motion_event_actions.java

/**
 * A pressed gesture has started, the
 * motion contains the initial starting location.
 */
public static final int ACTION_DOWN             = 0;

/**
 * A pressed gesture has finished, the
 * motion contains the final release location as well as any intermediate
 * points since the last down or move event.
 */
public static final int ACTION_UP               = 1;

/**
 * A change has happened during a
 * press gesture (between ACTION_DOWN and ACTION_UP).
 * The motion contains the most recent point, as well as any intermediate
 * points since the last down or move event.
 */
public static final int ACTION_MOVE             = 2;

/**
 * The current gesture has been aborted.
 * You will not receive any more points in it.  You should treat this as
 * an up event, but not perform any action that you normally would.
 */
public static final int ACTION_CANCEL           = 3;

/**
 * A movement has happened outside of the
 * normal bounds of the UI element.  This does not provide a full gesture,
 * but only the initial location of the movement/touch.
 */
public static final int ACTION_OUTSIDE          = 4;

/**
 * A non-primary pointer has gone down.  The bits in
 * ACTION_POINTER_ID_MASK indicate which pointer changed.
 */
public static final int ACTION_POINTER_DOWN     = 5;

/**
 * A non-primary pointer has gone up.  The bits in
 * ACTION_POINTER_ID_MASK indicate which pointer changed.
 */
public static final int ACTION_POINTER_UP       = 6;

/**
 * Bit mask of the parts of the action code that are the action itself.
 */
public static final int ACTION_MASK             = 0xff;