BaseGesture

public abstract class BaseGesture

Known Direct Subclasses DragGesture, PinchGesture, TwistGesture DragGesture Gesture for when the user performs a drag motion on the touch screen.  PinchGesture Gesture for when the user performs a two-finger pinch motion on the touch screen.  TwistGesture Gesture for when the user performs a two-finger twist motion on the touch screen.

Base class for a gesture.

A gesture represents a sequence of touch events that are detected to represent a particular type of motion (i.e. Dragging, Pinching).

Gestures are created and updated by BaseGestureRecognizer's.

Nested Classes

interface

BaseGesture.OnGestureEventListener<T extends BaseGesture<T>>

Interface definition for callbacks to be invoked by a BaseGesture.

Fields

protected final GesturePointersUtility	gesturePointersUtility
protected Node	targetNode

Public Constructors

BaseGesture(GesturePointersUtility gesturePointersUtility)

Public Methods

Node	getTargetNode()
boolean	hasFinished()
boolean	hasStarted()
float	inchesToPixels(float inches)
boolean	justStarted()
void	onTouch(HitTestResult hitTestResult, MotionEvent motionEvent)
float	pixelsToInches(float pixels)
void	setGestureEventListener(OnGestureEventListener<T> listener)
boolean	wasCancelled()

Protected Methods

abstract boolean	canStart(HitTestResult hitTestResult, MotionEvent motionEvent)
void	cancel()
void	complete()
abstract T	getSelf()
abstract void	onCancel()
abstract void	onFinish()
abstract void	onStart(HitTestResult hitTestResult, MotionEvent motionEvent)
abstract boolean	updateGesture(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 Node targetNode

Public Constructors

public BaseGesture (GesturePointersUtility gesturePointersUtility)

Parameters

gesturePointersUtility

Public Methods

public Node getTargetNode ()

public boolean hasFinished ()

public boolean hasStarted ()

public float inchesToPixels (float inches)

Parameters

inches

public boolean justStarted ()

public void onTouch (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent

public float pixelsToInches (float pixels)

Parameters

pixels

public void setGestureEventListener (OnGestureEventListener<T> listener)

Parameters

listener

public boolean wasCancelled ()

Protected Methods

protected abstract boolean canStart (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent

protected void cancel ()

protected void complete ()

protected abstract T getSelf ()

protected abstract void onCancel ()

protected abstract void onFinish ()

protected abstract void onStart (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent

protected abstract boolean updateGesture (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent