android.support.v4.view
Class MotionEventCompat

java.lang.Object
  android.support.v4.view.MotionEventCompat

public class MotionEventCompat
extends Object

Helper for accessing features in MotionEvent introduced after API level 4 in a backwards compatible fashion.

Field Summary

static int	ACTION_HOVER_ENTER Constant for getActionMasked(android.view.MotionEvent): The pointer is not down but has entered the boundaries of a window or view.
static int	ACTION_HOVER_EXIT Constant for getActionMasked(android.view.MotionEvent): The pointer is not down but has exited the boundaries of a window or view.
static int	ACTION_HOVER_MOVE Synonym for MotionEvent.ACTION_HOVER_MOVE.
static int	ACTION_MASK Synonym for MotionEvent.ACTION_MASK.
static int	ACTION_POINTER_DOWN Synonym for MotionEvent.ACTION_POINTER_DOWN.
static int	ACTION_POINTER_INDEX_MASK Synonym for MotionEvent.ACTION_POINTER_INDEX_MASK.
static int	ACTION_POINTER_INDEX_SHIFT Synonym for MotionEvent.ACTION_POINTER_INDEX_SHIFT.
static int	ACTION_POINTER_UP Synonym for MotionEvent.ACTION_POINTER_UP.
static int	ACTION_SCROLL Synonym for MotionEvent.ACTION_SCROLL.

Constructor Summary

MotionEventCompat()

Method Summary

static int	findPointerIndex(android.view.MotionEvent event, int pointerId) Call MotionEvent.findPointerIndex(int).
static int	getActionIndex(android.view.MotionEvent event) Call MotionEvent.getAction(), returning only the pointer index portion
static int	getActionMasked(android.view.MotionEvent event) Call MotionEvent.getAction(), returning only the ACTION_MASK portion.
static int	getPointerCount(android.view.MotionEvent event) The number of pointers of data contained in this event.
static int	getPointerId(android.view.MotionEvent event, int pointerIndex) Call MotionEvent.getPointerId(int).
static float	getX(android.view.MotionEvent event, int pointerIndex) Call MotionEvent.getX(int).
static float	getY(android.view.MotionEvent event, int pointerIndex) Call MotionEvent.getY(int).

Methods inherited from class java.lang.Object

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

Field Detail

ACTION_MASK

public static final int ACTION_MASK

Synonym for MotionEvent.ACTION_MASK.

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Constant Field Values

ACTION_POINTER_DOWN

public static final int ACTION_POINTER_DOWN

Synonym for MotionEvent.ACTION_POINTER_DOWN.

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Constant Field Values

ACTION_POINTER_UP

public static final int ACTION_POINTER_UP

Synonym for MotionEvent.ACTION_POINTER_UP.

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Constant Field Values

ACTION_HOVER_MOVE

public static final int ACTION_HOVER_MOVE

Synonym for MotionEvent.ACTION_HOVER_MOVE.

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Constant Field Values

ACTION_SCROLL

public static final int ACTION_SCROLL

Synonym for MotionEvent.ACTION_SCROLL.

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Constant Field Values

ACTION_POINTER_INDEX_MASK

public static final int ACTION_POINTER_INDEX_MASK

Synonym for MotionEvent.ACTION_POINTER_INDEX_MASK.

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Constant Field Values

ACTION_POINTER_INDEX_SHIFT

public static final int ACTION_POINTER_INDEX_SHIFT

Synonym for MotionEvent.ACTION_POINTER_INDEX_SHIFT.

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Constant Field Values

ACTION_HOVER_ENTER

public static final int ACTION_HOVER_ENTER

Constant for getActionMasked(android.view.MotionEvent): The pointer is not down but has entered the boundaries of a window or view.

This action is always delivered to the window or view under the pointer.

This action is not a touch event so it is delivered to View.onGenericMotionEvent(MotionEvent) rather than View.onTouchEvent(MotionEvent).

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Constant Field Values

ACTION_HOVER_EXIT

public static final int ACTION_HOVER_EXIT

Constant for getActionMasked(android.view.MotionEvent): The pointer is not down but has exited the boundaries of a window or view.

This action is always delivered to the window or view that was previously under the pointer.

This action is not a touch event so it is delivered to View.onGenericMotionEvent(MotionEvent) rather than View.onTouchEvent(MotionEvent).

See Also:

Constant Field Values

Constructor Detail

MotionEventCompat

public MotionEventCompat()

Method Detail

getActionMasked

public static int getActionMasked(android.view.MotionEvent event)

Call MotionEvent.getAction(), returning only the ACTION_MASK portion.

getActionIndex

public static int getActionIndex(android.view.MotionEvent event)

Call MotionEvent.getAction(), returning only the pointer index portion

findPointerIndex

public static int findPointerIndex(android.view.MotionEvent event,
                                   int pointerId)

Call MotionEvent.findPointerIndex(int). If running on a pre-Build.VERSION_CODES.ECLAIR device, does nothing and returns -1.

getPointerId

public static int getPointerId(android.view.MotionEvent event,
                               int pointerIndex)

Call MotionEvent.getPointerId(int). If running on a pre-Build.VERSION_CODES.ECLAIR device, IndexOutOfBoundsException is thrown.

getX

public static float getX(android.view.MotionEvent event,
                         int pointerIndex)

Call MotionEvent.getX(int). If running on a pre-Build.VERSION_CODES.ECLAIR device, IndexOutOfBoundsException is thrown.

getY

public static float getY(android.view.MotionEvent event,
                         int pointerIndex)

Call MotionEvent.getY(int). If running on a pre-Build.VERSION_CODES.ECLAIR device, IndexOutOfBoundsException is thrown.

getPointerCount

public static int getPointerCount(android.view.MotionEvent event)

The number of pointers of data contained in this event. Always >= 1.