public MyHandler(PreferenceFragment fragment)
 {
     this.fragment = fragment;
 }
 public MyRunnable(PreferenceFragment fragment)
 {
     this.fragment = fragment;
 }
 /// <summary>
 /// Sets the owning preference fragment
 /// </summary>
 internal static void SetFragment(PreferenceManager manager, PreferenceFragment fragment)
 {
     // stub
 }