title: Etsy Staggered gridview android smoothScrollToPosition
body: <p>I have to implement a smoothScrollToPosition with Eatsy Staggered gridview but the Gridview method doesn't work. How can I do a method that simulate the smooth scroll to a specific cell?</p>
  
  <pre><code>getActivity().runOnUiThread(new Runnable() {
                  @Override
                  public void run() {
  
                      if(*myCondition*){
  
                         adapter.notifyDataSetChanged();
                         gridView.smoothScrollToPosition(position);
  
                      }
  
                  }
  
  }
  </code></pre>
  
  <p>With standard GridView smoothScrollToPosition works fine, not works with Staggered.</p>
  
  <pre><code>gridView.setSelection(position);
  </code></pre>
  
  <p>not work correctly, the cells change their position and if I scroll the grid manually restore their correct position (with standard grid view works fine, so I think the problem isn't my code but the library)</p>