{"id":400251,"date":"2024-06-29T15:08:55","date_gmt":"2024-06-29T15:08:55","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=400251"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=400251","title":{"rendered":"<span>\u041a\u0430\u043a \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u043b\u043e\u043a\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e L10n c Riverpod \u0431\u0435\u0437 \u043e\u0448\u0438\u0431\u043e\u043a \u0441 HTTP Requests<\/span>"},"content":{"rendered":"<div><!--[--><!--]--><\/div>\n<div id=\"post-content-body\">\n<div>\n<div class=\"article-formatted-body article-formatted-body article-formatted-body_version-2\">\n<div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\">\n<h2>\u0421\u0442\u0430\u0442\u044c\u044f \u0434\u043b\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0449\u0438\u0445 \u0432 Riverpod<\/h2>\n<p>\u0414\u043e \u044d\u0442\u043e\u0433\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0441\u044f Provider \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e \u0441 BLoC \u0438 \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u0440\u0435\u0448\u0438\u043b\u0441\u044f \u043f\u043e\u043f\u0440\u043e\u0431\u043e\u0432\u0430\u0442\u044c Riverpod \u0432 \u043e\u0434\u043d\u043e\u043c \u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432. \u0412 \u0445\u043e\u0434\u0435 \u0440\u0430\u0431\u043e\u0442\u044b \u0441\u0442\u043e\u043b\u043a\u043d\u0443\u043b\u0441\u044f \u0441 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043e\u0439, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043d\u043e\u0433\u0438\u0435 \u043c\u043e\u0433\u0443\u0442 \u043d\u0435 \u0437\u0430\u043c\u0435\u0447\u0430\u0442\u044c.<\/p>\n<p>\u041f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 Logger \u0434\u043b\u044f Http \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043e\u043d \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u043b \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u0434\u0430\u0436\u0435 \u0435\u0441\u043b\u0438 \u0431\u044b\u043b \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u0435\u043d \u043b\u0438\u0448\u044c 1. \u0414\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043d\u0443\u0436\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440 \u0434\u043b\u044f Dio \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0443\u0436\u0435 \u0441 \u043d\u0438\u043c.<\/p>\n<p><strong>\u041f\u0435\u0440\u0432\u044b\u043c \u0434\u0435\u043b\u043e\u043c: \u0441\u043e\u0437\u0434\u0430\u0435\u043c localeProvider<\/strong><\/p>\n<pre><code class=\"dart\">final localeProvider = StateNotifierProvider&lt;LocaleNotifier, Locale>((ref) {   return LocaleNotifier(); });  class LocaleNotifier extends StateNotifier&lt;Locale> {   LocaleNotifier() : super(sharedPreference.locale) {     onAppStart();   }    void changeLanguage(Locale locale) {     try {       if (!L10n.all.contains(locale)) return;       state = locale;     } catch (error) {       state = sharedPreference.locale;     }   }    void onAppStart() {     try {       final locale = sharedPreference.locale;       state = locale;     } catch (error) {       state = const Locale('ru');     }   } }<\/code><\/pre>\n<p><strong>2.  \u0421\u043e\u0435\u0434\u0438\u043d\u044f\u0435\u043c \u0435\u0433\u043e \u0441 MaterialApp<\/strong><\/p>\n<p>\u041e\u0431\u0435\u0440\u0442\u044b\u0432\u0430\u0435\u043c \u043d\u0430\u0448 MyApp \u0432 <strong>ProviderScope() <\/strong>\u0438 \u0447\u0435\u0440\u0435\u0437 \u043c\u0435\u0442\u043e\u0434 <strong>watch<\/strong> &#171;\u0441\u043b\u0443\u0448\u0430\u0435\u043c&#187; \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u044f\u0437\u044b\u043a\u0430. \u0418 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c ProviderContainer \u0432 \u043d\u0430\u0448\u0435\u043c main.dart \u0444\u0430\u0439\u043b\u0435.<\/p>\n<p><code>final ProviderContainer container = ProviderContainer();<\/code><\/p>\n<pre><code class=\"dart\">  runApp(     ProviderScope(       child: WorkspaceApp(),     ),   );    Widget build(BuildContext context, WidgetRef ref) {     final locale = ref.watch(localeProvider);     return MaterialApp.router(       title: \"Workspace\",       locale: locale,       routerConfig: _router,       supportedLocales: L10n.all,       theme: LightTheme,       darkTheme: null,       debugShowCheckedModeBanner: false,       themeMode: ThemeMode.light,       localizationsDelegates: const [         AppLocalizations.delegate,         GlobalMaterialLocalizations.delegate,         GlobalCupertinoLocalizations.delegate,         GlobalWidgetsLocalizations.delegate,       ],       builder: EasyLoading.init(),     );   }<\/code><\/pre>\n<p><strong>3. HttpQuery \u0434\u043b\u044f get \u0437\u0430\u043f\u0440\u043e\u0441\u0430<\/strong><\/p>\n<p>\u0421\u043e\u0437\u0434\u0430\u0435\u043c http_query.dart \u0444\u0430\u0439\u043b \u0438 \u0432\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u043a\u043e\u0434 \u043d\u0438\u0436\u0435:<\/p>\n<pre><code class=\"dart\">import 'package:dio\/dio.dart'; import 'package:flutter\/material.dart'; import 'package:flutter_riverpod\/flutter_riverpod.dart'; import 'package:logger\/logger.dart'; import 'package:pretty_dio_logger\/pretty_dio_logger.dart';  class HttpQuery {    final dioProvider = Provider((ref) {     PrettyDioLogger logger = PrettyDioLogger(       requestHeader: true,       requestBody: true,       responseBody: false,       responseHeader: true,       error: true,       compact: true,       maxWidth: 100,     );     Dio dio = Dio(BaseOptions(baseUrl: '${sharedPreference.chosenServer}\/api\/'));     dio.interceptors.add(ErrorInterceptor());     dio.interceptors.add(logger);     return dio;   });      \/* ---------------------------------- HttpQuery ---------------------------------- *\/    Future&lt;dynamic> get(       {required String url, Map&lt;String, dynamic>? queryParameters, Map&lt;String, dynamic>? headerData}) async {     try {       container.read(dioProvider).interceptors.add(ErrorInterceptor());       container.read(dioProvider).interceptors.add(logger);       Map&lt;String, dynamic> header = {         \"Content-Type\": \"application\/json\",       };        Map&lt;String, dynamic> queryParameters1 = queryParameters ?? {};       String? token = await UserSecureStorage.getToken();       if (token != \"\") header.addAll({\"Authorization\": 'Bearer $token'});       if (headerData != null) header.addAll(headerData);       final Response result = await container.read(dioProvider).get(             url,             options: Options(               sendTimeout: 30000,               receiveTimeout: 60000,               headers: header,             ),             queryParameters: queryParameters1,           );       return result.data;     } on DioError catch (error) {       if (error.type == DioErrorType.connectTimeout) {         debugPrint(error.type.name);       }       if (error.type == DioErrorType.receiveTimeout) {         debugPrint(error.type.name);       }       return error;     }   } } <\/code><\/pre>\n<p>\u041d\u0430\u0448 dioProvider \u043c\u044b \u043c\u043e\u0436\u0435\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0437\u0430 \u043c\u0435\u0441\u0442\u043e getIt. \u0412 \u043d\u0435\u043c \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c \u0431\u0430\u0437\u043e\u0432\u044b\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b \u0434\u043b\u044f Dio, \u0432 \u043c\u043e\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u044f \u0432\u0441\u0442\u0430\u0432\u0438\u043b \u0442\u0443\u0434\u0430 \u0431\u0430\u0437\u043e\u0432\u043e\u0435 \u043d\u0430\u0447\u0430\u043b\u043e \u043c\u043e\u0438\u0445 url \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432.<\/p>\n<p>\u0418 \u0441\u043e\u0437\u0434\u0430\u0435\u043c providerContainer \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u0430 \u0431\u0435\u0437 WidgetRef. \u0414\u0430\u043b\u0435\u0435 \u0434\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430 Response \u043c\u044b \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c \u0437\u0430\u043f\u0440\u043e\u0441 \u0447\u0435\u0440\u0435\u0437 \u043d\u0430\u0448 dioProvider \u043f\u043e\u043b\u0443\u0447\u0430\u044f \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043d\u0435\u043c\u0443 \u0447\u0435\u0440\u0435\u0437 \u043d\u0430\u0448 providerContainer.<\/p>\n<p><strong>4. \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u044f\u0437\u044b\u043a\u0430<\/strong><\/p>\n<p>\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0432\u043c\u0435\u0441\u0442\u043e StatelessWidget &#8212; ConsumerWidget<\/p>\n<pre><code class=\"dart\">class LanguagePickerWidget extends ConsumerWidget {   const LanguagePickerWidget({Key? key}) : super(key: key);    @override   Widget build(BuildContext context, WidgetRef ref) {     final locale = ref.read(localeProvider);      return DropdownButtonHideUnderline(       child: DropdownButton(         value: locale,         icon: Container(width: 12),         items: L10n.all.map(           (locale) {             final flag = L10n.getFlag(locale.languageCode);              return DropdownMenuItem(               value: locale,               onTap: () {                 ref.read(localeProvider.notifier).changeLanguage(locale);               },               child: Center(                 child: Text(                   flag,                   style: const TextStyle(fontSize: 32),                 ),               ),             );           },         ).toList(),         onChanged: (_) {},       ),     );   } }<\/code><\/pre>\n<p>\u041f\u043e\u043b\u0443\u0447\u0430\u0435\u043c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043d\u0430\u0448\u0435\u043c\u0443 localeProvider \u0438 \u0447\u0435\u0440\u0435\u0437 \u043c\u0435\u0442\u043e\u0434 notifier, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u0442 \u0443\u0432\u0435\u0434\u043e\u043c\u043b\u0435\u043d\u0438\u044f \u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u043c\u044b \u043c\u0435\u043d\u044f\u0435\u043c \u043d\u0430\u0448 \u044f\u0437\u044b\u043a. <\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!----><!----><\/div>\n<p><!----><!----><br \/> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"https:\/\/habr.com\/ru\/articles\/729102\/\"> https:\/\/habr.com\/ru\/articles\/729102\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div><!--[--><!--]--><\/div>\n<div id=\"post-content-body\">\n<div>\n<div class=\"article-formatted-body article-formatted-body article-formatted-body_version-2\">\n<div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\">\n<h2>\u0421\u0442\u0430\u0442\u044c\u044f \u0434\u043b\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044e\u0449\u0438\u0445 \u0432 Riverpod<\/h2>\n<p>\u0414\u043e \u044d\u0442\u043e\u0433\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0441\u044f Provider \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e \u0441 BLoC \u0438 \u043d\u0435\u0434\u0430\u0432\u043d\u043e \u0440\u0435\u0448\u0438\u043b\u0441\u044f \u043f\u043e\u043f\u0440\u043e\u0431\u043e\u0432\u0430\u0442\u044c Riverpod \u0432 \u043e\u0434\u043d\u043e\u043c \u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432. \u0412 \u0445\u043e\u0434\u0435 \u0440\u0430\u0431\u043e\u0442\u044b \u0441\u0442\u043e\u043b\u043a\u043d\u0443\u043b\u0441\u044f \u0441 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043e\u0439, \u043a\u043e\u0442\u043e\u0440\u0443\u044e \u043c\u043d\u043e\u0433\u0438\u0435 \u043c\u043e\u0433\u0443\u0442 \u043d\u0435 \u0437\u0430\u043c\u0435\u0447\u0430\u0442\u044c.<\/p>\n<p>\u041f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 Logger \u0434\u043b\u044f Http \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043e\u043d \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u043b \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u0434\u0430\u0436\u0435 \u0435\u0441\u043b\u0438 \u0431\u044b\u043b \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u0435\u043d \u043b\u0438\u0448\u044c 1. \u0414\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043d\u0443\u0436\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440 \u0434\u043b\u044f Dio \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0443\u0436\u0435 \u0441 \u043d\u0438\u043c.<\/p>\n<p><strong>\u041f\u0435\u0440\u0432\u044b\u043c \u0434\u0435\u043b\u043e\u043c: \u0441\u043e\u0437\u0434\u0430\u0435\u043c localeProvider<\/strong><\/p>\n<pre><code class=\"dart\">final localeProvider = StateNotifierProvider&lt;LocaleNotifier, Locale>((ref) {   return LocaleNotifier(); });  class LocaleNotifier extends StateNotifier&lt;Locale> {   LocaleNotifier() : super(sharedPreference.locale) {     onAppStart();   }    void changeLanguage(Locale locale) {     try {       if (!L10n.all.contains(locale)) return;       state = locale;     } catch (error) {       state = sharedPreference.locale;     }   }    void onAppStart() {     try {       final locale = sharedPreference.locale;       state = locale;     } catch (error) {       state = const Locale('ru');     }   } }<\/code><\/pre>\n<p><strong>2.  \u0421\u043e\u0435\u0434\u0438\u043d\u044f\u0435\u043c \u0435\u0433\u043e \u0441 MaterialApp<\/strong><\/p>\n<p>\u041e\u0431\u0435\u0440\u0442\u044b\u0432\u0430\u0435\u043c \u043d\u0430\u0448 MyApp \u0432 <strong>ProviderScope() <\/strong>\u0438 \u0447\u0435\u0440\u0435\u0437 \u043c\u0435\u0442\u043e\u0434 <strong>watch<\/strong> &#171;\u0441\u043b\u0443\u0448\u0430\u0435\u043c&#187; \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u044f\u0437\u044b\u043a\u0430. \u0418 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c ProviderContainer \u0432 \u043d\u0430\u0448\u0435\u043c main.dart \u0444\u0430\u0439\u043b\u0435.<\/p>\n<p><code>final ProviderContainer container = ProviderContainer();<\/code><\/p>\n<pre><code class=\"dart\">  runApp(     ProviderScope(       child: WorkspaceApp(),     ),   );    Widget build(BuildContext context, WidgetRef ref) {     final locale = ref.watch(localeProvider);     return MaterialApp.router(       title: \"Workspace\",       locale: locale,       routerConfig: _router,       supportedLocales: L10n.all,       theme: LightTheme,       darkTheme: null,       debugShowCheckedModeBanner: false,       themeMode: ThemeMode.light,       localizationsDelegates: const [         AppLocalizations.delegate,         GlobalMaterialLocalizations.delegate,         GlobalCupertinoLocalizations.delegate,         GlobalWidgetsLocalizations.delegate,       ],       builder: EasyLoading.init(),     );   }<\/code><\/pre>\n<p><strong>3. HttpQuery \u0434\u043b\u044f get \u0437\u0430\u043f\u0440\u043e\u0441\u0430<\/strong><\/p>\n<p>\u0421\u043e\u0437\u0434\u0430\u0435\u043c http_query.dart \u0444\u0430\u0439\u043b \u0438 \u0432\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u043a\u043e\u0434 \u043d\u0438\u0436\u0435:<\/p>\n<pre><code class=\"dart\">import 'package:dio\/dio.dart'; import 'package:flutter\/material.dart'; import 'package:flutter_riverpod\/flutter_riverpod.dart'; import 'package:logger\/logger.dart'; import 'package:pretty_dio_logger\/pretty_dio_logger.dart';  class HttpQuery {    final dioProvider = Provider((ref) {     PrettyDioLogger logger = PrettyDioLogger(       requestHeader: true,       requestBody: true,       responseBody: false,       responseHeader: true,       error: true,       compact: true,       maxWidth: 100,     );     Dio dio = Dio(BaseOptions(baseUrl: '${sharedPreference.chosenServer}\/api\/'));     dio.interceptors.add(ErrorInterceptor());     dio.interceptors.add(logger);     return dio;   });      \/* ---------------------------------- HttpQuery ---------------------------------- *\/    Future&lt;dynamic> get(       {required String url, Map&lt;String, dynamic>? queryParameters, Map&lt;String, dynamic>? headerData}) async {     try {       container.read(dioProvider).interceptors.add(ErrorInterceptor());       container.read(dioProvider).interceptors.add(logger);       Map&lt;String, dynamic> header = {         \"Content-Type\": \"application\/json\",       };        Map&lt;String, dynamic> queryParameters1 = queryParameters ?? {};       String? token = await UserSecureStorage.getToken();       if (token != \"\") header.addAll({\"Authorization\": 'Bearer $token'});       if (headerData != null) header.addAll(headerData);       final Response result = await container.read(dioProvider).get(             url,             options: Options(               sendTimeout: 30000,               receiveTimeout: 60000,               headers: header,             ),             queryParameters: queryParameters1,           );       return result.data;     } on DioError catch (error) {       if (error.type == DioErrorType.connectTimeout) {         debugPrint(error.type.name);       }       if (error.type == DioErrorType.receiveTimeout) {         debugPrint(error.type.name);       }       return error;     }   } } <\/code><\/pre>\n<p>\u041d\u0430\u0448 dioProvider \u043c\u044b \u043c\u043e\u0436\u0435\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0437\u0430 \u043c\u0435\u0441\u0442\u043e getIt. \u0412 \u043d\u0435\u043c \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u043c \u0431\u0430\u0437\u043e\u0432\u044b\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b \u0434\u043b\u044f Dio, \u0432 \u043c\u043e\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u044f \u0432\u0441\u0442\u0430\u0432\u0438\u043b \u0442\u0443\u0434\u0430 \u0431\u0430\u0437\u043e\u0432\u043e\u0435 \u043d\u0430\u0447\u0430\u043b\u043e \u043c\u043e\u0438\u0445 url \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432.<\/p>\n<p>\u0418 \u0441\u043e\u0437\u0434\u0430\u0435\u043c providerContainer \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u0430 \u0431\u0435\u0437 WidgetRef. \u0414\u0430\u043b\u0435\u0435 \u0434\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430 Response \u043c\u044b \u043e\u0442\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u043c \u0437\u0430\u043f\u0440\u043e\u0441 \u0447\u0435\u0440\u0435\u0437 \u043d\u0430\u0448 dioProvider \u043f\u043e\u043b\u0443\u0447\u0430\u044f \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043d\u0435\u043c\u0443 \u0447\u0435\u0440\u0435\u0437 \u043d\u0430\u0448 providerContainer.<\/p>\n<p><strong>4. \u0418\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u044f\u0437\u044b\u043a\u0430<\/strong><\/p>\n<p>\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0432\u043c\u0435\u0441\u0442\u043e StatelessWidget &#8212; ConsumerWidget<\/p>\n<pre><code class=\"dart\">class LanguagePickerWidget extends ConsumerWidget {   const LanguagePickerWidget({Key? key}) : super(key: key);    @override   Widget build(BuildContext context, WidgetRef ref) {     final locale = ref.read(localeProvider);      return DropdownButtonHideUnderline(       child: DropdownButton(         value: locale,         icon: Container(width: 12),         items: L10n.all.map(           (locale) {             final flag = L10n.getFlag(locale.languageCode);              return DropdownMenuItem(               value: locale,               onTap: () {                 ref.read(localeProvider.notifier).changeLanguage(locale);               },               child: Center(                 child: Text(                   flag,                   style: const TextStyle(fontSize: 32),                 ),               ),             );           },         ).toList(),         onChanged: (_) {},       ),     );   } }<\/code><\/pre>\n<p>\u041f\u043e\u043b\u0443\u0447\u0430\u0435\u043c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u043d\u0430\u0448\u0435\u043c\u0443 localeProvider \u0438 \u0447\u0435\u0440\u0435\u0437 \u043c\u0435\u0442\u043e\u0434 notifier, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u0442 \u0443\u0432\u0435\u0434\u043e\u043c\u043b\u0435\u043d\u0438\u044f \u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u043c\u044b \u043c\u0435\u043d\u044f\u0435\u043c \u043d\u0430\u0448 \u044f\u0437\u044b\u043a. <\/p>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!----><!----><\/div>\n<p><!----><!----><br \/> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"https:\/\/habr.com\/ru\/articles\/729102\/\"> https:\/\/habr.com\/ru\/articles\/729102\/<\/a><br \/><\/br><\/br><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-400251","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/400251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=400251"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/400251\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=400251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=400251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=400251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}