Merge pull request #87 from GetStream/chore/update-package-lints

chore: update package lints and apply fixes

packages/imessage/lib/channel_preview.dart

@@ -5,8 +5,6 @@ import 'package:imessage/utils.dart';
 import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart'
     show Channel;
 
-import 'utils.dart';
-
 class ChannelPreview extends StatelessWidget {
   final VoidCallback onTap;
   final Channel channel;

packages/stream_chat_v1/analysis_options.yaml

@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

packages/stream_chat_v1/lib/app.dart

@@ -45,12 +45,14 @@ StreamChatClient buildStreamChatClient(
   )..chatPersistenceClient = chatPersistentClient;
 }
 
-class MyApp extends StatefulWidget {
+class StreamChatSampleApp extends StatefulWidget {
+  const StreamChatSampleApp({super.key});
+
   @override
-  _MyAppState createState() => _MyAppState();
+  State<StreamChatSampleApp> createState() => _StreamChatSampleAppState();
 }
 
-class _MyAppState extends State<MyApp>
+class _StreamChatSampleAppState extends State<StreamChatSampleApp>
     with SplashScreenStateMixin, TickerProviderStateMixin {
   InitData? _initData;
 
@@ -58,7 +60,7 @@ class _MyAppState extends State<MyApp>
     String? apiKey, userId, token;
 
     if (!kIsWeb) {
-      final secureStorage = FlutterSecureStorage();
+      const secureStorage = FlutterSecureStorage();
       apiKey = await secureStorage.read(key: kStreamApiKey);
       userId = await secureStorage.read(key: kStreamUserId);
       token = await secureStorage.read(key: kStreamToken);
@@ -95,7 +97,7 @@ class _MyAppState extends State<MyApp>
             forwardAnimations();
           });
         } else {
-          Future.delayed(Duration(milliseconds: 1500)).then((value) {
+          Future.delayed(const Duration(milliseconds: 1500)).then((value) {
             forwardAnimations();
           });
         }
@@ -157,7 +159,7 @@ class _MyAppState extends State<MyApp>
                 }
                 return [
                   AppRoutes.generateRoute(
-                    RouteSettings(
+                    const RouteSettings(
                       name: Routes.CHOOSE_USER,
                     ),
                   )!

packages/stream_chat_v1/lib/main.dart

@@ -19,7 +19,7 @@ void main() async {
     }
   };
 
-  Future<void> _reportError(dynamic error, StackTrace stackTrace) async {
+  Future<void> reportError(dynamic error, StackTrace stackTrace) async {
     // Print the exception to the console.
     if (kDebugMode) {
       // Print the full stacktrace in debug mode.
@@ -36,8 +36,8 @@ void main() async {
       await SentryFlutter.init(
         (options) => options.dsn = sentryDsn,
       );
-      runApp(MyApp());
+      runApp(const StreamChatSampleApp());
     },
-    _reportError,
+    reportError,
   );
 }

packages/stream_chat_v1/lib/pages/advanced_options_page.dart

@@ -10,8 +10,10 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 import 'choose_user_page.dart';
 
 class AdvancedOptionsPage extends StatefulWidget {
+  const AdvancedOptionsPage({super.key});
+
   @override
-  _AdvancedOptionsPageState createState() => _AdvancedOptionsPageState();
+  State<AdvancedOptionsPage> createState() => _AdvancedOptionsPageState();
 }
 
 class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
@@ -88,7 +90,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                           .textHighEmphasis,
                     ),
                     decoration: InputDecoration(
-                      errorStyle: TextStyle(height: 0, fontSize: 0),
+                      errorStyle: const TextStyle(height: 0, fontSize: 0),
                       labelStyle: TextStyle(
                         fontSize: 14,
                         fontWeight: FontWeight.bold,
@@ -110,7 +112,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     ),
                     textInputAction: TextInputAction.next,
                   ),
-                  SizedBox(height: 8),
+                  const SizedBox(height: 8),
                   TextFormField(
                     controller: _userIdController,
                     onChanged: (_) {
@@ -139,7 +141,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     ),
                     textInputAction: TextInputAction.next,
                     decoration: InputDecoration(
-                      errorStyle: TextStyle(height: 0, fontSize: 0),
+                      errorStyle: const TextStyle(height: 0, fontSize: 0),
                       labelStyle: TextStyle(
                         fontWeight: FontWeight.bold,
                         fontSize: 14,
@@ -160,7 +162,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                           : AppLocalizations.of(context).userId,
                     ),
                   ),
-                  SizedBox(height: 8),
+                  const SizedBox(height: 8),
                   TextFormField(
                     onChanged: (_) {
                       if (_userTokenError != null) {
@@ -189,7 +191,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     ),
                     textInputAction: TextInputAction.next,
                     decoration: InputDecoration(
-                      errorStyle: TextStyle(height: 0, fontSize: 0),
+                      errorStyle: const TextStyle(height: 0, fontSize: 0),
                       labelStyle: TextStyle(
                         fontWeight: FontWeight.bold,
                         fontSize: 14,
@@ -210,7 +212,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                           : AppLocalizations.of(context).userToken,
                     ),
                   ),
-                  SizedBox(height: 8),
+                  const SizedBox(height: 8),
                   TextFormField(
                     controller: _usernameController,
                     textInputAction: TextInputAction.done,
@@ -231,7 +233,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                       labelText: AppLocalizations.of(context).usernameOptional,
                     ),
                   ),
-                  Spacer(),
+                  const Spacer(),
                   ElevatedButton(
                     style: ButtonStyle(
                       backgroundColor: MaterialStateProperty.all<Color>(
@@ -286,7 +288,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                               ),
                               height: 100,
                               width: 100,
-                              child: Center(
+                              child: const Center(
                                 child: CircularProgressIndicator(),
                               ),
                             ),
@@ -294,6 +296,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                         );
 
                         final client = buildStreamChatClient(apiKey);
+                        final navigator = Navigator.of(context);
 
                         try {
                           await client.connectUser(
@@ -303,7 +306,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                             userToken,
                           );
 
-                          final secureStorage = FlutterSecureStorage();
+                          const secureStorage = FlutterSecureStorage();
                           secureStorage.write(
                             key: kStreamApiKey,
                             value: apiKey,
@@ -330,8 +333,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                           return;
                         }
                         loading = false;
-                        await Navigator.pushNamedAndRemoveUntil(
-                          context,
+                        await navigator.pushNamedAndRemoveUntil(
                           Routes.HOME,
                           ModalRoute.withName(Routes.HOME),
                           arguments: HomePageArgs(client),
@@ -339,7 +341,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                       }
                     },
                   ),
-                  StreamVersion(),
+                  const StreamVersion(),
                 ],
               ),
             ),

packages/stream_chat_v1/lib/pages/channel_file_display_screen.dart

@@ -27,10 +27,10 @@ class _ChannelFileDisplayScreenState extends State<ChannelFileDisplayScreen> {
     ),
     messageFilter: Filter.in_(
       'attachments.type',
-      ['file'],
+      const ['file'],
     ),
     sort: [
-      SortOption(
+      const SortOption(
         'created_at',
         direction: SortOption.ASC,
       ),
@@ -52,7 +52,7 @@ class _ChannelFileDisplayScreenState extends State<ChannelFileDisplayScreen> {
             fontSize: 16.0,
           ),
         ),
-        leading: StreamBackButton(),
+        leading: const StreamBackButton(),
         backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       ),
       body: ValueListenableBuilder(
@@ -73,7 +73,7 @@ class _ChannelFileDisplayScreenState extends State<ChannelFileDisplayScreen> {
                         size: 136.0,
                         color: StreamChatTheme.of(context).colorTheme.disabled,
                       ),
-                      SizedBox(height: 16.0),
+                      const SizedBox(height: 16.0),
                       Text(
                         AppLocalizations.of(context).noFiles,
                         style: TextStyle(
@@ -83,7 +83,7 @@ class _ChannelFileDisplayScreenState extends State<ChannelFileDisplayScreen> {
                               .textHighEmphasis,
                         ),
                       ),
-                      SizedBox(height: 8.0),
+                      const SizedBox(height: 8.0),
                       Text(
                         AppLocalizations.of(context).filesAppearHere,
                         textAlign: TextAlign.center,
@@ -132,10 +132,10 @@ class _ChannelFileDisplayScreenState extends State<ChannelFileDisplayScreen> {
                 ),
               );
             },
-            loading: () => Center(
-              child: const CircularProgressIndicator(),
+            loading: () => const Center(
+              child: CircularProgressIndicator(),
             ),
-            error: (_) => Offstage(),
+            error: (_) => const Offstage(),
           );
         },
       ),

packages/stream_chat_v1/lib/pages/channel_list_page.dart

@@ -18,7 +18,7 @@ class ChannelListPage extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  _ChannelListPageState createState() => _ChannelListPageState();
+  State<ChannelListPage> createState() => _ChannelListPageState();
 }
 
 class _ChannelListPageState extends State<ChannelListPage> {
@@ -37,7 +37,7 @@ class _ChannelListPageState extends State<ChannelListPage> {
                   ? StreamChatTheme.of(context).colorTheme.textHighEmphasis
                   : Colors.grey,
             ),
-            Positioned(
+            const Positioned(
               top: -3,
               right: -16,
               child: StreamUnreadIndicator(),
@@ -66,7 +66,7 @@ class _ChannelListPageState extends State<ChannelListPage> {
   Widget build(BuildContext context) {
     final user = StreamChat.of(context).currentUser;
     if (user == null) {
-      return Offstage();
+      return const Offstage();
     }
     return Scaffold(
       backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
@@ -99,7 +99,7 @@ class _ChannelListPageState extends State<ChannelListPage> {
       ),
       body: IndexedStack(
         index: _currentIndex,
-        children: [
+        children: const [
           ChannelList(),
           UserMentionsPage(),
         ],
@@ -164,13 +164,14 @@ class LeftDrawer extends StatelessWidget {
                       StreamUserAvatar(
                         user: user,
                         showOnlineStatus: false,
-                        constraints: BoxConstraints.tight(Size.fromRadius(20)),
+                        constraints:
+                            BoxConstraints.tight(const Size.fromRadius(20)),
                       ),
                       Padding(
                         padding: const EdgeInsets.only(left: 16.0),
                         child: Text(
                           user.name,
-                          style: TextStyle(
+                          style: const TextStyle(
                             fontSize: 16,
                             fontWeight: FontWeight.bold,
                           ),
@@ -194,7 +195,7 @@ class LeftDrawer extends StatelessWidget {
                   },
                   title: Text(
                     AppLocalizations.of(context).newDirectMessage,
-                    style: TextStyle(
+                    style: const TextStyle(
                       fontSize: 14.5,
                     ),
                   ),
@@ -214,7 +215,7 @@ class LeftDrawer extends StatelessWidget {
                   },
                   title: Text(
                     AppLocalizations.of(context).newGroup,
-                    style: TextStyle(
+                    style: const TextStyle(
                       fontSize: 14.5,
                     ),
                   ),
@@ -224,21 +225,20 @@ class LeftDrawer extends StatelessWidget {
                     alignment: Alignment.bottomCenter,
                     child: ListTile(
                       onTap: () async {
+                        final client = StreamChat.of(context).client;
+                        final navigator =
+                            Navigator.of(context, rootNavigator: true);
                         Navigator.pop(context);
 
                         if (!kIsWeb) {
-                          final secureStorage = FlutterSecureStorage();
+                          const secureStorage = FlutterSecureStorage();
                           await secureStorage.deleteAll();
                         }
 
-                        final client = StreamChat.of(context).client;
                         client.disconnectUser();
                         await client.dispose();
 
-                        await Navigator.of(
-                          context,
-                          rootNavigator: true,
-                        ).pushNamedAndRemoveUntil(
+                        await navigator.pushNamedAndRemoveUntil(
                           Routes.CHOOSE_USER,
                           ModalRoute.withName(Routes.CHOOSE_USER),
                         );
@@ -251,7 +251,7 @@ class LeftDrawer extends StatelessWidget {
                       ),
                       title: Text(
                         AppLocalizations.of(context).signOut,
-                        style: TextStyle(
+                        style: const TextStyle(
                           fontSize: 14.5,
                         ),
                       ),
@@ -263,12 +263,11 @@ class LeftDrawer extends StatelessWidget {
                             .colorTheme
                             .textLowEmphasis,
                         onPressed: () async {
+                          final theme = Theme.of(context);
                           final sp = await StreamingSharedPreferences.instance;
                           sp.setInt(
                             'theme',
-                            Theme.of(context).brightness == Brightness.dark
-                                ? 1
-                                : -1,
+                            theme.brightness == Brightness.dark ? 1 : -1,
                           );
                         },
                       ),

packages/stream_chat_v1/lib/pages/channel_media_display_screen.dart

@@ -30,10 +30,10 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
     ),
     messageFilter: Filter.in_(
       'attachments.type',
-      ['image', 'video'],
+      const ['image', 'video'],
     ),
     sort: [
-      SortOption(
+      const SortOption(
         'created_at',
         direction: SortOption.ASC,
       ),
@@ -55,7 +55,7 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
             fontSize: 16.0,
           ),
         ),
-        leading: StreamBackButton(),
+        leading: const StreamBackButton(),
         backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       ),
       body: ValueListenableBuilder(
@@ -73,7 +73,7 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
                         size: 136.0,
                         color: StreamChatTheme.of(context).colorTheme.disabled,
                       ),
-                      SizedBox(height: 16.0),
+                      const SizedBox(height: 16.0),
                       Text(
                         AppLocalizations.of(context).noMedia,
                         style: TextStyle(
@@ -83,7 +83,7 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
                               .textHighEmphasis,
                         ),
                       ),
-                      SizedBox(height: 8.0),
+                      const SizedBox(height: 8.0),
                       Text(
                         AppLocalizations.of(context)
                             .photosOrVideosWillAppearHere,
@@ -131,7 +131,7 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
                   }
                 },
                 child: GridView.builder(
-                  gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+                  gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
                       crossAxisCount: 3),
                   itemBuilder: (context, position) {
                     var channel = StreamChannel.of(context).channel;
@@ -158,6 +158,7 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
                                   onShowMessage: (m, c) async {
                                     final client =
                                         StreamChat.of(context).client;
+                                    final navigator = Navigator.of(context);
                                     final message = m;
                                     final channel = client.channel(
                                       c.type,
@@ -166,8 +167,7 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
                                     if (channel.state == null) {
                                       await channel.watch();
                                     }
-                                    Navigator.pushNamed(
-                                      context,
+                                    navigator.pushNamed(
                                       Routes.CHANNEL_PAGE,
                                       arguments: ChannelPageArgs(
                                         channel: channel,
@@ -197,10 +197,10 @@ class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
                 ),
               );
             },
-            loading: () => Center(
-              child: const CircularProgressIndicator(),
+            loading: () => const Center(
+              child: CircularProgressIndicator(),
             ),
-            error: (_) => Offstage(),
+            error: (_) => const Offstage(),
           );
         },
       ),

packages/stream_chat_v1/lib/pages/channel_page.dart

@@ -30,12 +30,12 @@ class ChannelPage extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  _ChannelPageState createState() => _ChannelPageState();
+  State<ChannelPage> createState() => _ChannelPageState();
 }
 
 class _ChannelPageState extends State<ChannelPage> {
   FocusNode? _focusNode;
-  StreamMessageInputController _messageInputController =
+  final StreamMessageInputController _messageInputController =
       StreamMessageInputController();
 
   @override
@@ -64,7 +64,8 @@ class _ChannelPageState extends State<ChannelPage> {
       appBar: StreamChannelHeader(
         showTypingIndicator: false,
         onImageTap: () async {
-          var channel = StreamChannel.of(context).channel;
+          final channel = StreamChannel.of(context).channel;
+          final navigator = Navigator.of(context);
 
           if (channel.memberCount == 2 && channel.isDistinct) {
             final currentUser = StreamChat.of(context).currentUser;
@@ -76,17 +77,17 @@ class _ChannelPageState extends State<ChannelPage> {
                 context,
                 MaterialPageRoute(
                   builder: (context) => StreamChannel(
+                    channel: channel,
                     child: ChatInfoScreen(
                       messageTheme: StreamChatTheme.of(context).ownMessageTheme,
                       user: otherUser.user,
                     ),
-                    channel: channel,
                   ),
                 ),
               );
 
               if (pop == true) {
-                Navigator.pop(context);
+                navigator.pop();
               }
             }
           } else {
@@ -94,10 +95,10 @@ class _ChannelPageState extends State<ChannelPage> {
               context,
               MaterialPageRoute(
                 builder: (context) => StreamChannel(
+                  channel: channel,
                   child: GroupInfoScreen(
                     messageTheme: StreamChatTheme.of(context).ownMessageTheme,
                   ),
-                  channel: channel,
                 ),
               ),
             );
@@ -116,6 +117,7 @@ class _ChannelPageState extends State<ChannelPage> {
                   onMessageSwiped: _reply,
                   messageFilter: defaultFilter,
                   messageBuilder: (context, details, messages, defaultMessage) {
+                    final navigator = Navigator.of(context);
                     return defaultMessage.copyWith(
                       onReplyTap: _reply,
                       onShowMessage: (m, c) async {
@@ -128,8 +130,7 @@ class _ChannelPageState extends State<ChannelPage> {
                         if (channel.state == null) {
                           await channel.watch();
                         }
-                        Navigator.pushReplacementNamed(
-                          context,
+                        navigator.pushReplacementNamed(
                           Routes.CHANNEL_PAGE,
                           arguments: ChannelPageArgs(
                             channel: channel,
@@ -184,8 +185,8 @@ class _ChannelPageState extends State<ChannelPage> {
   }
 
   bool defaultFilter(Message m) {
-    var _currentUser = StreamChat.of(context).currentUser;
-    final isMyMessage = m.user?.id == _currentUser?.id;
+    final currentUser = StreamChat.of(context).currentUser;
+    final isMyMessage = m.user?.id == currentUser?.id;
     final isDeletedOrShadowed = m.isDeleted == true || m.shadowed == true;
     if (isDeletedOrShadowed && !isMyMessage) return false;
     return true;

packages/stream_chat_v1/lib/pages/chat_info_screen.dart

@@ -20,7 +20,7 @@ class ChatInfoScreen extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  _ChatInfoScreenState createState() => _ChatInfoScreenState();
+  State<ChatInfoScreen> createState() => _ChatInfoScreenState();
 }
 
 class _ChatInfoScreenState extends State<ChatInfoScreen> {
@@ -69,7 +69,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                   padding: const EdgeInsets.all(16.0),
                   child: StreamUserAvatar(
                     user: widget.user!,
-                    constraints: BoxConstraints.tightFor(
+                    constraints: const BoxConstraints.tightFor(
                       width: 72.0,
                       height: 72.0,
                     ),
@@ -79,11 +79,12 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                 ),
                 Text(
                   widget.user!.name,
-                  style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.bold),
+                  style: const TextStyle(
+                      fontSize: 16.0, fontWeight: FontWeight.bold),
                 ),
-                SizedBox(height: 7.0),
+                const SizedBox(height: 7.0),
                 _buildConnectedTitleState(),
-                SizedBox(height: 15.0),
+                const SizedBox(height: 15.0),
                 StreamOptionListTile(
                   title: '@${widget.user!.id}',
                   tileColor: StreamChatTheme.of(context).colorTheme.appBg,
@@ -103,7 +104,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                 ),
               ],
             ),
-            Positioned(
+            const Positioned(
               top: 0,
               left: 0,
               width: 58,
@@ -120,18 +121,6 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
 
     return Column(
       children: [
-        // _OptionListTile(
-        //   title: 'Notifications',
-        //   leading: StreamSvgIcon.Icon_notification(
-        //     size: 24.0,
-        //     color: StreamChatTheme.of(context).colorTheme.textHighEmphasis.withOpacity(0.5),
-        //   ),
-        //   trailing: CupertinoSwitch(
-        //     value: true,
-        //     onChanged: (val) {},
-        //   ),
-        //   onTap: () {},
-        // ),
         StreamBuilder<bool>(
             stream: StreamChannel.of(context).channel.isMutedStream,
             builder: (context, snapshot) {
@@ -152,7 +141,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                   ),
                 ),
                 trailing: snapshot.data == null
-                    ? CircularProgressIndicator()
+                    ? const CircularProgressIndicator()
                     : ValueListenableBuilder<bool?>(
                         valueListenable: mutedBool,
                         builder: (context, value, _) {
@@ -172,24 +161,6 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                 onTap: () {},
               );
             }),
-        // _OptionListTile(
-        //   title: 'Block User',
-        //   leading: StreamSvgIcon.Icon_user_delete(
-        //     size: 24.0,
-        //     color: StreamChatTheme.of(context).colorTheme.textHighEmphasis.withOpacity(0.5),
-        //   ),
-        //   trailing: CupertinoSwitch(
-        //     value: widget.user.banned,
-        //     onChanged: (val) {
-        //       if (widget.user.banned) {
-        //         channel.channel.shadowBan(widget.user.id, {});
-        //       } else {
-        //         channel.channel.unbanUser(widget.user.id);
-        //       }
-        //     },
-        //   ),
-        //   onTap: () {},
-        // ),
         StreamOptionListTile(
           title: AppLocalizations.of(context).pinnedMessages,
           tileColor: StreamChatTheme.of(context).colorTheme.appBg,
@@ -215,7 +186,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
               MaterialPageRoute(
                 builder: (context) => StreamChannel(
                   channel: channel,
-                  child: PinnedMessagesScreen(),
+                  child: const PinnedMessagesScreen(),
                 ),
               ),
             );
@@ -338,6 +309,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
   }
 
   void _showDeleteDialog() async {
+    final streamChannel = StreamChannel.of(context);
     final res = await showConfirmationBottomSheet(
       context,
       title: AppLocalizations.of(context).deleteConversationTitle,
@@ -348,7 +320,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         color: StreamChatTheme.of(context).colorTheme.accentError,
       ),
     );
-    var channel = StreamChannel.of(context).channel;
+    final channel = streamChannel.channel;
     if (res == true) {
       await channel.delete().then((value) {
         Navigator.pop(context);
@@ -358,7 +330,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
   }
 
   Widget _buildConnectedTitleState() {
-    var alternativeWidget;
+    late Text alternativeWidget;
 
     final otherMember = widget.user;
 
@@ -390,22 +362,22 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         if (widget.user!.online)
           Material(
             type: MaterialType.circle,
+            color: StreamChatTheme.of(context).colorTheme.barsBg,
             child: Container(
               padding: const EdgeInsets.symmetric(horizontal: 8.0),
-              constraints: BoxConstraints.tightFor(
+              constraints: const BoxConstraints.tightFor(
                 width: 24,
                 height: 12,
               ),
               child: Material(
-                shape: CircleBorder(),
+                shape: const CircleBorder(),
                 color: StreamChatTheme.of(context).colorTheme.accentInfo,
               ),
             ),
-            color: StreamChatTheme.of(context).colorTheme.barsBg,
           ),
         alternativeWidget,
         if (widget.user!.online)
-          SizedBox(
+          const SizedBox(
             width: 24.0,
           ),
       ],
@@ -417,7 +389,7 @@ class _SharedGroupsScreen extends StatefulWidget {
   final User? mainUser;
   final User? otherUser;
 
-  _SharedGroupsScreen(this.mainUser, this.otherUser);
+  const _SharedGroupsScreen(this.mainUser, this.otherUser);
 
   @override
   __SharedGroupsScreenState createState() => __SharedGroupsScreenState();
@@ -439,7 +411,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
               color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
               fontSize: 16.0),
         ),
-        leading: StreamBackButton(),
+        leading: const StreamBackButton(),
         backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       ),
       body: StreamBuilder<List<Channel>>(
@@ -451,7 +423,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
         ),
         builder: (context, snapshot) {
           if (!snapshot.hasData) {
-            return Center(
+            return const Center(
               child: CircularProgressIndicator(),
             );
           }
@@ -465,7 +437,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
                     size: 136.0,
                     color: StreamChatTheme.of(context).colorTheme.disabled,
                   ),
-                  SizedBox(height: 16.0),
+                  const SizedBox(height: 16.0),
                   Text(
                     AppLocalizations.of(context).noSharedGroups,
                     style: TextStyle(
@@ -475,7 +447,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
                           .textHighEmphasis,
                     ),
                   ),
-                  SizedBox(height: 8.0),
+                  const SizedBox(height: 8.0),
                   Text(
                     AppLocalizations.of(context).groupSharedWithUserAppearHere,
                     textAlign: TextAlign.center,
@@ -515,84 +487,86 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
   }
 
   Widget _buildListTile(Channel channel) {
-    var extraData = channel.extraData;
-    var members = channel.state!.members;
+    final extraData = channel.extraData;
+    final members = channel.state!.members;
 
-    var textStyle = TextStyle(fontSize: 14.0, fontWeight: FontWeight.bold);
+    const textStyle = TextStyle(fontSize: 14.0, fontWeight: FontWeight.bold);
 
-    return Container(
+    return SizedBox(
       height: 64.0,
-      child: LayoutBuilder(builder: (context, constraints) {
-        String? title;
-        if (extraData['name'] == null) {
-          final otherMembers = members.where((member) =>
-              member.userId != StreamChat.of(context).currentUser!.id);
-          if (otherMembers.isNotEmpty) {
-            final maxWidth = constraints.maxWidth;
-            final maxChars = maxWidth / textStyle.fontSize!;
-            var currentChars = 0;
-            final currentMembers = <Member>[];
-            otherMembers.forEach((element) {
-              final newLength = currentChars + element.user!.name.length;
-              if (newLength < maxChars) {
-                currentChars = newLength;
-                currentMembers.add(element);
+      child: LayoutBuilder(
+        builder: (context, constraints) {
+          String? title;
+          if (extraData['name'] == null) {
+            final otherMembers = members.where((member) =>
+                member.userId != StreamChat.of(context).currentUser!.id);
+            if (otherMembers.isNotEmpty) {
+              final maxWidth = constraints.maxWidth;
+              final maxChars = maxWidth / textStyle.fontSize!;
+              var currentChars = 0;
+              final currentMembers = <Member>[];
+              for (var element in otherMembers) {
+                final newLength = currentChars + element.user!.name.length;
+                if (newLength < maxChars) {
+                  currentChars = newLength;
+                  currentMembers.add(element);
+                }
               }
-            });
 
-            final exceedingMembers =
-                otherMembers.length - currentMembers.length;
-            title =
-                '${currentMembers.map((e) => e.user!.name).join(', ')} ${exceedingMembers > 0 ? '+ $exceedingMembers' : ''}';
+              final exceedingMembers =
+                  otherMembers.length - currentMembers.length;
+              title =
+                  '${currentMembers.map((e) => e.user!.name).join(', ')} ${exceedingMembers > 0 ? '+ $exceedingMembers' : ''}';
+            } else {
+              title = 'No title';
+            }
           } else {
-            title = 'No title';
+            title = extraData['name'] as String;
           }
-        } else {
-          title = extraData['name'] as String;
-        }
 
-        return Column(
-          children: [
-            Expanded(
-              child: Row(
-                children: [
-                  Padding(
-                    padding: const EdgeInsets.all(8.0),
-                    child: StreamChannelAvatar(
-                      channel: channel,
-                      constraints:
-                          BoxConstraints(maxWidth: 40.0, maxHeight: 40.0),
+          return Column(
+            children: [
+              Expanded(
+                child: Row(
+                  children: [
+                    Padding(
+                      padding: const EdgeInsets.all(8.0),
+                      child: StreamChannelAvatar(
+                        channel: channel,
+                        constraints: const BoxConstraints(
+                            maxWidth: 40.0, maxHeight: 40.0),
+                      ),
                     ),
-                  ),
-                  Expanded(
+                    Expanded(
+                        child: Text(
+                      title,
+                      style: textStyle,
+                    )),
+                    Padding(
+                      padding: const EdgeInsets.all(8.0),
                       child: Text(
-                    title,
-                    style: textStyle,
-                  )),
-                  Padding(
-                    padding: const EdgeInsets.all(8.0),
-                    child: Text(
-                      '${channel.memberCount} ${AppLocalizations.of(context).members.toLowerCase()}',
-                      style: TextStyle(
-                          color: StreamChatTheme.of(context)
-                              .colorTheme
-                              .textHighEmphasis
-                              .withOpacity(0.5)),
-                    ),
-                  )
-                ],
+                        '${channel.memberCount} ${AppLocalizations.of(context).members.toLowerCase()}',
+                        style: TextStyle(
+                            color: StreamChatTheme.of(context)
+                                .colorTheme
+                                .textHighEmphasis
+                                .withOpacity(0.5)),
+                      ),
+                    )
+                  ],
+                ),
               ),
-            ),
-            Container(
-              height: 1.0,
-              color: StreamChatTheme.of(context)
-                  .colorTheme
-                  .textHighEmphasis
-                  .withOpacity(.08),
-            ),
-          ],
-        );
-      }),
+              Container(
+                height: 1.0,
+                color: StreamChatTheme.of(context)
+                    .colorTheme
+                    .textHighEmphasis
+                    .withOpacity(.08),
+              ),
+            ],
+          );
+        },
+      ),
     );
   }
 }

packages/stream_chat_v1/lib/pages/choose_user_page.dart

@@ -16,6 +16,8 @@ const kStreamUserId = 'STREAM_USER_ID';
 const kStreamToken = 'STREAM_TOKEN';
 
 class ChooseUserPage extends StatelessWidget {
+  const ChooseUserPage({super.key});
+
   @override
   Widget build(BuildContext context) {
     final users = defaultUsers;
@@ -85,7 +87,7 @@ class ChooseUserPage extends StatelessWidget {
                                   ),
                                   height: 100,
                                   width: 100,
-                                  child: Center(
+                                  child: const Center(
                                     child: CircularProgressIndicator(),
                                   ),
                                 ),
@@ -97,13 +99,15 @@ class ChooseUserPage extends StatelessWidget {
                               logLevel: Level.INFO,
                             )..chatPersistenceClient = chatPersistentClient;
 
+                            final navigator = Navigator.of(context);
+
                             await client.connectUser(
                               user,
                               token,
                             );
 
                             if (!kIsWeb) {
-                              final secureStorage = FlutterSecureStorage();
+                              const secureStorage = FlutterSecureStorage();
                               secureStorage.write(
                                 key: kStreamApiKey,
                                 value: kDefaultStreamApiKey,
@@ -117,8 +121,7 @@ class ChooseUserPage extends StatelessWidget {
                                 value: token,
                               );
                             }
-                            Navigator.pushNamedAndRemoveUntil(
-                              context,
+                            navigator.pushNamedAndRemoveUntil(
                               Routes.HOME,
                               ModalRoute.withName(Routes.HOME),
                               arguments: HomePageArgs(client),
@@ -127,7 +130,7 @@ class ChooseUserPage extends StatelessWidget {
                           leading: StreamUserAvatar(
                             user: user,
                             constraints: BoxConstraints.tight(
-                              Size.fromRadius(20),
+                              const Size.fromRadius(20),
                             ),
                           ),
                           title: Text(
@@ -158,13 +161,13 @@ class ChooseUserPage extends StatelessWidget {
                           Navigator.pushNamed(context, Routes.ADVANCED_OPTIONS);
                         },
                         leading: CircleAvatar(
+                          backgroundColor:
+                              StreamChatTheme.of(context).colorTheme.borders,
                           child: StreamSvgIcon.settings(
                             color: StreamChatTheme.of(context)
                                 .colorTheme
                                 .textHighEmphasis,
                           ),
-                          backgroundColor:
-                              StreamChatTheme.of(context).colorTheme.borders,
                         ),
                         title: Text(
                           AppLocalizations.of(context).advancedOptions,
@@ -193,7 +196,7 @@ class ChooseUserPage extends StatelessWidget {
                 ),
               ),
             ),
-            StreamVersion(),
+            const StreamVersion(),
           ],
         ),
       ),

packages/stream_chat_v1/lib/pages/group_chat_details_screen.dart

@@ -14,7 +14,7 @@ class GroupChatDetailsScreen extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  _GroupChatDetailsScreenState createState() => _GroupChatDetailsScreenState();
+  State<GroupChatDetailsScreen> createState() => _GroupChatDetailsScreenState();
 }
 
 class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
@@ -73,7 +73,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
           ),
           centerTitle: true,
           bottom: PreferredSize(
-            preferredSize: Size.fromHeight(kToolbarHeight),
+            preferredSize: const Size.fromHeight(kToolbarHeight),
             child: Padding(
               padding: const EdgeInsets.symmetric(vertical: 18, horizontal: 16),
               child: Row(
@@ -87,7 +87,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                           .textLowEmphasis,
                     ),
                   ),
-                  SizedBox(width: 16),
+                  const SizedBox(width: 16),
                   Expanded(
                     child: TextField(
                       controller: _groupNameController,
@@ -130,8 +130,9 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                         try {
                           final groupName = _groupNameController!.text;
                           final client = StreamChat.of(context).client;
+                          final navigator = Navigator.of(context);
                           final channel = client.channel('messaging',
-                              id: Uuid().v4(),
+                              id: const Uuid().v4(),
                               extraData: {
                                 'members': [
                                   client.state.currentUser!.id,
@@ -140,8 +141,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                                 'name': groupName,
                               });
                           await channel.watch();
-                          Navigator.pushNamedAndRemoveUntil(
-                            context,
+                          navigator.pushNamedAndRemoveUntil(
                             Routes.CHANNEL_PAGE,
                             ModalRoute.withName(Routes.CHANNEL_LIST_PAGE),
                             arguments: ChannelPageArgs(channel: channel),
@@ -223,14 +223,15 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                             key: ObjectKey(user),
                             leading: StreamUserAvatar(
                               user: user,
-                              constraints: BoxConstraints.tightFor(
+                              constraints: const BoxConstraints.tightFor(
                                 width: 40,
                                 height: 40,
                               ),
                             ),
                             title: Text(
                               user.name,
-                              style: TextStyle(fontWeight: FontWeight.bold),
+                              style:
+                                  const TextStyle(fontWeight: FontWeight.bold),
                             ),
                             contentPadding: const EdgeInsets.symmetric(
                               horizontal: 12,
@@ -273,7 +274,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
       useRootNavigator: false,
       backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       context: context,
-      shape: RoundedRectangleBorder(
+      shape: const RoundedRectangleBorder(
           borderRadius: BorderRadius.only(
         topLeft: Radius.circular(16.0),
         topRight: Radius.circular(16.0),
@@ -282,25 +283,25 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
         return Column(
           mainAxisSize: MainAxisSize.min,
           children: [
-            SizedBox(
+            const SizedBox(
               height: 26.0,
             ),
             StreamSvgIcon.error(
               color: StreamChatTheme.of(context).colorTheme.accentError,
               size: 24.0,
             ),
-            SizedBox(
+            const SizedBox(
               height: 26.0,
             ),
             Text(
               AppLocalizations.of(context).somethingWentWrongErrorMessage,
               style: StreamChatTheme.of(context).textTheme.headlineBold,
             ),
-            SizedBox(
+            const SizedBox(
               height: 7.0,
             ),
             Text(AppLocalizations.of(context).operationCouldNotBeCompleted),
-            SizedBox(
+            const SizedBox(
               height: 36.0,
             ),
             Container(

packages/stream_chat_v1/lib/pages/group_info_screen.dart

@@ -21,7 +21,7 @@ class GroupInfoScreen extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  _GroupInfoScreenState createState() => _GroupInfoScreenState();
+  State<GroupInfoScreen> createState() => _GroupInfoScreenState();
 }
 
 class _GroupInfoScreenState extends State<GroupInfoScreen> {
@@ -101,7 +101,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
         ],
       ),
       sort: [
-        SortOption(
+        const SortOption(
           'name',
           direction: 1,
         ),
@@ -124,7 +124,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
           if (!snapshot.hasData) {
             return Container(
               color: StreamChatTheme.of(context).colorTheme.disabled,
-              child: Center(child: CircularProgressIndicator()),
+              child: const Center(child: CircularProgressIndicator()),
             );
           }
 
@@ -134,7 +134,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
               elevation: 1.0,
               toolbarHeight: 56.0,
               backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
-              leading: StreamBackButton(),
+              leading: const StreamBackButton(),
               title: Column(
                 children: [
                   StreamBuilder<ChannelState>(
@@ -171,7 +171,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                           overflow: TextOverflow.ellipsis,
                         );
                       }),
-                  SizedBox(
+                  const SizedBox(
                     height: 3.0,
                   ),
                   Text(
@@ -242,11 +242,12 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
       children: [
         ListView.builder(
           shrinkWrap: true,
-          physics: NeverScrollableScrollPhysics(),
+          physics: const NeverScrollableScrollPhysics(),
           itemCount: groupMembersLength,
           itemBuilder: (context, index) {
             final member = groupMembers[index];
             return Material(
+              color: StreamChatTheme.of(context).colorTheme.appBg,
               child: InkWell(
                 onTap: () {
                   final userMember = groupMembers.firstWhereOrNull(
@@ -255,7 +256,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                   _showUserInfoModal(
                       member.user, userMember?.userId == channel.createdBy?.id);
                 },
-                child: Container(
+                child: SizedBox(
                   height: 65.0,
                   child: Column(
                     children: [
@@ -268,7 +269,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                             ),
                             child: StreamUserAvatar(
                               user: member.user!,
-                              constraints: BoxConstraints.tightFor(
+                              constraints: const BoxConstraints.tightFor(
                                 height: 40.0,
                                 width: 40.0,
                               ),
@@ -281,9 +282,10 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                               children: [
                                 Text(
                                   member.user!.name,
-                                  style: TextStyle(fontWeight: FontWeight.bold),
+                                  style: const TextStyle(
+                                      fontWeight: FontWeight.bold),
                                 ),
-                                SizedBox(
+                                const SizedBox(
                                   height: 1.0,
                                 ),
                                 Text(
@@ -320,7 +322,6 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                   ),
                 ),
               ),
-              color: StreamChatTheme.of(context).colorTheme.appBg,
             );
           },
         ),
@@ -333,7 +334,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
             },
             child: Material(
               color: StreamChatTheme.of(context).colorTheme.appBg,
-              child: Container(
+              child: SizedBox(
                 height: 65.0,
                 child: Column(
                   children: [
@@ -401,7 +402,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                         .withOpacity(0.5)),
               ),
             ),
-            SizedBox(
+            const SizedBox(
               width: 7.0,
             ),
             Expanded(
@@ -422,7 +423,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                                 .colorTheme
                                 .textHighEmphasis
                                 .withOpacity(0.5))),
-                style: TextStyle(
+                style: const TextStyle(
                   fontWeight: FontWeight.bold,
                   height: 0.82,
                 ),
@@ -478,18 +479,6 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
   Widget _buildOptionListTiles() {
     return Column(
       children: [
-        // OptionListTile(
-        //   title: 'Notifications',
-        //   leading: StreamSvgIcon.Icon_notification(
-        //     size: 24.0,
-        //     color: StreamChatTheme.of(context).colorTheme.textHighEmphasis.withOpacity(0.5),
-        //   ),
-        //   trailing: CupertinoSwitch(
-        //     value: true,
-        //     onChanged: (val) {},
-        //   ),
-        //   onTap: () {},
-        // ),
         if (channel.ownCapabilities.contains(PermissionType.muteChannel))
           StreamBuilder<bool>(
               stream: channel.isMutedStream,
@@ -513,7 +502,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                     ),
                   ),
                   trailing: snapshot.data == null
-                      ? CircularProgressIndicator()
+                      ? const CircularProgressIndicator()
                       : ValueListenableBuilder<bool?>(
                           valueListenable: mutedBool,
                           builder: (context, value, _) {
@@ -558,7 +547,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
               MaterialPageRoute(
                 builder: (context) => StreamChannel(
                   channel: channel,
-                  child: PinnedMessagesScreen(),
+                  child: const PinnedMessagesScreen(),
                 ),
               ),
             );
@@ -649,11 +638,14 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                     .withOpacity(0.5),
               ),
             ),
-            trailing: Container(
+            trailing: const SizedBox(
               height: 24.0,
               width: 24.0,
             ),
             onTap: () async {
+              final streamChannel = StreamChannel.of(context);
+              final streamChat = StreamChat.of(context);
+              final navigator = Navigator.of(context);
               final res = await showConfirmationBottomSheet(
                 context,
                 title: AppLocalizations.of(context).leaveConversation,
@@ -666,10 +658,9 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                 ),
               );
               if (res == true) {
-                final channel = StreamChannel.of(context).channel;
-                await channel
-                    .removeMembers([StreamChat.of(context).currentUser!.id]);
-                Navigator.pop(context);
+                final channel = streamChannel.channel;
+                await channel.removeMembers([streamChat.currentUser!.id]);
+                navigator.pop();
               }
             },
           ),
@@ -684,9 +675,9 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
       barrierColor: StreamChatTheme.of(context).colorTheme.overlay,
       builder: (context) {
         return Padding(
-          padding: EdgeInsets.only(top: 16.0, left: 8.0, right: 8.0),
+          padding: const EdgeInsets.only(top: 16.0, left: 8.0, right: 8.0),
           child: Material(
-            borderRadius: BorderRadius.only(
+            borderRadius: const BorderRadius.only(
               topLeft: Radius.circular(16.0),
               topRight: Radius.circular(16.0),
             ),
@@ -703,16 +694,17 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                       controller: userListController,
                       onUserTap: (user) async {
                         _searchController!.clear();
+                        final navigator = Navigator.of(context);
 
                         await channel.addMembers([user.id]);
-                        Navigator.pop(context);
+                        navigator.pop();
                         setState(() {});
                       },
                       emptyBuilder: (_) {
                         return LayoutBuilder(
                           builder: (context, viewportConstraints) {
                             return SingleChildScrollView(
-                              physics: AlwaysScrollableScrollPhysics(),
+                              physics: const AlwaysScrollableScrollPhysics(),
                               child: ConstrainedBox(
                                 constraints: BoxConstraints(
                                   minHeight: viewportConstraints.maxHeight,
@@ -760,7 +752,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
           mainAxisAlignment: MainAxisAlignment.spaceBetween,
           children: [
             Expanded(
-              child: Container(
+              child: SizedBox(
                 height: 36,
                 child: TextField(
                   controller: _searchController,
@@ -771,7 +763,8 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                     hintStyle: theme.textTheme.body.copyWith(
                       color: theme.colorTheme.textLowEmphasis,
                     ),
-                    prefixIconConstraints: BoxConstraints.tight(Size(40, 24)),
+                    prefixIconConstraints:
+                        BoxConstraints.tight(const Size(40, 24)),
                     prefixIcon: StreamSvgIcon.search(
                       color: theme.colorTheme.textHighEmphasis,
                       size: 24,
@@ -792,12 +785,12 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                 ),
               ),
             ),
-            SizedBox(width: 16.0),
+            const SizedBox(width: 16.0),
             IconButton(
               icon: StreamSvgIcon.closeSmall(
                 color: theme.colorTheme.textLowEmphasis,
               ),
-              constraints: BoxConstraints.tightFor(
+              constraints: const BoxConstraints.tightFor(
                 height: 24,
                 width: 24,
               ),
@@ -829,19 +822,19 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
               child: Column(
                 mainAxisSize: MainAxisSize.min,
                 children: [
-                  SizedBox(
+                  const SizedBox(
                     height: 24.0,
                   ),
                   Center(
                     child: Text(
                       user!.name,
-                      style: TextStyle(
+                      style: const TextStyle(
                         fontSize: 16.0,
                         fontWeight: FontWeight.bold,
                       ),
                     ),
                   ),
-                  SizedBox(
+                  const SizedBox(
                     height: 5.0,
                   ),
                   _buildConnectedTitleState(user)!,
@@ -850,7 +843,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                       padding: const EdgeInsets.all(16.0),
                       child: StreamUserAvatar(
                         user: user,
-                        constraints: BoxConstraints.tightFor(
+                        constraints: const BoxConstraints.tightFor(
                           height: 64.0,
                           width: 64.0,
                         ),
@@ -869,9 +862,10 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                       ),
                       AppLocalizations.of(context).viewInfo,
                       () async {
-                        var client = StreamChat.of(context).client;
+                        final client = StreamChat.of(context).client;
+                        final navigator = Navigator.of(context);
 
-                        var c = client.channel('messaging', extraData: {
+                        final c = client.channel('messaging', extraData: {
                           'members': [
                             user.id,
                             StreamChat.of(context).currentUser!.id,
@@ -880,8 +874,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
 
                         await c.watch();
 
-                        await Navigator.push(
-                          context,
+                        await navigator.push(
                           MaterialPageRoute(
                             builder: (context) => StreamChannel(
                               channel: c,
@@ -905,9 +898,10 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                       ),
                       AppLocalizations.of(context).message,
                       () async {
-                        var client = StreamChat.of(context).client;
+                        final client = StreamChat.of(context).client;
+                        final navigator = Navigator.of(context);
 
-                        var c = client.channel('messaging', extraData: {
+                        final c = client.channel('messaging', extraData: {
                           'members': [
                             user.id,
                             StreamChat.of(context).currentUser!.id,
@@ -916,12 +910,11 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
 
                         await c.watch();
 
-                        await Navigator.push(
-                          context,
+                        await navigator.push(
                           MaterialPageRoute(
                             builder: (context) => StreamChannel(
                               channel: c,
-                              child: ChannelPage(),
+                              child: const ChannelPage(),
                             ),
                           ),
                         );
@@ -939,6 +932,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                           size: 24.0,
                         ),
                         AppLocalizations.of(context).removeFromGroup, () async {
+                      final navigator = Navigator.of(context);
                       final res = await showConfirmationBottomSheet(
                         context,
                         title: AppLocalizations.of(context).removeMember,
@@ -953,7 +947,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
                       if (res == true) {
                         await channel.removeMembers([user.id]);
                       }
-                      Navigator.pop(context);
+                      navigator.pop();
                     },
                         color:
                             StreamChatTheme.of(context).colorTheme.accentError),
@@ -974,7 +968,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
           ),
         );
       },
-      shape: RoundedRectangleBorder(
+      shape: const RoundedRectangleBorder(
         borderRadius: BorderRadius.only(
           topLeft: Radius.circular(16.0),
           topRight: Radius.circular(16.0),
@@ -984,7 +978,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
   }
 
   Widget? _buildConnectedTitleState(User? user) {
-    var alternativeWidget;
+    late Text alternativeWidget;
 
     final otherMember = user;
 
@@ -1028,7 +1022,7 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
               height: 1.0,
               color: StreamChatTheme.of(context).colorTheme.disabled,
             ),
-            Container(
+            SizedBox(
               height: 64.0,
               child: Row(
                 children: [
@@ -1068,13 +1062,13 @@ class _GroupInfoScreenState extends State<GroupInfoScreen> {
         final maxChars = maxWidth / maxFontSize!;
         var currentChars = 0;
         final currentMembers = <Member>[];
-        otherMembers.forEach((element) {
+        for (var element in otherMembers) {
           final newLength = currentChars + element.user!.name.length;
           if (newLength < maxChars) {
             currentChars = newLength;
             currentMembers.add(element);
           }
-        });
+        }
 
         final exceedingMembers = otherMembers.length - currentMembers.length;
         title =

packages/stream_chat_v1/lib/pages/home_page.dart

@@ -72,7 +72,7 @@ class HomePageArgs {
 }
 
 class HomePage extends StatefulWidget {
-  HomePage({
+  const HomePage({
     Key? key,
     required this.chatClient,
   }) : super(key: key);
@@ -80,7 +80,7 @@ class HomePage extends StatefulWidget {
   final StreamChatClient chatClient;
 
   @override
-  _HomePageState createState() => _HomePageState();
+  State<HomePage> createState() => _HomePageState();
 }
 
 class _HomePageState extends State<HomePage> {

packages/stream_chat_v1/lib/pages/new_chat_screen.dart

@@ -9,8 +9,10 @@ import '../widgets/chips_input_text_field.dart';
 import '../routes/routes.dart';
 
 class NewChatScreen extends StatefulWidget {
+  const NewChatScreen({super.key});
+
   @override
-  _NewChatScreenState createState() => _NewChatScreenState();
+  State<NewChatScreen> createState() => _NewChatScreenState();
 }
 
 class _NewChatScreenState extends State<NewChatScreen> {
@@ -26,7 +28,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
       Filter.notEqual('id', StreamChat.of(context).currentUser!.id),
     ]),
     sort: [
-      SortOption(
+      const SortOption(
         'name',
         direction: 1,
       ),
@@ -54,11 +56,12 @@ class _NewChatScreenState extends State<NewChatScreen> {
   void _userNameListener() {
     if (_debounce?.isActive ?? false) _debounce!.cancel();
     _debounce = Timer(const Duration(milliseconds: 350), () {
-      if (mounted)
+      if (mounted) {
         setState(() {
           _userNameQuery = _controller.text;
           _isSearchActive = _userNameQuery.isNotEmpty;
         });
+      }
       userListController.filter = Filter.and([
         if (_userNameQuery.isNotEmpty)
           Filter.autoComplete('name', _userNameQuery),
@@ -97,13 +100,13 @@ class _NewChatScreenState extends State<NewChatScreen> {
             'distinct': true,
           }),
           messageLimit: 0,
-          paginationParams: PaginationParams(
+          paginationParams: const PaginationParams(
             limit: 1,
           ),
         );
 
-        final _channelExisted = res.length == 1;
-        if (_channelExisted) {
+        final channelExisted = res.length == 1;
+        if (channelExisted) {
           channel = res.first;
           await channel!.watch();
         } else {
@@ -224,7 +227,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                               child: StreamUserAvatar(
                                 showOnlineStatus: false,
                                 user: user,
-                                constraints: BoxConstraints.tightFor(
+                                constraints: const BoxConstraints.tightFor(
                                   height: 24,
                                   width: 24,
                                 ),
@@ -243,37 +246,35 @@ class _NewChatScreenState extends State<NewChatScreen> {
                     },
                   ),
                   if (!_isSearchActive && !_selectedUsers.isNotEmpty)
-                    Container(
-                      child: InkWell(
-                        onTap: () {
-                          Navigator.pushNamed(
-                            context,
-                            Routes.NEW_GROUP_CHAT,
-                          );
-                        },
-                        child: Padding(
-                          padding: const EdgeInsets.symmetric(vertical: 8),
-                          child: Row(
-                            children: [
-                              StreamNeumorphicButton(
-                                child: Center(
-                                  child: StreamSvgIcon.contacts(
-                                    color: StreamChatTheme.of(context)
-                                        .colorTheme
-                                        .accentPrimary,
-                                    size: 24,
-                                  ),
+                    InkWell(
+                      onTap: () {
+                        Navigator.pushNamed(
+                          context,
+                          Routes.NEW_GROUP_CHAT,
+                        );
+                      },
+                      child: Padding(
+                        padding: const EdgeInsets.symmetric(vertical: 8),
+                        child: Row(
+                          children: [
+                            StreamNeumorphicButton(
+                              child: Center(
+                                child: StreamSvgIcon.contacts(
+                                  color: StreamChatTheme.of(context)
+                                      .colorTheme
+                                      .accentPrimary,
+                                  size: 24,
                                 ),
                               ),
-                              SizedBox(width: 8),
-                              Text(
-                                AppLocalizations.of(context).createAGroup,
-                                style: StreamChatTheme.of(context)
-                                    .textTheme
-                                    .bodyBold,
-                              ),
-                            ],
-                          ),
+                            ),
+                            const SizedBox(width: 8),
+                            Text(
+                              AppLocalizations.of(context).createAGroup,
+                              style: StreamChatTheme.of(context)
+                                  .textTheme
+                                  .bodyBold,
+                            ),
+                          ],
                         ),
                       ),
                     ),
@@ -337,7 +338,8 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                 return LayoutBuilder(
                                   builder: (context, viewportConstraints) {
                                     return SingleChildScrollView(
-                                      physics: AlwaysScrollableScrollPhysics(),
+                                      physics:
+                                          const AlwaysScrollableScrollPhysics(),
                                       child: ConstrainedBox(
                                         constraints: BoxConstraints(
                                           minHeight:
@@ -382,7 +384,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                             future: channel!.initialized,
                             builder: (context, snapshot) {
                               if (snapshot.data == true) {
-                                return StreamMessageListView();
+                                return const StreamMessageListView();
                               }
 
                               return Center(

packages/stream_chat_v1/lib/pages/new_group_chat_screen.dart

@@ -8,8 +8,10 @@ import '../routes/routes.dart';
 import '../widgets/search_text_field.dart';
 
 class NewGroupChatScreen extends StatefulWidget {
+  const NewGroupChatScreen({super.key});
+
   @override
-  _NewGroupChatScreenState createState() => _NewGroupChatScreenState();
+  State<NewGroupChatScreen> createState() => _NewGroupChatScreenState();
 }
 
 class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
@@ -26,7 +28,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
   late final userListController = StreamUserListController(
     client: StreamChat.of(context).client,
     sort: [
-      SortOption(
+      const SortOption(
         'name',
         direction: 1,
       ),
@@ -144,13 +146,14 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                   ),
                   if (_selectedUsers.isNotEmpty)
                     SliverToBoxAdapter(
-                      child: Container(
+                      child: SizedBox(
                         height: 104,
                         child: ListView.separated(
                           scrollDirection: Axis.horizontal,
                           itemCount: _selectedUsers.length,
                           padding: const EdgeInsets.all(8),
-                          separatorBuilder: (_, __) => SizedBox(width: 16),
+                          separatorBuilder: (_, __) =>
+                              const SizedBox(width: 16),
                           itemBuilder: (_, index) {
                             final user = _selectedUsers.elementAt(index);
                             return Column(
@@ -159,11 +162,12 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                                   children: [
                                     StreamUserAvatar(
                                       onlineIndicatorAlignment:
-                                          Alignment(0.9, 0.9),
+                                          const Alignment(0.9, 0.9),
                                       user: user,
                                       showOnlineStatus: true,
                                       borderRadius: BorderRadius.circular(32),
-                                      constraints: BoxConstraints.tightFor(
+                                      constraints:
+                                          const BoxConstraints.tightFor(
                                         height: 64,
                                         width: 64,
                                       ),
@@ -201,10 +205,10 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                                     )
                                   ],
                                 ),
-                                SizedBox(height: 4),
+                                const SizedBox(height: 4),
                                 Text(
                                   user.name.split(' ')[0],
-                                  style: TextStyle(
+                                  style: const TextStyle(
                                     fontWeight: FontWeight.bold,
                                     fontSize: 12,
                                   ),
@@ -218,7 +222,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                   SliverPersistentHeader(
                     pinned: true,
                     delegate: _HeaderDelegate(
-                      height: 30,
+                      height: 32,
                       child: Container(
                         width: double.maxFinite,
                         decoration: BoxDecoration(
@@ -232,7 +236,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                           ),
                           child: Text(
                             _isSearchActive
-                                ? '${AppLocalizations.of(context).matchesFor} \"$_userNameQuery\"'
+                                ? '${AppLocalizations.of(context).matchesFor} "$_userNameQuery"'
                                 : AppLocalizations.of(context).onThePlatorm,
                             style: TextStyle(
                               color: StreamChatTheme.of(context)
@@ -271,7 +275,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                     return LayoutBuilder(
                       builder: (context, viewportConstraints) {
                         return SingleChildScrollView(
-                          physics: AlwaysScrollableScrollPhysics(),
+                          physics: const AlwaysScrollableScrollPhysics(),
                           child: ConstrainedBox(
                             constraints: BoxConstraints(
                               minHeight: viewportConstraints.maxHeight,

packages/stream_chat_v1/lib/pages/pinned_messages_screen.dart

@@ -6,6 +6,8 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 import 'channel_page.dart';
 
 class PinnedMessagesScreen extends StatefulWidget {
+  const PinnedMessagesScreen({super.key});
+
   @override
   State<PinnedMessagesScreen> createState() => _PinnedMessagesScreenState();
 }
@@ -22,7 +24,7 @@ class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
       true,
     ),
     sort: [
-      SortOption(
+      const SortOption(
         'created_at',
         direction: SortOption.ASC,
       ),
@@ -44,7 +46,7 @@ class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
             fontSize: 16.0,
           ),
         ),
-        leading: StreamBackButton(),
+        leading: const StreamBackButton(),
         backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       ),
       body: StreamMessageSearchListView(
@@ -58,7 +60,7 @@ class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
                   size: 136.0,
                   color: StreamChatTheme.of(context).colorTheme.disabled,
                 ),
-                SizedBox(height: 16.0),
+                const SizedBox(height: 16.0),
                 Text(
                   AppLocalizations.of(context).noPinnedItems,
                   style: TextStyle(
@@ -68,7 +70,7 @@ class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
                     fontWeight: FontWeight.bold,
                   ),
                 ),
-                SizedBox(height: 8.0),
+                const SizedBox(height: 8.0),
                 RichText(
                   textAlign: TextAlign.center,
                   text: TextSpan(children: [
@@ -101,6 +103,7 @@ class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
         },
         onMessageTap: (messageResponse) async {
           final client = StreamChat.of(context).client;
+          final navigator = Navigator.of(context);
           final message = messageResponse.message;
           final channel = client.channel(
             messageResponse.channel!.type,
@@ -109,8 +112,7 @@ class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
           if (channel.state == null) {
             await channel.watch();
           }
-          Navigator.pushNamed(
-            context,
+          navigator.pushNamed(
             Routes.CHANNEL_PAGE,
             arguments: ChannelPageArgs(
               channel: channel,

packages/stream_chat_v1/lib/pages/splash_screen.dart

@@ -12,7 +12,7 @@ mixin SplashScreenStateMixin<T extends StatefulWidget> on State<T>
     _scaleAnimationController = AnimationController(
       vsync: this,
       value: 0,
-      duration: Duration(
+      duration: const Duration(
         milliseconds: 500,
       ),
     );
@@ -26,7 +26,7 @@ mixin SplashScreenStateMixin<T extends StatefulWidget> on State<T>
 
     _animationController = AnimationController(
       vsync: this,
-      duration: Duration(
+      duration: const Duration(
         milliseconds: 1000,
       ),
     );
@@ -38,14 +38,14 @@ mixin SplashScreenStateMixin<T extends StatefulWidget> on State<T>
       curve: Curves.easeInOut,
     ));
     colorAnimation = ColorTween(
-      begin: Color(0xff005FFF),
-      end: Color(0xff005FFF),
+      begin: const Color(0xff005FFF),
+      end: const Color(0xff005FFF),
     ).animate(CurvedAnimation(
       parent: _animationController,
       curve: Curves.easeInOut,
     ));
     colorAnimation = ColorTween(
-      begin: Color(0xff005FFF),
+      begin: const Color(0xff005FFF),
       end: Colors.transparent,
     ).animate(CurvedAnimation(
       parent: _animationController,
@@ -73,14 +73,14 @@ mixin SplashScreenStateMixin<T extends StatefulWidget> on State<T>
                     builder: (context, snapshot) {
                       return Container(
                         alignment: Alignment.center,
-                        constraints: BoxConstraints.expand(),
+                        constraints: const BoxConstraints.expand(),
                         color: colorAnimation.value,
                         child: !_animationController.isAnimating
                             ? Lottie.asset(
                                 'assets/floating_boat.json',
                                 alignment: Alignment.center,
                               )
-                            : SizedBox(),
+                            : const SizedBox(),
                       );
                     }),
               );

packages/stream_chat_v1/lib/pages/thread_page.dart

@@ -6,7 +6,7 @@ class ThreadPage extends StatefulWidget {
   final int? initialScrollIndex;
   final double? initialAlignment;
 
-  ThreadPage({
+  const ThreadPage({
     Key? key,
     required this.parent,
     this.initialScrollIndex,
@@ -14,11 +14,11 @@ class ThreadPage extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  _ThreadPageState createState() => _ThreadPageState();
+  State<ThreadPage> createState() => _ThreadPageState();
 }
 
 class _ThreadPageState extends State<ThreadPage> {
-  FocusNode _focusNode = FocusNode();
+  final FocusNode _focusNode = FocusNode();
   late StreamMessageInputController _messageInputController;
 
   @override
@@ -82,8 +82,8 @@ class _ThreadPageState extends State<ThreadPage> {
   }
 
   bool defaultFilter(Message m) {
-    var _currentUser = StreamChat.of(context).currentUser;
-    final isMyMessage = m.user?.id == _currentUser?.id;
+    final currentUser = StreamChat.of(context).currentUser;
+    final isMyMessage = m.user?.id == currentUser?.id;
     final isDeletedOrShadowed = m.isDeleted == true || m.shadowed == true;
     if (isDeletedOrShadowed && !isMyMessage) return false;
     return true;

packages/stream_chat_v1/lib/pages/user_mentions_page.dart

@@ -6,6 +6,8 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 import 'channel_page.dart';
 
 class UserMentionsPage extends StatefulWidget {
+  const UserMentionsPage({super.key});
+
   @override
   State<UserMentionsPage> createState() => _UserMentionsPageState();
 }
@@ -20,7 +22,7 @@ class _UserMentionsPageState extends State<UserMentionsPage> {
       value: StreamChat.of(context).currentUser!.id,
     ),
     sort: [
-      SortOption(
+      const SortOption(
         'created_at',
         direction: SortOption.ASC,
       ),
@@ -35,7 +37,7 @@ class _UserMentionsPageState extends State<UserMentionsPage> {
         return LayoutBuilder(
           builder: (context, viewportConstraints) {
             return SingleChildScrollView(
-              physics: AlwaysScrollableScrollPhysics(),
+              physics: const AlwaysScrollableScrollPhysics(),
               child: ConstrainedBox(
                 constraints: BoxConstraints(
                   minHeight: viewportConstraints.maxHeight,
@@ -70,6 +72,7 @@ class _UserMentionsPageState extends State<UserMentionsPage> {
       },
       onMessageTap: (messageResponse) async {
         final client = StreamChat.of(context).client;
+        final navigator = Navigator.of(context);
         final message = messageResponse.message;
         final channel = client.channel(
           messageResponse.channel!.type,
@@ -78,8 +81,7 @@ class _UserMentionsPageState extends State<UserMentionsPage> {
         if (channel.state == null) {
           await channel.watch();
         }
-        Navigator.pushNamed(
-          context,
+        navigator.pushNamed(
           Routes.CHANNEL_PAGE,
           arguments: ChannelPageArgs(
             channel: channel,

packages/stream_chat_v1/lib/routes/app_routes.dart

@@ -25,7 +25,7 @@ class AppRoutes {
         return MaterialPageRoute(
             settings: RouteSettings(arguments: args, name: Routes.APP),
             builder: (_) {
-              return MyApp();
+              return const StreamChatSampleApp();
             });
       case Routes.HOME:
         return MaterialPageRoute(
@@ -40,13 +40,13 @@ class AppRoutes {
         return MaterialPageRoute(
             settings: RouteSettings(arguments: args, name: Routes.CHOOSE_USER),
             builder: (_) {
-              return ChooseUserPage();
+              return const ChooseUserPage();
             });
       case Routes.ADVANCED_OPTIONS:
         return MaterialPageRoute(
           settings:
               RouteSettings(arguments: args, name: Routes.ADVANCED_OPTIONS),
-          builder: (_) => AdvancedOptionsPage(),
+          builder: (_) => const AdvancedOptionsPage(),
         );
       case Routes.CHANNEL_PAGE:
         return MaterialPageRoute(
@@ -83,14 +83,14 @@ class AppRoutes {
         return MaterialPageRoute(
             settings: RouteSettings(arguments: args, name: Routes.NEW_CHAT),
             builder: (_) {
-              return NewChatScreen();
+              return const NewChatScreen();
             });
       case Routes.NEW_GROUP_CHAT:
         return MaterialPageRoute(
             settings:
                 RouteSettings(arguments: args, name: Routes.NEW_GROUP_CHAT),
             builder: (_) {
-              return NewGroupChatScreen();
+              return const NewGroupChatScreen();
             });
       case Routes.NEW_GROUP_CHAT_DETAILS:
         return MaterialPageRoute(
@@ -125,7 +125,7 @@ class AppRoutes {
             settings:
                 RouteSettings(arguments: args, name: Routes.CHANNEL_LIST_PAGE),
             builder: (context) {
-              return ChannelListPage();
+              return const ChannelListPage();
             });
       // Default case, should not reach here.
       default:

packages/stream_chat_v1/lib/routes/routes.dart

@@ -1,3 +1,5 @@
+// ignore_for_file: constant_identifier_names
+
 /// Application routes
 abstract class Routes {
   static const String APP = '/app';

packages/stream_chat_v1/lib/utils/app_config.dart

@@ -9,7 +9,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoic2FsdmF0b3JlIn0.pgiJz7sIc7iP29BHKFwe3nLm5-OaR_1l2P-SlgiC9a8':
       User(
     id: 'salvatore',
-    extraData: {
+    extraData: const {
       'name': 'Salvatore Giordano',
       'image':
           'https://avatars.githubusercontent.com/u/20601437?s=460&u=3f66c22a7483980624804054ae7f357cf102c784&v=4',
@@ -18,7 +18,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoic2FoaWwifQ.WnIUoB5gR2kcAsFhiDvkiD6zdHXZ-VSU2aQWWkhsvfo':
       User(
     id: 'sahil',
-    extraData: {
+    extraData: const {
       'name': 'Sahil Kumar',
       'image':
           'https://avatars.githubusercontent.com/u/25670178?s=400&u=30ded3784d8d2310c5748f263fd5e6433c119aa1&v=4',
@@ -27,7 +27,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoiYmVuIn0.nAz2sNFGQwY7rl2Og2z3TGHUsdpnN53tOsUglJFvLmg':
       User(
     id: 'ben',
-    extraData: {
+    extraData: const {
       'name': 'Ben Golden',
       'image': 'https://avatars.githubusercontent.com/u/1581974?s=400&v=4',
     },
@@ -35,7 +35,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoidGhpZXJyeSJ9.lEq6TrZtHzjoNtf7HHRufUPyGo_pa8vg4_XhEBp4ckY':
       User(
     id: 'thierry',
-    extraData: {
+    extraData: const {
       'name': 'Thierry Schellenbach',
       'image':
           'https://avatars.githubusercontent.com/u/265409?s=400&u=2d0e3bb1820db992066196bff7b004f0eee8e28d&v=4',
@@ -44,7 +44,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoidG9tbWFzbyJ9.GLSI0ESshERMo2WjUpysD709NEtn1zmGimUN2an7g9o':
       User(
     id: 'tommaso',
-    extraData: {
+    extraData: const {
       'name': 'Tommaso Barbugli',
       'image': 'https://avatars.githubusercontent.com/u/88735?s=400&v=4',
     },
@@ -52,7 +52,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoiZGV2ZW4ifQ.z3zI4PqJnNhc-1o-VKcmb6BnnQ0oxFNCRHwEulHqcWc':
       User(
     id: 'deven',
-    extraData: {
+    extraData: const {
       'name': 'Deven Joshi',
       'image':
           'https://avatars.githubusercontent.com/u/26357843?s=400&u=0c61d890866e67bf69f58878be58915e9bfd39ee&v=4',
@@ -61,7 +61,7 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoibmVldmFzaCJ9.3EdHegTxibrz3A9cTiKmpEyawwcCVB8FXnoFzr4eKvw':
       User(
     id: 'neevash',
-    extraData: {
+    extraData: const {
       'name': 'Neevash Ramdial',
       'image':
           'https://avatars.githubusercontent.com/u/25674767?s=400&u=1d7333baf7dd9d143db8bfcdb31a838b89cfff9c&v=4',
@@ -70,14 +70,14 @@ final defaultUsers = <String, User>{
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoicWF0ZXN0MSJ9.fnelU7HcP7QoEEsCGteNlF1fppofzNlrnpDQuIgeKCU':
       User(
     id: 'qatest1',
-    extraData: {
+    extraData: const {
       'name': 'QA test 1',
     },
   ),
   'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoicWF0ZXN0MiJ9.vSCqAEbs2WVmMWsOsa7065Fsjq-rsTih6qsHPynl7XM':
       User(
     id: 'qatest2',
-    extraData: {
+    extraData: const {
       'name': 'QA test 2',
     },
   ),

packages/stream_chat_v1/lib/utils/notifications_service.dart

@@ -20,18 +20,23 @@ void showLocalNotification(
   }
   if (event.message == null) return;
   final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
-  final initializationSettingsAndroid =
+  const initializationSettingsAndroid =
       AndroidInitializationSettings('launch_background');
-  final initializationSettingsIOS = IOSInitializationSettings();
-  final initializationSettings = InitializationSettings(
+  const initializationSettingsIOS = IOSInitializationSettings();
+  const initializationSettings = InitializationSettings(
     android: initializationSettingsAndroid,
     iOS: initializationSettingsIOS,
   );
+
+  final appLocalizations = AppLocalizations.of(context);
+
   await flutterLocalNotificationsPlugin.initialize(
     initializationSettings,
     onSelectNotification: (channelCid) async {
       if (channelCid != null) {
         final client = StreamChat.of(context).client;
+        final navigator = Navigator.of(context);
+
         var channel = client.state.channels[channelCid];
 
         if (channel == null) {
@@ -45,8 +50,7 @@ void showLocalNotification(
           await channel.watch();
         }
 
-        Navigator.pushNamed(
-          context,
+        navigator.pushNamed(
           Routes.CHANNEL_PAGE,
           arguments: ChannelPageArgs(
             channel: channel,
@@ -62,13 +66,12 @@ void showLocalNotification(
     NotificationDetails(
       android: AndroidNotificationDetails(
         'message channel',
-        AppLocalizations.of(context).messageChannelName,
-        channelDescription:
-            AppLocalizations.of(context).messageChannelDescription,
+        appLocalizations.messageChannelName,
+        channelDescription: appLocalizations.messageChannelDescription,
         priority: Priority.high,
         importance: Importance.high,
       ),
-      iOS: IOSNotificationDetails(),
+      iOS: const IOSNotificationDetails(),
     ),
     payload: '${event.channelType}:${event.channelId}',
   );

packages/stream_chat_v1/lib/widgets/channel_list.dart

@@ -13,21 +13,23 @@ import '../pages/chat_info_screen.dart';
 import '../pages/group_info_screen.dart';
 
 class ChannelList extends StatefulWidget {
+  const ChannelList({super.key});
+
   @override
-  _ChannelList createState() => _ChannelList();
+  State<ChannelList> createState() => _ChannelList();
 }
 
 class _ChannelList extends State<ChannelList> {
-  ScrollController _scrollController = ScrollController();
+  final ScrollController _scrollController = ScrollController();
 
-  late StreamMessageSearchListController _messageSearchListController =
+  late final StreamMessageSearchListController _messageSearchListController =
       StreamMessageSearchListController(
     client: StreamChat.of(context).client,
     filter: Filter.in_('members', [StreamChat.of(context).currentUser!.id]),
     limit: 5,
     searchQuery: '',
     sort: [
-      SortOption(
+      const SortOption(
         'created_at',
         direction: SortOption.ASC,
       ),
@@ -116,7 +118,7 @@ class _ChannelList extends State<ChannelList> {
                     return LayoutBuilder(
                       builder: (context, viewportConstraints) {
                         return SingleChildScrollView(
-                          physics: AlwaysScrollableScrollPhysics(),
+                          physics: const AlwaysScrollableScrollPhysics(),
                           child: ConstrainedBox(
                             constraints: BoxConstraints(
                               minHeight: viewportConstraints.maxHeight,
@@ -153,6 +155,7 @@ class _ChannelList extends State<ChannelList> {
                         final messageResponse = messageResponses[index];
                         FocusScope.of(context).requestFocus(FocusNode());
                         final client = StreamChat.of(context).client;
+                        final navigator = Navigator.of(context);
                         final message = messageResponse.message;
                         final channel = client.channel(
                           messageResponse.channel!.type,
@@ -161,8 +164,7 @@ class _ChannelList extends State<ChannelList> {
                         if (channel.state == null) {
                           await channel.watch();
                         }
-                        Navigator.pushNamed(
-                          context,
+                        navigator.pushNamed(
                           Routes.CHANNEL_PAGE,
                           arguments: ChannelPageArgs(
                             channel: channel,
@@ -192,7 +194,6 @@ class _ChannelList extends State<ChannelList> {
                             motion: const BehindMotion(),
                             children: [
                               CustomSlidableAction(
-                                child: Icon(Icons.more_horiz),
                                 backgroundColor: backgroundColor,
                                 onPressed: (_) {
                                   showChannelInfoModalBottomSheet(
@@ -236,6 +237,7 @@ class _ChannelList extends State<ChannelList> {
                                     },
                                   );
                                 },
+                                child: const Icon(Icons.more_horiz),
                               ),
                               if (canDeleteChannel)
                                 CustomSlidableAction(

packages/stream_chat_v1/lib/widgets/chips_input_text_field.dart

@@ -68,97 +68,95 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
       child: Material(
         elevation: 1,
         color: StreamChatTheme.of(context).colorTheme.barsBg,
-        child: Container(
-          child: Padding(
-            padding: const EdgeInsets.fromLTRB(16, 16, 16, 16),
-            child: Row(
-              children: [
-                Padding(
-                  padding: const EdgeInsets.symmetric(vertical: 4.0),
-                  child: Text(
-                    '${AppLocalizations.of(context).to.toUpperCase()}:',
-                    style: StreamChatTheme.of(context)
-                        .textTheme
-                        .footnote
-                        .copyWith(
-                            color: StreamChatTheme.of(context)
-                                .colorTheme
-                                .textHighEmphasis
-                                .withOpacity(.5)),
-                  ),
+        child: Padding(
+          padding: const EdgeInsets.fromLTRB(16, 16, 16, 16),
+          child: Row(
+            children: [
+              Padding(
+                padding: const EdgeInsets.symmetric(vertical: 4.0),
+                child: Text(
+                  '${AppLocalizations.of(context).to.toUpperCase()}:',
+                  style: StreamChatTheme.of(context)
+                      .textTheme
+                      .footnote
+                      .copyWith(
+                          color: StreamChatTheme.of(context)
+                              .colorTheme
+                              .textHighEmphasis
+                              .withOpacity(.5)),
                 ),
-                SizedBox(width: 12),
-                Expanded(
-                  child: Column(
-                    crossAxisAlignment: CrossAxisAlignment.start,
-                    mainAxisSize: MainAxisSize.min,
-                    children: [
-                      Wrap(
-                        spacing: 8.0,
-                        runSpacing: 4.0,
-                        children: _chips.map((item) {
-                          return widget.chipBuilder(context, item);
-                        }).toList(),
-                      ),
-                      if (!_pauseItemAddition)
-                        TextField(
-                          controller: widget.controller,
-                          onChanged: widget.onInputChanged,
-                          focusNode: widget.focusNode,
-                          decoration: InputDecoration(
-                            isDense: true,
-                            border: InputBorder.none,
-                            focusedBorder: InputBorder.none,
-                            enabledBorder: InputBorder.none,
-                            errorBorder: InputBorder.none,
-                            disabledBorder: InputBorder.none,
-                            contentPadding: const EdgeInsets.only(top: 4.0),
-                            hintText: widget.hint,
-                            hintStyle: StreamChatTheme.of(context)
-                                .textTheme
-                                .body
-                                .copyWith(
-                                    color: StreamChatTheme.of(context)
-                                        .colorTheme
-                                        .textHighEmphasis
-                                        .withOpacity(.5)),
-                          ),
-                        ),
-                    ],
-                  ),
-                ),
-                SizedBox(width: 12),
-                Align(
-                  alignment: Alignment.bottomCenter,
-                  child: IconButton(
-                    icon: _chips.isEmpty
-                        ? StreamSvgIcon.user(
-                            color: StreamChatTheme.of(context)
-                                .colorTheme
-                                .textHighEmphasis
-                                .withOpacity(0.5),
-                            size: 24,
-                          )
-                        : StreamSvgIcon.userAdd(
-                            color: StreamChatTheme.of(context)
-                                .colorTheme
-                                .textHighEmphasis
-                                .withOpacity(0.5),
-                            size: 24,
-                          ),
-                    onPressed: resumeItemAddition,
-                    alignment: Alignment.topRight,
-                    visualDensity: VisualDensity.compact,
-                    padding: const EdgeInsets.all(0),
-                    splashRadius: 24,
-                    constraints: BoxConstraints.tightFor(
-                      height: 24,
-                      width: 24,
+              ),
+              const SizedBox(width: 12),
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Wrap(
+                      spacing: 8.0,
+                      runSpacing: 4.0,
+                      children: _chips.map((item) {
+                        return widget.chipBuilder(context, item);
+                      }).toList(),
                     ),
+                    if (!_pauseItemAddition)
+                      TextField(
+                        controller: widget.controller,
+                        onChanged: widget.onInputChanged,
+                        focusNode: widget.focusNode,
+                        decoration: InputDecoration(
+                          isDense: true,
+                          border: InputBorder.none,
+                          focusedBorder: InputBorder.none,
+                          enabledBorder: InputBorder.none,
+                          errorBorder: InputBorder.none,
+                          disabledBorder: InputBorder.none,
+                          contentPadding: const EdgeInsets.only(top: 4.0),
+                          hintText: widget.hint,
+                          hintStyle: StreamChatTheme.of(context)
+                              .textTheme
+                              .body
+                              .copyWith(
+                                  color: StreamChatTheme.of(context)
+                                      .colorTheme
+                                      .textHighEmphasis
+                                      .withOpacity(.5)),
+                        ),
+                      ),
+                  ],
+                ),
+              ),
+              const SizedBox(width: 12),
+              Align(
+                alignment: Alignment.bottomCenter,
+                child: IconButton(
+                  icon: _chips.isEmpty
+                      ? StreamSvgIcon.user(
+                          color: StreamChatTheme.of(context)
+                              .colorTheme
+                              .textHighEmphasis
+                              .withOpacity(0.5),
+                          size: 24,
+                        )
+                      : StreamSvgIcon.userAdd(
+                          color: StreamChatTheme.of(context)
+                              .colorTheme
+                              .textHighEmphasis
+                              .withOpacity(0.5),
+                          size: 24,
+                        ),
+                  onPressed: resumeItemAddition,
+                  alignment: Alignment.topRight,
+                  visualDensity: VisualDensity.compact,
+                  padding: const EdgeInsets.all(0),
+                  splashRadius: 24,
+                  constraints: const BoxConstraints.tightFor(
+                    height: 24,
+                    width: 24,
                   ),
                 ),
-              ],
-            ),
+              ),
+            ],
           ),
         ),
       ),

packages/stream_chat_v1/lib/widgets/search_text_field.dart

@@ -41,7 +41,7 @@ class SearchTextField extends StatelessWidget {
               onChanged: onChanged,
               decoration: InputDecoration(
                 prefixText: '    ',
-                prefixIconConstraints: BoxConstraints.tight(Size(40, 24)),
+                prefixIconConstraints: BoxConstraints.tight(const Size(40, 24)),
                 prefixIcon: Padding(
                   padding: const EdgeInsets.only(
                     left: 8,

packages/stream_chat_v1/lib/widgets/stream_version.dart

@@ -18,7 +18,7 @@ class StreamVersion extends StatelessWidget {
         future: rootBundle.loadString('pubspec.lock'),
         builder: (context, snapshot) {
           if (!snapshot.hasData) {
-            return SizedBox();
+            return const SizedBox();
           }
 
           final pubspec = snapshot.data!;

packages/stream_chat_v1/pubspec.yaml

@@ -39,6 +39,7 @@ dependencies:
 dev_dependencies:
   flutter_launcher_icons: ^0.9.2
   test: any
+  flutter_lints: ^2.0.0
 
 dependency_overrides:
   stream_chat: