BaseGestureRecognizer

public abstract class BaseGestureRecognizer

Known Direct Subclasses DragGestureRecognizer, PinchGestureRecognizer, TwistGestureRecognizer DragGestureRecognizer Gesture Recognizer for when the user performs a drag motion on the touch screen.  PinchGestureRecognizer Gesture Recognizer for when the user performs a two-finger pinch motion on the touch screen.  TwistGestureRecognizer Gesture Recognizer for when the user performs a two-finger twist motion on the touch screen.

Base class for all Gesture Recognizers (i.e. DragGestureRecognizer).

A Gesture recognizer processes touch input to determine if a gesture should start and fires an event when the gesture is started.

To determine when an gesture is finished/updated, listen to the events on the gesture object.

Nested Classes

interface

BaseGestureRecognizer.OnGestureStartedListener<T extends BaseGesture<T>>

Interface definition for a callbacks to be invoked when a BaseGesture starts.

Fields

protected final GesturePointersUtility	gesturePointersUtility
protected final ArrayList<T extends BaseGesture<T>>	gestures

Public Constructors

BaseGestureRecognizer(GesturePointersUtility gesturePointersUtility)

Public Methods

void	addOnGestureStartedListener(OnGestureStartedListener<T> listener)
void	onTouch(HitTestResult hitTestResult, MotionEvent motionEvent)
void	removeOnGestureStartedListener(OnGestureStartedListener<T> listener)

Protected Methods

abstract void

tryCreateGestures(HitTestResult hitTestResult, MotionEvent motionEvent)

Inherited Methods

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

Fields

protected final GesturePointersUtility gesturePointersUtility

protected final ArrayList<T extends BaseGesture<T>> gestures

Public Constructors

public BaseGestureRecognizer (GesturePointersUtility gesturePointersUtility)

Parameters

gesturePointersUtility

Public Methods

public void addOnGestureStartedListener (OnGestureStartedListener<T> listener)

Parameters

listener

public void onTouch (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent

public void removeOnGestureStartedListener (OnGestureStartedListener<T> listener)

Parameters

listener

Protected Methods

protected abstract void tryCreateGestures (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent