Merge branch 'master' into feat/pin-message

packages/stream_chat_flutter_core/example/lib/main.dart

@@ -120,7 +120,17 @@ class HomeScreen extends StatelessWidget {
                 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
@@ -161,6 +171,7 @@ class MessageScreen extends StatefulWidget {
 class _MessageScreenState extends State<MessageScreen> {
   TextEditingController _controller;
   ScrollController _scrollController;
+  final messageListController = MessageListController();
 
   @override
   void initState() {
@@ -191,12 +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(
@@ -249,12 +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(