Android Listview-仅在用户停止滚动时才将图像加载到项目中

Question

When the user scrolls quickly through items, it seems superfluous to start requesting images to populate those items. Afterall, the user is scrolling so fast, they will never be downloaded/shown in time. Is there any kind of method/event that first fires when the user has actually paused scrolling?

Answer 1

Try this code to detect scrolling stop :

setOnScrollListener(new OnScrollListener()
{
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) 
    {
        // TODO Auto-generated method stub
    }
    public void onScrollStateChanged(AbsListView view, int scrollState) 
    {
        // TODO Auto-generated method stub
        if(scrollState == 0) 
            Log.i("a", "scrolling stopped...");
    }
});