title: How can I achieve an actionbar SearchView like Gmail
body: <p>On gmail when you click the search button the actionbar turns white and there is a dropdown of previous searches.</p>
  
  <p>This is not what you get with SearchView as a menu item. Is there a library or something similar to acheive this?</p>
  
  <pre><code> &lt;item
          android:id="@+id/search"
          android:orderInCategory="100"
          android:title="@string/search_hint"
          app:actionViewClass="android.support.v7.widget.SearchView"
          android:icon="@drawable/ic_head_search24"
          app:showAsAction="always"/&gt;
  </code></pre>