private Preference newAddServicePreferenceOrNull() {
   final Intent addNewServiceIntent = createAddNewServiceIntentOrNull();
   if (addNewServiceIntent == null) {
     return null;
   }
   Preference preference = new Preference(getPrefContext());
   preference.setTitle(R.string.print_menu_item_add_service);
   preference.setIcon(R.drawable.ic_menu_add);
   preference.setOrder(ORDER_LAST);
   preference.setIntent(addNewServiceIntent);
   preference.setPersistent(false);
   return preference;
 }