isSupported method
Whether resources for the given locale can be loaded by this delegate.
Return true if the instance of T
loaded by this delegate's load
method supports the given locale
's language.
Implementation
@override
bool isSupported(Locale locale) {
return languages.map((e) {
final results = e.value.split('_');
if (results.isNotEmpty) return results.first;
}).contains(locale.languageCode);
}