fluttermiddlepodcast · Mar 2, 2026
diff --git a/lib/features/app_update/bloc/app_update_bloc.dart b/lib/features/app_update/bloc/app_update_bloc.dart
@@ -0,0 +1,32 @@
+import 'package:bloc_example/features/app_update/bloc/app_update_event.dart';
+import 'package:bloc_example/features/app_update/bloc/app_update_state.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class AppUpdateBloc extends Bloc<AppUpdateEvent, AppUpdateState> {
+  AppUpdateBloc() : super(AppUpdateStateLoading()) {
+    on<AppUpdateEventInit>(_onInit);
+    on<AppUpdateEventSkip>(_onSkip);
+  }
+
+  void _onInit(_, Emitter<AppUpdateState> emit) {
+    if (const bool.fromEnvironment('APP_UPDATE_ERROR')) {
+      emit(AppUpdateStateError());
+    } else {
+      emit(
+        AppUpdateStateLoaded(
+          needUpdate: const bool.fromEnvironment('APP_UPDATE'),
+          forceUpdate: const bool.fromEnvironment('APP_UPDATE_FORCE'),
+        ),
+      );
+    }
+  }
+
+  void _onSkip(_, Emitter<AppUpdateState> emit) async {
+    emit(
+      AppUpdateStateLoaded(
+        needUpdate: false,
+        forceUpdate: false,
+      ),
+    );
+  }
+}
diff --git a/lib/features/app_update/bloc/app_update_event.dart b/lib/features/app_update/bloc/app_update_event.dart
@@ -0,0 +1,5 @@
+sealed class AppUpdateEvent {}
+
+class AppUpdateEventInit extends AppUpdateEvent {}
+
+class AppUpdateEventSkip extends AppUpdateEvent {}
diff --git a/lib/features/app_update/bloc/app_update_state.dart b/lib/features/app_update/bloc/app_update_state.dart
@@ -0,0 +1,15 @@
+sealed class AppUpdateState {}
+
+class AppUpdateStateLoading extends AppUpdateState {}
+
+class AppUpdateStateLoaded extends AppUpdateState {
+  final bool needUpdate;
+  final bool forceUpdate;
+
+  AppUpdateStateLoaded({
+    required this.needUpdate,
+    required this.forceUpdate,
+  });
+}
+
+class AppUpdateStateError extends AppUpdateState {}
diff --git a/lib/features/app_update/widgets/app_update_view.dart b/lib/features/app_update/widgets/app_update_view.dart
@@ -0,0 +1,65 @@
+import 'package:flutter/material.dart';
+
+class AppUpdateView extends StatelessWidget {
+  final String message;
+  final bool isForceUpdate;
+  final VoidCallback onUpdate;
+  final VoidCallback onSkip;
+
+  const AppUpdateView({
+    required this.message,
+    required this.isForceUpdate,
+    required this.onUpdate,
+    required this.onSkip,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(24.0),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(
+            Icons.update_rounded,
+            size: 128,
+          ),
+          SizedBox(height: 20),
+          Text(
+            'Доступна новая версия',
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.bold,
+            ),
+            textAlign: TextAlign.center,
+          ),
+          SizedBox(height: 12),
+          Text(
+            message,
+            textAlign: TextAlign.center,
+            style: TextStyle(fontSize: 16),
+          ),
+          SizedBox(height: 30),
+          ElevatedButton(
+            onPressed: () {},
+            style: ElevatedButton.styleFrom(
+              minimumSize: Size(
+                double.infinity,
+                50,
+              ),
+            ),
+            child: Text('Обновить'),
+          ),
+          if (!isForceUpdate) ...[
+            SizedBox(height: 10),
+            TextButton(
+              onPressed: onSkip,
+              child: Text('Позже'),
+            ),
+          ],
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/features/home/home_page.dart b/lib/features/home/home_page.dart
@@ -1,4 +1,8 @@
 import 'package:bloc_example/core/di/di.dart';
+import 'package:bloc_example/features/app_update/bloc/app_update_bloc.dart';
+import 'package:bloc_example/features/app_update/bloc/app_update_event.dart';
+import 'package:bloc_example/features/app_update/bloc/app_update_state.dart';
+import 'package:bloc_example/features/app_update/widgets/app_update_view.dart';
 import 'package:bloc_example/features/profile/bloc/profile_bloc.dart';
 import 'package:bloc_example/features/profile/bloc/profile_bloc_state.dart';
 import 'package:bloc_example/features/users/bloc/users_bloc.dart';
@@ -7,6 +11,7 @@ import 'package:bloc_example/features/users/repository/users_repository.dart';
 import 'package:bloc_example/features/users/widgets/users_list.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:url_launcher/url_launcher_string.dart';
 
 class HomePage extends StatelessWidget {
   const HomePage({super.key});
@@ -19,15 +24,63 @@ class HomePage extends StatelessWidget {
           'BLoC Example',
         ),
       ),
-      body: BlocProvider<UsersBloc>(
-        create: (_) => UsersBloc(
-          usersRepository: di.get<UsersRepository>(),
-        ),
-        child: BlocListener<ProfileBloc, ProfileBlocState>(
+      body: MultiBlocProvider(
+        providers: [
+          BlocProvider<UsersBloc>(
+            create: (_) => UsersBloc(
+              usersRepository: di.get<UsersRepository>(),
+            ),
+          ),
+          BlocProvider<AppUpdateBloc>(
+            create: (_) => AppUpdateBloc()..add(AppUpdateEventInit()),
+          ),
+        ],
+        child: BlocListener<AppUpdateBloc, AppUpdateState>(
           listener: (context, state) {
-            context.read<UsersBloc>().add(UsersBlocEventRefresh());
+            if (state is AppUpdateStateLoaded) {
+              if (state.needUpdate) {
+                showModalBottomSheet(
+                  context: context,
+                  isDismissible: !state.forceUpdate,
+                  enableDrag: !state.forceUpdate,
+                  builder: (_) {
+                    return PopScope(
+                      canPop: !state.forceUpdate,
+                      onPopInvokedWithResult: (didPop, __) {
+                        if (!didPop) {
+                          return;
+                        }
+
+                        context.read<AppUpdateBloc>().add(AppUpdateEventSkip());
+                      },
+                      child: AppUpdateView(
+                        message: state.forceUpdate
+                            ? 'Для дальнейшего использования приложения необходимо его обновить!'
+                            : 'Новая версия уже доступна в вашем магазине приложений!',
+                        isForceUpdate: state.forceUpdate,
+                        onUpdate: () {
+                          launchUrlString(
+                            'https://github.com/fluttermiddlepodcast/bloc_example',
+                          );
+                        },
+                        onSkip: () {
+                          context.read<AppUpdateBloc>().add(AppUpdateEventSkip());
+
+                          Navigator.of(context).pop();
+                        },
+                      ),
+                    );
+                  },
+                );
+              }
+            }
           },
-          child: const UsersList(),
+          child: BlocListener<ProfileBloc, ProfileBlocState>(
+            listener: (context, state) {
+              context.read<UsersBloc>().add(UsersBlocEventRefresh());
+            },
+            child: const UsersList(),
+          ),
         ),
       ),
     );

diff --git a/pubspec.lock b/pubspec.lock
@@ -291,6 +291,11 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   frontend_server_client:
     dependency: transitive
     description:
@@ -784,6 +789,70 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  url_launcher:
+    dependency: "direct main"
+    description:
+      name: url_launcher
+      sha256: f6a7e5c4835bb4e3026a04793a4199ca2d14c739ec378fdfe23fc8075d0439f8
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.2"
+  url_launcher_android:
+    dependency: transitive
+    description:
+      name: url_launcher_android
+      sha256: "767344bf3063897b5cf0db830e94f904528e6dd50a6dfaf839f0abf509009611"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.28"
+  url_launcher_ios:
+    dependency: transitive
+    description:
+      name: url_launcher_ios
+      sha256: "580fe5dfb51671ae38191d316e027f6b76272b026370708c2d898799750a02b0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.4.1"
+  url_launcher_linux:
+    dependency: transitive
+    description:
+      name: url_launcher_linux
+      sha256: d5e14138b3bc193a0f63c10a53c94b91d399df0512b1f29b94a043db7482384a
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.2"
+  url_launcher_macos:
+    dependency: transitive
+    description:
+      name: url_launcher_macos
+      sha256: "368adf46f71ad3c21b8f06614adb38346f193f3a59ba8fe9a2fd74133070ba18"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.5"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      sha256: "552f8a1e663569be95a8190206a38187b531910283c3e982193e4f2733f01029"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      sha256: d0412fcf4c6b31ecfdb7762359b7206ffba3bbffd396c6d9f9c4616ece476c1f
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  url_launcher_windows:
+    dependency: transitive
+    description:
+      name: url_launcher_windows
+      sha256: "712c70ab1b99744ff066053cbe3e80c73332b38d46e5e945c98689b2e66fc15f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.5"
   vector_math:
     dependency: transitive
     description:
@@ -858,4 +927,4 @@ packages:
     version: "3.1.3"
 sdks:
   dart: ">=3.10.0 <4.0.0"
-  flutter: ">=3.27.0"
+  flutter: ">=3.38.0"
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -21,6 +21,7 @@ dependencies:
   rxdart: 0.28.0
 
   collection:
+  url_launcher:
 
 dev_dependencies:
   flutter_test: