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stream-chat-flutter/example/lib/threads.dart
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import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
/// Fourth step of the [tutorial](https://getstream.io/chat/flutter/tutorial/)
///
/// Stream Chat supports message threads out of the box. Threads allows users to create sub-conversations inside the same channel.
///
/// Using threaded conversations is very simple and mostly a matter of plugging the [MessageListView] to another widget that renders the widget.
/// To make this simple, such a widget only needs to build [MessageListView] with the parent attribute set to the threads root message.
///
/// Now we can open threads and create new ones as well, if you long press a message you can tap on Reply and it will open the same [ThreadPage].
void main() async {
final client = Client(
's2dxdhpxd94g',
logLevel: Level.INFO,
);
await client.setUser(
User(id: 'super-band-9'),
'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoic3VwZXItYmFuZC05In0.0L6lGoeLwkz0aZRUcpZKsvaXtNEDHBcezVTZ0oPq40A',
);
runApp(MyApp(client));
}
class MyApp extends StatelessWidget {
final Client client;
MyApp(this.client);
@override
Widget build(BuildContext context) {
return MaterialApp(
builder: (context, child) => StreamChat(
child: child,
client: client,
),
home: Container(
child: ChannelListPage(),
),
);
}
}
class ChannelListPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: ChannelsBloc(
child: ChannelListView(
filter: {
'members': {
'\$in': [StreamChat.of(context).user.id],
}
},
sort: [SortOption('last_message_at')],
pagination: PaginationParams(
limit: 20,
),
channelWidget: ChannelPage(),
),
),
);
}
}
class ChannelPage extends StatelessWidget {
const ChannelPage({
Key key,
}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: ChannelHeader(),
body: Column(
children: <Widget>[
Expanded(
child: MessageListView(
threadBuilder: (_, parentMessage) {
return ThreadPage(
parent: parentMessage,
);
},
),
),
MessageInput(),
],
),
);
}
}
class ThreadPage extends StatelessWidget {
final Message parent;
ThreadPage({
Key key,
this.parent,
}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: ThreadHeader(
parent: parent,
),
body: Column(
children: <Widget>[
Expanded(
child: MessageListView(
parentMessage: parent,
),
),
MessageInput(
parentMessage: parent,
),
],
),
);
}
}