@Override
 protected void onStart() {
   oldLocation = ManagePreferences.location();
   oldTextSize = ManagePreferences.textSize();
   oldSplitBlank = ManagePreferences.splitBlankIns();
   super.onStart();
 }
 @Override
 protected void onStop() {
   super.onStop();
   String location = ManagePreferences.location();
   String textSize = ManagePreferences.textSize();
   boolean splitBlank = ManagePreferences.splitBlankIns();
   if (splitBlank != oldSplitBlank) SmsMessageQueue.getInstance().splitDelimChange();
   if (!location.equals(oldLocation) || !textSize.equals(oldTextSize)) {
     SmsMessageQueue.getInstance().notifyDataChange();
   }
 }