RecyclerView 的孩子 onTouchEvent

Question

我正在使用 RecyclerView，最近我在应该打开 PopoupWindow 的每一行上添加了一个 3 点菜单。问题是我无法处理 3 点菜单图标上的触摸，因为该行消耗了触摸事件。我在搞乱 onInterceptTouchEvent 但我找不到检测菜单触摸的方法..

这基本上是我的 RecyclerView.OnItemTouchListener 代码：

    public class RecyclerItemTouchListener implements RecyclerView.OnItemTouchListener {


    @Override
    public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {

        View childView = view.findChildViewUnder(e.getX(), e.getY());

        //need a way to detect if the user touches the menu icon!!
        boolean touchOccurredOnMenu = ?????;

        if(childView != null && touchOccurredOnMenu) {

            //here the menu will handle the touch event
            return false;

        }


        //here the recycler item will handle the touch event
        return true;

    }

    @Override
    public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {

        Toast.makeText(getApplicationContext(), "touch on the row", Toast.LENGTH_SHORT).show();


    }
}

我在 RecyclerView.Adapter 的 onBindViewHolder 方法中为菜单图标设置了 touchListener，如下所示：

holder.overflowMenuIcon.setOnTouchListener(new View.OnTouchListener() {

    @Override
    public boolean onTouch(View v, MotionEvent event) {

        Toast.makeText(getApplicationContext(), "touch on the menu!!", Toast.LENGTH_SHORT).show();

        return false;
    }
});

Answer 1

在 RecyclerView 的行中添加溢出按钮时，我遇到了同样的问题。诀窍是，在您的手势检测器中，您获取被单击视图的视图，计算按钮的命中矩形坐标（在我的情况下为“溢出”），如果命中矩形包含事件坐标，则使用事件，否则你点击你的行。

mRecyclerView.addOnItemTouchListener(mTouchListener);
mGestureDetector = new GestureDetectorCompat(getActivity(), new RecyclerViewOnGestureListener());

与

private final RecyclerView.OnItemTouchListener mTouchListener = new RecyclerView.OnItemTouchListener() {
    @Override
    public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
        mGestureDetector.onTouchEvent(e);
        return false;
    }

    @Override
    public void onTouchEvent(RecyclerView rv, MotionEvent e) {
    }

    @Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
    }
};

和

private class RecyclerViewOnGestureListener extends GestureDetector.SimpleOnGestureListener {
    @Override
    public boolean onSingleTapConfirmed(MotionEvent e) {
        View view = mRecyclerView.findChildViewUnder(e.getX(), e.getY());
        RecyclerView.ViewHolder viewHolder = view != null ? mRecyclerView.getChildViewHolder(view) : null;
        View overflow = viewHolder != null ? ((DataViewHolder) viewHolder).mOverflow : null;
        if (overflow != null) {
            Rect rect = new Rect();
            overflow.getHitRect(rect);
            rect.top += view.getTop();
            rect.bottom += view.getTop();
            int x = (int) (e.getX() + .5f);
            int y = (int) (e.getY() + .5f);
            if (!rect.contains(x, y)) {
                onClick(view);
            }
            // else event consumed by overflow button
        } else {
            onClick(view);
        }
        return super.onSingleTapConfirmed(e);
    }

    public void onLongPress(MotionEvent e) {
    }
}