters
`onlyCurrentIme`	`boolean`: if true, the framework will find the next subtype which belongs to the current IME

Returns
`boolean`	true if the current input method and subtype was successfully switched to the next input method and subtype.

switchToPreviousInputMethod

Added in API level 28

public final boolean switchToPreviousInputMethod ()

Force switch to the last used input method and subtype. If the last input method didn't have any subtypes, the framework will simply switch to the last input method with no subtype specified.

Returns
`boolean`	true if the current input method and subtype was successfully switched to the last used input method and subtype.

updateFullscreenMode

Added in API level 3

public void updateFullscreenMode ()

Re-evaluate whether the input method should be running in fullscreen mode, and update its UI if this has changed since the last time it was evaluated. This will call onEvaluateFullscreenMode() to determine whether it should currently run in fullscreen mode. You can use isFullscreenMode() to determine if the input method is currently running in fullscreen mode.

updateInputViewShown

Added in API level 3

public void updateInputViewShown ()

Re-evaluate whether the soft input area should currently be shown, and update its UI if this has changed since the last time it was evaluated. This will call onEvaluateInputViewShown() to determine whether the input view should currently be shown. You can use isInputViewShown() to determine if the input view is currently shown.

Protected methods

dump

Added in API level 3

protected void dump (FileDescriptor fd, 
                PrintWriter fout, 
                String[] args)

Performs a dump of the InputMethodService's internal state. Override to add your own information to the dump.

Parameters
`fd`	`FileDescriptor`: The raw file descriptor that the dump is being sent to.
`fout`	`PrintWriter`: The PrintWriter to which you should dump your state. This will be closed for you after you return.
`args`	`String`: additional arguments to the dump request.

onCurrentInputMethodSubtypeChanged

Added in API level 11

protected void onCurrentInputMethodSubtypeChanged (InputMethodSubtype newSubtype)

Called when the subtype was changed.

Parameters
`newSubtype`	`InputMethodSubtype`: the subtype which is being changed to.

InputMethodService

Soft Input View

Candidates View

Fullscreen Mode

Generating Text

Summary

Nested classes

XML attributes

Constants

Inherited constants

Public constructors

Public methods

Protected methods

Inherited methods

XML attributes

android:imeExtractEnterAnimation

android:imeExtractExitAnimation

android:imeFullscreenBackground

Constants

BACK_DISPOSITION_ADJUST_NOTHING

BACK_DISPOSITION_DEFAULT

BACK_DISPOSITION_WILL_DISMISS

BACK_DISPOSITION_WILL_NOT_DISMISS

Public constructors

InputMethodService

Public methods

enableHardwareAcceleration

finishConnectionlessStylusHandwriting

finishStylusHandwriting

getBackDisposition

getCandidatesHiddenVisibility

getCurrentInputBinding

getCurrentInputConnection

getCurrentInputEditorInfo

getCurrentInputStarted

getInputMethodWindowRecommendedHeight

getLayoutInflater

getMaxWidth

getStylusHandwritingIdleTimeoutMax

getStylusHandwritingSessionTimeout

getStylusHandwritingWindow

getSystemService

getTextForImeAction

getWindow

hideStatusIcon

hideWindow

isExtractViewShown

isFullscreenMode

isInputViewShown

isShowInputRequested

onAppPrivateCommand

onBindInput

onComputeInsets

onConfigurationChanged

onConfigureWindow

onCreate

onCreateCandidatesView

onCreateExtractTextView

onCreateInlineSuggestionsRequest

onCreateInputMethodInterface

onCreateInputMethodSessionInterface

onCreateInputView

onCustomImeSwitcherButtonRequestedVisible

onDestroy

onDisplayCompletions

onEvaluateFullscreenMode

onEvaluateInputViewShown

onExtractTextContextMenuItem

onExtractedCursorMovement

onExtractedSelectionChanged

onExtractedTextClicked

onExtractingInputChanged

onFinishCandidatesView

onFinishInput

onFinishInputView

onFinishStylusHandwriting

onGenericMotionEvent

onInitializeInterface

onInlineSuggestionsResponse

onKeyDown