代码如下：

public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,

float velocityY) {

// TODO

if ((e1.getX() - e2.getX() > VALUE_DISTANCE)

&& Math.abs(velocityX) > VALUE_SPEED) {

moveNextOrPrevious(1);

Log.d("TAG","[+++++++++++][onFling][Fling left]");

} else if ((e2.getX() - e1.getX() > VALUE_DISTANCE)

&& Math.abs(velocityX) > VALUE_SPEED) {

moveNextOrPrevious(-1);

Log.d("TAG","[+++++++++++][onDown][Fling right]");

}

return true;

}