Salvatore Giordano
835 lines
26 KiB
Dart
835 lines
26 KiB
Dart
import 'dart:async';
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import 'package:example/chat_info_screen.dart';
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import 'package:example/choose_user_page.dart';
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import 'package:example/group_info_screen.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
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import 'package:stream_chat_flutter/stream_chat_flutter.dart';
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import 'package:stream_chat_persistence/stream_chat_persistence.dart';
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import 'package:streaming_shared_preferences/streaming_shared_preferences.dart';
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import 'notifications_service.dart';
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import 'routes/app_routes.dart';
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import 'routes/routes.dart';
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import 'search_text_field.dart';
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final chatPersistentClient = StreamChatPersistenceClient(
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logLevel: Level.INFO,
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connectionMode: ConnectionMode.background,
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);
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void main() async {
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WidgetsFlutterBinding.ensureInitialized();
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final secureStorage = FlutterSecureStorage();
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final apiKey = await secureStorage.read(key: kStreamApiKey);
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final userId = await secureStorage.read(key: kStreamUserId);
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final client = Client(
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apiKey ?? kDefaultStreamApiKey,
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logLevel: Level.INFO,
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)..chatPersistenceClient = chatPersistentClient;
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if (userId != null) {
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final token = await secureStorage.read(key: kStreamToken);
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await client.setUser(
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User(id: userId),
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token,
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);
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}
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runApp(MyApp(client));
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}
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class MyApp extends StatelessWidget {
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final Client client;
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MyApp(this.client);
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@override
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Widget build(BuildContext context) {
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return FutureBuilder<StreamingSharedPreferences>(
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future: StreamingSharedPreferences.instance,
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builder: (context, snapshot) {
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if (!snapshot.hasData) {
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return SizedBox();
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}
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return PreferenceBuilder<int>(
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preference: snapshot.data.getInt(
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'theme',
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defaultValue: 0,
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),
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builder: (context, snapshot) => MaterialApp(
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builder: (context, child) {
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return StreamChat(
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client: client,
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onBackgroundEventReceived: showLocalNotification,
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child: Builder(
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builder: (context) => AnnotatedRegion<SystemUiOverlayStyle>(
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child: child,
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value: SystemUiOverlayStyle(
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systemNavigationBarColor:
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StreamChatTheme.of(context).colorTheme.white,
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systemNavigationBarIconBrightness:
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Theme.of(context).brightness == Brightness.dark
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? Brightness.light
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: Brightness.dark,
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),
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),
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),
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);
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},
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debugShowCheckedModeBanner: false,
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theme: ThemeData.light(),
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darkTheme: ThemeData.dark(),
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themeMode: {
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-1: ThemeMode.dark,
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0: ThemeMode.system,
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1: ThemeMode.light,
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}[snapshot],
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onGenerateRoute: AppRoutes.generateRoute,
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initialRoute:
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client.state.user == null ? Routes.CHOOSE_USER : Routes.HOME,
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),
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);
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},
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);
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}
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}
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class HomePage extends StatefulWidget {
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@override
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_HomePageState createState() => _HomePageState();
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}
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class _HomePageState extends State<HomePage> {
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int _currentIndex = 0;
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bool _isSelected(int index) => _currentIndex == index;
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List<BottomNavigationBarItem> get _navBarItems {
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return <BottomNavigationBarItem>[
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BottomNavigationBarItem(
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icon: Stack(
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clipBehavior: Clip.none,
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children: [
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StreamSvgIcon.message(
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color: _isSelected(0)
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? StreamChatTheme.of(context).colorTheme.black
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: Colors.grey,
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),
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Positioned(
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top: -3,
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right: -16,
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child: UnreadIndicator(),
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),
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],
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),
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label: 'Chats',
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),
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BottomNavigationBarItem(
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icon: Stack(
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clipBehavior: Clip.none,
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children: [
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StreamSvgIcon.mentions(
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color: _isSelected(1)
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? StreamChatTheme.of(context).colorTheme.black
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: Colors.grey,
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),
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],
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),
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label: 'Mentions',
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),
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];
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}
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@override
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Widget build(BuildContext context) {
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final user = StreamChat.of(context).user;
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return Scaffold(
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backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
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appBar: ChannelListHeader(
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onNewChatButtonTap: () {
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Navigator.pushNamed(context, Routes.NEW_CHAT);
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},
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preNavigationCallback: () {
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FocusScope.of(context).requestFocus(FocusNode());
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},
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),
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drawer: _buildDrawer(context, user),
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drawerEdgeDragWidth: 50,
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bottomNavigationBar: BottomNavigationBar(
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backgroundColor: StreamChatTheme.of(context).colorTheme.white,
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currentIndex: _currentIndex,
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items: _navBarItems,
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selectedLabelStyle: StreamChatTheme.of(context).textTheme.footnoteBold,
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unselectedLabelStyle:
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StreamChatTheme.of(context).textTheme.footnoteBold,
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type: BottomNavigationBarType.fixed,
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selectedItemColor: StreamChatTheme.of(context).colorTheme.black,
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unselectedItemColor: Colors.grey,
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onTap: (index) {
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setState(() => _currentIndex = index);
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},
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),
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body: IndexedStack(
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index: _currentIndex,
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children: [
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ChannelListPage(),
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UserMentionPage(),
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],
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),
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);
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}
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Drawer _buildDrawer(BuildContext context, User user) {
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return Drawer(
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child: Container(
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color: StreamChatTheme.of(context).colorTheme.white,
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child: SafeArea(
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child: Padding(
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padding: EdgeInsets.only(
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top: MediaQuery.of(context).viewPadding.top + 8,
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),
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child: Column(
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children: [
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Padding(
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padding: const EdgeInsets.only(
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bottom: 20.0,
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left: 8,
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),
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child: Row(
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children: [
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UserAvatar(
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user: user,
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showOnlineStatus: false,
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constraints: BoxConstraints.tight(Size.fromRadius(20)),
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),
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Padding(
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padding: const EdgeInsets.only(left: 16.0),
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child: Text(
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user.name,
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style: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.bold,
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),
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),
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),
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],
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),
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),
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ListTile(
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leading: StreamSvgIcon.penWrite(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(.5),
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),
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onTap: () {
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Navigator.popAndPushNamed(
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context,
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Routes.NEW_CHAT,
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);
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},
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title: Text(
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'New direct message',
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style: TextStyle(
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fontSize: 14.5,
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),
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),
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),
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ListTile(
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leading: StreamSvgIcon.contacts(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(.5),
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),
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onTap: () {
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Navigator.popAndPushNamed(
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context,
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Routes.NEW_GROUP_CHAT,
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);
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},
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title: Text(
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'New group',
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style: TextStyle(
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fontSize: 14.5,
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),
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),
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),
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Expanded(
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child: Container(
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alignment: Alignment.bottomCenter,
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child: ListTile(
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onTap: () async {
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Navigator.pop(context);
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final secureStorage = FlutterSecureStorage();
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await secureStorage.deleteAll();
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StreamChat.of(context).client.disconnect(
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clearUser: true,
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);
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await Navigator.pushReplacementNamed(
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context,
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Routes.CHOOSE_USER,
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);
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},
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leading: StreamSvgIcon.user(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(.5),
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),
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title: Text(
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'Sign out',
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style: TextStyle(
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fontSize: 14.5,
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),
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),
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trailing: IconButton(
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icon: StreamSvgIcon.Icon_moon(
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size: 24,
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),
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color: StreamChatTheme.of(context).colorTheme.grey,
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onPressed: () async {
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final sp = await StreamingSharedPreferences.instance;
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sp.setInt(
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'theme',
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Theme.of(context).brightness == Brightness.dark
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? 1
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: -1,
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);
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},
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),
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),
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),
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),
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],
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),
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),
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),
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),
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);
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}
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}
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class UserMentionPage extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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final user = StreamChat.of(context).user;
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return MessageSearchBloc(
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child: MessageSearchListView(
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filters: {
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'members': {
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r'$in': [user.id],
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},
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},
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messageFilters: {
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'mentioned_users.id': {
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r'$contains': user.id,
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},
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},
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sortOptions: [
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SortOption(
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'created_at',
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direction: SortOption.ASC,
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),
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],
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paginationParams: PaginationParams(limit: 20),
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showResultCount: false,
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emptyBuilder: (_, __) {
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return LayoutBuilder(
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builder: (context, viewportConstraints) {
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return SingleChildScrollView(
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physics: AlwaysScrollableScrollPhysics(),
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child: ConstrainedBox(
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constraints: BoxConstraints(
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minHeight: viewportConstraints.maxHeight,
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),
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child: Center(
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child: Column(
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children: [
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Padding(
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padding: const EdgeInsets.all(24),
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child: StreamSvgIcon.mentions(
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size: 96,
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color: StreamChatTheme.of(context)
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.colorTheme
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.greyGainsboro,
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),
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),
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Text(
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'No mentions exist yet...',
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style: StreamChatTheme.of(context)
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.textTheme
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.body
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.copyWith(
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color:
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StreamChatTheme.of(context).colorTheme.grey,
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),
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),
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],
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),
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),
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),
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);
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},
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);
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},
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onItemTap: (messageResponse) async {
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final client = StreamChat.of(context).client;
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final message = messageResponse.message;
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final channel = client.channel(
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messageResponse.channel.type,
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id: messageResponse.channel.id,
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);
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if (channel.state == null) {
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await channel.watch();
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}
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Navigator.pushNamed(
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context,
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Routes.CHANNEL_PAGE,
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arguments: ChannelPageArgs(
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channel: channel,
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initialMessage: message,
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),
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);
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},
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),
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);
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}
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}
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class ChannelListPage extends StatefulWidget {
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@override
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_ChannelListPageState createState() => _ChannelListPageState();
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}
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class _ChannelListPageState extends State<ChannelListPage> {
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TextEditingController _controller;
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String _channelQuery = '';
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bool _isSearchActive = false;
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Timer _debounce;
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void _channelQueryListener() {
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if (_debounce?.isActive ?? false) _debounce.cancel();
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_debounce = Timer(const Duration(milliseconds: 350), () {
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if (mounted) {
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setState(() {
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_channelQuery = _controller.text;
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_isSearchActive = _channelQuery.isNotEmpty;
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});
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}
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});
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}
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@override
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void initState() {
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super.initState();
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_controller = TextEditingController()..addListener(_channelQueryListener);
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}
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@override
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void dispose() {
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_controller?.removeListener(_channelQueryListener);
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_controller?.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final user = StreamChat.of(context).user;
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return WillPopScope(
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onWillPop: () async {
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if (_isSearchActive) {
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_controller.clear();
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setState(() => _isSearchActive = false);
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return false;
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}
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return true;
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},
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child: ChannelsBloc(
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child: MessageSearchBloc(
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child: NestedScrollView(
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floatHeaderSlivers: true,
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headerSliverBuilder: (_, __) => [
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SliverToBoxAdapter(
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child: SearchTextField(
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controller: _controller,
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showCloseButton: _isSearchActive,
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),
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),
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],
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body: AnimatedSwitcher(
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duration: const Duration(milliseconds: 350),
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child: GestureDetector(
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behavior: HitTestBehavior.opaque,
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onPanDown: (_) => FocusScope.of(context).unfocus(),
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child: _isSearchActive
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? MessageSearchListView(
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messageQuery: _channelQuery,
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filters: {
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'members': {
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r'$in': [user.id]
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}
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},
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sortOptions: [
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SortOption(
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'created_at',
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direction: SortOption.ASC,
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),
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],
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pullToRefresh: false,
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paginationParams: PaginationParams(limit: 20),
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emptyBuilder: (_, query) {
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return LayoutBuilder(
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builder: (context, viewportConstraints) {
|
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return SingleChildScrollView(
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physics: AlwaysScrollableScrollPhysics(),
|
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child: ConstrainedBox(
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constraints: BoxConstraints(
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minHeight: viewportConstraints.maxHeight,
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),
|
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child: Center(
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child: Column(
|
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children: [
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Padding(
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padding: const EdgeInsets.all(24),
|
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child: StreamSvgIcon.search(
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size: 96,
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color: Colors.grey,
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),
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),
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Text(
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'No results for \"$query\"...',
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),
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],
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),
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),
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),
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);
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},
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);
|
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},
|
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onItemTap: (messageResponse) async {
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FocusScope.of(context).requestFocus(FocusNode());
|
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final client = StreamChat.of(context).client;
|
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final message = messageResponse.message;
|
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final channel = client.channel(
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messageResponse.channel.type,
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id: messageResponse.channel.id,
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);
|
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if (channel.state == null) {
|
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await channel.watch();
|
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}
|
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Navigator.pushNamed(
|
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context,
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Routes.CHANNEL_PAGE,
|
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arguments: ChannelPageArgs(
|
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channel: channel,
|
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initialMessage: message,
|
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),
|
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);
|
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},
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)
|
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: ChannelListView(
|
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onStartChatPressed: () {
|
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Navigator.pushNamed(context, Routes.NEW_CHAT);
|
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},
|
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swipeToAction: true,
|
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filter: {
|
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'members': {
|
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r'$in': [user.id],
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},
|
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},
|
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options: {
|
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'presence': true,
|
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},
|
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pagination: PaginationParams(
|
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limit: 20,
|
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),
|
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channelWidget: ChannelPage(),
|
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onViewInfoTap: (channel) {
|
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if (channel.memberCount == 2 && channel.isDistinct) {
|
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Navigator.push(
|
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context,
|
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MaterialPageRoute(
|
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builder: (context) => StreamChannel(
|
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channel: channel,
|
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child: ChatInfoScreen(
|
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user: channel.state.members.first.user,
|
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),
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),
|
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),
|
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);
|
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} else {
|
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Navigator.push(
|
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context,
|
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MaterialPageRoute(
|
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builder: (context) => StreamChannel(
|
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channel: channel,
|
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child: GroupInfoScreen(),
|
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),
|
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),
|
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);
|
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}
|
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},
|
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),
|
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),
|
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),
|
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),
|
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),
|
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),
|
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);
|
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}
|
|
}
|
|
|
|
class ChannelPageArgs {
|
|
final Channel channel;
|
|
final Message initialMessage;
|
|
|
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const ChannelPageArgs({
|
|
this.channel,
|
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this.initialMessage,
|
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});
|
|
}
|
|
|
|
class ChannelPage extends StatefulWidget {
|
|
final int initialScrollIndex;
|
|
final double initialAlignment;
|
|
final bool highlightInitialMessage;
|
|
|
|
const ChannelPage({
|
|
Key key,
|
|
this.initialScrollIndex,
|
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this.initialAlignment,
|
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this.highlightInitialMessage = false,
|
|
}) : super(key: key);
|
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|
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@override
|
|
_ChannelPageState createState() => _ChannelPageState();
|
|
}
|
|
|
|
class _ChannelPageState extends State<ChannelPage> {
|
|
Message _quotedMessage;
|
|
FocusNode _focusNode;
|
|
|
|
@override
|
|
void initState() {
|
|
_focusNode = FocusNode();
|
|
super.initState();
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_focusNode.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
void _reply(Message message) {
|
|
setState(() => _quotedMessage = message);
|
|
WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
|
|
_focusNode.requestFocus();
|
|
});
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Scaffold(
|
|
backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
|
|
appBar: ChannelHeader(
|
|
showTypingIndicator: false,
|
|
onImageTap: () async {
|
|
var channel = StreamChannel.of(context).channel;
|
|
|
|
if (channel.memberCount == 2 && channel.isDistinct) {
|
|
final currentUser = StreamChat.of(context).user;
|
|
final otherUser = channel.state.members.firstWhere(
|
|
(element) => element.user.id != currentUser.id,
|
|
orElse: () => null,
|
|
);
|
|
if (otherUser != null) {
|
|
final pop = await Navigator.push(
|
|
context,
|
|
MaterialPageRoute(
|
|
builder: (context) => StreamChannel(
|
|
child: ChatInfoScreen(
|
|
user: otherUser.user,
|
|
),
|
|
channel: channel,
|
|
),
|
|
),
|
|
);
|
|
|
|
if (pop == true) {
|
|
Navigator.pop(context);
|
|
}
|
|
}
|
|
} else {
|
|
await Navigator.push(
|
|
context,
|
|
MaterialPageRoute(
|
|
builder: (context) => StreamChannel(
|
|
child: GroupInfoScreen(),
|
|
channel: channel,
|
|
),
|
|
),
|
|
);
|
|
}
|
|
},
|
|
),
|
|
body: Column(
|
|
children: <Widget>[
|
|
Expanded(
|
|
child: Stack(
|
|
children: <Widget>[
|
|
MessageListView(
|
|
initialScrollIndex: widget.initialScrollIndex,
|
|
initialAlignment: widget.initialAlignment,
|
|
highlightInitialMessage: widget.highlightInitialMessage,
|
|
onMessageSwiped: _reply,
|
|
onReplyTap: _reply,
|
|
threadBuilder: (_, parentMessage) {
|
|
return ThreadPage(
|
|
parent: parentMessage,
|
|
);
|
|
},
|
|
onShowMessage: (m, c) async {
|
|
final client = StreamChat.of(context).client;
|
|
final message = m;
|
|
final channel = client.channel(
|
|
c.type,
|
|
id: c.id,
|
|
);
|
|
if (channel.state == null) {
|
|
await channel.watch();
|
|
}
|
|
Navigator.pushReplacementNamed(
|
|
context,
|
|
Routes.CHANNEL_PAGE,
|
|
arguments: ChannelPageArgs(
|
|
channel: channel,
|
|
initialMessage: message,
|
|
),
|
|
);
|
|
},
|
|
),
|
|
Positioned(
|
|
bottom: 0,
|
|
left: 0,
|
|
right: 0,
|
|
child: Container(
|
|
alignment: Alignment.centerLeft,
|
|
color: StreamChatTheme.of(context)
|
|
.colorTheme
|
|
.whiteSnow
|
|
.withOpacity(.9),
|
|
child: TypingIndicator(
|
|
alignment: Alignment.centerLeft,
|
|
padding: const EdgeInsets.symmetric(
|
|
horizontal: 8,
|
|
vertical: 4,
|
|
),
|
|
style: StreamChatTheme.of(context)
|
|
.textTheme
|
|
.footnote
|
|
.copyWith(
|
|
color:
|
|
StreamChatTheme.of(context).colorTheme.grey),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
MessageInput(
|
|
focusNode: _focusNode,
|
|
quotedMessage: _quotedMessage,
|
|
onQuotedMessageCleared: () {
|
|
setState(() => _quotedMessage = null);
|
|
_focusNode.unfocus();
|
|
},
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class ThreadPage extends StatefulWidget {
|
|
final Message parent;
|
|
final int initialScrollIndex;
|
|
final double initialAlignment;
|
|
|
|
ThreadPage({
|
|
Key key,
|
|
this.parent,
|
|
this.initialScrollIndex,
|
|
this.initialAlignment,
|
|
}) : super(key: key);
|
|
|
|
@override
|
|
_ThreadPageState createState() => _ThreadPageState();
|
|
}
|
|
|
|
class _ThreadPageState extends State<ThreadPage> {
|
|
Message _quotedMessage;
|
|
FocusNode _focusNode = FocusNode();
|
|
|
|
@override
|
|
void dispose() {
|
|
_focusNode.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
void _reply(Message message) {
|
|
setState(() => _quotedMessage = message);
|
|
WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
|
|
_focusNode.requestFocus();
|
|
});
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return Scaffold(
|
|
backgroundColor: StreamChatTheme.of(context).colorTheme.whiteSnow,
|
|
appBar: ThreadHeader(
|
|
parent: widget.parent,
|
|
),
|
|
body: Column(
|
|
children: <Widget>[
|
|
Expanded(
|
|
child: MessageListView(
|
|
parentMessage: widget.parent,
|
|
initialScrollIndex: widget.initialScrollIndex,
|
|
initialAlignment: widget.initialAlignment,
|
|
onMessageSwiped: _reply,
|
|
onReplyTap: _reply,
|
|
),
|
|
),
|
|
if (widget.parent.type != 'deleted')
|
|
MessageInput(
|
|
parentMessage: widget.parent,
|
|
focusNode: _focusNode,
|
|
quotedMessage: _quotedMessage,
|
|
onQuotedMessageCleared: () {
|
|
setState(() => _quotedMessage = null);
|
|
_focusNode.unfocus();
|
|
},
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
}
|