title: Recyclerview notifyItemInserted not updating scrollbar
body: <p>I want to add items to my recyclerview and that my scrollbar is updated accordingly.</p>
  
  <p>Here is my RecyclerView :</p>
  
  <pre><code>&lt;android.support.v7.widget.RecyclerView
          android:id="@+id/recyclerView"
          android:layout_width="match_parent"
          android:layout_height="300dp"
          android:scrollbars="vertical"
          android:scrollbarThumbVertical="@color/clear_grey"
          android:fadeScrollbars="false"
          /&gt;
  </code></pre>
  
  <p>After adding an element to my dataset, I am calling </p>
  
  <pre><code>recyclerViewAdapter.notifyItemInserted(recyclerViewAdapter.getItemCount() - 1);
  </code></pre>
  
  <p>The problem is, the scrollbar is not updated : I have to touch the views for it to be updated.</p>
  
  <p>I was using </p>
  
  <pre><code>recyclerViewAdapter.notifyDataSetChanged();
  </code></pre>
  
  <p>The scrollbar is updated, but I can't use this solution. (I need to be able to select text from the views, which is impossible with notifyDataSetChanged.)</p>
  
  <p>Any ideas on how to update the scrollbar ?</p>