title: onUserInteraction not working in DialogPreference
body: <p>It is expected that <code>onUserInteraction</code> is being called for any user interaction. it works fine in <code>PreferenceActivity</code>. However, when a <code>DialogPreference</code> is popup, <code>onUserInteraction</code> is not called anymore even there is user interaction such as touch event.  </p>
  
  <p>It seems that  <code>DialogPreference</code> is not the only case. Whenever <code>Dialog</code> is shown, it does not report the user interaction to activity.</p>
  
  <p>But what can I do if I really need it. Thank You.</p>