title: How to prevent the RecyclerView from resorting while notifyDataSetChanged
body: <p>I use the StaggeredGridLayoutManager as the RecyclerView layout manager. When I try to load the next page data and then call notifyDataSetChanged method to update data, while I scroll the RecyclerView, I notice that I will resort my item.</p>
  
  <p>I really don't need to resort it, how I can do to prevent it from resorting. And I wonder why it will resort.</p>
  
  <p>Thx!</p>