76 lines
2.2 KiB
Dart
76 lines
2.2 KiB
Dart
import 'package:flutter/cupertino.dart';
|
|
import 'package:shared_preferences/shared_preferences.dart';
|
|
|
|
// list of locales which are enabled for auth app.
|
|
// Add more language to the list only when at least 90% of the strings are
|
|
// translated in the corresponding language.
|
|
const List<Locale> appSupportedLocales = <Locale>[
|
|
Locale('de'),
|
|
Locale('en'),
|
|
Locale('es', 'ES'),
|
|
Locale('fa'),
|
|
Locale('fr'),
|
|
Locale('it'),
|
|
Locale('ja'),
|
|
Locale('nl'),
|
|
Locale('pl'),
|
|
Locale('pt', 'BR'),
|
|
Locale('ru'),
|
|
Locale('tr'),
|
|
Locale("zh", "CN"),
|
|
];
|
|
|
|
Locale localResolutionCallBack(locales, supportedLocales) {
|
|
Locale? languageCodeMatch;
|
|
final Map<String, Locale> languageCodeToLocale = {
|
|
for (Locale supportedLocale in appSupportedLocales)
|
|
supportedLocale.languageCode: supportedLocale,
|
|
};
|
|
|
|
for (Locale locale in locales) {
|
|
if (appSupportedLocales.contains(locale)) {
|
|
return locale;
|
|
}
|
|
|
|
if (languageCodeMatch == null &&
|
|
languageCodeToLocale.containsKey(locale.languageCode)) {
|
|
languageCodeMatch = languageCodeToLocale[locale.languageCode];
|
|
}
|
|
}
|
|
|
|
// Return the first language code match or default to 'en'
|
|
return languageCodeMatch ?? const Locale('en');
|
|
}
|
|
|
|
Future<Locale> getLocale() async {
|
|
final String? savedValue =
|
|
(await SharedPreferences.getInstance()).getString('locale');
|
|
// if savedLocale is not null and is supported by the app, return it
|
|
if (savedValue != null) {
|
|
late Locale savedLocale;
|
|
if (savedValue.contains('_')) {
|
|
final List<String> parts = savedValue.split('_');
|
|
savedLocale = Locale(parts[0], parts[1]);
|
|
} else {
|
|
savedLocale = Locale(savedValue);
|
|
}
|
|
if (appSupportedLocales.contains(savedLocale)) {
|
|
return savedLocale;
|
|
}
|
|
}
|
|
return const Locale('en');
|
|
}
|
|
|
|
Future<void> setLocale(Locale locale) async {
|
|
if (!appSupportedLocales.contains(locale)) {
|
|
throw Exception('Locale $locale is not supported by the app');
|
|
}
|
|
final StringBuffer out = StringBuffer(locale.languageCode);
|
|
if (locale.countryCode != null && locale.countryCode!.isNotEmpty) {
|
|
out.write('_');
|
|
out.write(locale.countryCode);
|
|
}
|
|
await (await SharedPreferences.getInstance())
|
|
.setString('locale', out.toString());
|
|
}
|