android 手势滑动，左右上下滑动（GestureDetector）

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 /**
     * 手势监听
     */
    private void gestureListener() {
        mDetector = new GestureDetector(this, new GestureDetector.OnGestureListener() {

            @Override
            public boolean onSingleTapUp(MotionEvent e) {
                // TODO Auto-generated method stub
                Log.e(TAG, "onSingleTapUp");
                return false;
            }

            @Override
            public void onShowPress(MotionEvent e) {
                // TODO Auto-generated method stub
                Log.e(TAG, "onShowPress");

            }

            @Override
            public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
                // TODO Auto-generated method stub
                Log.e(TAG, "onScroll");

                return false;
            }

            @Override
            public void onLongPress(MotionEvent e) {
                Log.e(TAG, "onLongPress");

                // 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(TAG, "向左滑...");
                   
                    return true;
                }
                if (e2.getX() - e1.getX() > FLIP_DISTANCE) {
                    Log.i(TAG, "向右滑...");
                
                    return true;
                }
                if (e1.getY() - e2.getY() > FLIP_DISTANCE) {
                    Log.i(TAG, "向上滑...");
                    return true;
                }
                if (e2.getY() - e1.getY() > FLIP_DISTANCE) {
                    Log.i(TAG, "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
                Log.e(TAG, "onDown");
                //刚刚手指接触到触摸屏的那一刹那，就是触的那一下。
                return true;
            }


        });


    }

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        gestureListener()

}


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