TwistGestureRecognizer

Page Summary

• TwistGestureRecognizer detects two-finger twist motions on a touchscreen for user interaction in AR scenes.

• It provides a listener to be notified when a twist gesture begins (OnGestureStartedListener).

• It inherits functionalities from BaseGestureRecognizer to manage gestures and touch events.

• Developers can use tryCreateGestures to handle gesture creation based on hitTestResult and motionEvent.

public class TwistGestureRecognizer

Gesture Recognizer for when the user performs a two-finger twist motion on the touch screen.

Nested Classes

interface

TwistGestureRecognizer.OnGestureStartedListener

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

Inherited Fields

From class com.google.ar.sceneform.ux.BaseGestureRecognizer

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

Public Constructors

TwistGestureRecognizer(GesturePointersUtility gesturePointersUtility)

Protected Methods

void	tryCreateGestures(HitTestResult hitTestResult, MotionEvent motionEvent)

Inherited Methods

From class com.google.ar.sceneform.ux.BaseGestureRecognizer

void	addOnGestureStartedListener(OnGestureStartedListener<TwistGesture> listener)
void	onTouch(HitTestResult hitTestResult, MotionEvent motionEvent)
void	removeOnGestureStartedListener(OnGestureStartedListener<TwistGesture> listener)
abstract void	tryCreateGestures(HitTestResult hitTestResult, MotionEvent motionEvent)

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()

Public Constructors

public TwistGestureRecognizer (GesturePointersUtility gesturePointersUtility)

Parameters

gesturePointersUtility

Protected Methods

protected void tryCreateGestures (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent