@Override
 public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setHasOptionsMenu(true);
   mPreferences = Preferences.get(getActivity());
   if (savedInstanceState == null) {
     mDirectory = mPreferences.getBrowseDirectory();
   } else {
     mDirectory = savedInstanceState.getString(State.DIRECTORY);
   }
 }