Merge branch 'master' into feature/partial-update

packages/stream_chat_flutter/lib/src/message_search_list_view.dart

@@ -154,7 +154,7 @@ class _MessageSearchListViewState extends State<MessageSearchListView> {
               },
             );
           },
-      errorBuilder: widget.emptyBuilder ??
+      errorBuilder: widget.errorBuilder ??
           (BuildContext context, dynamic error) {
             if (error is Error) {
               print((error).stackTrace);

packages/stream_chat_flutter_core/example/lib/main.dart

@@ -67,6 +67,8 @@ class StreamExample extends StatelessWidget {
 /// [ChannelListCore] is a `builder` with callbacks for constructing UIs based
 /// on different scenarios.
 class HomeScreen extends StatelessWidget {
+  final channelListController = ChannelListController();
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -75,6 +77,15 @@ class HomeScreen extends StatelessWidget {
       ),
       body: ChannelsBloc(
         child: ChannelListCore(
+          channelListController: channelListController,
+          filter: {
+            'type': 'messaging',
+            'members': {
+              r'$in': [
+                StreamChatCore.of(context).user.id,
+              ]
+            }
+          },
           emptyBuilder: (BuildContext context) {
             return Center(
               child: Text('Looks like you are not in any channels'),
@@ -99,13 +110,27 @@ class HomeScreen extends StatelessWidget {
             BuildContext context,
             List<Channel> channels,
           ) =>
-              ListView.builder(
+              LazyLoadScrollView(
+            onEndOfPage: () async {
+              channelListController.paginateData();
+            },
+            child: ListView.builder(
               itemCount: channels.length,
               itemBuilder: (BuildContext context, int index) {
                 final _item = channels[index];
                 return ListTile(
                   title: Text(_item.name),
-                subtitle: Text(_item.state.lastMessage.text),
+                  subtitle: StreamBuilder<Message>(
+                    stream: _item.state.lastMessageStream,
+                    initialData: _item.state.lastMessage,
+                    builder: (context, snapshot) {
+                      if (snapshot.hasData) {
+                        return Text(snapshot.data.text);
+                      }
+
+                      return SizedBox();
+                    },
+                  ),
                   onTap: () {
                     /// Display a list of messages when the user taps on an item.
                     /// We can use [StreamChannel] to wrap our [MessageScreen] screen
@@ -127,6 +152,7 @@ class HomeScreen extends StatelessWidget {
             ),
           ),
         ),
+      ),
     );
   }
 }
@@ -145,6 +171,7 @@ class MessageScreen extends StatefulWidget {
 class _MessageScreenState extends State<MessageScreen> {
   TextEditingController _controller;
   ScrollController _scrollController;
+  final messageListController = MessageListController();
 
   @override
   void initState() {
@@ -175,12 +202,25 @@ class _MessageScreenState extends State<MessageScreen> {
     final channel = StreamChannel.of(context).channel;
     return Scaffold(
       appBar: AppBar(
-        title: Text(channel.name),
+        title: StreamBuilder<List<User>>(
+          initialData: channel.state.typingEvents,
+          stream: channel.state.typingEventsStream,
+          builder: (context, snapshot) {
+            if (snapshot.hasData && snapshot.data.isNotEmpty) {
+              return Text('${snapshot.data.first.name} is typing...');
+            }
+            return SizedBox();
+          },
+        ),
       ),
       body: SafeArea(
         child: Column(
           children: [
             Expanded(
+              child: LazyLoadScrollView(
+                onEndOfPage: () async {
+                  messageListController.paginateData();
+                },
                 child: MessageListCore(
                   emptyBuilder: (BuildContext context) {
                     return Center(
@@ -233,12 +273,14 @@ class _MessageScreenState extends State<MessageScreen> {
                       child: SizedBox(
                         height: 100.0,
                         width: 100.0,
-                      child: Text('Oh no, an error occured. Please see logs.'),
+                        child:
+                            Text('Oh no, an error occured. Please see logs.'),
                       ),
                     );
                   },
                 ),
               ),
+            ),
             Padding(
               padding: const EdgeInsets.all(8.0),
               child: Row(

packages/stream_chat_flutter_core/lib/src/channel_list_core.dart

@@ -64,7 +64,10 @@ class ChannelListCore extends StatefulWidget {
     this.filter,
     this.options,
     this.sort,
-    this.pagination,
+    this.pagination = const PaginationParams(
+      offset: 0,
+      limit: 25,
+    ),
     this.channelListController,
   })  : assert(errorBuilder != null),
         assert(emptyBuilder != null),