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added in version 22.1.0

android.support.v4.content

Interfaces

Loader.OnLoadCanceledListener<D> Interface that is implemented to discover when a Loader has been canceled before it finished loading its data. 
Loader.OnLoadCompleteListener<D> Interface that is implemented to discover when a Loader has finished loading its data. 

Classes

AsyncTaskLoader<D> Static library support version of the framework's AsyncTaskLoader
ContentResolverCompat Helper for accessing features in ContentResolver in a backwards compatible fashion. 
ContextCompat Helper for accessing features in Context
CursorLoader Static library support version of the framework's CursorLoader
FileProvider FileProvider is a special subclass of ContentProvider that facilitates secure sharing of files associated with an app by creating a content:// Uri for a file instead of a file:/// Uri
IntentCompat Helper for accessing features in Intent
Loader<D> Static library support version of the framework's Loader
Loader.ForceLoadContentObserver An implementation of a ContentObserver that takes care of connecting it to the Loader to have the loader re-load its data when the observer is told it has changed. 
LocalBroadcastManager Helper to register for and send broadcasts of Intents to local objects within your process. 
MimeTypeFilter Provides utility methods for matching MIME type filters used in ContentProvider. 
PermissionChecker This class provides permission check APIs that verify both the permission and the associated app op for this permission if such is defined. 
SharedPreferencesCompat This class was deprecated in API level 27.1.0. This compatibility class is no longer required. Use SharedPreferences directly.  
SharedPreferencesCompat.EditorCompat This class was deprecated in API level 27.1.0. This compatibility class is no longer required. Use SharedPreferences.Editor directly.  
WakefulBroadcastReceiver This class was deprecated in API level 26.1.0. As of Android O, background check restrictions make this class no longer generally useful. (It is generally not safe to start a service from the receipt of a broadcast, because you don't have any guarantees that your app is in the foreground at this point and thus allowed to do so.) Instead, developers should use android.app.job.JobScheduler to schedule a job, and this does not require that the app hold a wake lock while doing so (the system will take care of holding a wake lock for the job).