60 lines
1.8 KiB
Dart
60 lines
1.8 KiB
Dart
import "package:flutter/widgets.dart";
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import "package:photos/generated/l10n.dart";
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import "package:shared_preferences/shared_preferences.dart";
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extension AppLocalizationsX on BuildContext {
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S get l10n => S.of(this);
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}
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// list of locales which are enabled for auth app.
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// Add more language to the list only when at least 90% of the strings are
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// translated in the corresponding language.
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const List<Locale> appSupportedLocales = <Locale>[
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Locale('en'),
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Locale('es'),
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Locale("nl"),
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Locale("zh", "CN"),
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];
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Locale localResolutionCallBack(locales, supportedLocales) {
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for (Locale locale in locales) {
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if (appSupportedLocales.contains(locale)) {
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return locale;
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}
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}
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// if device language is not supported by the app, use en as default
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return const Locale('en');
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}
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Future<Locale> getLocale() async {
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final String? savedValue =
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(await SharedPreferences.getInstance()).getString('locale');
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// if savedLocale is not null and is supported by the app, return it
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if (savedValue != null) {
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late Locale savedLocale;
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if (savedValue.contains('_')) {
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final List<String> parts = savedValue.split('_');
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savedLocale = Locale(parts[0], parts[1]);
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} else {
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savedLocale = Locale(savedValue);
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}
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if (appSupportedLocales.contains(savedLocale)) {
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return savedLocale;
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}
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}
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return const Locale('en');
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}
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Future<void> setLocale(Locale locale) async {
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if (!appSupportedLocales.contains(locale)) {
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throw Exception('Locale $locale is not supported by the app');
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}
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final StringBuffer out = StringBuffer(locale.languageCode);
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if (locale.countryCode != null && locale.countryCode!.isNotEmpty) {
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out.write('_');
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out.write(locale.countryCode);
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}
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await (await SharedPreferences.getInstance())
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.setString('locale', out.toString());
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}
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