private boolean isDarkThemeSet(){
  SharedPreferences sharedPreferences=PreferenceManager.getDefaultSharedPreferences(getActivity());
  String key=getString(R.string.theme_preference_key);
  String defaultValue=getString(R.string.theme_preference_default_value);
  return Integer.valueOf(sharedPreferences.getString(key,defaultValue)) != 0;
}

private boolean isDarkThemeSet ( ) { SharedPreferences sharedPreferences = PreferenceManager . getDefaultSharedPreferences ( getActivity ( ) ) ; String key = getString ( R . string . theme_preference_key ) ; String defaultValue = getString ( R . string . theme_preference_default_value ) ; return Integer . valueOf ( sharedPreferences . getString ( key , defaultValue ) ) != 0 ; }
returns , whether the app uses the dark theme , or not .
