add channel, user and messages db

lib/src/channel_list_view.dart

@@ -215,7 +215,10 @@ class _ChannelListViewState extends State<ChannelListView> {
     if (i < channels.length) {
       final channel = channels[i];
 
-      final channelClient = streamChat.client.channels[channel.cid];
+      final channelClient = streamChat.channels.firstWhere(
+        (c) => c.cid == channel.cid,
+        orElse: () => null,
+      );
 
       ChannelTapCallback onTap;
       if (widget.onChannelTap != null) {

lib/src/channel_preview.dart

@@ -110,15 +110,15 @@ class ChannelPreview extends StatelessWidget {
       initialData: channel.state.messages,
       builder: (context, snapshot) {
         final messages = snapshot.data;
-        final lastMessage = messages.isNotEmpty ? messages.last : null;
+        final lastMessage = messages?.isNotEmpty == true ? messages.last : null;
         if (lastMessage == null) {
           return SizedBox();
         }
 
-        String text;
+        String text = lastMessage.text;
         if (lastMessage.isDeleted) {
           text = 'This message was deleted.';
-        } else {
+        } else if (lastMessage.attachments != null) {
           final prefix = lastMessage.attachments
               .map((e) {
                 if (e.type == 'image') {

lib/src/message_widget.dart

@@ -101,7 +101,7 @@ class _MessageWidgetState extends State<MessageWidget>
           widget.message.isDeleted
               ? _buildDeletedMessage(alignment)
               : _buildBubble(context),
-          if (_streamChannel.channel.config.replies)
+          if (_streamChannel.channel.config?.replies == true)
             _buildThreadIndicator(context),
           if (!_isNextUser) _buildTimestamp(alignment),
         ],
@@ -146,7 +146,8 @@ class _MessageWidgetState extends State<MessageWidget>
           UserAvatar(user: widget.message.user),
           if (_isMyMessage &&
               widget.nextMessage == null &&
-              widget.message.status == MessageSendingStatus.SENT)
+              (widget.message.status == MessageSendingStatus.SENT ||
+                  widget.message.status == null))
             Padding(
               padding: const EdgeInsets.symmetric(
                 horizontal: 1.0,
@@ -278,28 +279,30 @@ class _MessageWidgetState extends State<MessageWidget>
     var nOfAttachmentWidgets = 0;
 
     final column =
-        List<Widget>.from(widget.message.attachments.map((attachment) {
-      nOfAttachmentWidgets++;
+        List<Widget>.from(widget.message.attachments?.map((attachment) {
+              nOfAttachmentWidgets++;
 
-      Widget attachmentWidget;
-      if (attachment.type == 'video') {
-        attachmentWidget = _buildVideo(attachment);
-      } else if (attachment.type == 'image' || attachment.type == 'giphy') {
-        attachmentWidget = _buildImage(attachment);
-      }
+              Widget attachmentWidget;
+              if (attachment.type == 'video') {
+                attachmentWidget = _buildVideo(attachment);
+              } else if (attachment.type == 'image' ||
+                  attachment.type == 'giphy') {
+                attachmentWidget = _buildImage(attachment);
+              }
 
-      if (attachmentWidget != null) {
-        return _buildAttachment(
-          attachmentWidget,
-          attachment,
-          nOfAttachmentWidgets,
-          context,
-        );
-      }
+              if (attachmentWidget != null) {
+                return _buildAttachment(
+                  attachmentWidget,
+                  attachment,
+                  nOfAttachmentWidgets,
+                  context,
+                );
+              }
 
-      nOfAttachmentWidgets--;
-      return SizedBox();
-    }));
+              nOfAttachmentWidgets--;
+              return SizedBox();
+            }) ??
+            []);
 
     if (widget.message.text.trim().isNotEmpty) {
       String text = widget.message.text;
@@ -312,7 +315,7 @@ class _MessageWidgetState extends State<MessageWidget>
                 ? CrossAxisAlignment.end
                 : CrossAxisAlignment.start,
             children: <Widget>[
-              if (_streamChannel.channel.config.reactions &&
+              if (_streamChannel.channel.config?.reactions == true &&
                   nOfAttachmentWidgets == 0)
                 Align(
                   child: _buildReactions(),
@@ -323,7 +326,9 @@ class _MessageWidgetState extends State<MessageWidget>
               Stack(
                 overflow: Overflow.visible,
                 children: <Widget>[
-                  if (nOfAttachmentWidgets == 0) _buildReactionPaint(),
+                  if (nOfAttachmentWidgets == 0 &&
+                      _streamChannel.channel.config?.reactions == true)
+                    _buildReactionPaint(),
                   _buildMessageText(nOfAttachmentWidgets, text, context),
                 ],
               ),
@@ -333,7 +338,8 @@ class _MessageWidgetState extends State<MessageWidget>
       );
     }
 
-    if (_streamChannel.channel.config.reactions && nOfAttachmentWidgets > 0) {
+    if (_streamChannel.channel.config?.reactions == true &&
+        nOfAttachmentWidgets > 0) {
       column.insert(
         0,
         Align(
@@ -991,7 +997,7 @@ class _MessageWidgetState extends State<MessageWidget>
 
   @override
   bool get wantKeepAlive {
-    return widget.message.attachments.isNotEmpty;
+    return widget.message.attachments?.isNotEmpty == true;
   }
 }
 

lib/src/stream_chat.dart

@@ -171,19 +171,6 @@ class StreamChatState extends State<StreamChat> {
     return theme;
   }
 
-  @override
-  void initState() {
-    super.initState();
-    _subscriptions.add(widget.client.on('message.new').listen((Event e) {
-      final index = channels.indexWhere((c) => c.cid == e.cid);
-      if (index > 0) {
-        final channel = channels.removeAt(index);
-        channels.insert(0, channel);
-        _channelsController.add(channels);
-      }
-    }));
-  }
-
   /// The current user
   User get user => widget.client.state.user;
 
@@ -191,12 +178,10 @@ class StreamChatState extends State<StreamChat> {
   Stream<User> get userStream => widget.client.state.userStream;
 
   /// The current channel list
-  final List<Channel> channels = [];
+  List<Channel> get channels => client.state.channels;
 
   /// The current channel list as a stream
-  Stream<List<Channel>> get channelsStream => _channelsController.stream;
-
-  final BehaviorSubject<List<Channel>> _channelsController = BehaviorSubject();
+  Stream<List<Channel>> get channelsStream => client.state.channelsStream;
 
   final BehaviorSubject<bool> _queryChannelsLoadingController =
       BehaviorSubject.seeded(false);
@@ -218,16 +203,12 @@ class StreamChatState extends State<StreamChat> {
     _queryChannelsLoadingController.sink.add(true);
 
     try {
-      final res = await widget.client.queryChannels(
+      await widget.client.queryChannels(
         filter: filter,
         sort: sortOptions,
         options: options,
         paginationParams: paginationParams,
       );
-      channels.addAll(res);
-      _channelsController.sink.add(channels);
-    } catch (e) {
-      _channelsController.sink.addError(e);
     } finally {
       _queryChannelsLoadingController.sink.add(false);
     }
@@ -243,7 +224,6 @@ class StreamChatState extends State<StreamChat> {
     widget.client.dispose();
     _subscriptions.forEach((s) => s.cancel());
     _queryChannelsLoadingController.close();
-    _channelsController.close();
     super.dispose();
   }
 }

pubspec.yaml

@@ -20,7 +20,8 @@ dependencies:
   file_picker: ^1.4.3+2
   image_picker: ^0.6.3+4
   keyboard_visibility: ^0.5.6
-  stream_chat: ^0.1.18
+  stream_chat:
+    path: ../stream_chat_dart
 
 dev_dependencies:
   pedantic: ^1.9.0