Application | API reference | Android Developers
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.