title: The method setMessage(String) is undefined for the type Dialog
body: <p>I'm creating a dialog, but I don't know how to edit the message.</p>
  
  <pre><code>Dialog d2 = new Dialog(this);
  d2.setTitle("title ok");
  d2.setMessage("error here");
  d2.show();
  </code></pre>
  
  <p>What function should I use?
  Thanks a lot <code>:)</code></p>