Merge pull request #42 from GetStream/develop

update main

.github/workflows/build_nightly.yml

@@ -69,3 +69,24 @@ jobs:
         with:
           name: android-stream-chat-v1
           path: packages/stream_chat_v1/build/app/outputs/apk/release/app-release.apk
+  build_and_deploy_web:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: config git
+        run: |
+          git config --global user.email "$(git log --format='%ae' HEAD^!)"
+          git config --global user.name "$(git log --format='%an' HEAD^!)"
+          git fetch origin gh-pages:gh-pages
+      - uses: subosito/flutter-action@v1.4.0
+        with:
+          channel: 'stable'
+      - run: flutter pub get
+      - name: Copy production config
+        run: echo "${{ secrets.PRODUCTION_CONFIG }}" > lib/app_config.dart
+      - uses: erickzanardo/flutter-gh-pages@v3
+        with:
+          webRenderer: canvaskit
+          workingDir: packages/stream_chat_v1
+
+

packages/chatty/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -2,6 +2,6 @@
 <Workspace
    version = "1.0">
    <FileRef
-      location = "group:Runner.xcodeproj">
+      location = "self:">
    </FileRef>
 </Workspace>

packages/chatty/lib/data/auth_repository.dart

@@ -1,7 +1,7 @@
 import 'package:stream_chatter/domain/models/auth_user.dart';
 
 abstract class AuthRepository {
-  Future<AuthUser> getAuthUser();
+  Future<AuthUser?> getAuthUser();
   Future<AuthUser> signIn();
   Future<void> logout();
 }

packages/chatty/lib/data/image_picker_repository.dart

@@ -1,5 +1,5 @@
 import 'dart:io';
 
 abstract class ImagePickerRepository {
-  Future<File> pickImage();
+  Future<File?> pickImage();
 }

packages/chatty/lib/data/local/image_picker_impl.dart

@@ -4,9 +4,17 @@ import 'package:stream_chatter/data/image_picker_repository.dart';
 
 class ImagePickerImpl extends ImagePickerRepository {
   @override
-  Future<File> pickImage() async {
+  Future<File?> pickImage() async {
     final picker = ImagePicker();
-    final pickedFile = await picker.getImage(source: ImageSource.gallery, maxWidth: 400);
+    final pickedFile = await picker.getImage(
+      source: ImageSource.gallery,
+      maxWidth: 400,
+    );
+
+    if (pickedFile == null) {
+      return null;
+    }
+
     return File(pickedFile.path);
   }
 }

packages/chatty/lib/data/local/stream_api_local_impl.dart

@@ -8,7 +8,7 @@ class StreamApiLocalImpl extends StreamApiRepository {
   final StreamChatClient _client;
 
   @override
-  Future<ChatUser> connectUser(ChatUser user, String token) async {
+  Future<ChatUser> connectUser(ChatUser user, String? token) async {
     Map<String, dynamic> extraData = {};
     if (user.image != null) {
       extraData['image'] = user.image;
@@ -18,7 +18,7 @@ class StreamApiLocalImpl extends StreamApiRepository {
     }
     await _client.disconnect();
     await _client.connectUser(
-      User(id: user.id, extraData: extraData),
+      User(id: user.id!, extraData: extraData as Map<String, Object>),
       token,
     );
     return user;
@@ -28,12 +28,12 @@ class StreamApiLocalImpl extends StreamApiRepository {
   Future<List<ChatUser>> getChatUsers() async {
     final result = await _client.queryUsers();
     final chatUsers = result.users
-        .where((element) => element.id != _client.state.user.id)
+        .where((element) => element.id != _client.state.user!.id)
         .map(
           (e) => ChatUser(
             id: e.id,
             name: e.name,
-            image: e.extraData['image'],
+            image: e.extraData['image'] as String?,
           ),
         )
         .toList();
@@ -46,25 +46,28 @@ class StreamApiLocalImpl extends StreamApiRepository {
   }
 
   @override
-  Future<Channel> createGroupChat(String channelId, String name, List<String> members, {String image}) async {
+  Future<Channel> createGroupChat(
+      String channelId, String? name, List<String?>? members,
+      {String? image}) async {
     final channel = _client.channel('messaging', id: channelId, extraData: {
-      'name': name,
-      'image': image,
-      'members': [_client.state.user.id, ...members],
+      'name': name!,
+      'image': image!,
+      'members': [_client.state.user!.id, ...members!],
     });
     await channel.watch();
     return channel;
   }
 
   @override
-  Future<Channel> createSimpleChat(String friendId) async {
-    final channel =
-        _client.channel('messaging', id: '${_client.state.user.id.hashCode}${friendId.hashCode}', extraData: {
-      'members': [
-        friendId,
-        _client.state.user.id,
-      ],
-    });
+  Future<Channel> createSimpleChat(String? friendId) async {
+    final channel = _client.channel('messaging',
+        id: '${_client.state.user!.id.hashCode}${friendId.hashCode}',
+        extraData: {
+          'members': [
+            friendId,
+            _client.state.user!.id,
+          ],
+        });
     await channel.watch();
     return channel;
   }
@@ -81,6 +84,6 @@ class StreamApiLocalImpl extends StreamApiRepository {
       User(id: userId),
       token,
     );
-    return _client.state.user.name != null && _client.state.user.name != userId;
+    return _client.state.user!.name != userId;
   }
 }

packages/chatty/lib/data/local/upload_storage_local_impl.dart

@@ -4,7 +4,7 @@ import 'package:stream_chatter/data/upload_storage_repository.dart';
 
 class UploadStorageLocalImpl extends UploadStorageRepository {
   @override
-  Future<String> uploadPhoto(File file, String path) async {
+  Future<String> uploadPhoto(File? file, String path) async {
     return 'https://lh3.googleusercontent.com/a-/AOh14GjhqGZ-V7tNXS1pOIp9vbBij4OS9JbzxXgxgy1t=s600-k-no-rp-mo';
   }
 }

packages/chatty/lib/data/prod/auth_impl.dart

@@ -7,7 +7,7 @@ class AuthImpl extends AuthRepository {
   FirebaseAuth _auth = FirebaseAuth.instance;
 
   @override
-  Future<AuthUser> getAuthUser() async {
+  Future<AuthUser?> getAuthUser() async {
     final user = _auth.currentUser;
     if (user != null) {
       return AuthUser(user.uid);
@@ -19,14 +19,21 @@ class AuthImpl extends AuthRepository {
   Future<AuthUser> signIn() async {
     try {
       UserCredential userCredential;
-      final GoogleSignInAccount googleUser = await GoogleSignIn().signIn();
-      final GoogleSignInAuthentication googleAuth = await googleUser.authentication;
-      final GoogleAuthCredential googleAuthCredential = GoogleAuthProvider.credential(
+      final GoogleSignInAccount? googleUser = await GoogleSignIn().signIn();
+
+      if (googleUser == null) {
+        throw Exception('login error');
+      }
+
+      final GoogleSignInAuthentication googleAuth =
+          await googleUser.authentication;
+      final GoogleAuthCredential googleAuthCredential =
+          GoogleAuthProvider.credential(
         accessToken: googleAuth.accessToken,
         idToken: googleAuth.idToken,
-      );
+      ) as GoogleAuthCredential;
       userCredential = await _auth.signInWithCredential(googleAuthCredential);
-      final user = userCredential.user;
+      final user = userCredential.user!;
       return AuthUser(user.uid);
     } catch (e) {
       print(e);

packages/chatty/lib/data/prod/persistent_storage_impl.dart

@@ -13,6 +13,6 @@ class PersistentStorageImpl extends PersistentStorageRepository {
   @override
   Future<void> updateDarkMode(bool isDarkMode) async {
     final preference = await SharedPreferences.getInstance();
-    return await preference.setBool(_isDarkMode, isDarkMode);
+    await preference.setBool(_isDarkMode, isDarkMode);
   }
 }

packages/chatty/lib/data/prod/stream_api_impl.dart

@@ -11,7 +11,7 @@ class StreamApiImpl extends StreamApiRepository {
   final StreamChatClient _client;
 
   @override
-  Future<ChatUser> connectUser(ChatUser user, String token) async {
+  Future<ChatUser> connectUser(ChatUser user, String? token) async {
     Map<String, dynamic> extraData = {};
     if (user.image != null) {
       extraData['image'] = user.image;
@@ -21,7 +21,7 @@ class StreamApiImpl extends StreamApiRepository {
     }
     await _client.disconnect();
     await _client.connectUser(
-      User(id: user.id, extraData: extraData),
+      User(id: user.id!, extraData: extraData as Map<String, Object>),
       token,
     );
     return user;
@@ -31,12 +31,12 @@ class StreamApiImpl extends StreamApiRepository {
   Future<List<ChatUser>> getChatUsers() async {
     final result = await _client.queryUsers();
     final chatUsers = result.users
-        .where((element) => element.id != _client.state.user.id)
+        .where((element) => element.id != _client.state.user!.id)
         .map(
           (e) => ChatUser(
             id: e.id,
             name: e.name,
-            image: e.extraData['image'],
+            image: e.extraData['image'] as String?,
           ),
         )
         .toList();
@@ -44,10 +44,10 @@ class StreamApiImpl extends StreamApiRepository {
   }
 
   @override
-  Future<String> getToken(String userId) async {
+  Future<String?> getToken(String userId) async {
     //TODO: use your own implementation in Production
     final response = await http.post(
-      'your_backend_url',
+      Uri.parse('your_backend_url'),
       body: jsonEncode(<String, String>{'id': userId}),
       headers: <String, String>{
         'Content-Type': 'application/json; charset=UTF-8',
@@ -62,25 +62,27 @@ class StreamApiImpl extends StreamApiRepository {
   }
 
   @override
-  Future<Channel> createGroupChat(String id, String name, List<String> members, {String image}) async {
+  Future<Channel> createGroupChat(String id, String? name, List<String?>? members,
+      {String? image}) async {
     final channel = _client.channel('messaging', id: id, extraData: {
-      'name': name,
-      'image': image,
-      'members': [_client.state.user.id, ...members],
+      'name': name!,
+      'image': image!,
+      'members': [_client.state.user!.id, ...members!],
     });
     await channel.watch();
     return channel;
   }
 
   @override
-  Future<Channel> createSimpleChat(String friendId) async {
-    final channel =
-        _client.channel('messaging', id: '${_client.state.user.id.hashCode}${friendId.hashCode}', extraData: {
-      'members': [
-        friendId,
-        _client.state.user.id,
-      ],
-    });
+  Future<Channel> createSimpleChat(String? friendId) async {
+    final channel = _client.channel('messaging',
+        id: '${_client.state.user!.id.hashCode}${friendId.hashCode}',
+        extraData: {
+          'members': [
+            friendId,
+            _client.state.user!.id,
+          ],
+        });
     await channel.watch();
     return channel;
   }
@@ -97,6 +99,6 @@ class StreamApiImpl extends StreamApiRepository {
       User(id: userId),
       token,
     );
-    return _client.state.user.name != null && _client.state.user.name != userId;
+    return _client.state.user!.name != userId;
   }
 }

packages/chatty/lib/data/prod/upload_storage_impl.dart

@@ -4,9 +4,9 @@ import 'package:stream_chatter/data/upload_storage_repository.dart';
 
 class UploadStorageImpl extends UploadStorageRepository {
   @override
-  Future<String> uploadPhoto(File file, String path) async {
+  Future<String> uploadPhoto(File? file, String path) async {
     final ref = firebase_storage.FirebaseStorage.instance.ref(path);
-    final uploadTask = ref.putFile(file);
+    final uploadTask = ref.putFile(file!);
     await uploadTask;
     return await ref.getDownloadURL();
   }

packages/chatty/lib/data/stream_api_repository.dart

@@ -3,10 +3,12 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 abstract class StreamApiRepository {
   Future<List<ChatUser>> getChatUsers();
-  Future<String> getToken(String userId);
+  Future<String?> getToken(String userId);
   Future<bool> connectIfExist(String userId);
-  Future<ChatUser> connectUser(ChatUser user, String token);
-  Future<Channel> createGroupChat(String channelId, String name, List<String> members, {String image});
-  Future<Channel> createSimpleChat(String friendId);
+  Future<ChatUser> connectUser(ChatUser user, String? token);
+  Future<Channel> createGroupChat(
+      String channelId, String? name, List<String?>? members,
+      {String? image});
+  Future<Channel> createSimpleChat(String? friendId);
   Future<void> logout();
 }

packages/chatty/lib/data/upload_storage_repository.dart

@@ -1,5 +1,5 @@
 import 'dart:io';
 
 abstract class UploadStorageRepository {
-  Future<String> uploadPhoto(File file, String path);
+  Future<String> uploadPhoto(File? file, String path);
 }

packages/chatty/lib/dependencies.dart

@@ -18,10 +18,13 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 List<RepositoryProvider> buildRepositories(StreamChatClient client) {
   //TODO: Here you can use your local implementations of your repositories
   return [
-    RepositoryProvider<StreamApiRepository>(create: (_) => StreamApiImpl(client)),
-    RepositoryProvider<PersistentStorageRepository>(create: (_) => PersistentStorageImpl()),
+    RepositoryProvider<StreamApiRepository>(
+        create: (_) => StreamApiImpl(client)),
+    RepositoryProvider<PersistentStorageRepository>(
+        create: (_) => PersistentStorageImpl()),
     RepositoryProvider<AuthRepository>(create: (_) => AuthImpl()),
-    RepositoryProvider<UploadStorageRepository>(create: (_) => UploadStorageImpl()),
+    RepositoryProvider<UploadStorageRepository>(
+        create: (_) => UploadStorageImpl()),
     RepositoryProvider<ImagePickerRepository>(create: (_) => ImagePickerImpl()),
     RepositoryProvider<ProfileSignInUseCase>(
       create: (context) => ProfileSignInUseCase(

packages/chatty/lib/domain/models/chat_user.dart

@@ -1,6 +1,6 @@
 class ChatUser {
   const ChatUser({this.name, this.image, this.id});
-  final String name;
-  final String image;
-  final String id;
+  final String? name;
+  final String? image;
+  final String? id;
 }

packages/chatty/lib/domain/usecases/create_group_usecase.dart

@@ -7,9 +7,9 @@ import 'package:uuid/uuid.dart';
 
 class CreateGroupInput {
   CreateGroupInput({this.imageFile, this.name, this.members});
-  final File imageFile;
-  final String name;
-  final List<String> members;
+  final File? imageFile;
+  final String? name;
+  final List<String?>? members;
 }
 
 class CreateGroupUseCase {
@@ -23,9 +23,10 @@ class CreateGroupUseCase {
 
   Future<Channel> createGroup(CreateGroupInput input) async {
     final channelId = Uuid().v4();
-    String image;
+    String? image;
     if (input.imageFile != null) {
-      image = await _uploadStorageRepository.uploadPhoto(input.imageFile, 'channels/$channelId');
+      image = await _uploadStorageRepository.uploadPhoto(
+          input.imageFile, 'channels/$channelId');
     }
     final channel = await _streamApiRepository.createGroupChat(
       channelId,

packages/chatty/lib/domain/usecases/profile_sign_in_usecase.dart

@@ -5,10 +5,12 @@ import 'package:stream_chatter/data/stream_api_repository.dart';
 import 'package:stream_chatter/data/upload_storage_repository.dart';
 import 'package:stream_chatter/domain/models/chat_user.dart';
 
+import '../exceptions/auth_exception.dart';
+
 class ProfileInput {
   ProfileInput({this.imageFile, this.name});
-  final File imageFile;
-  final String name;
+  final File? imageFile;
+  final String? name;
 }
 
 class ProfileSignInUseCase {
@@ -24,11 +26,21 @@ class ProfileSignInUseCase {
 
   Future<void> verify(ProfileInput input) async {
     final auth = await _authRepository.getAuthUser();
-    final token = await _streamApiRepository.getToken(auth.id);
-    String image;
-    if (input.imageFile != null) {
-      image = await _uploadStorageRepository.uploadPhoto(input.imageFile, 'users/${auth.id}');
+    if (auth == null) {
+      throw AuthException(AuthErrorCode.not_auth);
     }
-    await _streamApiRepository.connectUser(ChatUser(name: input.name, id: auth.id, image: image), token);
+    final token = await _streamApiRepository.getToken(auth.id);
+    String? image;
+    if (input.imageFile != null) {
+      image = await _uploadStorageRepository.uploadPhoto(
+          input.imageFile, 'users/${auth.id}');
+    }
+    await _streamApiRepository.connectUser(
+        ChatUser(
+          name: input.name,
+          id: auth.id,
+          image: image,
+        ),
+        token);
   }
 }

packages/chatty/lib/main.dart

@@ -34,7 +34,8 @@ class MyApp extends StatelessWidget {
               return StreamChat(
                 child: child,
                 client: _streamChatClient,
-                streamChatThemeData: StreamChatThemeData.fromTheme(Theme.of(context)).copyWith(
+                streamChatThemeData:
+                    StreamChatThemeData.fromTheme(Theme.of(context)).copyWith(
                   ownMessageTheme: MessageTheme(
                     messageBackgroundColor: Theme.of(context).accentColor,
                     messageText: TextStyle(color: Colors.white),

packages/chatty/lib/navigator_utils.dart

@@ -18,5 +18,7 @@ Future pushAndReplaceToPage(BuildContext context, Widget widget) async {
 
 Future popAllAndPush(BuildContext context, Widget widget) async {
   await Navigator.pushAndRemoveUntil(
-      context, MaterialPageRoute(builder: (BuildContext context) => widget), ModalRoute.withName('/'));
+      context,
+      MaterialPageRoute(builder: (BuildContext context) => widget),
+      ModalRoute.withName('/'));
 }

packages/chatty/lib/ui/common/avatar_image_view.dart

@@ -1,9 +1,9 @@
 import 'package:flutter/material.dart';
 
 class AvatarImageView extends StatelessWidget {
-  const AvatarImageView({Key key, this.onTap, this.child}) : super(key: key);
-  final Widget child;
-  final VoidCallback onTap;
+  const AvatarImageView({Key? key, this.onTap, this.child}) : super(key: key);
+  final Widget? child;
+  final VoidCallback? onTap;
 
   @override
   Widget build(BuildContext context) {

packages/chatty/lib/ui/common/loading_view.dart

@@ -5,8 +5,8 @@ class LoadingView extends StatelessWidget {
   final Widget child;
 
   const LoadingView({
-    Key key,
-    @required this.child,
+    Key? key,
+    required this.child,
     this.isLoading = false,
   }) : super(key: key);
 

packages/chatty/lib/ui/common/my_channel_preview.dart

@@ -1,3 +1,4 @@
+import 'package:collection/collection.dart' show IterableExtension;
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:jiffy/jiffy.dart';
@@ -30,22 +31,22 @@ import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
 /// Modify it to change the widget appearance.
 class MyChannelPreview extends StatelessWidget {
   /// Function called when tapping this widget
-  final void Function(Channel) onTap;
+  final void Function(Channel)? onTap;
 
   /// Function called when long pressing this widget
-  final void Function(Channel) onLongPress;
+  final void Function(Channel)? onLongPress;
 
   /// Channel displayed
   final Channel channel;
 
   /// The function called when the image is tapped
-  final VoidCallback onImageTap;
+  final VoidCallback? onImageTap;
 
-  final String heroTag;
+  final String? heroTag;
 
   MyChannelPreview({
-    @required this.channel,
-    Key key,
+    required this.channel,
+    Key? key,
     this.onTap,
     this.onLongPress,
     this.onImageTap,
@@ -59,24 +60,24 @@ class MyChannelPreview extends StatelessWidget {
         initialData: channel.isMuted,
         builder: (context, snapshot) {
           return Opacity(
-            opacity: snapshot.data ? 0.5 : 1,
+            opacity: snapshot.data! ? 0.5 : 1,
             child: ListTile(
               contentPadding: const EdgeInsets.symmetric(
                 horizontal: 8,
               ),
               onTap: () {
                 if (onTap != null) {
-                  onTap(channel);
+                  onTap!(channel);
                 }
               },
               onLongPress: () {
                 if (onLongPress != null) {
-                  onLongPress(channel);
+                  onLongPress!(channel);
                 }
               },
               leading: Material(
                 child: Hero(
-                  tag: heroTag,
+                  tag: heroTag!,
                   child: StreamChannel(
                     channel: channel,
                     child: ChannelImage(
@@ -90,16 +91,18 @@ class MyChannelPreview extends StatelessWidget {
                 children: <Widget>[
                   Flexible(
                     child: ChannelName(
-                      textStyle: StreamChatTheme.of(context).channelPreviewTheme.title,
+                      textStyle:
+                          StreamChatTheme.of(context).channelPreviewTheme.title,
                     ),
                   ),
                   StreamBuilder<List<Member>>(
-                      stream: channel.state.membersStream,
-                      initialData: channel.state.members,
+                      stream: channel.state!.membersStream,
+                      initialData: channel.state!.members,
                       builder: (context, snapshot) {
                         if (!snapshot.hasData ||
-                            snapshot.data.isEmpty ||
-                            !snapshot.data.any((Member e) => e.user.id == channel.client.state.user.id)) {
+                            snapshot.data!.isEmpty ||
+                            !snapshot.data!.any((Member e) =>
+                                e.user!.id == channel.client.state.user!.id)) {
                           return SizedBox();
                         }
                         return ChannelUnreadIndicator(
@@ -114,20 +117,26 @@ class MyChannelPreview extends StatelessWidget {
                   Flexible(child: _buildSubtitle(context)),
                   Builder(
                     builder: (context) {
-                      final lastMessage = channel.state.messages.lastWhere(
+                      final lastMessage =
+                          channel.state!.messages.lastWhereOrNull(
                         (m) => !m.isDeleted && m.shadowed != true,
-                        orElse: () => null,
                       );
-                      if (lastMessage?.user?.id == StreamChat.of(context).user.id) {
+                      if (lastMessage?.user?.id ==
+                          StreamChat.of(context).user!.id) {
                         return Padding(
                           padding: const EdgeInsets.only(right: 4.0),
                           child: SendingIndicator(
-                            message: lastMessage,
-                            size: StreamChatTheme.of(context).channelPreviewTheme.indicatorIconSize,
-                            isMessageRead: channel.state.read
-                                    ?.where((element) => element.user.id != channel.client.state.user.id)
-                                    ?.where((element) => element.lastRead.isAfter(lastMessage.createdAt))
-                                    ?.isNotEmpty ==
+                            message: lastMessage!,
+                            size: StreamChatTheme.of(context)
+                                .channelPreviewTheme
+                                .indicatorIconSize,
+                            isMessageRead: channel.state!.read
+                                    ?.where((element) =>
+                                        element.user.id !=
+                                        channel.client.state.user!.id)
+                                    .where((element) => element.lastRead
+                                        .isAfter(lastMessage.createdAt))
+                                    .isNotEmpty ==
                                 true,
                           ),
                         );
@@ -144,21 +153,22 @@ class MyChannelPreview extends StatelessWidget {
   }
 
   Widget _buildDate(BuildContext context) {
-    return StreamBuilder<DateTime>(
+    return StreamBuilder<DateTime?>(
       stream: channel.lastMessageAtStream,
       initialData: channel.lastMessageAt,
       builder: (context, snapshot) {
         if (!snapshot.hasData) {
           return SizedBox();
         }
-        final lastMessageAt = snapshot.data.toLocal();
+        final lastMessageAt = snapshot.data!.toLocal();
 
         String stringDate;
         final now = DateTime.now();
 
         var startOfDay = DateTime(now.year, now.month, now.day);
 
-        if (lastMessageAt.millisecondsSinceEpoch >= startOfDay.millisecondsSinceEpoch) {
+        if (lastMessageAt.millisecondsSinceEpoch >=
+            startOfDay.millisecondsSinceEpoch) {
           stringDate = Jiffy(lastMessageAt.toLocal()).format('HH:mm');
         } else if (lastMessageAt.millisecondsSinceEpoch >=
             startOfDay.subtract(Duration(days: 1)).millisecondsSinceEpoch) {
@@ -187,8 +197,14 @@ class MyChannelPreview extends StatelessWidget {
           ),
           Text(
             '  Channel is muted',
-            style: StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
-                  color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
+            style: StreamChatTheme.of(context)
+                .channelPreviewTheme
+                .subtitle!
+                .copyWith(
+                  color: StreamChatTheme.of(context)
+                      .channelPreviewTheme
+                      .subtitle!
+                      .color,
                 ),
           ),
         ],
@@ -197,52 +213,64 @@ class MyChannelPreview extends StatelessWidget {
     return TypingIndicator(
       channel: channel,
       alternativeWidget: _buildLastMessage(context),
-      style: StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
-            color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
+      style: StreamChatTheme.of(context).channelPreviewTheme.subtitle!.copyWith(
+            color:
+                StreamChatTheme.of(context).channelPreviewTheme.subtitle!.color,
           ),
     );
   }
 
   Widget _buildLastMessage(BuildContext context) {
-    return StreamBuilder<List<Message>>(
-      stream: channel.state.messagesStream,
-      initialData: channel.state.messages,
+    return StreamBuilder<List<Message>?>(
+      stream: channel.state!.messagesStream,
+      initialData: channel.state!.messages,
       builder: (context, snapshot) {
-        final lastMessage = snapshot.data?.lastWhere((m) => m.shadowed != true && !m.isDeleted, orElse: () => null);
+        final lastMessage = snapshot.data
+            ?.lastWhereOrNull((m) => m.shadowed != true && !m.isDeleted);
         if (lastMessage == null) {
           return SizedBox();
         }
 
         var text = lastMessage.text;
-        if (lastMessage.attachments != null) {
-          final parts = <String>[
-            ...lastMessage.attachments.map((e) {
-              if (e.type == 'image') {
-                return '📷';
-              } else if (e.type == 'video') {
-                return '🎬';
-              } else if (e.type == 'giphy') {
-                return '[GIF]';
-              }
-              return e == lastMessage.attachments.last ? (e.title ?? 'File') : '${e.title ?? 'File'} , ';
-            }).where((e) => e != null),
-            lastMessage.text ?? '',
-          ];
+        final parts = <String>[
+          ...lastMessage.attachments.map((e) {
+            if (e.type == 'image') {
+              return '📷';
+            } else if (e.type == 'video') {
+              return '🎬';
+            } else if (e.type == 'giphy') {
+              return '[GIF]';
+            }
+            return e == lastMessage.attachments.last
+                ? (e.title ?? 'File')
+                : '${e.title ?? 'File'} , ';
+          }),
+          lastMessage.text ?? '',
+        ];
 
-          text = parts.join(' ');
-        }
+        text = parts.join(' ');
 
         return Text.rich(
           _getDisplayText(
             text,
             lastMessage.mentionedUsers,
             lastMessage.attachments,
-            StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
-                color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
-                fontStyle: (lastMessage.isSystem || lastMessage.isDeleted) ? FontStyle.italic : FontStyle.normal),
-            StreamChatTheme.of(context).channelPreviewTheme.subtitle.copyWith(
-                color: StreamChatTheme.of(context).channelPreviewTheme.subtitle.color,
-                fontStyle: (lastMessage.isSystem || lastMessage.isDeleted) ? FontStyle.italic : FontStyle.normal,
+            StreamChatTheme.of(context).channelPreviewTheme.subtitle!.copyWith(
+                color: StreamChatTheme.of(context)
+                    .channelPreviewTheme
+                    .subtitle!
+                    .color,
+                fontStyle: (lastMessage.isSystem || lastMessage.isDeleted)
+                    ? FontStyle.italic
+                    : FontStyle.normal),
+            StreamChatTheme.of(context).channelPreviewTheme.subtitle!.copyWith(
+                color: StreamChatTheme.of(context)
+                    .channelPreviewTheme
+                    .subtitle!
+                    .color,
+                fontStyle: (lastMessage.isSystem || lastMessage.isDeleted)
+                    ? FontStyle.italic
+                    : FontStyle.normal,
                 fontWeight: FontWeight.bold),
           ),
           maxLines: 1,
@@ -252,19 +280,25 @@ class MyChannelPreview extends StatelessWidget {
     );
   }
 
-  TextSpan _getDisplayText(String text, List<User> mentions, List<Attachment> attachments, TextStyle normalTextStyle,
+  TextSpan _getDisplayText(
+      String text,
+      List<User> mentions,
+      List<Attachment> attachments,
+      TextStyle normalTextStyle,
       TextStyle mentionsTextStyle) {
     var textList = text.split(' ');
     var resList = <TextSpan>[];
     for (var e in textList) {
-      if (mentions != null && mentions.isNotEmpty && mentions.any((element) => '@${element.name}' == e)) {
+      if (mentions.isNotEmpty &&
+          mentions.any((element) => '@${element.name}' == e)) {
         resList.add(TextSpan(
           text: '$e ',
           style: mentionsTextStyle,
         ));
-      } else if (attachments != null &&
-          attachments.isNotEmpty &&
-          attachments.where((e) => e.title != null).any((element) => element.title == e)) {
+      } else if (attachments.isNotEmpty &&
+          attachments
+              .where((e) => e.title != null)
+              .any((element) => element.title == e)) {
         resList.add(TextSpan(
           text: '$e ',
           style: normalTextStyle.copyWith(fontStyle: FontStyle.italic),
@@ -283,8 +317,8 @@ class MyChannelPreview extends StatelessWidget {
 
 class ChannelUnreadIndicator extends StatelessWidget {
   const ChannelUnreadIndicator({
-    Key key,
-    @required this.channel,
+    Key? key,
+    required this.channel,
   }) : super(key: key);
 
   final Channel channel;
@@ -292,8 +326,8 @@ class ChannelUnreadIndicator extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return StreamBuilder<int>(
-      stream: channel.state.unreadCountStream,
-      initialData: channel.state.unreadCount,
+      stream: channel.state!.unreadCountStream,
+      initialData: channel.state!.unreadCount,
       builder: (context, snapshot) {
         if (!snapshot.hasData || snapshot.data == 0) {
           return SizedBox();
@@ -301,7 +335,9 @@ class ChannelUnreadIndicator extends StatelessWidget {
 
         return Material(
           borderRadius: BorderRadius.circular(8),
-          color: StreamChatTheme.of(context).channelPreviewTheme.unreadCounterColor,
+          color: StreamChatTheme.of(context)
+              .channelPreviewTheme
+              .unreadCounterColor,
           child: Padding(
             padding: const EdgeInsets.only(
               left: 5.0,
@@ -311,7 +347,7 @@ class ChannelUnreadIndicator extends StatelessWidget {
             ),
             child: Center(
               child: Text(
-                '${snapshot.data > 99 ? '99+' : snapshot.data}',
+                '${snapshot.data! > 99 ? '99+' : snapshot.data}',
                 style: TextStyle(
                   fontSize: 11,
                   color: Colors.white,

packages/chatty/lib/ui/home/chat/chat_view.dart

@@ -23,11 +23,10 @@ class ChatView extends StatelessWidget {
       ),
       body: ChannelsBloc(
         child: ChannelListView(
-          filter: {
-            'members': {
-              '\$in': [StreamChat.of(context).user?.id],
-            }
-          },
+          filter: Filter.in_(
+            'members',
+            [StreamChat.of(context).user!.id],
+          ),
           sort: [SortOption('last_message_at')],
           channelPreviewBuilder: (context, channel) {
             return Container(
@@ -36,20 +35,22 @@ class ChatView extends StatelessWidget {
                 channel: channel,
                 heroTag: channel.id,
                 onImageTap: () {
-                  String name;
-                  String image;
+                  String? name;
+                  String? image;
                   final currentUser = StreamChat.of(context).client.state.user;
                   if (channel.isGroup) {
                     name = channel.extraData['name'];
                     image = channel.extraData['image'];
                   } else {
-                    final friend =
-                        channel.state.members.where((element) => element.userId != currentUser.id).first.user;
+                    final friend = channel.state!.members
+                        .where((element) => element.userId != currentUser!.id)
+                        .first
+                        .user!;
                     name = friend.name;
-                    image = friend.extraData['image'];
+                    image = friend.extraData['image'] as String?;
                   }
 
-                  return Navigator.of(context).push(
+                  Navigator.of(context).push(
                     PageRouteBuilder(
                         barrierColor: Colors.black45,
                         barrierDismissible: true,
@@ -108,15 +109,15 @@ class ChannelPage extends StatelessWidget {
 
 class ChatDetailView extends StatelessWidget {
   const ChatDetailView({
-    Key key,
+    Key? key,
     this.image,
     this.name,
     this.channelId,
   }) : super(key: key);
 
-  final String image;
-  final String name;
-  final String channelId;
+  final String? image;
+  final String? name;
+  final String? channelId;
 
   @override
   Widget build(BuildContext context) {
@@ -133,10 +134,10 @@ class ChatDetailView extends StatelessWidget {
               mainAxisSize: MainAxisSize.min,
               children: [
                 Hero(
-                  tag: channelId,
+                  tag: channelId!,
                   child: ClipOval(
                     child: Image.network(
-                      image,
+                      image!,
                       height: 180,
                       width: 180,
                       fit: BoxFit.cover,
@@ -144,7 +145,7 @@ class ChatDetailView extends StatelessWidget {
                   ),
                 ),
                 Text(
-                  name,
+                  name!,
                   style: TextStyle(
                     fontWeight: FontWeight.w700,
                     fontSize: 22,

packages/chatty/lib/ui/home/chat/selection/friends_selection_cubit.dart

@@ -13,21 +13,27 @@ class FriendsSelectionCubit extends Cubit<List<ChatUserState>> {
   FriendsSelectionCubit(this._streamApiRepository) : super([]);
   final StreamApiRepository _streamApiRepository;
 
-  List<ChatUserState> get selectedUsers => state.where((element) => element.selected).toList();
+  List<ChatUserState> get selectedUsers =>
+      state.where((element) => element.selected).toList();
 
   Future<void> init() async {
-    final chatUsers = (await _streamApiRepository.getChatUsers()).map((e) => ChatUserState(e)).toList();
+    final chatUsers = (await _streamApiRepository.getChatUsers())
+        .map((e) => ChatUserState(e))
+        .toList();
     emit(chatUsers);
   }
 
   void selectUser(ChatUserState chatUser) {
-    final index = state.indexWhere((element) => element.chatUser.id == chatUser.chatUser.id);
-    state[index] = ChatUserState(state[index].chatUser, selected: !chatUser.selected);
+    final index = state
+        .indexWhere((element) => element.chatUser.id == chatUser.chatUser.id);
+    state[index] =
+        ChatUserState(state[index].chatUser, selected: !chatUser.selected);
     emit(List<ChatUserState>.from(state));
   }
 
   Future<Channel> createFriendChannel(ChatUserState chatUserState) async {
-    return await _streamApiRepository.createSimpleChat(chatUserState.chatUser.id);
+    return await _streamApiRepository
+        .createSimpleChat(chatUserState.chatUser.id);
   }
 }
 

packages/chatty/lib/ui/home/chat/selection/friends_selection_view.dart

@@ -7,8 +7,11 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 class FriendsSelectionView extends StatelessWidget {
-  void _createFriendChannel(BuildContext context, ChatUserState chatUserState) async {
-    final channel = await context.read<FriendsSelectionCubit>().createFriendChannel(chatUserState);
+  void _createFriendChannel(
+      BuildContext context, ChatUserState chatUserState) async {
+    final channel = await context
+        .read<FriendsSelectionCubit>()
+        .createFriendChannel(chatUserState);
     pushAndReplaceToPage(
       context,
       Scaffold(
@@ -26,19 +29,23 @@ class FriendsSelectionView extends StatelessWidget {
     final accentColor = Theme.of(context).accentColor;
     return MultiBlocProvider(
       providers: [
-        BlocProvider(create: (context) => FriendsSelectionCubit(context.read())..init()),
+        BlocProvider(
+            create: (context) => FriendsSelectionCubit(context.read())..init()),
         BlocProvider(create: (_) => FriendsGroupCubit()),
       ],
       child: BlocBuilder<FriendsGroupCubit, bool>(builder: (context, isGroup) {
-        return BlocBuilder<FriendsSelectionCubit, List<ChatUserState>>(builder: (context, snapshot) {
-          final selectedUsers = context.read<FriendsSelectionCubit>().selectedUsers;
+        return BlocBuilder<FriendsSelectionCubit, List<ChatUserState>>(
+            builder: (context, snapshot) {
+          final selectedUsers =
+              context.read<FriendsSelectionCubit>().selectedUsers;
 
           return Scaffold(
             floatingActionButton: isGroup && selectedUsers.isNotEmpty
                 ? FloatingActionButton(
                     child: Icon(Icons.arrow_right_alt_rounded),
                     onPressed: () {
-                      pushAndReplaceToPage(context, GroupSelectionView(selectedUsers));
+                      pushAndReplaceToPage(
+                          context, GroupSelectionView(selectedUsers));
                     })
                 : null,
             backgroundColor: Theme.of(context).canvasColor,
@@ -91,12 +98,14 @@ class FriendsSelectionView extends StatelessWidget {
                         backgroundColor: accentColor,
                         child: Icon(Icons.group_outlined),
                       ),
-                      title: Text('Create group', style: TextStyle(fontWeight: FontWeight.w700)),
+                      title: Text('Create group',
+                          style: TextStyle(fontWeight: FontWeight.w700)),
                       subtitle: Text('Talk with 2 or more contacts'),
                     )
                   else if (isGroup && selectedUsers.isEmpty)
                     Padding(
-                      padding: const EdgeInsets.only(top: 15.0, left: 20.0, bottom: 20),
+                      padding: const EdgeInsets.only(
+                          top: 15.0, left: 20.0, bottom: 20),
                       child: Column(
                         mainAxisSize: MainAxisSize.min,
                         crossAxisAlignment: CrossAxisAlignment.start,
@@ -123,7 +132,8 @@ class FriendsSelectionView extends StatelessWidget {
                             itemBuilder: (context, index) {
                               final chatUserState = selectedUsers[index];
                               return Padding(
-                                padding: const EdgeInsets.symmetric(horizontal: 13.0),
+                                padding: const EdgeInsets.symmetric(
+                                    horizontal: 13.0),
                                 child: Stack(
                                   clipBehavior: Clip.none,
                                   children: [
@@ -132,20 +142,24 @@ class FriendsSelectionView extends StatelessWidget {
                                       children: [
                                         CircleAvatar(
                                           radius: 30,
-                                          backgroundImage: NetworkImage(chatUserState.chatUser.image),
+                                          backgroundImage: NetworkImage(
+                                              chatUserState.chatUser.image!),
                                         ),
-                                        Text(chatUserState.chatUser.name),
+                                        Text(chatUserState.chatUser.name!),
                                       ],
                                     ),
                                     Positioned(
                                       bottom: 40,
                                       right: -4,
                                       child: InkWell(
-                                        onTap: () => context.read<FriendsSelectionCubit>().selectUser(chatUserState),
+                                        onTap: () => context
+                                            .read<FriendsSelectionCubit>()
+                                            .selectUser(chatUserState),
                                         child: CircleAvatar(
                                           radius: 9,
                                           backgroundColor: accentColor,
-                                          child: Icon(Icons.close_rounded, size: 12),
+                                          child: Icon(Icons.close_rounded,
+                                              size: 12),
                                         ),
                                       ),
                                     ),
@@ -163,15 +177,18 @@ class FriendsSelectionView extends StatelessWidget {
                             _createFriendChannel(context, chatUserState);
                           },
                           leading: CircleAvatar(
-                            backgroundImage: NetworkImage(chatUserState.chatUser.image),
+                            backgroundImage:
+                                NetworkImage(chatUserState.chatUser.image!),
                           ),
-                          title: Text(chatUserState.chatUser.name),
+                          title: Text(chatUserState.chatUser.name!),
                           trailing: isGroup
                               ? Checkbox(
                                   value: chatUserState.selected,
                                   onChanged: (val) {
                                     print('select user for group');
-                                    context.read<FriendsSelectionCubit>().selectUser(chatUserState);
+                                    context
+                                        .read<FriendsSelectionCubit>()
+                                        .selectUser(chatUserState);
                                   },
                                 )
                               : null,

packages/chatty/lib/ui/home/chat/selection/group_selection_cubit.dart

@@ -13,8 +13,8 @@ class GroupSelectionState {
     this.channel,
     this.isLoading = false,
   });
-  final File file;
-  final Channel channel;
+  final File? file;
+  final Channel? channel;
   final bool isLoading;
 }
 

packages/chatty/lib/ui/home/chat/selection/group_selection_view.dart

@@ -21,13 +21,14 @@ class GroupSelectionView extends StatelessWidget {
         context.read(),
         context.read(),
       ),
-      child: BlocConsumer<GroupSelectionCubit, GroupSelectionState>(listener: (context, snapshot) {
+      child: BlocConsumer<GroupSelectionCubit, GroupSelectionState>(
+          listener: (context, snapshot) {
         if (snapshot.channel != null) {
           pushAndReplaceToPage(
             context,
             Scaffold(
               body: StreamChannel(
-                channel: snapshot.channel,
+                channel: snapshot.channel!,
                 child: ChannelPage(),
               ),
             ),
@@ -59,9 +60,9 @@ class GroupSelectionView extends StatelessWidget {
               children: [
                 AvatarImageView(
                   onTap: context.read<GroupSelectionCubit>().pickImage,
-                  child: snapshot?.file != null
+                  child: snapshot.file != null
                       ? Image.file(
-                          snapshot?.file,
+                          snapshot.file!,
                           fit: BoxFit.cover,
                         )
                       : Icon(
@@ -76,9 +77,12 @@ class GroupSelectionView extends StatelessWidget {
                     vertical: 20,
                   ),
                   child: TextField(
-                    controller: context.read<GroupSelectionCubit>().nameTextController,
+                    controller:
+                        context.read<GroupSelectionCubit>().nameTextController,
                     decoration: InputDecoration(
-                      fillColor: Theme.of(context).bottomNavigationBarTheme.backgroundColor,
+                      fillColor: Theme.of(context)
+                          .bottomNavigationBarTheme
+                          .backgroundColor,
                       hintText: 'Name of the group',
                       hintStyle: TextStyle(
                         fontSize: 13,
@@ -99,9 +103,10 @@ class GroupSelectionView extends StatelessWidget {
                         children: [
                           CircleAvatar(
                             radius: 30,
-                            backgroundImage: NetworkImage(chatUserState.chatUser.image),
+                            backgroundImage:
+                                NetworkImage(chatUserState.chatUser.image!),
                           ),
-                          Text(chatUserState.chatUser.name),
+                          Text(chatUserState.chatUser.name!),
                         ],
                       ),
                     );

packages/chatty/lib/ui/home/home_view.dart

@@ -36,7 +36,7 @@ class HomeView extends StatelessWidget {
 
 class HomeNavigationBar extends StatelessWidget {
   const HomeNavigationBar({
-    Key key,
+    Key? key,
   }) : super(key: key);
 
   @override
@@ -61,7 +61,9 @@ class HomeNavigationBar extends StatelessWidget {
                 child: Container(
                   decoration: BoxDecoration(
                     borderRadius: BorderRadius.circular(25),
-                    color: Theme.of(context).bottomNavigationBarTheme.backgroundColor,
+                    color: Theme.of(context)
+                        .bottomNavigationBarTheme
+                        .backgroundColor,
                   ),
                   child: Row(
                     mainAxisAlignment: MainAxisAlignment.spaceAround,
@@ -108,22 +110,24 @@ class HomeNavigationBar extends StatelessWidget {
 
 class _HomeNavItem extends StatelessWidget {
   const _HomeNavItem({
-    Key key,
+    Key? key,
     this.iconData,
     this.text,
     this.onTap,
     this.selected = false,
   }) : super(key: key);
 
-  final IconData iconData;
-  final String text;
-  final VoidCallback onTap;
+  final IconData? iconData;
+  final String? text;
+  final VoidCallback? onTap;
   final bool selected;
 
   @override
   Widget build(BuildContext context) {
-    final selectedColor = Theme.of(context).bottomNavigationBarTheme.selectedItemColor;
-    final unselectedColor = Theme.of(context).bottomNavigationBarTheme.unselectedItemColor;
+    final selectedColor =
+        Theme.of(context).bottomNavigationBarTheme.selectedItemColor;
+    final unselectedColor =
+        Theme.of(context).bottomNavigationBarTheme.unselectedItemColor;
     final color = selected ? selectedColor : unselectedColor;
     return GestureDetector(
       onTap: onTap,
@@ -131,7 +135,7 @@ class _HomeNavItem extends StatelessWidget {
         mainAxisSize: MainAxisSize.min,
         children: [
           Icon(iconData, color: color),
-          Text(text, style: TextStyle(color: color)),
+          Text(text!, style: TextStyle(color: color)),
         ],
       ),
     );

packages/chatty/lib/ui/home/settings/settings_view.dart

@@ -10,13 +10,14 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 class SettingsView extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    final user = StreamChat.of(context).client.state.user;
-    final image = user?.extraData['image'];
+    final user = StreamChat.of(context).client.state.user!;
+    final image = user.extraData['image'];
     final textColor = Theme.of(context).appBarTheme.color;
     return MultiBlocProvider(
       providers: [
         BlocProvider(
-          create: (_) => SettingsSwitchCubit(context.read<AppThemeCubit>().isDark),
+          create: (_) =>
+              SettingsSwitchCubit(context.read<AppThemeCubit>().isDark),
         ),
         BlocProvider(
           create: (_) => SettingsLogoutCubit(context.read()),
@@ -47,7 +48,7 @@ class SettingsView extends StatelessWidget {
                   onTap: () => null,
                   child: image != null
                       ? Image.network(
-                          image,
+                          image as String,
                           fit: BoxFit.cover,
                         )
                       : Icon(
@@ -75,11 +76,14 @@ class SettingsView extends StatelessWidget {
                       ),
                     ),
                     Spacer(),
-                    BlocBuilder<SettingsSwitchCubit, bool>(builder: (context, snapshot) {
+                    BlocBuilder<SettingsSwitchCubit, bool>(
+                        builder: (context, snapshot) {
                       return Switch(
                         value: snapshot,
                         onChanged: (val) {
-                          context.read<SettingsSwitchCubit>().onChangeDarkMode(val);
+                          context
+                              .read<SettingsSwitchCubit>()
+                              .onChangeDarkMode(val);
                           context.read<AppThemeCubit>().updateTheme(val);
                         },
                       );

packages/chatty/lib/ui/profile_verify/profile_verify_cubit.dart

@@ -11,7 +11,7 @@ class ProfileState {
     this.success = false,
     this.loading = false,
   });
-  final File file;
+  final File? file;
   final bool success;
   final bool loading;
 }

packages/chatty/lib/ui/profile_verify/profile_verify_view.dart

@@ -13,7 +13,8 @@ class ProfileVerifyView extends StatelessWidget {
   Widget build(BuildContext context) {
     return BlocProvider(
       create: (context) => ProfileVerifyCubit(context.read(), context.read()),
-      child: BlocConsumer<ProfileVerifyCubit, ProfileState>(listener: (context, snapshot) {
+      child: BlocConsumer<ProfileVerifyCubit, ProfileState>(
+          listener: (context, snapshot) {
         if (snapshot.success) {
           pushAndReplaceToPage(context, HomeView());
         }
@@ -38,7 +39,7 @@ class ProfileVerifyView extends StatelessWidget {
                     onTap: context.read<ProfileVerifyCubit>().pickImage,
                     child: snapshot.file != null
                         ? Image.file(
-                            snapshot.file,
+                            snapshot.file!,
                             fit: BoxFit.cover,
                           )
                         : Icon(
@@ -59,9 +60,12 @@ class ProfileVerifyView extends StatelessWidget {
                       vertical: 20,
                     ),
                     child: TextField(
-                      controller: context.read<ProfileVerifyCubit>().nameController,
+                      controller:
+                          context.read<ProfileVerifyCubit>().nameController,
                       decoration: InputDecoration(
-                        fillColor: Theme.of(context).bottomNavigationBarTheme.backgroundColor,
+                        fillColor: Theme.of(context)
+                            .bottomNavigationBarTheme
+                            .backgroundColor,
                         hintText: 'Or just how people now you',
                         hintStyle: TextStyle(
                           fontSize: 13,

packages/chatty/lib/ui/sign_in/sign_in_cubit.dart

@@ -20,10 +20,8 @@ class SignInCubit extends Cubit<SignInState> {
         emit(SignInState.existing_user);
       }
     } catch (ex) {
-      final result = await _loginUseCase.signIn();
-      if (result != null) {
-        emit(SignInState.none);
-      }
+      _loginUseCase.signIn();
+      emit(SignInState.none);
     }
   }
 }

packages/chatty/lib/ui/sign_in/sign_in_view.dart

@@ -11,7 +11,8 @@ class SignInView extends StatelessWidget {
   Widget build(BuildContext context) {
     return BlocProvider(
       create: (context) => SignInCubit(context.read()),
-      child: BlocConsumer<SignInCubit, SignInState>(listener: (context, snapshot) {
+      child:
+          BlocConsumer<SignInCubit, SignInState>(listener: (context, snapshot) {
         if (snapshot == SignInState.none) {
           pushAndReplaceToPage(context, ProfileVerifyView());
         } else {
@@ -59,7 +60,9 @@ class SignInView extends StatelessWidget {
                     shape: RoundedRectangleBorder(
                       borderRadius: BorderRadius.circular(10),
                     ),
-                    color: Theme.of(context).bottomNavigationBarTheme.backgroundColor,
+                    color: Theme.of(context)
+                        .bottomNavigationBarTheme
+                        .backgroundColor,
                     child: InkWell(
                       onTap: () {
                         context.read<SignInCubit>().signIn();

packages/chatty/lib/ui/themes.dart

@@ -44,7 +44,7 @@ class Themes {
         selectedItemColor: primaryColor,
         unselectedItemColor: Colors.grey[300],
       ),
-      textSelectionColor: Colors.white,
+      textSelectionTheme: TextSelectionThemeData(selectionColor: Colors.white),
       // switch active color
       toggleableActiveColor: primaryColor,
       canvasColor: backgroundDarkColor,

packages/chatty/pubspec.yaml

@@ -4,22 +4,23 @@ publish_to: 'none'
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
   flutter:
     sdk: flutter
 
-  flutter_bloc: 6.1.2
-  stream_chat_flutter: 1.3.0-beta
-  uuid: 2.2.2
+  flutter_bloc: ^7.0.0
+  stream_chat_flutter: ^2.0.0-nullsafety.3
+  uuid: ^3.0.4
 
-  firebase_core: 0.7.0
-  google_sign_in: 4.5.9
-  firebase_auth: 0.20.0+1
-  firebase_storage: 7.0.0
-  shared_preferences: 0.5.12+4
+  firebase_core: ^1.2.0
+  google_sign_in: ^5.0.3
+  firebase_auth: ^1.2.0
+  firebase_storage: ^8.1.0
+  shared_preferences: ^2.0.5
   http: any
+  collection: ^1.15.0-nullsafety.4
 
 dev_dependencies:
   flutter_test:

packages/imessage/lib/channel_image.dart

@@ -4,7 +4,7 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart' show Channel;
 import 'package:imessage/utils.dart';
 
 class ChannelImage extends StatelessWidget {
-  const ChannelImage({Key key, @required this.channel, @required this.size})
+  const ChannelImage({Key? key, required this.channel, required this.size})
       : super(key: key);
 
   final Channel channel;
@@ -14,7 +14,7 @@ class ChannelImage extends StatelessWidget {
   Widget build(BuildContext context) {
     final avatarUrl = channel.extraData.containsKey('image') &&
             (channel.extraData['image'] as String).isNotEmpty
-        ? channel.extraData['image'] as String
+        ? channel.extraData['image'] as String?
         : 'https://4.bp.blogspot.com/-Jx21kNqFSTU/UXemtqPhZCI/AAAAAAAAh74/BMGSzpU6F48/s1600/funny-cat-pictures-047-001.jpg';
 
     return CupertinoCircleAvatar(

packages/imessage/lib/channel_list_view.dart

@@ -6,7 +6,7 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart'
     show Channel, StreamChannel;
 
 class ChannelListView extends StatelessWidget {
-  const ChannelListView({Key key, @required this.channels}) : super(key: key);
+  const ChannelListView({Key? key, required this.channels}) : super(key: key);
   final List<Channel> channels;
   @override
   Widget build(BuildContext context) {
@@ -36,10 +36,10 @@ class ChannelListView extends StatelessWidget {
                       child,
                     ) =>
                         SharedAxisTransition(
-                      child: child,
                       animation: animation,
                       secondaryAnimation: secondaryAnimation,
                       transitionType: SharedAxisTransitionType.horizontal,
+                      child: child,
                     ),
                   ),
                 );

packages/imessage/lib/channel_name_text.dart

@@ -3,8 +3,8 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart' show Channel;
 
 class ChannelNameText extends StatelessWidget {
   const ChannelNameText({
-    Key key,
-    @required this.channel,
+    Key? key,
+    required this.channel,
     this.size = 17,
   }) : super(key: key);
 
@@ -14,7 +14,7 @@ class ChannelNameText extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Text(
-      channel.extraData['name'] as String ?? 'No name',
+      channel.extraData['name'] as String? ?? 'No name',
       style: TextStyle(
         fontSize: size,
         fontWeight: FontWeight.bold,

packages/imessage/lib/channel_page_appbar.dart

@@ -2,7 +2,7 @@ import 'package:flutter/cupertino.dart';
 
 class ChannelPageAppBar extends StatelessWidget {
   const ChannelPageAppBar({
-    Key key,
+    Key? key,
   }) : super(key: key);
 
   @override

packages/imessage/lib/channel_preview.dart

@@ -11,19 +11,20 @@ class ChannelPreview extends StatelessWidget {
   final Channel channel;
 
   const ChannelPreview({
-    Key key,
-    @required this.onTap,
-    @required this.channel,
+    Key? key,
+    required this.onTap,
+    required this.channel,
   }) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
-    final lastMessage =
-        channel.state.messages.isNotEmpty ? channel.state.messages.last : null;
+    final lastMessage = channel.state!.messages.isNotEmpty
+        ? channel.state!.messages.last
+        : null;
 
     final prefix = lastMessage?.attachments != null
         ? lastMessage?.attachments //TODO: ugly
-            ?.map((e) {
+            .map((e) {
               if (e.type == 'image') {
                 return '📷 ';
               } else if (e.type == 'video') {
@@ -31,8 +32,8 @@ class ChannelPreview extends StatelessWidget {
               }
               return null;
             })
-            ?.where((e) => e != null)
-            ?.join(' ')
+            .where((e) => e != null)
+            .join(' ')
         : '';
     return GestureDetector(
       onTap: onTap,
@@ -76,9 +77,9 @@ class ChannelPreview extends StatelessWidget {
                           child: Row(
                             children: [
                               Text(
-                                isSameWeek(channel.lastMessageAt)
-                                    ? formatDateSameWeek(channel.lastMessageAt)
-                                    : formatDate(channel.lastMessageAt),
+                                isSameWeek(channel.lastMessageAt!)
+                                    ? formatDateSameWeek(channel.lastMessageAt!)
+                                    : formatDate(channel.lastMessageAt!),
                                 style: TextStyle(
                                   fontSize: 15,
                                   color: CupertinoColors.systemGrey,

packages/imessage/lib/cutom_painter.dart

@@ -2,10 +2,10 @@ import 'package:flutter/cupertino.dart';
 
 class ChatBubble extends CustomPainter {
   final Color color;
-  final Alignment alignment;
+  final Alignment? alignment;
 
   ChatBubble({
-    @required this.color,
+    required this.color,
     this.alignment,
   });
 

packages/imessage/lib/main.dart

@@ -1,18 +1,7 @@
 import 'package:flutter/cupertino.dart';
 import 'package:intl/date_symbol_data_local.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart'
-    show
-        Channel,
-        ChannelListController,
-        ChannelListCore,
-        ChannelsBloc,
-        LazyLoadScrollView,
-        Level,
-        PaginationParams,
-        SortOption,
-        StreamChatClient,
-        StreamChatCore,
-        User;
+    hide ChannelListView;
 
 import 'package:imessage/channel_list_view.dart';
 
@@ -37,7 +26,7 @@ Future<void> main() async {
 
 class IMessage extends StatelessWidget {
   final StreamChatClient client;
-  IMessage({@required this.client});
+  IMessage({required this.client});
   @override
   Widget build(BuildContext context) {
     initializeDateFormatting('en_US', null);
@@ -52,70 +41,69 @@ class IMessage extends StatelessWidget {
 
 class ChatLoader extends StatelessWidget {
   ChatLoader({
-    Key key,
+    Key? key,
   }) : super(key: key);
 
   final channelListController = ChannelListController();
 
   @override
   Widget build(BuildContext context) {
-    final user = StreamChatCore.of(context).user;
+    final user = StreamChatCore.of(context).user!;
     return CupertinoPageScaffold(
-        child: ChannelsBloc(
-            child: ChannelListCore(
-                channelListController: channelListController,
-                filter: {
-                  'members': {
-                    r'$in': [user.id],
-                  },
-                  'type': {
-                    r'$eq': 'messaging',
-                  },
-                },
-                sort: [SortOption('last_message_at')],
-                pagination: PaginationParams(
-                  limit: 20,
-                ),
-                emptyBuilder: (BuildContext context) {
-                  return Center(
-                    child: Text('Looks like you are not in any channels'),
-                  );
-                },
-                loadingBuilder: (BuildContext context) {
-                  return Center(
-                    child: SizedBox(
-                      height: 100.0,
-                      width: 100.0,
-                      child: CupertinoActivityIndicator(),
-                    ),
-                  );
-                },
-                errorBuilder: (BuildContext context, dynamic error) {
-                  return Center(
-                    child: Text(
-                        'Oh no, something went wrong. Please check your config.'),
-                  );
-                },
-                listBuilder: (
-                  BuildContext context,
-                  List<Channel> channels,
-                ) =>
-                    LazyLoadScrollView(
-                      onEndOfPage: () async {
-                        channelListController.paginateData();
-                      },
-                      child: CustomScrollView(
-                        slivers: [
-                          CupertinoSliverRefreshControl(onRefresh: () async {
-                            channelListController.loadData();
-                          }),
-                          ChannelPageAppBar(),
-                          SliverPadding(
-                            sliver: ChannelListView(channels: channels),
-                            padding: const EdgeInsets.only(top: 16),
-                          )
-                        ],
-                      ),
-                    ))));
+      child: ChannelsBloc(
+        child: ChannelListCore(
+          channelListController: channelListController,
+          filter: Filter.and([
+            Filter.in_('members', [user.id]),
+            Filter.equal('type', 'messaging'),
+          ]),
+          sort: [SortOption('last_message_at')],
+          pagination: PaginationParams(
+            limit: 20,
+          ),
+          emptyBuilder: (BuildContext context) {
+            return Center(
+              child: Text('Looks like you are not in any channels'),
+            );
+          },
+          loadingBuilder: (BuildContext context) {
+            return Center(
+              child: SizedBox(
+                height: 100.0,
+                width: 100.0,
+                child: CupertinoActivityIndicator(),
+              ),
+            );
+          },
+          errorBuilder: (BuildContext context, dynamic error) {
+            return Center(
+              child: Text(
+                  'Oh no, something went wrong. Please check your config.'),
+            );
+          },
+          listBuilder: (
+            BuildContext context,
+            List<Channel> channels,
+          ) =>
+              LazyLoadScrollView(
+            onEndOfPage: () async {
+              return channelListController.paginateData!();
+            },
+            child: CustomScrollView(
+              slivers: [
+                CupertinoSliverRefreshControl(onRefresh: () async {
+                  return channelListController.loadData!();
+                }),
+                ChannelPageAppBar(),
+                SliverPadding(
+                  sliver: ChannelListView(channels: channels),
+                  padding: const EdgeInsets.only(top: 16),
+                )
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
   }
 }

packages/imessage/lib/message_header.dart

@@ -4,7 +4,7 @@ import 'package:imessage/utils.dart';
 
 class MessageHeader extends StatelessWidget {
   final String rawTimeStamp;
-  const MessageHeader({Key key, @required this.rawTimeStamp}) : super(key: key);
+  const MessageHeader({Key? key, required this.rawTimeStamp}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

packages/imessage/lib/message_input.dart

@@ -3,11 +3,11 @@ import 'dart:io';
 import 'package:flutter/cupertino.dart';
 import 'package:image_picker/image_picker.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart'
-    show Attachment, AttachmentFile, Message, MultipartFile, StreamChannel;
+    show Attachment, AttachmentFile, Message, StreamChannel;
 
 class MessageInput extends StatefulWidget {
   const MessageInput({
-    Key key,
+    Key? key,
   }) : super(key: key);
 
   @override
@@ -16,7 +16,6 @@ class MessageInput extends StatefulWidget {
 
 class _MessageInputState extends State<MessageInput> {
   final textController = TextEditingController();
-  File _image;
   final picker = ImagePicker();
 
   @override
@@ -39,16 +38,25 @@ class _MessageInputState extends State<MessageInput> {
             GestureDetector(
               onTap: () async {
                 final pickedFile =
-                    await picker.getImage(source: ImageSource.gallery);
+                    await (picker.getImage(source: ImageSource.gallery));
+                if (pickedFile == null) {
+                  return;
+                }
                 final bytes = await File(pickedFile.path).readAsBytes();
                 final channel = StreamChannel.of(context).channel;
-                final message =
-                    Message(text: textController.value.text, attachments: [
-                  Attachment(
-                    type: 'image',
-                    file: AttachmentFile(bytes: bytes, path: pickedFile.path),
-                  ),
-                ]);
+                final message = Message(
+                  text: textController.value.text,
+                  attachments: [
+                    Attachment(
+                      type: 'image',
+                      file: AttachmentFile(
+                        bytes: bytes,
+                        path: pickedFile.path,
+                        size: bytes.length,
+                      ),
+                    ),
+                  ],
+                );
                 await channel.sendMessage(message);
               },
               child: Padding(
@@ -68,10 +76,11 @@ class _MessageInputState extends State<MessageInput> {
                 },
                 placeholder: 'Text Message',
                 prefix: Padding(
-                    padding: const EdgeInsets.all(8.0),
-                    child: Text(
-                        "") //trick to add padding around  placeholder iMessage text
-                    ),
+                  padding: const EdgeInsets.all(8.0),
+                  child: Text(
+                    '',
+                  ), //trick to add padding around  placeholder iMessage text
+                ),
                 suffix: GestureDetector(
                   onTap: () async {
                     if (textController.value.text.isNotEmpty) {

packages/imessage/lib/message_list_view.dart

@@ -7,12 +7,12 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart'
     show Message, StreamChatCore;
 
 class MessageListView extends StatelessWidget {
-  const MessageListView({Key key, this.messages}) : super(key: key);
-  final List<Message> messages;
+  const MessageListView({Key? key, this.messages}) : super(key: key);
+  final List<Message>? messages;
 
   @override
   Widget build(BuildContext context) {
-    final entries = groupBy(messages,
+    final entries = groupBy(messages!,
             (Message message) => message.createdAt.toString().substring(0, 10))
         .entries
         .toList();
@@ -64,8 +64,8 @@ class MessageListView extends StatelessWidget {
   }
 
   bool isReceived(Message message, BuildContext context) {
-    final currentUserId = StreamChatCore.of(context).user.id;
-    return message.user.id == currentUserId;
+    final currentUserId = StreamChatCore.of(context).user!.id;
+    return message.user!.id == currentUserId;
   }
 
   bool isSameDay(Message message) =>

packages/imessage/lib/message_page.dart

@@ -53,7 +53,7 @@ class MessagePage extends StatelessWidget {
               },
               messageListBuilder: (context, messages) => LazyLoadScrollView(
                     onStartOfPage: () async {
-                      messageListController.paginateData();
+                      await messageListController.paginateData!();
                     },
                     child: MessageListView(
                       messages: messages,

packages/imessage/lib/message_widget.dart

@@ -1,8 +1,7 @@
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:imessage/cutom_painter.dart';
-import 'package:stream_chat_flutter/stream_chat_flutter.dart'
-    show Message, AttachmentUploadStateBuilder;
+import 'package:stream_chat_flutter/stream_chat_flutter.dart' show Message;
 
 class MessageWidget extends StatelessWidget {
   final Alignment alignment;
@@ -11,16 +10,16 @@ class MessageWidget extends StatelessWidget {
   final Color messageColor;
 
   const MessageWidget(
-      {Key key,
-      @required this.alignment,
-      @required this.message,
-      @required this.color,
-      @required this.messageColor})
+      {Key? key,
+      required this.alignment,
+      required this.message,
+      required this.color,
+      required this.messageColor})
       : super(key: key);
 
   @override
   Widget build(BuildContext context) {
-    if (message.attachments?.isNotEmpty == true &&
+    if (message.attachments.isNotEmpty == true &&
         message.attachments.first.type == 'image') {
       return MessageImage(
           color: color, message: message, messageColor: messageColor);
@@ -36,10 +35,10 @@ class MessageWidget extends StatelessWidget {
 
 class MessageImage extends StatelessWidget {
   const MessageImage({
-    Key key,
-    @required this.color,
-    @required this.message,
-    @required this.messageColor,
+    Key? key,
+    required this.color,
+    required this.message,
+    required this.messageColor,
   }) : super(key: key);
 
   final Color color;
@@ -61,23 +60,23 @@ class MessageImage extends StatelessWidget {
                   children: [
                     if (message.attachments.first.file != null)
                       Image.memory(
-                        message.attachments.first.file.bytes,
+                        message.attachments.first.file!.bytes!,
                         fit: BoxFit.cover,
                       )
                     else
                       CachedNetworkImage(
                         imageUrl: message.attachments.first.thumbUrl ??
                             message.attachments.first.imageUrl ??
-                            message.attachments.first.assetUrl,
+                            message.attachments.first.assetUrl!,
                       ),
-                    if (message.attachments.first?.title != null)
+                    if (message.attachments.first.title != null)
                       Padding(
                         padding: const EdgeInsets.all(8.0),
-                        child: Text(message.attachments.first.title,
+                        child: Text(message.attachments.first.title!,
                             style: TextStyle(color: messageColor)),
                       ),
                     message.attachments.first.pretext != null
-                        ? Text(message.attachments.first.pretext)
+                        ? Text(message.attachments.first.pretext!)
                         : Container()
                   ],
                 ),
@@ -92,7 +91,7 @@ class MessageImage extends StatelessWidget {
         child: Container(
             color: color,
             child: CachedNetworkImage(
-              imageUrl: message.attachments.first.thumbUrl,
+              imageUrl: message.attachments.first.thumbUrl!,
             )),
       );
     }
@@ -101,11 +100,11 @@ class MessageImage extends StatelessWidget {
 
 class MessageText extends StatelessWidget {
   const MessageText({
-    Key key,
-    @required this.alignment,
-    @required this.color,
-    @required this.message,
-    @required this.messageColor,
+    Key? key,
+    required this.alignment,
+    required this.color,
+    required this.message,
+    required this.messageColor,
   }) : super(key: key);
 
   final Alignment alignment;
@@ -133,7 +132,7 @@ class MessageText extends StatelessWidget {
                   child: Padding(
                     padding: const EdgeInsets.all(4.0),
                     child: Text(
-                      message.text,
+                      message.text!,
                       style: TextStyle(color: messageColor),
                     ),
                   ),

packages/imessage/lib/utils.dart

@@ -26,44 +26,45 @@ bool isSameWeek(DateTime timestamp) =>
     DateTime.now().difference(timestamp).inDays < 7;
 
 class CupertinoCircleAvatar extends StatelessWidget {
-  final String url;
-  final double size;
-  const CupertinoCircleAvatar({Key key, this.url, this.size}) : super(key: key);
+  final String? url;
+  final double? size;
+  const CupertinoCircleAvatar({Key? key, this.url, this.size})
+      : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return ClipRRect(
-      borderRadius: BorderRadius.circular(size / 2),
+      borderRadius: BorderRadius.circular(size! / 2),
       child: CachedNetworkImage(
-          imageUrl: url,
+          imageUrl: url!,
           height: size,
           width: size,
           fit: BoxFit.cover,
           errorWidget: (context, url, error) {
             //TODO: this crash the app when getting 404 and in debug mode, see :https://github.com/Baseflow/flutter_cached_network_image/issues/504
             return CachedNetworkImage(
-                imageUrl:
-                    "https://4.bp.blogspot.com/-Jx21kNqFSTU/UXemtqPhZCI/AAAAAAAAh74/BMGSzpU6F48/s1600/funny-cat-pictures-047-001.jpg");
+              imageUrl:
+                  'https://4.bp.blogspot.com/-Jx21kNqFSTU/UXemtqPhZCI/AAAAAAAAh74/BMGSzpU6F48/s1600/funny-cat-pictures-047-001.jp',
+            );
           }),
     );
   }
 }
 
-
 class Divider extends StatelessWidget {
   const Divider({
-    Key key,
+    Key? key,
   }) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return Expanded(
       child: Align(
+        alignment: Alignment.bottomCenter,
         child: Container(
           height: 1,
           color: CupertinoColors.systemGrey5,
         ),
-        alignment: Alignment.bottomCenter,
       ),
     );
   }

packages/imessage/pubspec.yaml

@@ -18,16 +18,16 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.7.0 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
   flutter:
     sdk: flutter
-  intl: ^0.16.1
-  stream_chat_flutter: ^1.3.0-beta
-  animations: ^1.0.0+5
-  collection: ^1.14.13
-  cached_network_image: ^2.0.0-rc
+  intl: ^0.17.0
+  stream_chat_flutter: ^2.0.0-nullsafety.3
+  animations: ^2.0.0
+  collection: ^1.15.0
+  cached_network_image: ^3.0.0
 
 
   # The following adds the Cupertino Icons font to your application.

packages/stream_chat_v1/android/gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip

packages/stream_chat_v1/ios/Gemfile.lock

@@ -2,21 +2,21 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (3.0.3)
-    addressable (2.7.0)
+    addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     artifactory (3.0.15)
     atomos (0.1.3)
     aws-eventstream (1.1.1)
-    aws-partitions (1.437.0)
-    aws-sdk-core (3.113.1)
+    aws-partitions (1.473.0)
+    aws-sdk-core (3.115.0)
       aws-eventstream (~> 1, >= 1.0.2)
       aws-partitions (~> 1, >= 1.239.0)
       aws-sigv4 (~> 1.1)
       jmespath (~> 1.0)
-    aws-sdk-kms (1.43.0)
+    aws-sdk-kms (1.44.0)
       aws-sdk-core (~> 3, >= 3.112.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.93.0)
+    aws-sdk-s3 (1.96.1)
       aws-sdk-core (~> 3, >= 3.112.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.1)
@@ -26,29 +26,40 @@ GEM
     claide (1.0.3)
     colored (1.2)
     colored2 (3.1.2)
-    commander-fastlane (4.4.6)
-      highline (~> 1.7.2)
+    commander (4.6.0)
+      highline (~> 2.0.0)
     declarative (0.0.20)
-    declarative-option (0.1.0)
     digest-crc (0.6.3)
       rake (>= 12.0.0, < 14.0.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     dotenv (2.7.6)
     emoji_regex (3.2.2)
-    excon (0.79.0)
-    faraday (1.3.0)
+    excon (0.83.0)
+    faraday (1.5.0)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0.1)
       faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.1)
+      faraday-patron (~> 1.0)
       multipart-post (>= 1.2, < 3)
-      ruby2_keywords
+      ruby2_keywords (>= 0.0.4)
     faraday-cookie_jar (0.0.7)
       faraday (>= 0.8.0)
       http-cookie (~> 1.0.0)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.0)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
     faraday-net_http (1.0.1)
+    faraday-net_http_persistent (1.1.0)
+    faraday-patron (1.0.0)
     faraday_middleware (1.0.0)
       faraday (~> 1.0)
-    fastimage (2.2.3)
-    fastlane (2.179.0)
+    fastimage (2.2.4)
+    fastlane (2.187.0)
       CFPropertyList (>= 2.3, < 4.0.0)
       addressable (>= 2.3, < 3.0.0)
       artifactory (~> 3.0)
@@ -56,7 +67,7 @@ GEM
       babosa (>= 1.0.3, < 2.0.0)
       bundler (>= 1.12.0, < 3.0.0)
       colored
-      commander-fastlane (>= 4.4.6, < 5.0.0)
+      commander (~> 4.6)
       dotenv (>= 2.1.1, < 3.0.0)
       emoji_regex (>= 0.1, < 4.0)
       excon (>= 0.71.0, < 1.0.0)
@@ -65,9 +76,10 @@ GEM
       faraday_middleware (~> 1.0)
       fastimage (>= 2.1.0, < 3.0.0)
       gh_inspector (>= 1.1.2, < 2.0.0)
-      google-api-client (>= 0.37.0, < 0.39.0)
-      google-cloud-storage (>= 1.15.0, < 2.0.0)
-      highline (>= 1.7.2, < 2.0.0)
+      google-apis-androidpublisher_v3 (~> 0.1)
+      google-apis-playcustomapp_v1 (~> 0.1)
+      google-cloud-storage (~> 1.31)
+      highline (~> 2.0)
       json (< 3.0.0)
       jwt (>= 2.1.0, < 3)
       mini_magick (>= 4.9.4, < 5.0.0)
@@ -77,7 +89,6 @@ GEM
       rubyzip (>= 2.0.0, < 3.0.0)
       security (= 0.1.3)
       simctl (~> 1.6.3)
-      slack-notifier (>= 2.0.0, < 3.0.0)
       terminal-notifier (>= 2.0.0, < 3.0.0)
       terminal-table (>= 1.4.5, < 2.0.0)
       tty-screen (>= 0.6.3, < 1.0.0)
@@ -86,61 +97,56 @@ GEM
       xcodeproj (>= 1.13.0, < 2.0.0)
       xcpretty (~> 0.3.0)
       xcpretty-travis-formatter (>= 0.0.3)
-    fastlane-plugin-firebase_app_distribution (0.2.3)
+    fastlane-plugin-firebase_app_distribution (0.2.9)
     gh_inspector (1.1.3)
-    google-api-client (0.38.0)
+    google-apis-androidpublisher_v3 (0.8.0)
+      google-apis-core (>= 0.4, < 2.a)
+    google-apis-core (0.4.0)
       addressable (~> 2.5, >= 2.5.1)
-      googleauth (~> 0.9)
-      httpclient (>= 2.8.1, < 3.0)
+      googleauth (>= 0.16.2, < 2.a)
+      httpclient (>= 2.8.1, < 3.a)
       mini_mime (~> 1.0)
       representable (~> 3.0)
-      retriable (>= 2.0, < 4.0)
-      signet (~> 0.12)
-    google-apis-core (0.3.0)
-      addressable (~> 2.5, >= 2.5.1)
-      googleauth (~> 0.14)
-      httpclient (>= 2.8.1, < 3.0)
-      mini_mime (~> 1.0)
-      representable (~> 3.0)
-      retriable (>= 2.0, < 4.0)
+      retriable (>= 2.0, < 4.a)
       rexml
-      signet (~> 0.14)
       webrick
-    google-apis-iamcredentials_v1 (0.2.0)
-      google-apis-core (~> 0.1)
-    google-apis-storage_v1 (0.3.0)
-      google-apis-core (~> 0.1)
+    google-apis-iamcredentials_v1 (0.6.0)
+      google-apis-core (>= 0.4, < 2.a)
+    google-apis-playcustomapp_v1 (0.5.0)
+      google-apis-core (>= 0.4, < 2.a)
+    google-apis-storage_v1 (0.6.0)
+      google-apis-core (>= 0.4, < 2.a)
     google-cloud-core (1.6.0)
       google-cloud-env (~> 1.0)
       google-cloud-errors (~> 1.0)
     google-cloud-env (1.5.0)
       faraday (>= 0.17.3, < 2.0)
     google-cloud-errors (1.1.0)
-    google-cloud-storage (1.31.0)
+    google-cloud-storage (1.34.0)
       addressable (~> 2.5)
       digest-crc (~> 0.4)
       google-apis-iamcredentials_v1 (~> 0.1)
       google-apis-storage_v1 (~> 0.1)
-      google-cloud-core (~> 1.2)
-      googleauth (~> 0.9)
+      google-cloud-core (~> 1.6)
+      googleauth (>= 0.16.2, < 2.a)
       mini_mime (~> 1.0)
-    googleauth (0.16.0)
+    googleauth (0.16.2)
       faraday (>= 0.17.3, < 2.0)
       jwt (>= 1.4, < 3.0)
       memoist (~> 0.16)
       multi_json (~> 1.11)
       os (>= 0.9, < 2.0)
       signet (~> 0.14)
-    highline (1.7.10)
-    http-cookie (1.0.3)
+    highline (2.0.3)
+    http-cookie (1.0.4)
       domain_name (~> 0.5)
     httpclient (2.8.3)
     jmespath (1.4.0)
     json (2.5.1)
-    jwt (2.2.2)
+    jwt (2.2.3)
     memoist (0.16.2)
     mini_magick (4.11.0)
-    mini_mime (1.0.3)
+    mini_mime (1.1.0)
     multi_json (1.15.0)
     multipart-post (2.0.0)
     nanaimo (0.3.0)
@@ -148,16 +154,16 @@ GEM
     os (1.1.1)
     plist (3.6.0)
     public_suffix (4.0.6)
-    rake (13.0.3)
-    representable (3.0.4)
+    rake (13.0.4)
+    representable (3.1.1)
       declarative (< 0.1.0)
-      declarative-option (< 0.2.0)
+      trailblazer-option (>= 0.1.1, < 0.2.0)
       uber (< 0.2.0)
     retriable (3.1.2)
-    rexml (3.2.4)
+    rexml (3.2.5)
     rouge (2.0.7)
     ruby2_keywords (0.0.4)
-    rubyzip (2.3.0)
+    rubyzip (2.3.2)
     security (0.1.3)
     signet (0.15.0)
       addressable (~> 2.3)
@@ -167,10 +173,10 @@ GEM
     simctl (1.6.8)
       CFPropertyList
       naturally
-    slack-notifier (2.3.2)
     terminal-notifier (2.0.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
+    trailblazer-option (0.1.1)
     tty-cursor (0.7.1)
     tty-screen (0.8.1)
     tty-spinner (0.9.3)
@@ -182,12 +188,13 @@ GEM
     unicode-display_width (1.7.0)
     webrick (1.7.0)
     word_wrap (1.0.0)
-    xcodeproj (1.19.0)
+    xcodeproj (1.20.0)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
       claide (>= 1.0.2, < 2.0)
       colored2 (~> 3.1)
       nanaimo (~> 0.3.0)
+      rexml (~> 3.2.4)
     xcpretty (0.3.0)
       rouge (~> 2.0.7)
     xcpretty-travis-formatter (1.0.1)

packages/stream_chat_v1/ios/Runner.xcodeproj/project.pbxproj

@@ -245,8 +245,10 @@
 				"${BUILT_PRODUCTS_DIR}/DKImagePickerController/DKImagePickerController.framework",
 				"${BUILT_PRODUCTS_DIR}/DKPhotoGallery/DKPhotoGallery.framework",
 				"${BUILT_PRODUCTS_DIR}/FMDB/FMDB.framework",
+				"${BUILT_PRODUCTS_DIR}/Reachability/Reachability.framework",
 				"${BUILT_PRODUCTS_DIR}/SDWebImage/SDWebImage.framework",
 				"${BUILT_PRODUCTS_DIR}/SwiftyGif/SwiftyGif.framework",
+				"${BUILT_PRODUCTS_DIR}/connectivity_plus/connectivity_plus.framework",
 				"${BUILT_PRODUCTS_DIR}/file_picker/file_picker.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_app_badger/flutter_app_badger.framework",
 				"${BUILT_PRODUCTS_DIR}/flutter_keyboard_visibility/flutter_keyboard_visibility.framework",
@@ -273,8 +275,10 @@
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/DKImagePickerController.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/DKPhotoGallery.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/FMDB.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Reachability.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/SDWebImage.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/SwiftyGif.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/connectivity_plus.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/file_picker.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_app_badger.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/flutter_keyboard_visibility.framework",
@@ -447,7 +451,7 @@
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = io.getstream.flutter;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PROVISIONING_PROFILE_SPECIFIER = "match AdHoc io.getstream.flutter";
+				PROVISIONING_PROFILE_SPECIFIER = "match AdHoc io.getstream.flutter 1620032657";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -586,7 +590,7 @@
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = io.getstream.flutter;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PROVISIONING_PROFILE_SPECIFIER = "match AdHoc io.getstream.flutter";
+				PROVISIONING_PROFILE_SPECIFIER = "match AdHoc io.getstream.flutter 1620032657";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
@@ -620,7 +624,7 @@
 				);
 				PRODUCT_BUNDLE_IDENTIFIER = io.getstream.flutter;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				PROVISIONING_PROFILE_SPECIFIER = "match AdHoc io.getstream.flutter";
+				PROVISIONING_PROFILE_SPECIFIER = "match AdHoc io.getstream.flutter 1620032657";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
 				VERSIONING_SYSTEM = "apple-generic";

packages/stream_chat_v1/ios/fastlane/Fastfile

@@ -1,4 +1,4 @@
-fastlane_version "2.179.0"
+fastlane_version "2.187.0"
 default_platform :ios
 
 before_all do
@@ -62,7 +62,7 @@ platform :ios do
 
         settings_to_override = {
           :BUNDLE_IDENTIFIER => "io.getstream.flutter",
-          :PROVISIONING_PROFILE_SPECIFIER => "match AppStore io.getstream.flutter"
+          :PROVISIONING_PROFILE_SPECIFIER => "match AppStore io.getstream.flutter 1620032657"
         }
 
         gym(

packages/stream_chat_v1/ios/fastlane/beta_gym_export_options.plist

@@ -7,7 +7,7 @@
 	<key>provisioningProfiles</key>
 	<dict>
 		<key>io.getstream.flutter</key>
-		<string>match AdHoc io.getstream.flutter</string>
+		<string>match AdHoc io.getstream.flutter 1620032657</string>
     </dict>
 </dict>
 </plist>

packages/stream_chat_v1/ios/fastlane/report.xml

@@ -5,12 +5,12 @@
     
     
       
-      <testcase classname="fastlane.lanes" name="0: Verifying fastlane version" time="0.000404">
+      <testcase classname="fastlane.lanes" name="0: Verifying fastlane version" time="0.000512">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="1: default_platform" time="0.000191">
+      <testcase classname="fastlane.lanes" name="1: default_platform" time="0.00019">
         
       </testcase>
     
@@ -20,24 +20,22 @@
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="3: Switch to ios match_appstore lane" time="0.000191">
+      <testcase classname="fastlane.lanes" name="3: Switch to ios match_me lane" time="0.000207">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="4: is_ci" time="0.000169">
+      <testcase classname="fastlane.lanes" name="4: is_ci" time="0.000177">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="5: match" time="4.754179">
+      <testcase classname="fastlane.lanes" name="5: match" time="8.690712">
         
       </testcase>
     
       
-      <testcase classname="fastlane.lanes" name="6: gym" time="17.780547">
-        
-          <failure message="/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/actions/actions_helper.rb:67:in `execute_action'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:255:in `block in execute_action'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:229:in `chdir'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:229:in `execute_action'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:157:in `trigger_action_by_name'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/fast_file.rb:159:in `method_missing'&#10;Fastfile:68:in `block (2 levels) in parsing_binding'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/lane.rb:33:in `call'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:49:in `block in execute'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:45:in `chdir'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/runner.rb:45:in `execute'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/lane_manager.rb:47:in `cruise_lane'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/command_line_handler.rb:36:in `handle'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/commands_generator.rb:108:in `block (2 levels) in run'&#10;/Library/Ruby/Gems/2.6.0/gems/commander-fastlane-4.4.6/lib/commander/command.rb:178:in `call'&#10;/Library/Ruby/Gems/2.6.0/gems/commander-fastlane-4.4.6/lib/commander/command.rb:153:in `run'&#10;/Library/Ruby/Gems/2.6.0/gems/commander-fastlane-4.4.6/lib/commander/runner.rb:476:in `run_active_command'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane_core/lib/fastlane_core/ui/fastlane_runner.rb:76:in `run!'&#10;/Library/Ruby/Gems/2.6.0/gems/commander-fastlane-4.4.6/lib/commander/delegates.rb:15:in `run!'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/commands_generator.rb:352:in `run'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/commands_generator.rb:41:in `start'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/fastlane/lib/fastlane/cli_tools_distributor.rb:119:in `take_off'&#10;/Library/Ruby/Gems/2.6.0/gems/fastlane-2.171.0/bin/fastlane:23:in `&lt;top (required)&gt;'&#10;/usr/local/bin/fastlane:23:in `load'&#10;/usr/local/bin/fastlane:23:in `&lt;main&gt;'&#10;&#10;Error building the application - see the log above" />
+      <testcase classname="fastlane.lanes" name="6: gym" time="23.786307">
         
       </testcase>
     

packages/stream_chat_v1/lib/advanced_options_page.dart

@@ -1,3 +1,4 @@
+import 'package:example/home_page.dart';
 import 'package:example/routes/routes.dart';
 import 'package:example/stream_version.dart';
 import 'package:flutter/material.dart';
@@ -17,13 +18,13 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
   final _formKey = GlobalKey<FormState>();
 
   final TextEditingController _apiKeyController = TextEditingController();
-  String _apiKeyError;
+  String? _apiKeyError;
 
   final TextEditingController _userIdController = TextEditingController();
-  String _userIdError;
+  String? _userIdError;
 
   final TextEditingController _userTokenController = TextEditingController();
-  String _userTokenError;
+  String? _userTokenError;
 
   final TextEditingController _usernameController = TextEditingController();
 
@@ -32,22 +33,20 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
       appBar: AppBar(
-        backgroundColor: StreamChatTheme.of(context).colorTheme.white,
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
         elevation: 1,
         centerTitle: true,
         brightness: Theme.of(context).brightness,
         title: Text(
           'Advanced Options',
-          style: StreamChatTheme.of(context)
-              .textTheme
-              .headlineBold
-              .copyWith(color: StreamChatTheme.of(context).colorTheme.black),
+          style: StreamChatTheme.of(context).textTheme.headlineBold.copyWith(
+              color: StreamChatTheme.of(context).colorTheme.textHighEmphasis),
         ),
         leading: IconButton(
           icon: StreamSvgIcon.left(
-            color: StreamChatTheme.of(context).colorTheme.black,
+            color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
           ),
           onPressed: () {
             Navigator.pop(context);
@@ -73,7 +72,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                       }
                     },
                     validator: (value) {
-                      if (value.isEmpty) {
+                      if (value!.isEmpty) {
                         setState(() {
                           _apiKeyError =
                               'Please enter the Chat API Key'.toUpperCase();
@@ -84,7 +83,9 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     },
                     style: TextStyle(
                       fontSize: 14,
-                      color: StreamChatTheme.of(context).colorTheme.black,
+                      color: StreamChatTheme.of(context)
+                          .colorTheme
+                          .textHighEmphasis,
                     ),
                     decoration: InputDecoration(
                       errorStyle: TextStyle(height: 0, fontSize: 0),
@@ -92,15 +93,16 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                         fontSize: 14,
                         fontWeight: FontWeight.bold,
                         color: _apiKeyError != null
-                            ? StreamChatTheme.of(context).colorTheme.accentRed
-                            : StreamChatTheme.of(context).colorTheme.grey,
+                            ? StreamChatTheme.of(context).colorTheme.accentError
+                            : StreamChatTheme.of(context)
+                                .colorTheme
+                                .textLowEmphasis,
                       ),
                       border: UnderlineInputBorder(
                         borderRadius: BorderRadius.circular(8),
                         borderSide: BorderSide.none,
                       ),
-                      fillColor:
-                          StreamChatTheme.of(context).colorTheme.whiteSmoke,
+                      fillColor: StreamChatTheme.of(context).colorTheme.inputBg,
                       filled: true,
                       labelText: _apiKeyError != null
                           ? 'CHAT API KEY: $_apiKeyError'
@@ -119,7 +121,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                       }
                     },
                     validator: (value) {
-                      if (value.isEmpty) {
+                      if (value!.isEmpty) {
                         setState(() {
                           _userIdError =
                               'Please enter the User ID'.toUpperCase();
@@ -130,7 +132,9 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     },
                     style: TextStyle(
                       fontSize: 14,
-                      color: StreamChatTheme.of(context).colorTheme.black,
+                      color: StreamChatTheme.of(context)
+                          .colorTheme
+                          .textHighEmphasis,
                     ),
                     textInputAction: TextInputAction.next,
                     decoration: InputDecoration(
@@ -139,15 +143,16 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                         fontWeight: FontWeight.bold,
                         fontSize: 14,
                         color: _userIdError != null
-                            ? StreamChatTheme.of(context).colorTheme.accentRed
-                            : StreamChatTheme.of(context).colorTheme.grey,
+                            ? StreamChatTheme.of(context).colorTheme.accentError
+                            : StreamChatTheme.of(context)
+                                .colorTheme
+                                .textLowEmphasis,
                       ),
                       border: UnderlineInputBorder(
                         borderRadius: BorderRadius.circular(8),
                         borderSide: BorderSide.none,
                       ),
-                      fillColor:
-                          StreamChatTheme.of(context).colorTheme.whiteSmoke,
+                      fillColor: StreamChatTheme.of(context).colorTheme.inputBg,
                       filled: true,
                       labelText: _userIdError != null
                           ? 'USER ID: $_userIdError'
@@ -165,7 +170,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     },
                     controller: _userTokenController,
                     validator: (value) {
-                      if (value.isEmpty) {
+                      if (value!.isEmpty) {
                         setState(() {
                           _userTokenError =
                               'Please enter the user token'.toUpperCase();
@@ -176,7 +181,9 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                     },
                     style: TextStyle(
                       fontSize: 14,
-                      color: StreamChatTheme.of(context).colorTheme.black,
+                      color: StreamChatTheme.of(context)
+                          .colorTheme
+                          .textHighEmphasis,
                     ),
                     textInputAction: TextInputAction.next,
                     decoration: InputDecoration(
@@ -185,15 +192,16 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                         fontWeight: FontWeight.bold,
                         fontSize: 14,
                         color: _userTokenError != null
-                            ? StreamChatTheme.of(context).colorTheme.accentRed
-                            : StreamChatTheme.of(context).colorTheme.grey,
+                            ? StreamChatTheme.of(context).colorTheme.accentError
+                            : StreamChatTheme.of(context)
+                                .colorTheme
+                                .textLowEmphasis,
                       ),
                       border: UnderlineInputBorder(
                         borderRadius: BorderRadius.circular(8),
                         borderSide: BorderSide.none,
                       ),
-                      fillColor:
-                          StreamChatTheme.of(context).colorTheme.whiteSmoke,
+                      fillColor: StreamChatTheme.of(context).colorTheme.inputBg,
                       filled: true,
                       labelText: _userTokenError != null
                           ? 'USER TOKEN: $_userTokenError'
@@ -208,34 +216,45 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                       labelStyle: TextStyle(
                         fontSize: 14,
                         fontWeight: FontWeight.bold,
-                        color: StreamChatTheme.of(context).colorTheme.grey,
+                        color: StreamChatTheme.of(context)
+                            .colorTheme
+                            .textLowEmphasis,
                       ),
                       border: UnderlineInputBorder(
                         borderRadius: BorderRadius.circular(8),
                         borderSide: BorderSide.none,
                       ),
-                      fillColor:
-                          StreamChatTheme.of(context).colorTheme.whiteSmoke,
+                      fillColor: StreamChatTheme.of(context).colorTheme.inputBg,
                       filled: true,
                       labelText: 'Username (optional)',
                     ),
                   ),
                   Spacer(),
-                  RaisedButton(
-                    color: Theme.of(context).brightness == Brightness.light
-                        ? StreamChatTheme.of(context).colorTheme.accentBlue
-                        : Colors.white,
-                    elevation: 0,
-                    padding: const EdgeInsets.symmetric(vertical: 16),
-                    shape: RoundedRectangleBorder(
-                      borderRadius: BorderRadius.circular(26),
+                  ElevatedButton(
+                    style: ButtonStyle(
+                      backgroundColor: MaterialStateProperty.all<Color>(
+                          Theme.of(context).brightness == Brightness.light
+                              ? StreamChatTheme.of(context)
+                                  .colorTheme
+                                  .accentPrimary
+                              : Colors.white),
+                      elevation: MaterialStateProperty.all<double>(0),
+                      padding: MaterialStateProperty.all<EdgeInsets>(
+                          const EdgeInsets.symmetric(vertical: 16)),
+                      shape: MaterialStateProperty.all(
+                        RoundedRectangleBorder(
+                          borderRadius: BorderRadius.circular(26),
+                        ),
+                      ),
                     ),
                     child: Text(
                       'Login',
                       style: TextStyle(
                         fontSize: 16,
                         color: Theme.of(context).brightness != Brightness.light
-                            ? StreamChatTheme.of(context).colorTheme.accentBlue
+                            ? StreamChatTheme.of(context)
+                                .colorTheme
+                                .accentPrimary
                             : Colors.white,
                       ),
                     ),
@@ -243,7 +262,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                       if (loading) {
                         return;
                       }
-                      if (_formKey.currentState.validate()) {
+                      if (_formKey.currentState!.validate()) {
                         final apiKey = _apiKeyController.text;
                         final userId = _userIdController.text;
                         final userToken = _userTokenController.text;
@@ -261,7 +280,7 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                                 borderRadius: BorderRadius.circular(16),
                                 color: StreamChatTheme.of(context)
                                     .colorTheme
-                                    .white,
+                                    .barsBg,
                               ),
                               height: 100,
                               width: 100,
@@ -298,7 +317,6 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                             key: kStreamToken,
                             value: userToken,
                           );
-                          await client.disconnect();
                         } catch (e) {
                           var errorText = 'Error connecting, retry';
                           if (e is Map) {
@@ -309,15 +327,14 @@ class _AdvancedOptionsPageState extends State<AdvancedOptionsPage> {
                             _apiKeyError = errorText.toUpperCase();
                           });
                           loading = false;
-                          await client.disconnect();
                           return;
                         }
                         loading = false;
                         await Navigator.pushNamedAndRemoveUntil(
                           context,
-                          Routes.APP,
-                          ModalRoute.withName(Routes.APP),
-                          arguments: client,
+                          Routes.HOME,
+                          ModalRoute.withName(Routes.HOME),
+                          arguments: HomePageArgs(client),
                         );
                       }
                     },

packages/stream_chat_v1/lib/channel_file_display_screen.dart

@@ -0,0 +1,177 @@
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class ChannelFileDisplayScreen extends StatefulWidget {
+  /// The sorting used for the channels matching the filters.
+  /// Sorting is based on field and direction, multiple sorting options can be provided.
+  /// You can sort based on last_updated, last_message_at, updated_at, created_at or member_count.
+  /// Direction can be ascending or descending.
+  final List<SortOption>? sortOptions;
+
+  /// Pagination parameters
+  /// limit: the number of users to return (max is 30)
+  /// offset: the offset (max is 1000)
+  /// message_limit: how many messages should be included to each channel
+  final PaginationParams? paginationParams;
+
+  /// The builder used when the file list is empty.
+  final WidgetBuilder? emptyBuilder;
+
+  const ChannelFileDisplayScreen({
+    this.sortOptions,
+    this.paginationParams,
+    this.emptyBuilder,
+  });
+
+  @override
+  _ChannelFileDisplayScreenState createState() =>
+      _ChannelFileDisplayScreenState();
+}
+
+class _ChannelFileDisplayScreenState extends State<ChannelFileDisplayScreen> {
+  @override
+  void initState() {
+    super.initState();
+    final messageSearchBloc = MessageSearchBloc.of(context);
+    messageSearchBloc.search(
+      filter: Filter.in_(
+        'cid',
+        [StreamChannel.of(context).channel.cid!],
+      ),
+      messageFilter: Filter.in_(
+        'attachments.type',
+        ['file'],
+      ),
+      sort: widget.sortOptions,
+      pagination: widget.paginationParams,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+      appBar: AppBar(
+        brightness: Theme.of(context).brightness,
+        elevation: 1,
+        centerTitle: true,
+        title: Text(
+          'Files',
+          style: TextStyle(
+              color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+              fontSize: 16.0),
+        ),
+        leading: Center(
+          child: InkWell(
+            onTap: () {
+              Navigator.of(context).pop();
+            },
+            child: Container(
+              width: 24.0,
+              height: 24.0,
+              child: StreamSvgIcon.left(
+                color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+                size: 24.0,
+              ),
+            ),
+          ),
+        ),
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+      ),
+      body: _buildMediaGrid(),
+    );
+  }
+
+  Widget _buildMediaGrid() {
+    final messageSearchBloc = MessageSearchBloc.of(context);
+
+    return StreamBuilder<List<GetMessageResponse>>(
+      builder: (context, snapshot) {
+        if (snapshot.data == null) {
+          return Center(
+            child: const CircularProgressIndicator(),
+          );
+        }
+
+        if (snapshot.data!.isEmpty) {
+          if (widget.emptyBuilder != null) {
+            return widget.emptyBuilder!(context);
+          }
+          return Center(
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                StreamSvgIcon.files(
+                  size: 136.0,
+                  color: StreamChatTheme.of(context).colorTheme.disabled,
+                ),
+                SizedBox(height: 16.0),
+                Text(
+                  'No Files',
+                  style: TextStyle(
+                    fontSize: 14.0,
+                    color:
+                        StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+                  ),
+                ),
+                SizedBox(height: 8.0),
+                Text(
+                  'Files sent in this chat will appear here',
+                  textAlign: TextAlign.center,
+                  style: TextStyle(
+                    fontSize: 14.0,
+                    color: StreamChatTheme.of(context)
+                        .colorTheme
+                        .textHighEmphasis
+                        .withOpacity(0.5),
+                  ),
+                ),
+              ],
+            ),
+          );
+        }
+
+        final media = <Attachment, Message>{};
+
+        for (var item in snapshot.data!) {
+          item.message.attachments.where((e) => e.type == 'file').forEach((e) {
+            media[e] = item.message;
+          });
+        }
+
+        return LazyLoadScrollView(
+          onEndOfPage: () => messageSearchBloc.search(
+            filter: Filter.in_(
+              'cid',
+              [StreamChannel.of(context).channel.cid!],
+            ),
+            messageFilter: Filter.in_(
+              'attachments.type',
+              ['file'],
+            ),
+            sort: widget.sortOptions,
+            pagination: widget.paginationParams!.copyWith(
+              offset: messageSearchBloc.messageResponses?.length ?? 0,
+            ),
+          ),
+          child: ListView.builder(
+            itemBuilder: (context, position) {
+              return Padding(
+                padding: const EdgeInsets.all(1.0),
+                child: Padding(
+                  padding: const EdgeInsets.all(8.0),
+                  child: FileAttachment(
+                    message: media.values.toList()[position],
+                    attachment: media.keys.toList()[position],
+                  ),
+                ),
+              );
+            },
+            itemCount: media.length,
+          ),
+        );
+      },
+      stream: messageSearchBloc.messagesStream,
+    );
+  }
+}

packages/stream_chat_v1/lib/channel_list.dart

@@ -0,0 +1,199 @@
+import 'dart:async';
+
+import 'package:example/routes/routes.dart';
+import 'package:example/search_text_field.dart';
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+import 'channel_page.dart';
+import 'chat_info_screen.dart';
+import 'group_info_screen.dart';
+
+class ChannelList extends StatefulWidget {
+  @override
+  _ChannelList createState() => _ChannelList();
+}
+
+class _ChannelList extends State<ChannelList> {
+  TextEditingController? _controller;
+
+  String _channelQuery = '';
+
+  bool _isSearchActive = false;
+
+  Timer? _debounce;
+
+  void _channelQueryListener() {
+    if (_debounce?.isActive ?? false) _debounce!.cancel();
+    _debounce = Timer(const Duration(milliseconds: 350), () {
+      if (mounted) {
+        setState(() {
+          _channelQuery = _controller!.text;
+          _isSearchActive = _channelQuery.isNotEmpty;
+        });
+      }
+    });
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = TextEditingController()..addListener(_channelQueryListener);
+  }
+
+  @override
+  void dispose() {
+    _controller?.removeListener(_channelQueryListener);
+    _controller?.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final user = StreamChat.of(context).user;
+    return WillPopScope(
+      onWillPop: () async {
+        if (_isSearchActive) {
+          _controller!.clear();
+          setState(() => _isSearchActive = false);
+          return false;
+        }
+        return true;
+      },
+      child: NestedScrollView(
+        floatHeaderSlivers: true,
+        headerSliverBuilder: (_, __) => [
+          SliverToBoxAdapter(
+            child: SearchTextField(
+              controller: _controller,
+              showCloseButton: _isSearchActive,
+            ),
+          ),
+        ],
+        body: AnimatedSwitcher(
+          duration: const Duration(milliseconds: 350),
+          child: GestureDetector(
+            behavior: HitTestBehavior.opaque,
+            onPanDown: (_) => FocusScope.of(context).unfocus(),
+            child: _isSearchActive
+                ? MessageSearchBloc(
+                    child: MessageSearchListView(
+                      showErrorTile: true,
+                      messageQuery: _channelQuery,
+                      filters: Filter.in_('members', [user!.id]),
+                      sortOptions: [
+                        SortOption(
+                          'created_at',
+                          direction: SortOption.ASC,
+                        ),
+                      ],
+                      pullToRefresh: false,
+                      paginationParams: PaginationParams(limit: 20),
+                      emptyBuilder: (_) {
+                        return LayoutBuilder(
+                          builder: (context, viewportConstraints) {
+                            return SingleChildScrollView(
+                              physics: AlwaysScrollableScrollPhysics(),
+                              child: ConstrainedBox(
+                                constraints: BoxConstraints(
+                                  minHeight: viewportConstraints.maxHeight,
+                                ),
+                                child: Center(
+                                  child: Column(
+                                    children: [
+                                      Padding(
+                                        padding: const EdgeInsets.all(24),
+                                        child: StreamSvgIcon.search(
+                                          size: 96,
+                                          color: Colors.grey,
+                                        ),
+                                      ),
+                                      Text(
+                                        'No results...',
+                                      ),
+                                    ],
+                                  ),
+                                ),
+                              ),
+                            );
+                          },
+                        );
+                      },
+                      onItemTap: (messageResponse) async {
+                        FocusScope.of(context).requestFocus(FocusNode());
+                        final client = StreamChat.of(context).client;
+                        final message = messageResponse.message;
+                        final channel = client.channel(
+                          messageResponse.channel!.type,
+                          id: messageResponse.channel!.id,
+                        );
+                        if (channel.state == null) {
+                          await channel.watch();
+                        }
+                        Navigator.pushNamed(
+                          context,
+                          Routes.CHANNEL_PAGE,
+                          arguments: ChannelPageArgs(
+                            channel: channel,
+                            initialMessage: message,
+                          ),
+                        );
+                      },
+                    ),
+                  )
+                : ChannelsBloc(
+                    child: ChannelListView(
+                      onStartChatPressed: () {
+                        Navigator.pushNamed(context, Routes.NEW_CHAT);
+                      },
+                      swipeToAction: true,
+                      filter: Filter.in_('members', [user!.id]),
+                      presence: true,
+                      pagination: PaginationParams(
+                        limit: 20,
+                      ),
+                      channelWidget: ChannelPage(),
+                      onViewInfoTap: (channel) {
+                        Navigator.pop(context);
+                        if (channel.memberCount == 2 && channel.isDistinct) {
+                          Navigator.push(
+                            context,
+                            MaterialPageRoute(
+                              builder: (context) => StreamChannel(
+                                channel: channel,
+                                child: ChatInfoScreen(
+                                  messageTheme: StreamChatTheme.of(context)
+                                      .ownMessageTheme,
+                                  user: channel.state!.members
+                                      .where((m) =>
+                                          m.userId !=
+                                          channel.client.state.user!.id)
+                                      .first
+                                      .user,
+                                ),
+                              ),
+                            ),
+                          );
+                        } else {
+                          Navigator.push(
+                            context,
+                            MaterialPageRoute(
+                              builder: (context) => StreamChannel(
+                                channel: channel,
+                                child: GroupInfoScreen(
+                                  messageTheme: StreamChatTheme.of(context)
+                                      .ownMessageTheme,
+                                ),
+                              ),
+                            ),
+                          );
+                        }
+                      },
+                    ),
+                  ),
+          ),
+        ),
+      ),
+    );
+  }
+}

packages/stream_chat_v1/lib/channel_list_page.dart

@@ -0,0 +1,284 @@
+import 'dart:async';
+
+import 'package:example/routes/routes.dart';
+import 'package:example/user_mentions_page.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_app_badger/flutter_app_badger.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:streaming_shared_preferences/streaming_shared_preferences.dart';
+
+import 'channel_list.dart';
+
+class ChannelListPage extends StatefulWidget {
+  const ChannelListPage({
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  _ChannelListPageState createState() => _ChannelListPageState();
+}
+
+class _ChannelListPageState extends State<ChannelListPage> {
+  int _currentIndex = 0;
+
+  bool _isSelected(int index) => _currentIndex == index;
+
+  List<BottomNavigationBarItem> get _navBarItems {
+    return <BottomNavigationBarItem>[
+      BottomNavigationBarItem(
+        icon: Stack(
+          clipBehavior: Clip.none,
+          children: [
+            StreamSvgIcon.message(
+              color: _isSelected(0)
+                  ? StreamChatTheme.of(context).colorTheme.textHighEmphasis
+                  : Colors.grey,
+            ),
+            Positioned(
+              top: -3,
+              right: -16,
+              child: UnreadIndicator(),
+            ),
+          ],
+        ),
+        label: 'Chats',
+      ),
+      BottomNavigationBarItem(
+        icon: Stack(
+          clipBehavior: Clip.none,
+          children: [
+            StreamSvgIcon.mentions(
+              color: _isSelected(1)
+                  ? StreamChatTheme.of(context).colorTheme.textHighEmphasis
+                  : Colors.grey,
+            ),
+          ],
+        ),
+        label: 'Mentions',
+      ),
+    ];
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final user = StreamChat.of(context).user;
+    if (user == null) {
+      return Offstage();
+    }
+    return Scaffold(
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
+      appBar: ChannelListHeader(
+        onNewChatButtonTap: () {
+          Navigator.pushNamed(context, Routes.NEW_CHAT);
+        },
+        preNavigationCallback: () {
+          FocusScope.of(context).requestFocus(FocusNode());
+        },
+      ),
+      drawer: LeftDrawer(
+        user: user,
+      ),
+      drawerEdgeDragWidth: 50,
+      bottomNavigationBar: BottomNavigationBar(
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+        currentIndex: _currentIndex,
+        items: _navBarItems,
+        selectedLabelStyle: StreamChatTheme.of(context).textTheme.footnoteBold,
+        unselectedLabelStyle:
+            StreamChatTheme.of(context).textTheme.footnoteBold,
+        type: BottomNavigationBarType.fixed,
+        selectedItemColor:
+            StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+        unselectedItemColor: Colors.grey,
+        onTap: (index) {
+          setState(() => _currentIndex = index);
+        },
+      ),
+      body: IndexedStack(
+        index: _currentIndex,
+        children: [
+          ChannelList(),
+          UserMentionsPage(),
+        ],
+      ),
+    );
+  }
+
+  StreamSubscription<int>? badgeListener;
+
+  @override
+  void initState() {
+    if (!kIsWeb) {
+      badgeListener = StreamChat.of(context)
+          .client
+          .state
+          .totalUnreadCountStream
+          .listen((count) {
+        if (count > 0) {
+          FlutterAppBadger.updateBadgeCount(count);
+        } else {
+          FlutterAppBadger.removeBadge();
+        }
+      });
+    }
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    badgeListener?.cancel();
+    super.dispose();
+  }
+}
+
+class LeftDrawer extends StatelessWidget {
+  const LeftDrawer({
+    Key? key,
+    required this.user,
+  }) : super(key: key);
+
+  final User user;
+
+  @override
+  Widget build(BuildContext context) {
+    return Drawer(
+      child: Container(
+        color: StreamChatTheme.of(context).colorTheme.barsBg,
+        child: SafeArea(
+          child: Padding(
+            padding: EdgeInsets.only(
+              top: MediaQuery.of(context).viewPadding.top + 8,
+            ),
+            child: Column(
+              children: [
+                Padding(
+                  padding: const EdgeInsets.only(
+                    bottom: 20.0,
+                    left: 8,
+                  ),
+                  child: Row(
+                    children: [
+                      UserAvatar(
+                        user: user,
+                        showOnlineStatus: false,
+                        constraints: BoxConstraints.tight(Size.fromRadius(20)),
+                      ),
+                      Padding(
+                        padding: const EdgeInsets.only(left: 16.0),
+                        child: Text(
+                          user.name,
+                          style: TextStyle(
+                            fontSize: 16,
+                            fontWeight: FontWeight.bold,
+                          ),
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+                ListTile(
+                  leading: StreamSvgIcon.penWrite(
+                    color: StreamChatTheme.of(context)
+                        .colorTheme
+                        .textHighEmphasis
+                        .withOpacity(.5),
+                  ),
+                  onTap: () {
+                    Navigator.popAndPushNamed(
+                      context,
+                      Routes.NEW_CHAT,
+                    );
+                  },
+                  title: Text(
+                    'New direct message',
+                    style: TextStyle(
+                      fontSize: 14.5,
+                    ),
+                  ),
+                ),
+                ListTile(
+                  leading: StreamSvgIcon.contacts(
+                    color: StreamChatTheme.of(context)
+                        .colorTheme
+                        .textHighEmphasis
+                        .withOpacity(.5),
+                  ),
+                  onTap: () {
+                    Navigator.popAndPushNamed(
+                      context,
+                      Routes.NEW_GROUP_CHAT,
+                    );
+                  },
+                  title: Text(
+                    'New group',
+                    style: TextStyle(
+                      fontSize: 14.5,
+                    ),
+                  ),
+                ),
+                Expanded(
+                  child: Container(
+                    alignment: Alignment.bottomCenter,
+                    child: ListTile(
+                      onTap: () async {
+                        Navigator.pop(context);
+
+                        if (!kIsWeb) {
+                          final secureStorage = FlutterSecureStorage();
+                          await secureStorage.deleteAll();
+                        }
+
+                        final client = StreamChat.of(context).client;
+                        client.disconnectUser();
+                        await client.dispose();
+
+                        await Navigator.of(
+                          context,
+                          rootNavigator: true,
+                        ).pushNamedAndRemoveUntil(
+                          Routes.CHOOSE_USER,
+                          ModalRoute.withName(Routes.CHOOSE_USER),
+                        );
+                      },
+                      leading: StreamSvgIcon.user(
+                        color: StreamChatTheme.of(context)
+                            .colorTheme
+                            .textHighEmphasis
+                            .withOpacity(.5),
+                      ),
+                      title: Text(
+                        'Sign out',
+                        style: TextStyle(
+                          fontSize: 14.5,
+                        ),
+                      ),
+                      trailing: IconButton(
+                        icon: StreamSvgIcon.iconMoon(
+                          size: 24,
+                        ),
+                        color: StreamChatTheme.of(context)
+                            .colorTheme
+                            .textLowEmphasis,
+                        onPressed: () async {
+                          final sp = await StreamingSharedPreferences.instance;
+                          sp.setInt(
+                            'theme',
+                            Theme.of(context).brightness == Brightness.dark
+                                ? 1
+                                : -1,
+                          );
+                        },
+                      ),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

packages/stream_chat_v1/lib/channel_media_display_screen.dart

@@ -0,0 +1,235 @@
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:video_player/video_player.dart';
+
+class ChannelMediaDisplayScreen extends StatefulWidget {
+  /// The sorting used for the channels matching the filters.
+  /// Sorting is based on field and direction, multiple sorting options can be provided.
+  /// You can sort based on last_updated, last_message_at, updated_at, created_at or member_count.
+  /// Direction can be ascending or descending.
+  final List<SortOption>? sortOptions;
+
+  /// Pagination parameters
+  /// limit: the number of users to return (max is 30)
+  /// offset: the offset (max is 1000)
+  /// message_limit: how many messages should be included to each channel
+  final PaginationParams? paginationParams;
+
+  /// The builder used when the file list is empty.
+  final WidgetBuilder? emptyBuilder;
+
+  final ShowMessageCallback? onShowMessage;
+
+  final MessageTheme messageTheme;
+
+  const ChannelMediaDisplayScreen({
+    required this.messageTheme,
+    this.sortOptions,
+    this.paginationParams,
+    this.emptyBuilder,
+    this.onShowMessage,
+  });
+
+  @override
+  _ChannelMediaDisplayScreenState createState() =>
+      _ChannelMediaDisplayScreenState();
+}
+
+class _ChannelMediaDisplayScreenState extends State<ChannelMediaDisplayScreen> {
+  Map<String?, VideoPlayerController?> controllerCache = {};
+
+  @override
+  void initState() {
+    super.initState();
+    final messageSearchBloc = MessageSearchBloc.of(context);
+    messageSearchBloc.search(
+      filter: Filter.in_(
+        'cid',
+        [StreamChannel.of(context).channel.cid!],
+      ),
+      messageFilter: Filter.in_(
+        'attachments.type',
+        ['image', 'video'],
+      ),
+      sort: widget.sortOptions,
+      pagination: widget.paginationParams,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+      appBar: AppBar(
+        brightness: Theme.of(context).brightness,
+        elevation: 1,
+        centerTitle: true,
+        title: Text(
+          'Photos & Videos',
+          style: TextStyle(
+            color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+            fontSize: 16.0,
+          ),
+        ),
+        leading: StreamBackButton(),
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+      ),
+      body: _buildMediaGrid(),
+    );
+  }
+
+  Widget _buildMediaGrid() {
+    final messageSearchBloc = MessageSearchBloc.of(context);
+
+    return StreamBuilder<List<GetMessageResponse>>(
+      builder: (context, snapshot) {
+        if (snapshot.data == null) {
+          return Center(
+            child: const CircularProgressIndicator(),
+          );
+        }
+
+        if (snapshot.data!.isEmpty) {
+          if (widget.emptyBuilder != null) {
+            return widget.emptyBuilder!(context);
+          }
+          return Center(
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                StreamSvgIcon.pictures(
+                  size: 136.0,
+                  color: StreamChatTheme.of(context).colorTheme.disabled,
+                ),
+                SizedBox(height: 16.0),
+                Text(
+                  'No Media',
+                  style: TextStyle(
+                    fontSize: 14.0,
+                    color:
+                        StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+                  ),
+                ),
+                SizedBox(height: 8.0),
+                Text(
+                  'Photos or video sent in this chat will \nappear here',
+                  textAlign: TextAlign.center,
+                  style: TextStyle(
+                    fontSize: 14.0,
+                    color: StreamChatTheme.of(context)
+                        .colorTheme
+                        .textHighEmphasis
+                        .withOpacity(0.5),
+                  ),
+                ),
+              ],
+            ),
+          );
+        }
+
+        final media = <_AssetPackage>[];
+
+        for (var item in snapshot.data!) {
+          item.message.attachments
+              .where((e) =>
+                  (e.type == 'image' || e.type == 'video') &&
+                  e.ogScrapeUrl == null)
+              .forEach((e) {
+            VideoPlayerController? controller;
+            if (e.type == 'video') {
+              var cachedController = controllerCache[e.assetUrl];
+
+              if (cachedController == null) {
+                controller = VideoPlayerController.network(e.assetUrl!);
+                controller.initialize();
+                controllerCache[e.assetUrl] = controller;
+              } else {
+                controller = cachedController;
+              }
+            }
+            media.add(_AssetPackage(e, item.message, controller));
+          });
+        }
+
+        return LazyLoadScrollView(
+          onEndOfPage: () => messageSearchBloc.search(
+            filter: Filter.in_(
+              'cid',
+              [StreamChannel.of(context).channel.cid!],
+            ),
+            messageFilter: Filter.in_(
+              'attachments.type',
+              ['image', 'video'],
+            ),
+            sort: widget.sortOptions,
+            pagination: widget.paginationParams!.copyWith(
+              offset: messageSearchBloc.messageResponses?.length ?? 0,
+            ),
+          ),
+          child: GridView.builder(
+            gridDelegate:
+                SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3),
+            itemBuilder: (context, position) {
+              var channel = StreamChannel.of(context).channel;
+              return Padding(
+                padding: const EdgeInsets.all(1.0),
+                child: InkWell(
+                  onTap: () {
+                    Navigator.push(
+                      context,
+                      MaterialPageRoute(
+                        builder: (context) => StreamChannel(
+                          channel: channel,
+                          child: FullScreenMedia(
+                            mediaAttachments:
+                                media.map((e) => e.attachment).toList(),
+                            startIndex: position,
+                            message: media[position].message,
+                            userName: media[position].message.user!.name,
+                            onShowMessage: widget.onShowMessage,
+                          ),
+                        ),
+                      ),
+                    );
+                  },
+                  child: media[position].attachment.type == 'image'
+                      ? IgnorePointer(
+                          child: ImageAttachment(
+                            attachment: media[position].attachment,
+                            message: media[position].message,
+                            showTitle: false,
+                            size: Size(
+                              MediaQuery.of(context).size.width * 0.8,
+                              MediaQuery.of(context).size.height * 0.3,
+                            ),
+                            messageTheme: widget.messageTheme,
+                          ),
+                        )
+                      : VideoPlayer(media[position].videoPlayer!),
+                ),
+              );
+            },
+            itemCount: media.length,
+          ),
+        );
+      },
+      stream: messageSearchBloc.messagesStream,
+    );
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    for (var c in controllerCache.values) {
+      c!.dispose();
+    }
+  }
+}
+
+class _AssetPackage {
+  Attachment attachment;
+  Message message;
+  VideoPlayerController? videoPlayer;
+
+  _AssetPackage(this.attachment, this.message, this.videoPlayer);
+}

packages/stream_chat_v1/lib/channel_page.dart

@@ -0,0 +1,188 @@
+import 'package:collection/collection.dart';
+import 'package:example/routes/routes.dart';
+import 'package:example/thread_page.dart';
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+import 'chat_info_screen.dart';
+import 'group_info_screen.dart';
+
+class ChannelPageArgs {
+  final Channel? channel;
+  final Message? initialMessage;
+
+  const ChannelPageArgs({
+    this.channel,
+    this.initialMessage,
+  });
+}
+
+class ChannelPage extends StatefulWidget {
+  final int? initialScrollIndex;
+  final double? initialAlignment;
+  final bool highlightInitialMessage;
+
+  const ChannelPage({
+    Key? key,
+    this.initialScrollIndex,
+    this.initialAlignment,
+    this.highlightInitialMessage = false,
+  }) : super(key: key);
+
+  @override
+  _ChannelPageState createState() => _ChannelPageState();
+}
+
+class _ChannelPageState extends State<ChannelPage> {
+  Message? _quotedMessage;
+  FocusNode? _focusNode;
+
+  @override
+  void initState() {
+    _focusNode = FocusNode();
+    super.initState();
+  }
+
+  @override
+  void dispose() {
+    _focusNode!.dispose();
+    super.dispose();
+  }
+
+  void _reply(Message message) {
+    setState(() => _quotedMessage = message);
+    WidgetsBinding.instance!.addPostFrameCallback((timeStamp) {
+      _focusNode!.requestFocus();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
+      appBar: ChannelHeader(
+        showTypingIndicator: false,
+        onImageTap: () async {
+          var channel = StreamChannel.of(context).channel;
+
+          if (channel.memberCount == 2 && channel.isDistinct) {
+            final currentUser = StreamChat.of(context).user;
+            final otherUser = channel.state!.members.firstWhereOrNull(
+              (element) => element.user!.id != currentUser!.id,
+            );
+            if (otherUser != null) {
+              final pop = await Navigator.push(
+                context,
+                MaterialPageRoute(
+                  builder: (context) => StreamChannel(
+                    child: ChatInfoScreen(
+                      messageTheme: StreamChatTheme.of(context).ownMessageTheme,
+                      user: otherUser.user,
+                    ),
+                    channel: channel,
+                  ),
+                ),
+              );
+
+              if (pop == true) {
+                Navigator.pop(context);
+              }
+            }
+          } else {
+            await Navigator.push(
+              context,
+              MaterialPageRoute(
+                builder: (context) => StreamChannel(
+                  child: GroupInfoScreen(
+                    messageTheme: StreamChatTheme.of(context).ownMessageTheme,
+                  ),
+                  channel: channel,
+                ),
+              ),
+            );
+          }
+        },
+      ),
+      body: Column(
+        children: <Widget>[
+          Expanded(
+            child: Stack(
+              children: <Widget>[
+                MessageListView(
+                  initialScrollIndex: widget.initialScrollIndex,
+                  initialAlignment: widget.initialAlignment,
+                  highlightInitialMessage: widget.highlightInitialMessage,
+                  onMessageSwiped: _reply,
+                  messageBuilder: (context, details, messages, defaultMessage) {
+                    return defaultMessage.copyWith(
+                      onReplyTap: _reply,
+                      onShowMessage: (m, c) async {
+                        final client = StreamChat.of(context).client;
+                        final message = m;
+                        final channel = client.channel(
+                          c.type,
+                          id: c.id,
+                        );
+                        if (channel.state == null) {
+                          await channel.watch();
+                        }
+                        Navigator.pushReplacementNamed(
+                          context,
+                          Routes.CHANNEL_PAGE,
+                          arguments: ChannelPageArgs(
+                            channel: channel,
+                            initialMessage: message,
+                          ),
+                        );
+                      },
+                    );
+                  },
+                  threadBuilder: (_, parentMessage) {
+                    return ThreadPage(
+                      parent: parentMessage,
+                    );
+                  },
+                  pinPermissions: ['owner', 'admin', 'member'],
+                ),
+                Positioned(
+                  bottom: 0,
+                  left: 0,
+                  right: 0,
+                  child: Container(
+                    alignment: Alignment.centerLeft,
+                    color: StreamChatTheme.of(context)
+                        .colorTheme
+                        .appBg
+                        .withOpacity(.9),
+                    child: TypingIndicator(
+                      alignment: Alignment.centerLeft,
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 8,
+                        vertical: 4,
+                      ),
+                      style: StreamChatTheme.of(context)
+                          .textTheme
+                          .footnote
+                          .copyWith(
+                              color: StreamChatTheme.of(context)
+                                  .colorTheme
+                                  .textLowEmphasis),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+          MessageInput(
+            focusNode: _focusNode,
+            quotedMessage: _quotedMessage,
+            onQuotedMessageCleared: () {
+              setState(() => _quotedMessage = null);
+              _focusNode!.unfocus();
+            },
+          ),
+        ],
+      ),
+    );
+  }
+}

packages/stream_chat_v1/lib/chat_info_screen.dart

@@ -1,24 +1,34 @@
+import 'package:collection/collection.dart' show IterableExtension;
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:jiffy/jiffy.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
-import 'main.dart';
+import 'channel_file_display_screen.dart';
+import 'channel_media_display_screen.dart';
+import 'channel_page.dart';
+import 'pinned_messages_screen.dart';
 import 'routes/routes.dart';
 
 /// Detail screen for a 1:1 chat correspondence
 class ChatInfoScreen extends StatefulWidget {
   /// User in consideration
-  final User user;
+  final User? user;
 
-  const ChatInfoScreen({Key key, this.user}) : super(key: key);
+  final MessageTheme messageTheme;
+
+  const ChatInfoScreen({
+    Key? key,
+    required this.messageTheme,
+    this.user,
+  }) : super(key: key);
 
   @override
   _ChatInfoScreenState createState() => _ChatInfoScreenState();
 }
 
 class _ChatInfoScreenState extends State<ChatInfoScreen> {
-  ValueNotifier<bool> mutedBool = ValueNotifier(false);
+  ValueNotifier<bool?> mutedBool = ValueNotifier(false);
 
   @override
   void initState() {
@@ -30,25 +40,25 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
   Widget build(BuildContext context) {
     final channel = StreamChannel.of(context).channel;
     return Scaffold(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
       body: ListView(
         children: [
           _buildUserHeader(),
           Container(
             height: 8.0,
-            color: StreamChatTheme.of(context).colorTheme.greyGainsboro,
+            color: StreamChatTheme.of(context).colorTheme.disabled,
           ),
           _buildOptionListTiles(),
           Container(
             height: 8.0,
-            color: StreamChatTheme.of(context).colorTheme.greyGainsboro,
+            color: StreamChatTheme.of(context).colorTheme.disabled,
           ),
           if ([
             'admin',
             'owner',
-          ].contains(channel.state.members
-              .firstWhere((m) => m.userId == channel.client.state.user.id,
-                  orElse: () => null)
+          ].contains(channel.state!.members
+              .firstWhereOrNull(
+                  (m) => m.userId == channel.client.state.user!.id)
               ?.role))
             _buildDeleteListTile(),
         ],
@@ -58,7 +68,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
 
   Widget _buildUserHeader() {
     return Material(
-      color: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      color: StreamChatTheme.of(context).colorTheme.appBg,
       child: SafeArea(
         child: Stack(
           children: [
@@ -68,7 +78,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                 Padding(
                   padding: const EdgeInsets.all(16.0),
                   child: UserAvatar(
-                    user: widget.user,
+                    user: widget.user!,
                     constraints: BoxConstraints(
                       maxWidth: 72.0,
                       maxHeight: 72.0,
@@ -78,23 +88,23 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                   ),
                 ),
                 Text(
-                  widget.user.name,
+                  widget.user!.name,
                   style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.bold),
                 ),
                 SizedBox(height: 7.0),
                 _buildConnectedTitleState(),
                 SizedBox(height: 15.0),
                 OptionListTile(
-                  title: '@${widget.user.id}',
-                  tileColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+                  title: '@${widget.user!.id}',
+                  tileColor: StreamChatTheme.of(context).colorTheme.appBg,
                   trailing: Padding(
                     padding: const EdgeInsets.symmetric(horizontal: 8.0),
                     child: Text(
-                      widget.user.name,
+                      widget.user!.name,
                       style: TextStyle(
                           color: StreamChatTheme.of(context)
                               .colorTheme
-                              .black
+                              .textHighEmphasis
                               .withOpacity(0.5),
                           fontSize: 16.0),
                     ),
@@ -124,7 +134,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         //   title: 'Notifications',
         //   leading: StreamSvgIcon.Icon_notification(
         //     size: 24.0,
-        //     color: StreamChatTheme.of(context).colorTheme.black.withOpacity(0.5),
+        //     color: StreamChatTheme.of(context).colorTheme.textHighEmphasis.withOpacity(0.5),
         //   ),
         //   trailing: CupertinoSwitch(
         //     value: true,
@@ -138,7 +148,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
               mutedBool.value = snapshot.data;
 
               return OptionListTile(
-                tileColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+                tileColor: StreamChatTheme.of(context).colorTheme.appBg,
                 title: 'Mute user',
                 titleTextStyle: StreamChatTheme.of(context).textTheme.body,
                 leading: Padding(
@@ -147,21 +157,21 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                     size: 24.0,
                     color: StreamChatTheme.of(context)
                         .colorTheme
-                        .black
+                        .textHighEmphasis
                         .withOpacity(0.5),
                   ),
                 ),
                 trailing: snapshot.data == null
                     ? CircularProgressIndicator()
-                    : ValueListenableBuilder<bool>(
+                    : ValueListenableBuilder<bool?>(
                         valueListenable: mutedBool,
                         builder: (context, value, _) {
                           return CupertinoSwitch(
-                            value: value,
+                            value: value!,
                             onChanged: (val) {
                               mutedBool.value = val;
 
-                              if (snapshot.data) {
+                              if (snapshot.data!) {
                                 channel.channel.unmute();
                               } else {
                                 channel.channel.mute();
@@ -176,7 +186,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         //   title: 'Block User',
         //   leading: StreamSvgIcon.Icon_user_delete(
         //     size: 24.0,
-        //     color: StreamChatTheme.of(context).colorTheme.black.withOpacity(0.5),
+        //     color: StreamChatTheme.of(context).colorTheme.textHighEmphasis.withOpacity(0.5),
         //   ),
         //   trailing: CupertinoSwitch(
         //     value: widget.user.banned,
@@ -190,20 +200,83 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         //   ),
         //   onTap: () {},
         // ),
+        OptionListTile(
+          title: 'Pinned Messages',
+          tileColor: StreamChatTheme.of(context).colorTheme.appBg,
+          titleTextStyle: StreamChatTheme.of(context).textTheme.body,
+          leading: Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 22.0),
+            child: StreamSvgIcon.pin(
+              size: 24.0,
+              color: StreamChatTheme.of(context)
+                  .colorTheme
+                  .textHighEmphasis
+                  .withOpacity(0.5),
+            ),
+          ),
+          trailing: StreamSvgIcon.right(
+            color: StreamChatTheme.of(context).colorTheme.textLowEmphasis,
+          ),
+          onTap: () {
+            final channel = StreamChannel.of(context).channel;
+
+            Navigator.push(
+              context,
+              MaterialPageRoute(
+                builder: (context) => StreamChannel(
+                  channel: channel,
+                  child: MessageSearchBloc(
+                    child: PinnedMessagesScreen(
+                      messageTheme: widget.messageTheme,
+                      sortOptions: [
+                        SortOption(
+                          'created_at',
+                          direction: SortOption.ASC,
+                        ),
+                      ],
+                      paginationParams: PaginationParams(limit: 20),
+                      onShowMessage: (m, c) async {
+                        final client = StreamChat.of(context).client;
+                        final message = m;
+                        final channel = client.channel(
+                          c.type,
+                          id: c.id,
+                        );
+                        if (channel.state == null) {
+                          await channel.watch();
+                        }
+                        Navigator.pushNamed(
+                          context,
+                          Routes.CHANNEL_PAGE,
+                          arguments: ChannelPageArgs(
+                            channel: channel,
+                            initialMessage: message,
+                          ),
+                        );
+                      },
+                    ),
+                  ),
+                ),
+              ),
+            );
+          },
+        ),
         OptionListTile(
           title: 'Photos & Videos',
-          tileColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+          tileColor: StreamChatTheme.of(context).colorTheme.appBg,
           titleTextStyle: StreamChatTheme.of(context).textTheme.body,
           leading: Padding(
             padding: const EdgeInsets.symmetric(horizontal: 16.0),
             child: StreamSvgIcon.pictures(
               size: 36.0,
-              color:
-                  StreamChatTheme.of(context).colorTheme.black.withOpacity(0.5),
+              color: StreamChatTheme.of(context)
+                  .colorTheme
+                  .textHighEmphasis
+                  .withOpacity(0.5),
             ),
           ),
           trailing: StreamSvgIcon.right(
-            color: StreamChatTheme.of(context).colorTheme.grey,
+            color: StreamChatTheme.of(context).colorTheme.textLowEmphasis,
           ),
           onTap: () {
             final channel = StreamChannel.of(context).channel;
@@ -215,6 +288,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
                   channel: channel,
                   child: MessageSearchBloc(
                     child: ChannelMediaDisplayScreen(
+                      messageTheme: widget.messageTheme,
                       sortOptions: [
                         SortOption(
                           'created_at',
@@ -250,18 +324,20 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         ),
         OptionListTile(
           title: 'Files',
-          tileColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+          tileColor: StreamChatTheme.of(context).colorTheme.appBg,
           titleTextStyle: StreamChatTheme.of(context).textTheme.body,
           leading: Padding(
             padding: const EdgeInsets.symmetric(horizontal: 18.0),
             child: StreamSvgIcon.files(
               size: 32.0,
-              color:
-                  StreamChatTheme.of(context).colorTheme.black.withOpacity(0.5),
+              color: StreamChatTheme.of(context)
+                  .colorTheme
+                  .textHighEmphasis
+                  .withOpacity(0.5),
             ),
           ),
           trailing: StreamSvgIcon.right(
-            color: StreamChatTheme.of(context).colorTheme.grey,
+            color: StreamChatTheme.of(context).colorTheme.textLowEmphasis,
           ),
           onTap: () {
             final channel = StreamChannel.of(context).channel;
@@ -289,18 +365,20 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         ),
         OptionListTile(
           title: 'Shared groups',
-          tileColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+          tileColor: StreamChatTheme.of(context).colorTheme.appBg,
           titleTextStyle: StreamChatTheme.of(context).textTheme.body,
           leading: Padding(
             padding: const EdgeInsets.symmetric(horizontal: 22.0),
             child: StreamSvgIcon.iconGroup(
               size: 24.0,
-              color:
-                  StreamChatTheme.of(context).colorTheme.black.withOpacity(0.5),
+              color: StreamChatTheme.of(context)
+                  .colorTheme
+                  .textHighEmphasis
+                  .withOpacity(0.5),
             ),
           ),
           trailing: StreamSvgIcon.right(
-            color: StreamChatTheme.of(context).colorTheme.grey,
+            color: StreamChatTheme.of(context).colorTheme.textLowEmphasis,
           ),
           onTap: () {
             Navigator.push(
@@ -317,21 +395,21 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
   Widget _buildDeleteListTile() {
     return OptionListTile(
       title: 'Delete Conversation',
-      tileColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      tileColor: StreamChatTheme.of(context).colorTheme.appBg,
       titleTextStyle: StreamChatTheme.of(context).textTheme.body.copyWith(
-            color: StreamChatTheme.of(context).colorTheme.accentRed,
+            color: StreamChatTheme.of(context).colorTheme.accentError,
           ),
       leading: Padding(
         padding: const EdgeInsets.symmetric(horizontal: 22.0),
         child: StreamSvgIcon.delete(
-          color: StreamChatTheme.of(context).colorTheme.accentRed,
+          color: StreamChatTheme.of(context).colorTheme.accentError,
           size: 24.0,
         ),
       ),
       onTap: () {
         _showDeleteDialog();
       },
-      titleColor: StreamChatTheme.of(context).colorTheme.accentRed,
+      titleColor: StreamChatTheme.of(context).colorTheme.accentError,
     );
   }
 
@@ -343,7 +421,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
       question: 'Are you sure you want to delete this conversation?',
       cancelText: 'CANCEL',
       icon: StreamSvgIcon.delete(
-        color: StreamChatTheme.of(context).colorTheme.accentRed,
+        color: StreamChatTheme.of(context).colorTheme.accentError,
       ),
     );
     var channel = StreamChannel.of(context).channel;
@@ -367,7 +445,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
           style: TextStyle(
               color: StreamChatTheme.of(context)
                   .colorTheme
-                  .black
+                  .textHighEmphasis
                   .withOpacity(0.5)),
         );
       } else {
@@ -376,7 +454,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
           style: TextStyle(
               color: StreamChatTheme.of(context)
                   .colorTheme
-                  .black
+                  .textHighEmphasis
                   .withOpacity(0.5)),
         );
       }
@@ -385,7 +463,7 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
     return Row(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
-        if (widget.user.online)
+        if (widget.user!.online)
           Material(
             type: MaterialType.circle,
             child: Container(
@@ -396,13 +474,13 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
               ),
               child: Material(
                 shape: CircleBorder(),
-                color: StreamChatTheme.of(context).colorTheme.accentGreen,
+                color: StreamChatTheme.of(context).colorTheme.accentInfo,
               ),
             ),
-            color: StreamChatTheme.of(context).colorTheme.white,
+            color: StreamChatTheme.of(context).colorTheme.barsBg,
           ),
         alternativeWidget,
-        if (widget.user.online)
+        if (widget.user!.online)
           SizedBox(
             width: 24.0,
           ),
@@ -412,8 +490,8 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
 }
 
 class _SharedGroupsScreen extends StatefulWidget {
-  final User mainUser;
-  final User otherUser;
+  final User? mainUser;
+  final User? otherUser;
 
   _SharedGroupsScreen(this.mainUser, this.otherUser);
 
@@ -427,7 +505,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
     var chat = StreamChat.of(context);
 
     return Scaffold(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
       appBar: AppBar(
         brightness: Theme.of(context).brightness,
         elevation: 1,
@@ -435,28 +513,18 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
         title: Text(
           'Shared Groups',
           style: TextStyle(
-              color: StreamChatTheme.of(context).colorTheme.black,
+              color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
               fontSize: 16.0),
         ),
         leading: StreamBackButton(),
-        backgroundColor: StreamChatTheme.of(context).colorTheme.white,
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       ),
       body: StreamBuilder<List<Channel>>(
         stream: chat.client.queryChannels(
-          filter: {
-            r'$and': [
-              {
-                'members': {
-                  r'$in': [widget.otherUser.id],
-                },
-              },
-              {
-                'members': {
-                  r'$in': [widget.mainUser.id],
-                },
-              }
-            ],
-          },
+          filter: Filter.and([
+            Filter.in_('members', [widget.otherUser!.id]),
+            Filter.in_('members', [widget.mainUser!.id]),
+          ]),
         ),
         builder: (context, snapshot) {
           if (!snapshot.hasData) {
@@ -465,21 +533,23 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
             );
           }
 
-          if (snapshot.data.isEmpty) {
+          if (snapshot.data!.isEmpty) {
             return Center(
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.center,
                 children: [
                   StreamSvgIcon.message(
                     size: 136.0,
-                    color: StreamChatTheme.of(context).colorTheme.greyGainsboro,
+                    color: StreamChatTheme.of(context).colorTheme.disabled,
                   ),
                   SizedBox(height: 16.0),
                   Text(
                     'No Shared Groups',
                     style: TextStyle(
                       fontSize: 14.0,
-                      color: StreamChatTheme.of(context).colorTheme.black,
+                      color: StreamChatTheme.of(context)
+                          .colorTheme
+                          .textHighEmphasis,
                     ),
                   ),
                   SizedBox(height: 8.0),
@@ -490,7 +560,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
                       fontSize: 14.0,
                       color: StreamChatTheme.of(context)
                           .colorTheme
-                          .black
+                          .textHighEmphasis
                           .withOpacity(0.5),
                     ),
                   ),
@@ -499,11 +569,11 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
             );
           }
 
-          final channels = snapshot.data
+          final channels = snapshot.data!
               .where((c) =>
-                  c.state.members.any((m) =>
-                      m.userId != widget.mainUser.id &&
-                      m.userId != widget.otherUser.id) ||
+                  c.state!.members.any((m) =>
+                      m.userId != widget.mainUser!.id &&
+                      m.userId != widget.otherUser!.id) ||
                   !c.isDistinct)
               .toList();
 
@@ -523,24 +593,24 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
 
   Widget _buildListTile(Channel channel) {
     var extraData = channel.extraData;
-    var members = channel.state.members;
+    var members = channel.state!.members;
 
     var textStyle = TextStyle(fontSize: 14.0, fontWeight: FontWeight.bold);
 
     return Container(
       height: 64.0,
       child: LayoutBuilder(builder: (context, constraints) {
-        String title;
+        String? title;
         if (extraData['name'] == null) {
           final otherMembers = members.where(
-              (member) => member.userId != StreamChat.of(context).user.id);
+              (member) => member.userId != StreamChat.of(context).user!.id);
           if (otherMembers.isNotEmpty) {
             final maxWidth = constraints.maxWidth;
-            final maxChars = maxWidth / textStyle.fontSize;
+            final maxChars = maxWidth / textStyle.fontSize!;
             var currentChars = 0;
             final currentMembers = <Member>[];
             otherMembers.forEach((element) {
-              final newLength = currentChars + element.user.name.length;
+              final newLength = currentChars + element.user!.name.length;
               if (newLength < maxChars) {
                 currentChars = newLength;
                 currentMembers.add(element);
@@ -550,12 +620,12 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
             final exceedingMembers =
                 otherMembers.length - currentMembers.length;
             title =
-                '${currentMembers.map((e) => e.user.name).join(', ')} ${exceedingMembers > 0 ? '+ $exceedingMembers' : ''}';
+                '${currentMembers.map((e) => e.user!.name).join(', ')} ${exceedingMembers > 0 ? '+ $exceedingMembers' : ''}';
           } else {
             title = 'No title';
           }
         } else {
-          title = extraData['name'];
+          title = extraData['name'] as String;
         }
 
         return Column(
@@ -565,7 +635,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
                 children: [
                   Padding(
                     padding: const EdgeInsets.all(8.0),
-                    child: ChannelImage(
+                    child: ChannelAvatar(
                       channel: channel,
                       constraints:
                           BoxConstraints(maxWidth: 40.0, maxHeight: 40.0),
@@ -583,7 +653,7 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
                       style: TextStyle(
                           color: StreamChatTheme.of(context)
                               .colorTheme
-                              .black
+                              .textHighEmphasis
                               .withOpacity(0.5)),
                     ),
                   )
@@ -592,8 +662,10 @@ class __SharedGroupsScreenState extends State<_SharedGroupsScreen> {
             ),
             Container(
               height: 1.0,
-              color:
-                  StreamChatTheme.of(context).colorTheme.black.withOpacity(.08),
+              color: StreamChatTheme.of(context)
+                  .colorTheme
+                  .textHighEmphasis
+                  .withOpacity(.08),
             ),
           ],
         );

packages/stream_chat_v1/lib/chips_input_text_field.dart

@@ -6,18 +6,18 @@ typedef OnChipAdded<T> = void Function(T chip);
 typedef OnChipRemoved<T> = void Function(T chip);
 
 class ChipsInputTextField<T> extends StatefulWidget {
-  final TextEditingController controller;
-  final FocusNode focusNode;
-  final ValueChanged<String> onInputChanged;
+  final TextEditingController? controller;
+  final FocusNode? focusNode;
+  final ValueChanged<String>? onInputChanged;
   final ChipBuilder<T> chipBuilder;
-  final OnChipAdded<T> onChipAdded;
-  final OnChipRemoved<T> onChipRemoved;
+  final OnChipAdded<T>? onChipAdded;
+  final OnChipRemoved<T>? onChipRemoved;
   final String hint;
 
   const ChipsInputTextField({
-    Key key,
-    @required this.chipBuilder,
-    @required this.controller,
+    Key? key,
+    required this.chipBuilder,
+    required this.controller,
     this.onInputChanged,
     this.focusNode,
     this.onChipAdded,
@@ -35,7 +35,7 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
 
   void addItem(T item) {
     setState(() => _chips.add(item));
-    if (widget.onChipAdded != null) widget.onChipAdded(item);
+    if (widget.onChipAdded != null) widget.onChipAdded!(item);
   }
 
   void removeItem(T item) {
@@ -43,7 +43,7 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
       _chips.remove(item);
       if (_chips.isEmpty) resumeItemAddition();
     });
-    if (widget.onChipRemoved != null) widget.onChipRemoved(item);
+    if (widget.onChipRemoved != null) widget.onChipRemoved!(item);
   }
 
   void pauseItemAddition() {
@@ -66,7 +66,7 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
       onTap: _pauseItemAddition ? resumeItemAddition : null,
       child: Material(
         elevation: 1,
-        color: StreamChatTheme.of(context).colorTheme.white,
+        color: StreamChatTheme.of(context).colorTheme.barsBg,
         child: Container(
           child: Padding(
             padding: const EdgeInsets.fromLTRB(16, 16, 16, 16),
@@ -82,7 +82,7 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
                         .copyWith(
                             color: StreamChatTheme.of(context)
                                 .colorTheme
-                                .black
+                                .textHighEmphasis
                                 .withOpacity(.5)),
                   ),
                 ),
@@ -119,7 +119,7 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
                                 .copyWith(
                                     color: StreamChatTheme.of(context)
                                         .colorTheme
-                                        .black
+                                        .textHighEmphasis
                                         .withOpacity(.5)),
                           ),
                         ),
@@ -134,14 +134,14 @@ class ChipInputTextFieldState<T> extends State<ChipsInputTextField<T>> {
                         ? StreamSvgIcon.user(
                             color: StreamChatTheme.of(context)
                                 .colorTheme
-                                .black
+                                .textHighEmphasis
                                 .withOpacity(0.5),
                             size: 24,
                           )
                         : StreamSvgIcon.userAdd(
                             color: StreamChatTheme.of(context)
                                 .colorTheme
-                                .black
+                                .textHighEmphasis
                                 .withOpacity(0.5),
                             size: 24,
                           ),

packages/stream_chat_v1/lib/choose_user_page.dart

@@ -1,4 +1,5 @@
 import 'package:example/app_config.dart';
+import 'package:example/home_page.dart';
 import 'package:example/stream_version.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
@@ -18,7 +19,7 @@ class ChooseUserPage extends StatelessWidget {
     final users = defaultUsers;
 
     return Scaffold(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
       body: SafeArea(
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.center,
@@ -32,7 +33,7 @@ class ChooseUserPage extends StatelessWidget {
                 child: SvgPicture.asset(
                   'assets/logo.svg',
                   height: 40,
-                  color: StreamChatTheme.of(context).colorTheme.accentBlue,
+                  color: StreamChatTheme.of(context).colorTheme.accentPrimary,
                 ),
               ),
             ),
@@ -54,7 +55,7 @@ class ChooseUserPage extends StatelessWidget {
                   separatorBuilder: (context, i) {
                     return Container(
                       height: 1,
-                      color: StreamChatTheme.of(context).colorTheme.greyWhisper,
+                      color: StreamChatTheme.of(context).colorTheme.borders,
                     );
                   },
                   itemCount: users.length + 1,
@@ -78,7 +79,7 @@ class ChooseUserPage extends StatelessWidget {
                                     borderRadius: BorderRadius.circular(16),
                                     color: StreamChatTheme.of(context)
                                         .colorTheme
-                                        .white,
+                                        .barsBg,
                                   ),
                                   height: 100,
                                   width: 100,
@@ -89,8 +90,11 @@ class ChooseUserPage extends StatelessWidget {
                               ),
                             );
 
-                            final client = StreamChat.of(context).client;
-                            client.apiKey = kDefaultStreamApiKey;
+                            final client = StreamChatClient(
+                              kDefaultStreamApiKey,
+                              logLevel: Level.INFO,
+                            );
+
                             await client.connectUser(
                               user,
                               token,
@@ -115,6 +119,7 @@ class ChooseUserPage extends StatelessWidget {
                               context,
                               Routes.HOME,
                               ModalRoute.withName(Routes.HOME),
+                              arguments: HomePageArgs(client),
                             );
                           },
                           leading: UserAvatar(
@@ -136,13 +141,13 @@ class ChooseUserPage extends StatelessWidget {
                                 .copyWith(
                                   color: StreamChatTheme.of(context)
                                       .colorTheme
-                                      .grey,
+                                      .textLowEmphasis,
                                 ),
                           ),
                           trailing: StreamSvgIcon.arrowRight(
                             color: StreamChatTheme.of(context)
                                 .colorTheme
-                                .accentBlue,
+                                .accentPrimary,
                           ),
                         );
                       }),
@@ -152,11 +157,12 @@ class ChooseUserPage extends StatelessWidget {
                         },
                         leading: CircleAvatar(
                           child: StreamSvgIcon.settings(
-                            color: StreamChatTheme.of(context).colorTheme.black,
+                            color: StreamChatTheme.of(context)
+                                .colorTheme
+                                .textHighEmphasis,
                           ),
-                          backgroundColor: StreamChatTheme.of(context)
-                              .colorTheme
-                              .greyWhisper,
+                          backgroundColor:
+                              StreamChatTheme.of(context).colorTheme.borders,
                         ),
                         title: Text(
                           'Advanced Options',
@@ -168,8 +174,9 @@ class ChooseUserPage extends StatelessWidget {
                               .textTheme
                               .footnote
                               .copyWith(
-                                color:
-                                    StreamChatTheme.of(context).colorTheme.grey,
+                                color: StreamChatTheme.of(context)
+                                    .colorTheme
+                                    .textLowEmphasis,
                               ),
                         ),
                         trailing: SvgPicture.asset(

packages/stream_chat_v1/lib/group_chat_details_screen.dart

@@ -2,15 +2,15 @@ import 'package:flutter/material.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 import 'package:uuid/uuid.dart';
 
-import 'main.dart';
+import 'channel_page.dart';
 import 'routes/routes.dart';
 
 class GroupChatDetailsScreen extends StatefulWidget {
-  final List<User> selectedUsers;
+  final List<User>? selectedUsers;
 
   const GroupChatDetailsScreen({
-    Key key,
-    @required this.selectedUsers,
+    Key? key,
+    required this.selectedUsers,
   }) : super(key: key);
 
   @override
@@ -20,14 +20,14 @@ class GroupChatDetailsScreen extends StatefulWidget {
 class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
   final _selectedUsers = <User>[];
 
-  TextEditingController _groupNameController;
+  TextEditingController? _groupNameController;
 
   bool _isGroupNameEmpty = true;
 
   int get _totalUsers => _selectedUsers.length;
 
   void _groupNameListener() {
-    final name = _groupNameController.text;
+    final name = _groupNameController!.text;
     if (mounted) {
       setState(() {
         _isGroupNameEmpty = name.isEmpty;
@@ -38,7 +38,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
   @override
   void initState() {
     super.initState();
-    _selectedUsers.addAll(widget.selectedUsers);
+    _selectedUsers.addAll(widget.selectedUsers!);
     _groupNameController = TextEditingController()
       ..addListener(_groupNameListener);
   }
@@ -59,16 +59,16 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
         return false;
       },
       child: Scaffold(
-        backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+        backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
         appBar: AppBar(
           brightness: Theme.of(context).brightness,
           elevation: 1,
-          backgroundColor: StreamChatTheme.of(context).colorTheme.white,
+          backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
           leading: const StreamBackButton(),
           title: Text(
             'Name of Group Chat',
             style: TextStyle(
-              color: StreamChatTheme.of(context).colorTheme.black,
+              color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
               fontSize: 16,
             ),
           ),
@@ -83,7 +83,9 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                     'NAME',
                     style: TextStyle(
                       fontSize: 12,
-                      color: StreamChatTheme.of(context).colorTheme.grey,
+                      color: StreamChatTheme.of(context)
+                          .colorTheme
+                          .textLowEmphasis,
                     ),
                   ),
                   SizedBox(width: 16),
@@ -101,7 +103,9 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                         hintText: 'Choose a group chat name',
                         hintStyle: TextStyle(
                           fontSize: 14,
-                          color: StreamChatTheme.of(context).colorTheme.grey,
+                          color: StreamChatTheme.of(context)
+                              .colorTheme
+                              .textLowEmphasis,
                         ),
                       ),
                     ),
@@ -117,20 +121,20 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                 icon: StreamSvgIcon.check(
                   size: 24,
                   color: _isGroupNameEmpty
-                      ? StreamChatTheme.of(context).colorTheme.grey
-                      : StreamChatTheme.of(context).colorTheme.accentBlue,
+                      ? StreamChatTheme.of(context).colorTheme.textLowEmphasis
+                      : StreamChatTheme.of(context).colorTheme.accentPrimary,
                 ),
                 onPressed: _isGroupNameEmpty
                     ? null
                     : () async {
                         try {
-                          final groupName = _groupNameController.text;
+                          final groupName = _groupNameController!.text;
                           final client = StreamChat.of(context).client;
                           final channel = client.channel('messaging',
                               id: Uuid().v4(),
                               extraData: {
                                 'members': [
-                                  client.state.user.id,
+                                  client.state.user!.id,
                                   ..._selectedUsers.map((e) => e.id),
                                 ],
                                 'name': groupName,
@@ -188,7 +192,9 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                       child: Text(
                         '$_totalUsers ${_totalUsers > 1 ? 'Members' : 'Member'}',
                         style: TextStyle(
-                          color: StreamChatTheme.of(context).colorTheme.grey,
+                          color: StreamChatTheme.of(context)
+                              .colorTheme
+                              .textLowEmphasis,
                         ),
                       ),
                     ),
@@ -201,9 +207,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                         itemCount: _selectedUsers.length + 1,
                         separatorBuilder: (_, __) => Container(
                           height: 1,
-                          color: StreamChatTheme.of(context)
-                              .colorTheme
-                              .greyWhisper,
+                          color: StreamChatTheme.of(context).colorTheme.borders,
                         ),
                         itemBuilder: (_, index) {
                           if (index == _selectedUsers.length) {
@@ -211,7 +215,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                               height: 1,
                               color: StreamChatTheme.of(context)
                                   .colorTheme
-                                  .greyWhisper,
+                                  .borders,
                             );
                           }
                           final user = _selectedUsers[index];
@@ -237,7 +241,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                                 Icons.clear_rounded,
                                 color: StreamChatTheme.of(context)
                                     .colorTheme
-                                    .black,
+                                    .textHighEmphasis,
                               ),
                               padding: const EdgeInsets.all(0),
                               splashRadius: 24,
@@ -266,7 +270,8 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
 
   void _showErrorAlert() {
     showModalBottomSheet(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.white,
+      useRootNavigator: false,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
       context: context,
       shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.only(
@@ -281,7 +286,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
               height: 26.0,
             ),
             StreamSvgIcon.error(
-              color: StreamChatTheme.of(context).colorTheme.accentRed,
+              color: StreamChatTheme.of(context).colorTheme.accentError,
               size: 24.0,
             ),
             SizedBox(
@@ -299,14 +304,16 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
               height: 36.0,
             ),
             Container(
-              color:
-                  StreamChatTheme.of(context).colorTheme.black.withOpacity(.08),
+              color: StreamChatTheme.of(context)
+                  .colorTheme
+                  .textHighEmphasis
+                  .withOpacity(.08),
               height: 1.0,
             ),
             Row(
               mainAxisAlignment: MainAxisAlignment.center,
               children: [
-                FlatButton(
+                TextButton(
                   child: Text(
                     'OK',
                     style: StreamChatTheme.of(context)
@@ -315,7 +322,7 @@ class _GroupChatDetailsScreenState extends State<GroupChatDetailsScreen> {
                         .copyWith(
                             color: StreamChatTheme.of(context)
                                 .colorTheme
-                                .accentBlue),
+                                .accentPrimary),
                   ),
                   onPressed: () {
                     Navigator.of(context).pop();

packages/stream_chat_v1/lib/home_page.dart

@@ -0,0 +1,45 @@
+import 'package:example/routes/app_routes.dart';
+import 'package:example/routes/routes.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class HomePageArgs {
+  final StreamChatClient chatClient;
+
+  HomePageArgs(this.chatClient);
+}
+
+class HomePage extends StatefulWidget {
+  HomePage({
+    Key? key,
+    required this.chatClient,
+  }) : super(key: key);
+
+  final StreamChatClient chatClient;
+
+  @override
+  _HomePageState createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  final GlobalKey<NavigatorState> _navigatorKey = GlobalKey();
+
+  @override
+  Widget build(BuildContext context) {
+    return StreamChat(
+      client: widget.chatClient,
+      child: WillPopScope(
+        onWillPop: () async {
+          final canPop = await _navigatorKey.currentState?.maybePop() ?? false;
+          return !canPop;
+        },
+        child: Navigator(
+          key: _navigatorKey,
+          onGenerateRoute: AppRoutes.generateRoute,
+          initialRoute: Routes.CHANNEL_LIST_PAGE,
+        ),
+      ),
+    );
+  }
+}

packages/stream_chat_v1/lib/new_chat_screen.dart

@@ -3,8 +3,8 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
+import 'channel_page.dart';
 import 'chips_input_text_field.dart';
-import 'main.dart';
 import 'routes/routes.dart';
 
 class NewChatScreen extends StatefulWidget {
@@ -16,9 +16,9 @@ class _NewChatScreenState extends State<NewChatScreen> {
   final _chipInputTextFieldStateKey =
       GlobalKey<ChipInputTextFieldState<User>>();
 
-  TextEditingController _controller;
+  late TextEditingController _controller;
 
-  ChipInputTextFieldState get _chipInputTextFieldState =>
+  ChipInputTextFieldState? get _chipInputTextFieldState =>
       _chipInputTextFieldStateKey.currentState;
 
   String _userNameQuery = '';
@@ -30,14 +30,14 @@ class _NewChatScreenState extends State<NewChatScreen> {
 
   bool _isSearchActive = false;
 
-  Channel channel;
+  Channel? channel;
 
-  Timer _debounce;
+  Timer? _debounce;
 
   bool _showUserList = true;
 
   void _userNameListener() {
-    if (_debounce?.isActive ?? false) _debounce.cancel();
+    if (_debounce?.isActive ?? false) _debounce!.cancel();
     _debounce = Timer(const Duration(milliseconds: 350), () {
       if (mounted)
         setState(() {
@@ -66,17 +66,15 @@ class _NewChatScreenState extends State<NewChatScreen> {
         final chatState = StreamChat.of(context);
 
         final res = await chatState.client.queryChannelsOnline(
-          options: {
-            'state': false,
-            'watch': false,
-          },
-          filter: {
+          state: false,
+          watch: false,
+          filter: Filter.raw(value: {
             'members': [
               ..._selectedUsers.map((e) => e.id),
-              chatState.user.id,
+              chatState.user!.id,
             ],
             'distinct': true,
-          },
+          }),
           messageLimit: 0,
           paginationParams: PaginationParams(
             limit: 1,
@@ -86,14 +84,14 @@ class _NewChatScreenState extends State<NewChatScreen> {
         final _channelExisted = res.length == 1;
         if (_channelExisted) {
           channel = res.first;
-          await channel.watch();
+          await channel!.watch();
         } else {
           channel = chatState.client.channel(
             'messaging',
             extraData: {
               'members': [
                 ..._selectedUsers.map((e) => e.id),
-                chatState.user.id,
+                chatState.user!.id,
               ],
             },
           );
@@ -110,27 +108,25 @@ class _NewChatScreenState extends State<NewChatScreen> {
   void dispose() {
     _searchFocusNode.dispose();
     _messageInputFocusNode.dispose();
-    _controller?.clear();
-    _controller?.removeListener(_userNameListener);
-    _controller?.dispose();
+    _controller.clear();
+    _controller.removeListener(_userNameListener);
+    _controller.dispose();
     super.dispose();
   }
 
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
       appBar: AppBar(
         brightness: Theme.of(context).brightness,
         elevation: 0,
-        backgroundColor: StreamChatTheme.of(context).colorTheme.white,
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
         leading: const StreamBackButton(),
         title: Text(
           'New Chat',
-          style: StreamChatTheme.of(context)
-              .textTheme
-              .headlineBold
-              .copyWith(color: StreamChatTheme.of(context).colorTheme.black),
+          style: StreamChatTheme.of(context).textTheme.headlineBold.copyWith(
+              color: StreamChatTheme.of(context).colorTheme.textHighEmphasis),
         ),
         centerTitle: true,
       ),
@@ -158,7 +154,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
             message: statusString,
             child: StreamChannel(
               showLoading: false,
-              channel: channel,
+              channel: channel!,
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
@@ -169,7 +165,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                     chipBuilder: (context, user) {
                       return GestureDetector(
                         onTap: () {
-                          _chipInputTextFieldState.removeItem(user);
+                          _chipInputTextFieldState?.removeItem(user);
                           _searchFocusNode.requestFocus();
                         },
                         child: Stack(
@@ -179,7 +175,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                               decoration: BoxDecoration(
                                 color: StreamChatTheme.of(context)
                                     .colorTheme
-                                    .greyGainsboro,
+                                    .disabled,
                                 borderRadius: BorderRadius.circular(12),
                               ),
                               padding: const EdgeInsets.only(left: 24),
@@ -191,7 +187,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                   style: TextStyle(
                                     color: StreamChatTheme.of(context)
                                         .colorTheme
-                                        .black,
+                                        .textHighEmphasis,
                                   ),
                                 ),
                               ),
@@ -242,7 +238,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                   child: StreamSvgIcon.contacts(
                                     color: StreamChatTheme.of(context)
                                         .colorTheme
-                                        .accentBlue,
+                                        .accentPrimary,
                                     size: 24,
                                   ),
                                 ),
@@ -281,7 +277,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                 .copyWith(
                                     color: StreamChatTheme.of(context)
                                         .colorTheme
-                                        .black
+                                        .textHighEmphasis
                                         .withOpacity(.5))),
                       ),
                     ),
@@ -299,24 +295,21 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                   _controller.clear();
                                   if (!_selectedUsers.contains(user)) {
                                     _chipInputTextFieldState
-                                      ..addItem(user)
+                                      ?..addItem(user)
                                       ..pauseItemAddition();
                                   } else {
-                                    _chipInputTextFieldState.removeItem(user);
+                                    _chipInputTextFieldState!.removeItem(user);
                                   }
                                 },
                                 pagination: PaginationParams(
                                   limit: 25,
                                 ),
-                                filter: {
+                                filter: Filter.and([
                                   if (_userNameQuery.isNotEmpty)
-                                    'name': {
-                                      r'$autocomplete': _userNameQuery,
-                                    },
-                                  'id': {
-                                    r'$ne': StreamChat.of(context).user.id,
-                                  },
-                                },
+                                    Filter.autoComplete('name', _userNameQuery),
+                                  Filter.notEqual(
+                                      'id', StreamChat.of(context).user!.id),
+                                ]),
                                 sort: [
                                   SortOption(
                                     'name',
@@ -355,7 +348,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                                           color: StreamChatTheme
                                                                   .of(context)
                                                               .colorTheme
-                                                              .black
+                                                              .textHighEmphasis
                                                               .withOpacity(.5)),
                                                 ),
                                               ],
@@ -370,7 +363,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                             ),
                           )
                         : FutureBuilder<bool>(
-                            future: channel.initialized,
+                            future: channel!.initialized,
                             builder: (context, snapshot) {
                               if (snapshot.data == true) {
                                 return MessageListView();
@@ -383,7 +376,7 @@ class _NewChatScreenState extends State<NewChatScreen> {
                                     fontSize: 12,
                                     color: StreamChatTheme.of(context)
                                         .colorTheme
-                                        .black
+                                        .textHighEmphasis
                                         .withOpacity(.5),
                                   ),
                                 ),
@@ -394,14 +387,14 @@ class _NewChatScreenState extends State<NewChatScreen> {
                   MessageInput(
                     focusNode: _messageInputFocusNode,
                     preMessageSending: (message) async {
-                      await channel.watch();
+                      await channel!.watch();
                       return message;
                     },
                     onMessageSent: (m) {
                       Navigator.pushNamedAndRemoveUntil(
                         context,
                         Routes.CHANNEL_PAGE,
-                        ModalRoute.withName(Routes.HOME),
+                        ModalRoute.withName(Routes.CHANNEL_LIST_PAGE),
                         arguments: ChannelPageArgs(channel: channel),
                       );
                     },

packages/stream_chat_v1/lib/new_group_chat_screen.dart

@@ -12,7 +12,7 @@ class NewGroupChatScreen extends StatefulWidget {
 }
 
 class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
-  TextEditingController _controller;
+  TextEditingController? _controller;
 
   String _userNameQuery = '';
 
@@ -20,14 +20,14 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
 
   bool _isSearchActive = false;
 
-  Timer _debounce;
+  Timer? _debounce;
 
   void _userNameListener() {
-    if (_debounce?.isActive ?? false) _debounce.cancel();
+    if (_debounce?.isActive ?? false) _debounce!.cancel();
     _debounce = Timer(const Duration(milliseconds: 350), () {
       if (mounted) {
         setState(() {
-          _userNameQuery = _controller.text;
+          _userNameQuery = _controller!.text;
           _isSearchActive = _userNameQuery.isNotEmpty;
         });
       }
@@ -51,15 +51,15 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
       appBar: AppBar(
         elevation: 1,
-        backgroundColor: StreamChatTheme.of(context).colorTheme.white,
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
         leading: const StreamBackButton(),
         title: Text(
           'Add Group Members',
           style: TextStyle(
-            color: StreamChatTheme.of(context).colorTheme.black,
+            color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
             fontSize: 16,
           ),
         ),
@@ -68,7 +68,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
           if (_selectedUsers.isNotEmpty)
             IconButton(
               icon: StreamSvgIcon.arrowRight(
-                color: StreamChatTheme.of(context).colorTheme.accentBlue,
+                color: StreamChatTheme.of(context).colorTheme.accentPrimary,
               ),
               onPressed: () async {
                 final updatedList = await Navigator.pushNamed(
@@ -80,7 +80,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                   setState(() {
                     _selectedUsers
                       ..clear()
-                      ..addAll(updatedList);
+                      ..addAll(updatedList as Iterable<User>);
                   });
                 }
               },
@@ -159,18 +159,18 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                                           decoration: BoxDecoration(
                                             color: StreamChatTheme.of(context)
                                                 .colorTheme
-                                                .white,
+                                                .appBg,
                                             shape: BoxShape.circle,
                                             border: Border.all(
                                               color: StreamChatTheme.of(context)
                                                   .colorTheme
-                                                  .whiteSnow,
+                                                  .appBg,
                                             ),
                                           ),
                                           child: StreamSvgIcon.close(
                                             color: StreamChatTheme.of(context)
                                                 .colorTheme
-                                                .black,
+                                                .textHighEmphasis,
                                             size: 24,
                                           ),
                                         ),
@@ -212,8 +212,9 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                                 ? 'Matches for \"$_userNameQuery\"'
                                 : 'On the platform',
                             style: TextStyle(
-                              color:
-                                  StreamChatTheme.of(context).colorTheme.grey,
+                              color: StreamChatTheme.of(context)
+                                  .colorTheme
+                                  .textLowEmphasis,
                             ),
                           ),
                         ),
@@ -244,15 +245,11 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                     pagination: PaginationParams(
                       limit: 25,
                     ),
-                    filter: {
+                    filter: Filter.and([
                       if (_userNameQuery.isNotEmpty)
-                        'name': {
-                          r'$autocomplete': _userNameQuery,
-                        },
-                      'id': {
-                        r'$ne': StreamChat.of(context).user.id,
-                      }
-                    },
+                        Filter.autoComplete('name', _userNameQuery),
+                      Filter.notEqual('id', StreamChat.of(context).user!.id),
+                    ]),
                     sort: [
                       SortOption(
                         'name',
@@ -277,7 +274,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                                         size: 96,
                                         color: StreamChatTheme.of(context)
                                             .colorTheme
-                                            .grey,
+                                            .textLowEmphasis,
                                       ),
                                     ),
                                     Text(
@@ -288,7 +285,7 @@ class _NewGroupChatScreenState extends State<NewGroupChatScreen> {
                                           .copyWith(
                                             color: StreamChatTheme.of(context)
                                                 .colorTheme
-                                                .grey,
+                                                .textLowEmphasis,
                                           ),
                                     ),
                                   ],
@@ -315,15 +312,15 @@ class _HeaderDelegate extends SliverPersistentHeaderDelegate {
   final double height;
 
   const _HeaderDelegate({
-    @required this.child,
-    @required this.height,
+    required this.child,
+    required this.height,
   });
 
   @override
   Widget build(
       BuildContext context, double shrinkOffset, bool overlapsContent) {
     return Container(
-      color: StreamChatTheme.of(context).colorTheme.white,
+      color: StreamChatTheme.of(context).colorTheme.barsBg,
       child: child,
     );
   }

packages/stream_chat_v1/lib/notifications_service.dart

@@ -7,7 +7,7 @@ void showLocalNotification(Event event, String currentUserId) async {
         EventType.messageNew,
         EventType.notificationMessageNew,
       ].contains(event.type) ||
-      event.user.id == currentUserId) {
+      event.user!.id == currentUserId) {
     return;
   }
   if (event.message == null) return;
@@ -21,9 +21,9 @@ void showLocalNotification(Event event, String currentUserId) async {
   );
   await flutterLocalNotificationsPlugin.initialize(initializationSettings);
   await flutterLocalNotificationsPlugin.show(
-    event.message.id.hashCode,
-    event.message.user.name,
-    event.message.text,
+    event.message!.id.hashCode,
+    event.message!.user!.name,
+    event.message!.text,
     NotificationDetails(
       android: AndroidNotificationDetails(
         'message channel',

packages/stream_chat_v1/lib/pinned_messages_screen.dart

@@ -0,0 +1,213 @@
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+import 'package:video_player/video_player.dart';
+
+class PinnedMessagesScreen extends StatefulWidget {
+  /// The sorting used for the channels matching the filters.
+  /// Sorting is based on field and direction, multiple sorting options can be provided.
+  /// You can sort based on last_updated, last_message_at, updated_at, created_at or member_count.
+  /// Direction can be ascending or descending.
+  final List<SortOption>? sortOptions;
+
+  /// Pagination parameters
+  /// limit: the number of users to return (max is 30)
+  /// offset: the offset (max is 1000)
+  /// message_limit: how many messages should be included to each channel
+  final PaginationParams? paginationParams;
+
+  /// The builder used when the file list is empty.
+  final WidgetBuilder? emptyBuilder;
+
+  final ShowMessageCallback? onShowMessage;
+
+  final MessageTheme messageTheme;
+
+  const PinnedMessagesScreen({
+    required this.messageTheme,
+    this.sortOptions,
+    this.paginationParams,
+    this.emptyBuilder,
+    this.onShowMessage,
+  });
+
+  @override
+  _PinnedMessagesScreenState createState() => _PinnedMessagesScreenState();
+}
+
+class _PinnedMessagesScreenState extends State<PinnedMessagesScreen> {
+  Map<String?, VideoPlayerController?> controllerCache = {};
+
+  @override
+  void initState() {
+    super.initState();
+    final messageSearchBloc = MessageSearchBloc.of(context);
+    messageSearchBloc.search(
+      filter: Filter.in_(
+        'cid',
+        [StreamChannel.of(context).channel.cid!],
+      ),
+      messageFilter: Filter.equal(
+        'pinned',
+        true,
+      ),
+      sort: widget.sortOptions,
+      pagination: widget.paginationParams,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+      appBar: AppBar(
+        brightness: Theme.of(context).brightness,
+        elevation: 1,
+        centerTitle: true,
+        title: Text(
+          'Pinned Messages',
+          style: TextStyle(
+            color: StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+            fontSize: 16.0,
+          ),
+        ),
+        leading: StreamBackButton(),
+        backgroundColor: StreamChatTheme.of(context).colorTheme.barsBg,
+      ),
+      body: _buildMediaGrid(),
+    );
+  }
+
+  Widget _buildMediaGrid() {
+    final messageSearchBloc = MessageSearchBloc.of(context);
+
+    return StreamBuilder<List<GetMessageResponse>>(
+      builder: (context, snapshot) {
+        if (snapshot.data == null) {
+          return Center(
+            child: const CircularProgressIndicator(),
+          );
+        }
+
+        if (snapshot.data!.isEmpty) {
+          if (widget.emptyBuilder != null) {
+            return widget.emptyBuilder!(context);
+          }
+          return Center(
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                StreamSvgIcon.pin(
+                  size: 136.0,
+                  color: StreamChatTheme.of(context).colorTheme.disabled,
+                ),
+                SizedBox(height: 16.0),
+                Text(
+                  'No pinned items',
+                  style: TextStyle(
+                    fontSize: 17.0,
+                    color:
+                        StreamChatTheme.of(context).colorTheme.textHighEmphasis,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+                SizedBox(height: 8.0),
+                RichText(
+                  textAlign: TextAlign.center,
+                  text: TextSpan(children: [
+                    TextSpan(
+                      text: 'Long-press an important message and\nchoose ',
+                      style: TextStyle(
+                        fontSize: 14.0,
+                        color: StreamChatTheme.of(context)
+                            .colorTheme
+                            .textHighEmphasis
+                            .withOpacity(0.5),
+                      ),
+                    ),
+                    TextSpan(
+                      text: 'Pin to conversation',
+                      style: TextStyle(
+                        fontSize: 14.0,
+                        fontWeight: FontWeight.bold,
+                        color: StreamChatTheme.of(context)
+                            .colorTheme
+                            .textHighEmphasis
+                            .withOpacity(0.5),
+                      ),
+                    ),
+                  ]),
+                ),
+              ],
+            ),
+          );
+        }
+
+        var data = snapshot.data ?? [];
+
+        return LazyLoadScrollView(
+          onEndOfPage: () => messageSearchBloc.search(
+            filter: Filter.in_(
+              'cid',
+              [StreamChannel.of(context).channel.cid!],
+            ),
+            messageFilter: Filter.equal(
+              'pinned',
+              true,
+            ),
+            sort: widget.sortOptions,
+            pagination: widget.paginationParams!.copyWith(
+              offset: messageSearchBloc.messageResponses?.length ?? 0,
+            ),
+          ),
+          child: ListView.builder(
+            itemBuilder: (context, position) {
+              var user = data[position].message.user!;
+              var attachments = data[position].message.attachments;
+              var text = data[position].message.text ?? '';
+
+              return ListTile(
+                leading: UserAvatar(
+                  user: user,
+                  constraints: BoxConstraints(
+                    maxWidth: 40.0,
+                    minHeight: 40.0,
+                  ),
+                  borderRadius: BorderRadius.circular(28),
+                ),
+                title: Text(
+                  user.name,
+                  style: TextStyle(
+                      color: StreamChatTheme.of(context)
+                          .colorTheme
+                          .textHighEmphasis,
+                      fontWeight: FontWeight.bold),
+                ),
+                subtitle: Text(
+                  text != ''
+                      ? text
+                      : (attachments.isNotEmpty
+                          ? '${attachments.length} attachment${attachments.length > 1 ? 's' : ''}'
+                          : ''),
+                ),
+                onTap: () {
+                  widget.onShowMessage?.call(data[position].message,
+                      StreamChannel.of(context).channel);
+                },
+              );
+            },
+            itemCount: snapshot.data!.length,
+          ),
+        );
+      },
+      stream: messageSearchBloc.messagesStream,
+    );
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    for (var c in controllerCache.values) {
+      c!.dispose();
+    }
+  }
+}

packages/stream_chat_v1/lib/routes/app_routes.dart

@@ -1,18 +1,22 @@
-import 'routes.dart';
+import 'package:example/channel_list_page.dart';
 import 'package:flutter/material.dart';
-import '../choose_user_page.dart';
-import '../advanced_options_page.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
-import '../main.dart';
-import '../group_chat_details_screen.dart';
-import '../new_group_chat_screen.dart';
-import '../new_chat_screen.dart';
+
+import '../advanced_options_page.dart';
+import '../channel_page.dart';
 import '../chat_info_screen.dart';
+import '../choose_user_page.dart';
+import '../group_chat_details_screen.dart';
 import '../group_info_screen.dart';
+import '../home_page.dart';
+import '../main.dart';
+import '../new_chat_screen.dart';
+import '../new_group_chat_screen.dart';
+import 'routes.dart';
 
 class AppRoutes {
   /// Add entry for new route here
-  static Route<dynamic> generateRoute(RouteSettings settings) {
+  static Route<dynamic>? generateRoute(RouteSettings settings) {
     final args = settings.arguments;
     switch (settings.name) {
       case Routes.APP:
@@ -25,7 +29,10 @@ class AppRoutes {
         return MaterialPageRoute(
             settings: const RouteSettings(name: Routes.HOME),
             builder: (_) {
-              return HomePage();
+              final homePageArgs = args as HomePageArgs;
+              return HomePage(
+                chatClient: homePageArgs.chatClient,
+              );
             });
       case Routes.CHOOSE_USER:
         return MaterialPageRoute(
@@ -42,12 +49,13 @@ class AppRoutes {
         return MaterialPageRoute(
             settings: const RouteSettings(name: Routes.CHANNEL_PAGE),
             builder: (_) {
-              final arg = args as ChannelPageArgs;
+              final channelPageArgs = args as ChannelPageArgs;
               return StreamChannel(
-                channel: arg.channel,
-                initialMessageId: arg.initialMessage?.id,
+                channel: channelPageArgs.channel!,
+                initialMessageId: channelPageArgs.initialMessage?.id,
                 child: ChannelPage(
-                  highlightInitialMessage: arg.initialMessage != null,
+                  highlightInitialMessage:
+                      channelPageArgs.initialMessage != null,
                 ),
               );
             });
@@ -68,22 +76,31 @@ class AppRoutes {
             settings: const RouteSettings(name: Routes.NEW_GROUP_CHAT_DETAILS),
             builder: (_) {
               return GroupChatDetailsScreen(
-                selectedUsers: args,
+                selectedUsers: args as List<User>?,
               );
             });
       case Routes.CHAT_INFO_SCREEN:
         return MaterialPageRoute(
             settings: const RouteSettings(name: Routes.CHAT_INFO_SCREEN),
-            builder: (_) {
+            builder: (context) {
               return ChatInfoScreen(
-                user: args,
+                user: args as User?,
+                messageTheme: StreamChatTheme.of(context).ownMessageTheme,
               );
             });
       case Routes.GROUP_INFO_SCREEN:
         return MaterialPageRoute(
             settings: const RouteSettings(name: Routes.GROUP_INFO_SCREEN),
-            builder: (_) {
-              return GroupInfoScreen();
+            builder: (context) {
+              return GroupInfoScreen(
+                messageTheme: StreamChatTheme.of(context).ownMessageTheme,
+              );
+            });
+      case Routes.CHANNEL_LIST_PAGE:
+        return MaterialPageRoute(
+            settings: const RouteSettings(name: Routes.CHANNEL_LIST_PAGE),
+            builder: (context) {
+              return ChannelListPage();
             });
       // Default case, should not reach here.
       default:

packages/stream_chat_v1/lib/routes/routes.dart

@@ -10,4 +10,5 @@ class Routes {
   static const String NEW_GROUP_CHAT_DETAILS = '/new_group_chat_details';
   static const String CHAT_INFO_SCREEN = '/chat_info_screen';
   static const String GROUP_INFO_SCREEN = '/group_info_screen';
+  static const String CHANNEL_LIST_PAGE = '/channel_list_page';
 }

packages/stream_chat_v1/lib/search_text_field.dart

@@ -2,15 +2,15 @@ import 'package:flutter/material.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 class SearchTextField extends StatelessWidget {
-  final TextEditingController controller;
-  final ValueChanged<String> onChanged;
+  final TextEditingController? controller;
+  final ValueChanged<String>? onChanged;
   final String hintText;
-  final VoidCallback onTap;
+  final VoidCallback? onTap;
   final bool showCloseButton;
 
   const SearchTextField({
-    Key key,
-    @required this.controller,
+    Key? key,
+    required this.controller,
     this.onChanged,
     this.onTap,
     this.hintText = 'Search',
@@ -22,9 +22,9 @@ class SearchTextField extends StatelessWidget {
     return Container(
       height: 36,
       decoration: BoxDecoration(
-        color: StreamChatTheme.of(context).colorTheme.white,
+        color: StreamChatTheme.of(context).colorTheme.barsBg,
         border: Border.all(
-          color: StreamChatTheme.of(context).colorTheme.greyWhisper,
+          color: StreamChatTheme.of(context).colorTheme.borders,
         ),
         borderRadius: BorderRadius.circular(24),
       ),
@@ -48,7 +48,8 @@ class SearchTextField extends StatelessWidget {
                     right: 8,
                   ),
                   child: StreamSvgIcon.search(
-                    color: StreamChatTheme.of(context).colorTheme.black,
+                    color:
+                        StreamChatTheme.of(context).colorTheme.textHighEmphasis,
                     size: 24,
                   ),
                 ),
@@ -56,7 +57,7 @@ class SearchTextField extends StatelessWidget {
                 hintStyle: StreamChatTheme.of(context).textTheme.body.copyWith(
                     color: StreamChatTheme.of(context)
                         .colorTheme
-                        .black
+                        .textHighEmphasis
                         .withOpacity(.5)),
                 contentPadding: const EdgeInsets.all(0),
                 border: OutlineInputBorder(
@@ -76,11 +77,11 @@ class SearchTextField extends StatelessWidget {
                 ),
                 splashRadius: 24,
                 onPressed: () {
-                  if (controller.text.isNotEmpty) {
+                  if (controller!.text.isNotEmpty) {
                     Future.microtask(
                       () => [
-                        controller.clear(),
-                        if (onChanged != null) onChanged(''),
+                        controller!.clear(),
+                        if (onChanged != null) onChanged!(''),
                       ],
                     );
                   }

packages/stream_chat_v1/lib/splash_screen.dart

@@ -0,0 +1,122 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
+import 'package:lottie/lottie.dart';
+
+mixin SplashScreenStateMixin<T extends StatefulWidget> on State<T>
+    implements TickerProvider {
+  late Animation<double> animation, scaleAnimation;
+  late AnimationController _animationController, _scaleAnimationController;
+  late Animation<Color?> colorAnimation;
+  bool animationCompleted = false;
+
+  void _createAnimations() {
+    _scaleAnimationController = AnimationController(
+      vsync: this,
+      value: 0,
+      duration: Duration(
+        milliseconds: 500,
+      ),
+    );
+    scaleAnimation = Tween(
+      begin: 1.0,
+      end: 1.5,
+    ).animate(CurvedAnimation(
+      parent: _scaleAnimationController,
+      curve: Curves.easeInOutBack,
+    ));
+
+    _animationController = AnimationController(
+      vsync: this,
+      duration: Duration(
+        milliseconds: 1000,
+      ),
+    );
+    animation = Tween(
+      begin: 0.0,
+      end: 1000.0,
+    ).animate(CurvedAnimation(
+      parent: _animationController,
+      curve: Curves.easeInOut,
+    ));
+    colorAnimation = ColorTween(
+      begin: Color(0xff005FFF),
+      end: Color(0xff005FFF),
+    ).animate(CurvedAnimation(
+      parent: _animationController,
+      curve: Curves.easeInOut,
+    ));
+    colorAnimation = ColorTween(
+      begin: Color(0xff005FFF),
+      end: Colors.transparent,
+    ).animate(CurvedAnimation(
+      parent: _animationController,
+      curve: Curves.easeInOut,
+    ));
+  }
+
+  void forwardAnimations() {
+    _scaleAnimationController.forward().whenComplete(() {
+      _animationController.forward();
+    });
+  }
+
+  Widget buildAnimation() => Stack(
+        clipBehavior: Clip.none,
+        alignment: Alignment.center,
+        children: [
+          AnimatedBuilder(
+            animation: scaleAnimation,
+            builder: (context, _) {
+              return Transform.scale(
+                scale: scaleAnimation.value,
+                child: AnimatedBuilder(
+                    animation: colorAnimation,
+                    builder: (context, snapshot) {
+                      return Container(
+                        alignment: Alignment.center,
+                        constraints: BoxConstraints.expand(),
+                        color: colorAnimation.value,
+                        child: !_animationController.isAnimating
+                            ? Lottie.asset(
+                                'assets/floating_boat.json',
+                                alignment: Alignment.center,
+                              )
+                            : SizedBox(),
+                      );
+                    }),
+              );
+            },
+          ),
+          AnimatedBuilder(
+            animation: animation,
+            builder: (context, snapshot) {
+              return Transform.scale(
+                scale: animation.value,
+                child: Container(
+                  width: 1.0,
+                  height: 1.0,
+                  decoration: BoxDecoration(
+                    color: Colors.white
+                        .withOpacity(1 - _animationController.value),
+                    shape: BoxShape.circle,
+                  ),
+                ),
+              );
+            },
+          ),
+        ],
+      );
+
+  @override
+  void initState() {
+    _createAnimations();
+    _animationController.addStatusListener((status) {
+      if (status == AnimationStatus.completed) {
+        setState(() {
+          animationCompleted = true;
+        });
+      }
+    });
+    super.initState();
+  }
+}

packages/stream_chat_v1/lib/stream_version.dart

@@ -5,7 +5,7 @@ import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 class StreamVersion extends StatelessWidget {
   const StreamVersion({
-    Key key,
+    Key? key,
   }) : super(key: key);
 
   @override
@@ -20,16 +20,16 @@ class StreamVersion extends StatelessWidget {
             return SizedBox();
           }
 
-          final pubspec = snapshot.data;
+          final pubspec = snapshot.data!;
           final yaml = loadYaml(pubspec);
           final streamChatDep =
               yaml['packages']['stream_chat_flutter']['version'];
 
           return Text(
-            'Stream SDK v ${streamChatDep}',
+            'Stream SDK v $streamChatDep',
             style: TextStyle(
               fontSize: 14,
-              color: StreamChatTheme.of(context).colorTheme.greyGainsboro,
+              color: StreamChatTheme.of(context).colorTheme.disabled,
             ),
           );
         },

packages/stream_chat_v1/lib/thread_page.dart

@@ -0,0 +1,74 @@
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+class ThreadPage extends StatefulWidget {
+  final Message? parent;
+  final int? initialScrollIndex;
+  final double? initialAlignment;
+
+  ThreadPage({
+    Key? key,
+    this.parent,
+    this.initialScrollIndex,
+    this.initialAlignment,
+  }) : super(key: key);
+
+  @override
+  _ThreadPageState createState() => _ThreadPageState();
+}
+
+class _ThreadPageState extends State<ThreadPage> {
+  Message? _quotedMessage;
+  FocusNode _focusNode = FocusNode();
+
+  @override
+  void dispose() {
+    _focusNode.dispose();
+    super.dispose();
+  }
+
+  void _reply(Message message) {
+    setState(() => _quotedMessage = message);
+    WidgetsBinding.instance!.addPostFrameCallback((timeStamp) {
+      _focusNode.requestFocus();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: StreamChatTheme.of(context).colorTheme.appBg,
+      appBar: ThreadHeader(
+        parent: widget.parent!,
+      ),
+      body: Column(
+        children: <Widget>[
+          Expanded(
+            child: MessageListView(
+              parentMessage: widget.parent,
+              initialScrollIndex: widget.initialScrollIndex,
+              initialAlignment: widget.initialAlignment,
+              onMessageSwiped: _reply,
+              messageBuilder: (context, details, messages, defaultMessage) {
+                return defaultMessage.copyWith(
+                  onReplyTap: _reply,
+                );
+              },
+              pinPermissions: ['owner', 'admin', 'member'],
+            ),
+          ),
+          if (widget.parent!.type != 'deleted')
+            MessageInput(
+              parentMessage: widget.parent,
+              focusNode: _focusNode,
+              quotedMessage: _quotedMessage,
+              onQuotedMessageCleared: () {
+                setState(() => _quotedMessage = null);
+                _focusNode.unfocus();
+              },
+            ),
+        ],
+      ),
+    );
+  }
+}

packages/stream_chat_v1/lib/user_mentions_page.dart

@@ -0,0 +1,88 @@
+import 'package:example/routes/routes.dart';
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter/stream_chat_flutter.dart';
+
+import 'channel_page.dart';
+
+class UserMentionsPage extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    final user = StreamChat.of(context).user!;
+    return MessageSearchBloc(
+      child: MessageSearchListView(
+        filters: Filter.in_('members', [user.id]),
+        messageFilters: Filter.custom(
+          operator: r'$contains',
+          key: 'mentioned_users.id',
+          value: user.id,
+        ),
+        sortOptions: [
+          SortOption(
+            'created_at',
+            direction: SortOption.ASC,
+          ),
+        ],
+        paginationParams: PaginationParams(limit: 20),
+        showResultCount: false,
+        emptyBuilder: (_) {
+          return LayoutBuilder(
+            builder: (context, viewportConstraints) {
+              return SingleChildScrollView(
+                physics: AlwaysScrollableScrollPhysics(),
+                child: ConstrainedBox(
+                  constraints: BoxConstraints(
+                    minHeight: viewportConstraints.maxHeight,
+                  ),
+                  child: Center(
+                    child: Column(
+                      children: [
+                        Padding(
+                          padding: const EdgeInsets.all(24),
+                          child: StreamSvgIcon.mentions(
+                            size: 96,
+                            color:
+                                StreamChatTheme.of(context).colorTheme.disabled,
+                          ),
+                        ),
+                        Text(
+                          'No mentions exist yet...',
+                          style: StreamChatTheme.of(context)
+                              .textTheme
+                              .body
+                              .copyWith(
+                                color: StreamChatTheme.of(context)
+                                    .colorTheme
+                                    .textLowEmphasis,
+                              ),
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              );
+            },
+          );
+        },
+        onItemTap: (messageResponse) async {
+          final client = StreamChat.of(context).client;
+          final message = messageResponse.message;
+          final channel = client.channel(
+            messageResponse.channel!.type,
+            id: messageResponse.channel!.id,
+          );
+          if (channel.state == null) {
+            await channel.watch();
+          }
+          Navigator.pushNamed(
+            context,
+            Routes.CHANNEL_PAGE,
+            arguments: ChannelPageArgs(
+              channel: channel,
+              initialMessage: message,
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

packages/stream_chat_v1/pubspec.yaml

@@ -1,29 +1,37 @@
 name: example
 description: A new Flutter project.
 publish_to: 'none'
-version: 1.5.6
+version: 1.6.1
 
 environment:
-  sdk: ">=2.2.2 <3.0.0"
+  sdk: '>=2.12.0 <3.0.0'
 
 dependencies:
-  flutter_app_badger: ^1.1.2
+  flutter_app_badger: ^1.2.0
   flutter:
     sdk: flutter
-  stream_chat_flutter: ^1.5.2
-  stream_chat_persistence: ^1.5.1
-  flutter_local_notifications: ^2.0.2
-  flutter_svg: ^0.19.3
-  flutter_secure_storage: ^3.3.5
-  yaml: ^2.2.1
-  uuid: ^2.2.2
-  streaming_shared_preferences: ^1.0.2
-  lottie: ^0.7.0+1
+  stream_chat_flutter:
+    git:
+      url: https://github.com/GetStream/stream-chat-flutter.git
+      ref: develop
+      path: packages/stream_chat_flutter
+  stream_chat_persistence:
+    git:
+      url: https://github.com/GetStream/stream-chat-flutter.git
+      ref: develop
+      path: packages/stream_chat_persistence
+  flutter_local_notifications: ^5.0.0+4
+  flutter_svg: ^0.22.0
+  flutter_secure_storage: ^4.2.0
+  yaml: ^3.1.0
+  uuid: ^3.0.4
+  streaming_shared_preferences: ^2.0.0
+  lottie: ^1.0.1
+  collection: ^1.15.0-nullsafety.4
 
 dev_dependencies:
-  flutter_launcher_icons: ^0.8.1
+  flutter_launcher_icons: ^0.9.0
   test: any
-
 flutter:
   assets:
     - assets/

packages/stream_chat_v1/test/widget_test.dart

@@ -1,30 +0,0 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility that Flutter provides. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-
-import 'package:stream_chat_v1/main.dart';
-
-void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(MyApp());
-
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
-
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
-
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
-  });
-}