title: How to refresh preview on Android Studio 2.2?
body: <p>Now on <strong>Android Studio 2.2</strong> on new <strong>Preview</strong> mode, there are <strong>no more refresh button</strong>:</p>
  
  <p><a href="https://i.stack.imgur.com/cvFmR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/cvFmR.png" alt="enter image description here"></a></p>
  
  <ul>
  <li>Image 1: Preview on Android Studio 2.2 (without refresh button)</li>
  <li>Image 2: Preview on Android Studio 2.1 (with refresh button)</li>
  </ul>
  
  <blockquote>
    <p>Does anyone know how to display it again? Or with shortcut maybe?</p>
  </blockquote>
  
  <p><strong>Edit:</strong> If I change a drawable by example and that the change does not appear in the layout, the only method that works for me is closed and restart the project. If I close the layout and as I re-opens nothing happens. Same result using the "Synchronized" button.</p>