弹出菜单显示时停止列表视图滚动

Question

I have a listview whose each item has a button. When clicking an item's button, I would like to show a popupmenu has many options (about 8 options).

The problem is when the popupmenu showing up, the listview scrolls along to it so it distract from what item was clicking on. Please help!

My code for showing the popup menu:

// 'view' is the button in a row
private void showPopupMenu(final View view){ 
    PopupMenu popupMenu = new PopupMenu(getContext(), view);
    popupMenu.getMenuInflater().inflate(R.menu.menu_popup, popupMenu.getMenu());
    popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem item) {
            if (mMenuItemClickListener != null){
                int position = (int) view.getTag();
                return mMenuItemClickListener.onMenuItemClick(item, (int) getItemId(position), position);
            }

            return false;
        }
    });
    popupMenu.show();
}

Answer 1

Create a method like below:

private void stopScroll(AbsListView view)
{
    try
    {
        Field field = android.widget.AbsListView.class.getDeclaredField("mFlingRunnable");
        field.setAccessible(true);
        Object flingRunnable = field.get(view);
        if (flingRunnable != null)
        {
            Method method = Class.forName("android.widget.AbsListView$FlingRunnable").getDeclaredMethod("endFling");
            method.setAccessible(true);
            method.invoke(flingRunnable);
        }
    }
    catch (Exception e) {}
}

Whenever/wherever you want to stop scrolling just call this method like this stopScroll(listView);