android上下左右滑动监听

GestureDetector mDetector;

@Overridepublic boolean onTouchEvent(MotionEvent event) {    return mDetector.onTouchEvent(event);}

@Overrideprotected void addAction() {    mDetector = new GestureDetector(this, new GestureDetector.OnGestureListener() {        @Override        public boolean onSingleTapUp(MotionEvent e) {            // TODO Auto-generated method stub  return false;        }        @Override        public void onShowPress(MotionEvent e) {            // TODO Auto-generated method stub   }        @Override        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {            // TODO Auto-generated method stub  return false;        }        @Override        public void onLongPress(MotionEvent e) {            // TODO Auto-generated method stub   }        /**  *  * e1 The first down motion event that started the fling. e2 The  * move motion event that triggered the current onFling.  */  @Override        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {            if (e1.getX() - e2.getX() > FLIP_DISTANCE) {                Log.i("MYTAG", "向左滑...");                return true;            }            if (e2.getX() - e1.getX() > FLIP_DISTANCE) {                Log.i("MYTAG", "向右滑...");                return true;            }            if (e1.getY() - e2.getY() > FLIP_DISTANCE) {                Log.i("MYTAG", "向上滑...");                return true;            }            if (e2.getY() - e1.getY() > FLIP_DISTANCE) {                Log.i("MYTAG", "向下滑...");                return true;            }            Log.d("TAG", e2.getX() + " " + e2.getY());            return false;        }        @Override        public boolean onDown(MotionEvent e) {            // TODO Auto-generated method stub  return false;        }    });}

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