title: How can I show title in PreferenceActivity
body: <p>I use <code>PreferenceActivity</code> as well as in this example for Tablets <a href="http://developer.android.com/guide/topics/ui/settings.html" rel="nofollow">Android from 4.0</a></p>
  
  <p>But it does not display the title in the header, how can these ads?</p>