com.almeros.android.multitouch.gesturedetectors

Class RotateGestureDetector

java.lang.Object

com.almeros.android.multitouch.gesturedetectors.BaseGestureDetector

com.almeros.android.multitouch.gesturedetectors.TwoFingerGestureDetector

com.almeros.android.multitouch.gesturedetectors.RotateGestureDetector

public class RotateGestureDetector
extends TwoFingerGestureDetector

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RotateGestureDetector.OnRotateGestureListener Listener which must be implemented which is used by RotateGestureDetector to perform callbacks to any implementing class which is registered to a RotateGestureDetector via the constructor.
static class	RotateGestureDetector.SimpleOnRotateGestureListener Helper class which may be extended and where the methods may be implemented.

Field Summary

Fields inherited from class com.almeros.android.multitouch.gesturedetectors.TwoFingerGestureDetector

currFingerDiffX, currFingerDiffY, prevFingerDiffX, prevFingerDiffY

Fields inherited from class com.almeros.android.multitouch.gesturedetectors.BaseGestureDetector

context, currEvent, currPressure, gestureInProgress, PRESSURE_THRESHOLD, prevEvent, prevPressure, timeDelta

Constructor Summary

Constructors

Constructor and Description
RotateGestureDetector(android.content.Context context, RotateGestureDetector.OnRotateGestureListener listener)

Method Summary

Modifier and Type	Method and Description
float	getRotationDegreesDelta() Return the rotation difference from the previous rotate event to the current event.
protected void	handleInProgressEvent(int actionCode, android.view.MotionEvent event) Called when the current event occurred when a gesture IS in progress.
protected void	handleStartProgressEvent(int actionCode, android.view.MotionEvent event) Called when the current event occurred when NO gesture is in progress yet.
protected void	resetState()

Methods inherited from class com.almeros.android.multitouch.gesturedetectors.TwoFingerGestureDetector

determineFocalPoint, getCurrentSpan, getFocusX, getFocusY, getPreviousSpan, getRawX, getRawY, isSloppyGesture, updateStateByEvent

Methods inherited from class com.almeros.android.multitouch.gesturedetectors.BaseGestureDetector

getEventTime, getTimeDelta, isInProgress, onTouchEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RotateGestureDetector

public RotateGestureDetector(android.content.Context context,
                             RotateGestureDetector.OnRotateGestureListener listener)

Method Detail

handleStartProgressEvent

protected void handleStartProgressEvent(int actionCode,
                                        android.view.MotionEvent event)

Description copied from class: BaseGestureDetector

Called when the current event occurred when NO gesture is in progress yet. The handling in this implementation may set the gesture in progress (via gestureInProgress) or out of progress

Specified by:

handleStartProgressEvent in class TwoFingerGestureDetector

Parameters:

actionCode - Action Code from MotionEvent

event - MotionEvent

handleInProgressEvent

protected void handleInProgressEvent(int actionCode,
                                     android.view.MotionEvent event)

Description copied from class: BaseGestureDetector

Called when the current event occurred when a gesture IS in progress. The handling in this implementation may set the gesture out of progress (via gestureInProgress).

Specified by:

handleInProgressEvent in class TwoFingerGestureDetector

Parameters:

actionCode - Action Code from MotionEvent

event - MotionEvent

resetState

protected void resetState()

Overrides:

resetState in class BaseGestureDetector

getRotationDegreesDelta

public float getRotationDegreesDelta()

Return the rotation difference from the previous rotate event to the current event.

Returns:

The current rotation //difference in degrees.