android上下左右滑动监听

小咪咪 2022-05-31 03:27 225阅读 0赞

GestureDetector **mDetector**;

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

@Override
    protected 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;
            }
        });
    }