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friflex_flutter_starter/lib/app/app.dart

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import 'package:flutter/material.dart';
import 'package:friflex_starter/app/app_context_ext.dart';
import 'package:friflex_starter/app/app_providers.dart';
import 'package:friflex_starter/app/depends_providers.dart';
import 'package:friflex_starter/app/theme/app_theme.dart';
import 'package:friflex_starter/app/theme/theme_notifier.dart';
import 'package:friflex_starter/di/di_container.dart';
import 'package:friflex_starter/features/error/error_screen.dart';
import 'package:friflex_starter/features/splash/splash_screen.dart';
import 'package:friflex_starter/l10n/gen/app_localizations.dart';
import 'package:friflex_starter/l10n/localization_notifier.dart';
import 'package:go_router/go_router.dart';
/// Класс приложения
class App extends StatefulWidget {
const App({
super.key,
required this.router,
required this.initDependencies,
});
/// Роутер приложения
final GoRouter router;
/// Функция для инициализации зависимостей
final Future<DiContainer> Function() initDependencies;
@override
State<App> createState() => _AppState();
}
class _AppState extends State<App> {
/// Мутабельная Future для инициализации зависимостей
late Future<DiContainer> _initFuture;
@override
void initState() {
super.initState();
_initFuture = widget.initDependencies();
}
@override
Widget build(BuildContext context) {
return AppProviders(
// Consumer для локализации добавляем выше чем DependsProviders
// чтобы при изменении локализации перестраивался весь виджет
// Но, это не обязательно, можно добавить в DependsProviders
child: LocalizationConsumer(
builder: () => FutureBuilder<DiContainer>(
future: _initFuture,
builder: (_, snapshot) {
switch (snapshot.connectionState) {
case ConnectionState.none:
case ConnectionState.waiting:
case ConnectionState.active:
// Пока инициализация показываем Splash
return const SplashScreen();
case ConnectionState.done:
if (snapshot.hasError) {
return ErrorScreen(
error: snapshot.error,
stackTrace: snapshot.stackTrace,
onRetry: _retryInit,
);
}
final diContainer = snapshot.data;
if (diContainer == null) {
return ErrorScreen(
error:
'Ошибка инициализации зависимостей, diContainer = null',
stackTrace: null,
onRetry: _retryInit,
);
}
return DependsProviders(
diContainer: diContainer,
child: ThemeConsumer(
builder: () => _App(router: widget.router),
),
);
}
},
),
),
);
}
void _retryInit() {
setState(() {
_initFuture = widget.initDependencies();
});
}
}
class _App extends StatelessWidget {
const _App({required this.router});
final GoRouter router;
@override
Widget build(BuildContext context) {
return MaterialApp.router(
routerConfig: router,
darkTheme: AppTheme.dark,
theme: AppTheme.light,
themeMode: context.theme.themeMode,
locale: context.localization.locale,
localizationsDelegates: AppLocalizations.localizationsDelegates,
supportedLocales: AppLocalizations.supportedLocales,
);
}
}