public
abstract
class
RecognitionService
extends Service
| java.lang.Object | ||||
| ↳ | android.content.Context | |||
| ↳ | android.content.ContextWrapper | |||
| ↳ | android.app.Service | |||
| ↳ | android.speech.RecognitionService | |||
This class provides a base class for recognition service implementations. This class should be extended only in case you wish to implement a new speech recognizer. Please note that the implementation of this service is stateless.
Nested classes | |
|---|---|
class |
RecognitionService.Callback
This class receives callbacks from the speech recognition service and forwards them to the user. |
class |
RecognitionService.SupportCallback
This class receives callbacks from the speech recognition service and forwards them to the user. |
Constants | |
|---|---|
String |
SERVICE_INTERFACE
The |
String |
SERVICE_META_DATA
Name under which a RecognitionService component publishes information about itself. |
Inherited constants |
|---|
Public constructors | |
|---|---|
RecognitionService()
|
|
Public methods | |
|---|---|
Context
|
createContext(ContextParams contextParams)
Creates a context with specific properties and behaviors. |
int
|
getMaxConcurrentSessionsCount()
Returns the maximal number of recognition sessions ongoing at the same time. |
final
IBinder
|
onBind(Intent intent)
Return the communication channel to the service. |
void
|
onCheckRecognitionSupport(Intent recognizerIntent, RecognitionService.SupportCallback supportCallback)
Queries the service on whether it would support a |
void
|
onCheckRecognitionSupport(Intent recognizerIntent, AttributionSource attributionSource, RecognitionService.SupportCallback supportCallback)
Queries the service on whether it would support a |
void
|
onDestroy()
Called by the system to notify a Service that it is no longer used and is being removed. |
void
|
onTriggerModelDownload(Intent recognizerIntent, AttributionSource attributionSource, ModelDownloadListener listener)
Requests the download of the recognizer support for |
void
|
onTriggerModelDownload(Intent recognizerIntent, AttributionSource attributionSource)
Requests the download of the recognizer support for |
void
|
onTriggerModelDownload(Intent recognizerIntent)
Requests the download of the recognizer support for |
Protected methods | |
|---|---|
abstract
void
|
onCancel(RecognitionService.Callback listener)
Notifies the service that it should cancel the speech recognition. |
abstract
void
|
onStartListening(Intent recognizerIntent, RecognitionService.Callback listener)
Notifies the service that it should start listening for speech. |
abstract
void
|
onStopListening(RecognitionService.Callback listener)
Notifies the service that it should stop listening for speech. |
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(Intent,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(Intent,int,Executor,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(Intent,ServiceConnection,int,UserHandle)
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
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.
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()
String
getAttributionTag()
Attribution can be used in complex apps to logically separate parts of the app.
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
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.
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(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
isUiContext()
Returns true if the context is a UI context which can access UI components such as
WindowManager, LayoutInflater or
WallpaperManager.
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
rebindService(ServiceConnection conn, Context.BindServiceFlags flags)
Rebind an application service with updated bind service flags
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(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(Intent,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(Intent,String,BroadcastReceiver,Handler,int,String,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(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(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(Intent,String,BroadcastReceiver,Handler,int,String,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(Intent[],Bundle) with no options
specified.
void
startActivity(Intent intent)
Same as startActivity(Intent,Bundle) with no options
specified.
void
startActivity(Intent intent, Bundle options)
Launch a new activity.
ComponentName
startForegroundService(Intent service)
Similar to startService(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(IntentSender,Intent,int,int,int,Bundle)
with no options specified.
void
startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options)
Like startActivity(Intent,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(ComponentCallbacks).
void
unregisterDeviceIdChangeListener(IntConsumer listener)
Removes a device ID changed listener from the Context.
void
unregisterReceiver(BroadcastReceiver receiver)
Unregister a previously registered BroadcastReceiver.
void
updateServiceBindings(Collection<Context.UpdateBindingParams> params)
Perform a batch update of existing bindings.
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.
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(Intent,int,String,Executor,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(Intent,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(Intent,int,Executor,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(Intent,ServiceConnection,int,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(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.
Context.BindServiceFlags
getUpdateableFlags()
Gets the list of bind flags that may be updated (i.e.
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
rebindService(ServiceConnection conn, Context.BindServiceFlags flags)
Rebind an application service with updated bind service flags
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(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(Intent,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(Intent,String,BroadcastReceiver,Handler,int,String,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(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(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(Intent,String,BroadcastReceiver,Handler,int,String,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(Intent[],Bundle) with no options
specified.
abstract
void
startActivity(Intent intent)
Same as startActivity(Intent,Bundle) with no options
specified.
abstract
void
startActivity(Intent intent, Bundle options)
Launch a new activity.
abstract
ComponentName
startForegroundService(Intent service)
Similar to startService(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(IntentSender,Intent,int,int,int,Bundle)
with no options specified.
abstract
void
startIntentSender(IntentSender intent, Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, Bundle options)
Like startActivity(Intent,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(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
updateServiceBindings(Collection<Context.UpdateBindingParams> params)
Perform a batch update of existing bindings.
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.
public static final String SERVICE_INTERFACE
The Intent that must be declared as handled by the service.
Constant Value: "android.speech.RecognitionService"
public static final String SERVICE_META_DATA
Name under which a RecognitionService component publishes information about itself.
This meta-data should reference an XML resource containing a
< or
recognition-service>< tag.on-device-recognition-service
>
Constant Value: "android.speech"
public RecognitionService ()
public Context createContext (ContextParams contextParams)
Creates a context with specific properties and behaviors.
| Parameters | |
|---|---|
contextParams |
ContextParams: This value cannot be null. |
| Returns | |
|---|---|
Context |
This value cannot be null. |
public int getMaxConcurrentSessionsCount ()
Returns the maximal number of recognition sessions ongoing at the same time.
The default value is 1, meaning concurrency should be enabled by overriding this method.
| Returns | |
|---|---|
int |
|
public final IBinder onBind (Intent intent)
Return the communication channel to the service. May return null if
clients can not bind to the service. The returned
IBinder is usually for a complex interface
that has been described using
aidl.
Note that unlike other application components, calls on to the IBinder interface returned here may not happen on the main thread of the process. More information about the main thread can be found in Processes and Threads.
| Parameters | |
|---|---|
intent |
Intent: The Intent that was used to bind to this service,
as given to Context.bindService. Note that any extras that were included with
the Intent at that point will not be seen here. |
| Returns | |
|---|---|
IBinder |
Return an IBinder through which clients can call on to the service. |
public void onCheckRecognitionSupport (Intent recognizerIntent, RecognitionService.SupportCallback supportCallback)
Queries the service on whether it would support a onStartListening(Intent,Callback)
for the same recognizerIntent.
The service will notify the caller about the level of support or error via
SupportCallback.
If the service does not offer the support check it will notify the caller with
SpeechRecognizer.ERROR_CANNOT_CHECK_SUPPORT.
| Parameters | |
|---|---|
recognizerIntent |
Intent: This value cannot be null. |
supportCallback |
RecognitionService.SupportCallback: This value cannot be null. |
public void onCheckRecognitionSupport (Intent recognizerIntent, AttributionSource attributionSource, RecognitionService.SupportCallback supportCallback)
Queries the service on whether it would support a onStartListening(Intent,Callback)
for the same recognizerIntent.
The service will notify the caller about the level of support or error via
SupportCallback.
If the service does not offer the support check it will notify the caller with
SpeechRecognizer.ERROR_CANNOT_CHECK_SUPPORT.
Provides the calling AttributionSource to the service implementation so that permissions and bandwidth could be correctly blamed.
| Parameters | |
|---|---|
recognizerIntent |
Intent: This value cannot be null. |
attributionSource |
AttributionSource: This value cannot be null. |
supportCallback |
RecognitionService.SupportCallback: This value cannot be null. |
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.
public void onTriggerModelDownload (Intent recognizerIntent,
AttributionSource attributionSource,
ModelDownloadListener listener)Requests the download of the recognizer support for recognizerIntent.
Provides the calling AttributionSource to the service implementation so that
permissions and bandwidth could be correctly blamed.
ModelDownloadListener:
ModelDownloadListener.onSuccess() will be
called directly. The model can be safely used afterwards.
RecognitionService has started the download,
ModelDownloadListener.onProgress(int) will be called an unspecified (zero or more)
number of times until the download is complete.
When the download finishes, ModelDownloadListener.onSuccess() will be called.
The model can be safely used afterwards.
RecognitionService has only scheduled the download, but won't satisfy it
immediately, ModelDownloadListener.onScheduled() will be called.
There will be no further updates on this listener.
ModelDownloadListener.onError(int) will be called.
| Parameters | |
|---|---|
recognizerIntent |
Intent: contains parameters for the recognition to be performed. The intent
may also contain optional extras, see RecognizerIntent.
This value cannot be null. |
attributionSource |
AttributionSource: the attribution source of the caller.
This value cannot be null. |
listener |
ModelDownloadListener: on which to receive updates about the model download request.
This value cannot be null. |
public void onTriggerModelDownload (Intent recognizerIntent, AttributionSource attributionSource)
Requests the download of the recognizer support for recognizerIntent.
Provides the calling AttributionSource to the service implementation so that permissions and bandwidth could be correctly blamed.
| Parameters | |
|---|---|
recognizerIntent |
Intent: This value cannot be null. |
attributionSource |
AttributionSource: This value cannot be null. |
public void onTriggerModelDownload (Intent recognizerIntent)
Requests the download of the recognizer support for recognizerIntent.
| Parameters | |
|---|---|
recognizerIntent |
Intent: This value cannot be null. |
protected abstract void onCancel (RecognitionService.Callback listener)
Notifies the service that it should cancel the speech recognition.
| Parameters | |
|---|---|
listener |
RecognitionService.Callback |
protected abstract void onStartListening (Intent recognizerIntent, RecognitionService.Callback listener)
Notifies the service that it should start listening for speech.
If you are recognizing speech from the microphone, in this callback you should create an attribution context for the caller such that when you access the mic the caller would be properly blamed (and their permission checked in the process) for accessing the microphone and that you served as a proxy for this sensitive data (and your permissions would be checked in the process). You should also open the mic in this callback via the attribution context and close the mic before returning the recognized result. If you don't do that then the caller would be blamed and you as being a proxy as well as you would get one more blame on yourself when you open the microphone.
Context attributionContext = context.createContext(new ContextParams.Builder()
.setNextAttributionSource(callback.getCallingAttributionSource())
.build());
AudioRecord recorder = AudioRecord.Builder()
.setContext(attributionContext);
. . .
.build();
recorder.startRecording()
| Parameters | |
|---|---|
recognizerIntent |
Intent: contains parameters for the recognition to be performed. The intent
may also contain optional extras, see RecognizerIntent. If these values are
not set explicitly, default values should be used by the recognizer. |
listener |
RecognitionService.Callback: that will receive the service's callbacks |
protected abstract void onStopListening (RecognitionService.Callback listener)
Notifies the service that it should stop listening for speech. Speech captured so far should be recognized as if the user had stopped speaking at this point. This method is only called if the application calls it explicitly.
| Parameters | |
|---|---|
listener |
RecognitionService.Callback |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2026-07-01 UTC.