add channel added delete events

example/lib/main.dart

@@ -78,6 +78,19 @@ void main() async {
     'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoic3VwZXItYmFuZC05In0.0L6lGoeLwkz0aZRUcpZKsvaXtNEDHBcezVTZ0oPq40A',
   );
 
+//  final client = Client(
+//    'qk4nn7rpcn75',
+//    logLevel: Level.INFO,
+//    showLocalNotification: Platform.isAndroid ? showLocalNotification : null,
+//    persistenceEnabled: true,
+//    baseURL: '127.0.0.1:3030',
+//  );
+//
+//  await client.setUser(
+//    User(id: 'super-band-9'),
+//    'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoic3VwZXItdHJhbXAtOSJ9.BbcxsR3FsK9c1q1ijhbBWvlXRwRpZ1RoHMKscKWZklk',
+//  );
+
   _initNotifications(client);
 
   runApp(MyApp(client));

lib/src/channels_bloc.dart

@@ -125,7 +125,20 @@ class ChannelsBlocState extends State<ChannelsBloc>
     _subscriptions.add(client.on(EventType.channelDeleted).listen((e) {
       final channel = e.channel;
       _channelsController
-          .add(channels..removeWhere((c) => c.cid == channel.cid));
+          .add(List.from(channels..removeWhere((c) => c.cid == channel.cid)));
+    }));
+
+    _subscriptions
+        .add(client.on(EventType.notificationAddedToChannel).listen((e) async {
+      final channelModel = e.channel;
+      final channel = Channel(
+        client,
+        channelModel.type,
+        channelModel.id,
+        channelModel.extraData,
+      );
+      await channel.watch();
+      _channelsController.add(List.from(channels..insert(0, channel)));
     }));
   }
 

lib/src/stream_channel.dart

@@ -149,14 +149,18 @@ class StreamChannelState extends State<StreamChannel> {
       initialData: widget.channel.state != null,
       builder: (context, snapshot) {
         if (!snapshot.hasData || !snapshot.data) {
-          return Scaffold(
+          return Container(
-            body: Center(
+            height: 30,
+            child: Center(
               child: CircularProgressIndicator(),
             ),
           );
         } else if (snapshot.hasError) {
-          return Center(
+          return Container(
-            child: Text(snapshot.error),
+            height: 30,
+            child: Center(
+              child: Text(snapshot.error),
+            ),
           );
         } else {
           return widget.child;