149 lines
4.8 KiB
Dart
149 lines
4.8 KiB
Dart
import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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import 'package:intl/intl.dart' as intl;
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import 'app_locale_en.dart';
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import 'app_locale_ru.dart';
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/// Callers can lookup localized strings with an instance of AppLocale
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/// returned by `AppLocale.of(context)`.
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///
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/// Applications need to include `AppLocale.delegate()` in their app's
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/// `localizationDelegates` list, and the locales they support in the app's
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/// `supportedLocales` list. For example:
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///
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/// ```dart
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/// import 'l10n/app_locale.dart';
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///
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/// return MaterialApp(
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/// localizationsDelegates: AppLocale.localizationsDelegates,
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/// supportedLocales: AppLocale.supportedLocales,
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/// home: MyApplicationHome(),
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/// );
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/// ```
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///
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/// ## Update pubspec.yaml
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///
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/// Please make sure to update your pubspec.yaml to include the following
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/// packages:
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///
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/// ```yaml
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/// dependencies:
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/// # Internationalization support.
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/// flutter_localizations:
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/// sdk: flutter
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/// intl: any # Use the pinned version from flutter_localizations
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///
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/// # Rest of dependencies
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/// ```
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///
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/// ## iOS Applications
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///
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/// iOS applications define key application metadata, including supported
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/// locales, in an Info.plist file that is built into the application bundle.
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/// To configure the locales supported by your app, you’ll need to edit this
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/// file.
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///
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/// First, open your project’s ios/Runner.xcworkspace Xcode workspace file.
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/// Then, in the Project Navigator, open the Info.plist file under the Runner
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/// project’s Runner folder.
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///
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/// Next, select the Information Property List item, select Add Item from the
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/// Editor menu, then select Localizations from the pop-up menu.
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///
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/// Select and expand the newly-created Localizations item then, for each
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/// locale your application supports, add a new item and select the locale
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/// you wish to add from the pop-up menu in the Value field. This list should
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/// be consistent with the languages listed in the AppLocale.supportedLocales
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/// property.
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abstract class AppLocale {
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AppLocale(String locale) : localeName = intl.Intl.canonicalizedLocale(locale.toString());
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final String localeName;
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static AppLocale? of(BuildContext context) {
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return Localizations.of<AppLocale>(context, AppLocale);
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}
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static const LocalizationsDelegate<AppLocale> delegate = _AppLocaleDelegate();
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/// A list of this localizations delegate along with the default localizations
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/// delegates.
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///
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/// Returns a list of localizations delegates containing this delegate along with
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/// GlobalMaterialLocalizations.delegate, GlobalCupertinoLocalizations.delegate,
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/// and GlobalWidgetsLocalizations.delegate.
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///
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/// Additional delegates can be added by appending to this list in
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/// MaterialApp. This list does not have to be used at all if a custom list
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/// of delegates is preferred or required.
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static const List<LocalizationsDelegate<dynamic>> localizationsDelegates =
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<LocalizationsDelegate<dynamic>>[
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delegate,
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GlobalMaterialLocalizations.delegate,
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GlobalCupertinoLocalizations.delegate,
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GlobalWidgetsLocalizations.delegate,
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];
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/// A list of this localizations delegate's supported locales.
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static const List<Locale> supportedLocales = <Locale>[Locale('en'), Locale('ru')];
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/// No description provided for @search.
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///
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/// In ru, this message translates to:
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/// **'Поиск'**
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String get search;
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/// No description provided for @liked.
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///
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/// In ru, this message translates to:
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/// **'понравился!'**
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String get liked;
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/// No description provided for @disliked.
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///
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/// In ru, this message translates to:
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/// **'разонравился :('**
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String get disliked;
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/// No description provided for @arbEnding.
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///
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/// In ru, this message translates to:
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/// **'Чтобы не забыть про отсутствие запятой :)'**
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String get arbEnding;
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}
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class _AppLocaleDelegate extends LocalizationsDelegate<AppLocale> {
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const _AppLocaleDelegate();
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@override
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Future<AppLocale> load(Locale locale) {
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return SynchronousFuture<AppLocale>(lookupAppLocale(locale));
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}
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@override
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bool isSupported(Locale locale) => <String>['en', 'ru'].contains(locale.languageCode);
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@override
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bool shouldReload(_AppLocaleDelegate old) => false;
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}
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AppLocale lookupAppLocale(Locale locale) {
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// Lookup logic when only language code is specified.
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switch (locale.languageCode) {
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case 'en':
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return AppLocaleEn();
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case 'ru':
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return AppLocaleRu();
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}
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throw FlutterError(
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'AppLocale.delegate failed to load unsupported locale "$locale". This is likely '
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'an issue with the localizations generation tool. Please file an issue '
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'on GitHub with a reproducible sample app and the gen-l10n configuration '
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'that was used.');
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}
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