added in version 22.1.0
belongs to Maven artifact com.android.support:loader:28.0.0-alpha1

Summary: Ctors | Methods | Protected Methods | Inherited Methods | [Expand All]

AsyncTaskLoader

This package is part of the Android support library which is no longer maintained. The support library has been superseded by AndroidX which is part of Jetpack. We recommend using the AndroidX libraries in all new projects. You should also consider migrating existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library class mappings.

public abstract class AsyncTaskLoader
extends Loader<D>

java.lang.Object
↳	android.support.v4.content.Loader<D>
	↳	android.support.v4.content.AsyncTaskLoader<D>

Known Direct Subclasses CursorLoader CursorLoader Static library support version of the framework's CursorLoader.

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Static library support version of the framework's AsyncTaskLoader. Used to write apps that run on platforms prior to Android 3.0. When running on Android 3.0 or above, this implementation is still used; it does not try to switch to the framework's implementation. See the framework SDK documentation for a class overview.

Summary

Public constructors
AsyncTaskLoader(Context context)

Public methods
void	cancelLoadInBackground() Called on the main thread to abort a load in progress.
void	dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) Print the Loader's state into the given stream.
boolean	isLoadInBackgroundCanceled() Returns true if the current invocation of loadInBackground() is being canceled.
abstract D	loadInBackground() Called on a worker thread to perform the actual load and to return the result of the load operation.
void	onCanceled(D data) Called if the task was canceled before it was completed.
void	setUpdateThrottle(long delayMS) Set amount to throttle updates by.

Protected methods
boolean	onCancelLoad() Subclasses must implement this to take care of requests to cancelLoad().
void	onForceLoad() Subclasses must implement this to take care of requests to forceLoad().
D	onLoadInBackground() Calls loadInBackground().

Inherited methods

From class android.support.v4.content.Loader void abandon() This function will normally be called for you automatically by LoaderManager when restarting a Loader. boolean cancelLoad() Attempt to cancel the current load task. void commitContentChanged() Commit that you have actually fully processed a content change that was returned by takeContentChanged(). String dataToString(D data) For debugging, converts an instance of the Loader's data class to a string that can be printed. void deliverCancellation() Informs the registered Loader.OnLoadCanceledListener that the load has been canceled. void deliverResult(D data) Sends the result of the load to the registered listener. void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) Print the Loader's state into the given stream. void forceLoad() Force an asynchronous load. Context getContext()