translate method
Call this function at where you want to translate the app like by pressing the button or any actions.
Implementation
void translate(
String languageCode, {
String countryCode = '',
bool save = true,
}) {
if (languageCode == _currentLocale?.languageCode) return;
if (save) TranslatorUtil.setLocale(languageCode, countryCode);
_currentLocale = Locale(languageCode, countryCode);
_delegate = TranslatorDelegate(_currentLocale);
if (onTranslatedLanguage != null) onTranslatedLanguage!(_currentLocale);
}