@Override
    public void onPause() {
        Log.i("Requesting settings backup with settings manager");
        BackupManager.dataChanged(getPackageName());
        super.onPause();
    }
This method sets the fragment given by its base key,
and optionally starts scrolling to a preference identified by its key
main/src/main/java/cgeo/geocaching/settings/SettingsActivity.java