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Stream Chat official Flutter SDK. Build your own chat experience using Dart and Flutter.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';

Future<void> _handleAndroidNotification(
  Map<String, dynamic> notification,
) async {
  final notificationData =
      await NotificationService.getAndStoreMessage(notification);

  final androidPlatformChannelSpecifics = AndroidNotificationDetails(
    'Message notifications',
    'Message notifications',
    'Channel dedicated to message notifications',
    importance: Importance.Max,
    priority: Priority.High,
  );

  final androidNotificationOptions = AndroidNotificationOptions(
    androidNotificationDetails: androidPlatformChannelSpecifics,
    id: notificationData.message.id.hashCode,
    title:
        'CUSTOM ${notificationData.message.user.name} @ ${notificationData.channel.cid}',
    body: notificationData.message.text,
  );

  await NotificationService.showNotification(androidNotificationOptions);
}

void main() async {
  final client = Client(
    's2dxdhpxd94g',
    logLevel: Level.INFO,
    androidNotificationHandler: _handleAndroidNotification,
  );

  await client.setUser(
    User(id: 'user1'),
    'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoidXNlcjEifQ.NGZPyPMx7KSVisJmh4tJhOIv7ZjCaMQpOh4gTINvCaU',
  );

  runApp(MyApp(client));
}

class MyApp extends StatelessWidget {
  final Client client;

  MyApp(this.client);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.light(),
      darkTheme: ThemeData.dark(),
      themeMode: ThemeMode.system,
      home: Container(
        child: StreamChat(
          client: client,
          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: Stack(
              children: <Widget>[
                MessageListView(
                  showVideoFullScreen: false,
                  threadBuilder: (_, parentMessage) {
                    return ThreadPage(
                      parent: parentMessage,
                    );
                  },
                ),
                Positioned.fill(
                  child: Padding(
                    padding: const EdgeInsets.symmetric(
                      horizontal: 8.0,
                      vertical: 4,
                    ),
                    child: TypingIndicator(
                      alignment: Alignment.bottomRight,
                    ),
                  ),
                ),
              ],
            ),
          ),
          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,
            ),
          ),
          if (parent.type != 'deleted')
            MessageInput(
              parentMessage: parent,
            ),
        ],
      ),
    );
  }
}