GestureDetector

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public class GestureDetector
extends Object

java.lang.Object
↳	android.view.GestureDetector

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Detects various gestures and events using the supplied MotionEvents. The OnGestureListener callback will notify users when a particular motion event has occurred. This class should only be used with MotionEvents reported via touch (don't use for trackball events). To use this class:

• Create an instance of the GestureDetector for your View
• In the View.onTouchEvent(MotionEvent) method ensure you call onTouchEvent(MotionEvent). The methods defined in your callback will be executed when the events occur.
• If listening for OnContextClickListener.onContextClick(MotionEvent) you must call onGenericMotionEvent(MotionEvent) in View.onGenericMotionEvent(MotionEvent).

Summary

Nested classes
interface	GestureDetector.OnContextClickListener The listener that is used to notify when a context click occurs.
interface	GestureDetector.OnDoubleTapListener The listener that is used to notify when a double-tap or a confirmed single-tap occur.
interface	GestureDetector.OnGestureListener The listener that is used to notify when gestures occur.
class	GestureDetector.SimpleOnGestureListener A convenience class to extend when you only want to listen for a subset of all the gestures.

Public constructors
GestureDetector(Context context, GestureDetector.OnGestureListener listener) Creates a GestureDetector with the supplied listener.
GestureDetector(Context context, GestureDetector.OnGestureListener listener, Handler handler) Creates a GestureDetector with the supplied listener that runs deferred events on the thread associated with the supplied Handler.
GestureDetector(Context context, GestureDetector.OnGestureListener listener, Handler handler, boolean unused) Creates a GestureDetector with the supplied listener that runs deferred events on the thread associated with the supplied Handler.
GestureDetector(GestureDetector.OnGestureListener listener) This constructor is deprecated. Use GestureDetector(Context,GestureDetector.OnGestureListener) instead.
GestureDetector(GestureDetector.OnGestureListener listener, Handler handler) This constructor is deprecated. Use GestureDetector(Context,GestureDetector.OnGestureListener,Handler) instead.

Public methods
boolean	isLongpressEnabled()
boolean	onGenericMotionEvent(