protected void onResume() {
   super.onResume();
 }
 protected void onDestroy() {
   super.onDestroy();
 }
 protected void onCreate(Bundle icicle) {
   super.onCreate(icicle);
   getPreferenceManager().setSharedPreferencesName(NexusWallpaper.SHARED_PREFS_NAME);
   addPreferencesFromResource(R.xml.nexus_prefs);
 }