Android OnTouch 向上动作不会随着扫动而触发

Question

我在我的 gridview 中的图像视图上设置了一个 OnTouchListener，因此每次单击它时都会触发 ACTION DOWN 并且我会更改其单击版本的图像背景，因此它会模拟单击和 ACTION UP 我 return旧的

当我点击它时一切正常，但是当我稍微滑动它超出范围时，UP 事件不会发生并且图像保持不变。这对我来说似乎是合乎逻辑的，因为我没有释放触摸，而是将它滑出 imageview。我试图限制背景更改仅在单击位于视图边界内时发生，但没有任何效果，这是我的触摸侦听器事件：

imageView.setOnTouchListener(new OnSwipeTouchListener(mContext) {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                    // Log.i("IMAGE", "motion event: " + imageView.toString());
                switch (motionEvent.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                       ((ImageView) view).setImageResource(R.drawable.test01);
                       Log.i("IMAGE", "motion event: " + "Action down Inside");

                        //imageView.setBackgroundResource(0);
                        Log.i("IMAGE", "motion event: " + "Action down");
                        return true;
                    case MotionEvent.ACTION_UP:
                        try {
                            Thread.sleep(100);
                        } catch (InterruptedException e) {

                            e.printStackTrace();
                        }
                        ((ImageView)view).setImageResource(mThumbIds[position]);
                        Log.i("IMAGE", "motion event: " + "Action up");
                        return true;

                }
                return false;
            }

        });

这是我尝试其他方法的另一个版本：

imageView.setOnTouchListener(new OnSwipeTouchListener(mContext) {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                    // Log.i("IMAGE", "motion event: " + imageView.toString());
                switch (motionEvent.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                        Log.i("IMAGE", "xC: " + (int)motionEvent.getX() + "   yC:" + (int)motionEvent.getX());
                        if(isViewContains(view, (int)motionEvent.getX(), (int)motionEvent.getY())) {
                            ((ImageView) view).setImageResource(R.drawable.test01);
                            Log.i("IMAGE", "motion event: " + "Action down Inside");
                        }
                        //imageView.setBackgroundResource(0);
                        Log.i("IMAGE", "motion event: " + "Action down");
                        return true;
                    case MotionEvent.ACTION_UP:
                        try {
                            Thread.sleep(100);
                        } catch (InterruptedException e) {

                            e.printStackTrace();
                        }
                        ((ImageView)view).setImageResource(mThumbIds[position]);
                        Log.i("IMAGE", "motion event: " + "Action up");
                        return true;
                }
                return true;
            }
        });

这是我正在使用的功能

private boolean isViewContains(View view, int rx, int ry) {
        int[] l = new int[2];
        view.getLocationOnScreen(l);
        Rect rect = new Rect(view.getLeft(), view.getTop(), view.getRight(), view.getBottom());
        Log.i("IMAGE", "x: " + rx + "  y:" + ry);
        if(rect.contains(view.getLeft()+ rx, view.getTop() + ry)) {
                Log.i("IMAGE", "contains");
        }
        return rect.contains(view.getLeft()+ rx, view.getTop() + ry);
}

你有什么提示或建议吗？我要的是不管我怎么刷或者点原图到return.

Answer 1

在onTouch(View view, MotionEvent motionEvent)

中尝试MotionEvent.ACTION_CANCEL

Android OnTouch 向上动作不会随着扫动而触发

Android OnTouch action up not doesn't fire with sweeping

java

android

swipe

ontouchlistener