DragGestureRecognizer

Page Summary

• DragGestureRecognizer detects drag motions on the touch screen for user interaction in AR scenes.

• It provides a listener, OnGestureStartedListener, to respond when a drag gesture begins.

• The tryCreateGestures method is responsible for initiating drag gestures based on touch input and hit test results.

• It inherits functionality from BaseGestureRecognizer for managing gestures and touch events.

public class DragGestureRecognizer

Gesture Recognizer for when the user performs a drag motion on the touch screen.

Nested Classes

interface

DragGestureRecognizer.OnGestureStartedListener

Interface definition for a callbacks to be invoked when a DragGesture 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

DragGestureRecognizer(GesturePointersUtility gesturePointersUtility)

Protected Methods

void	tryCreateGestures(HitTestResult hitTestResult, MotionEvent motionEvent)

Inherited Methods

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

void	addOnGestureStartedListener(OnGestureStartedListener<DragGesture> listener)
void	onTouch(HitTestResult hitTestResult, MotionEvent motionEvent)
void	removeOnGestureStartedListener(OnGestureStartedListener<DragGesture> 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 DragGestureRecognizer (GesturePointersUtility gesturePointersUtility)

Parameters

gesturePointersUtility

Protected Methods

protected void tryCreateGestures (HitTestResult hitTestResult, MotionEvent motionEvent)

Parameters

hitTestResult
motionEvent