WIP example
This commit is contained in:
Neevash Ramdial
@@ -1,121 +1,249 @@
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import 'package:flutter/material.dart';
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import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
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void main() {
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runApp(MyApp());
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Future<void> main() async {
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/// Create a new instance of [Client] passing the apikey obtained from your
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/// project dashboard.
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final client = Client('b67pax5b2wdq');
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/// Set the current user. In a production scenario, this should be done using
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/// a backend to generate a user token using our server SDK.
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/// Please see the following for more information:
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/// https://getstream.io/chat/docs/ios_user_setup_and_tokens/
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await client.setUser(
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User(
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id: 'cool-shadow-7',
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extraData: {
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'image':
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'https://getstream.io/random_png/?id=cool-shadow-7&name=Cool+shadow',
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},
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),
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'eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiY29vbC1zaGFkb3ctNyJ9.gkOlCRb1qgy4joHPaxFwPOdXcGvSPvp6QY0S4mpRkVo',
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);
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runApp(
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StreamExample(
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client: client,
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),
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);
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}
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// ignore: public_member_api_docs
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class MyApp extends StatelessWidget {
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// This widget is the root of your application.
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class StreamExample extends StatelessWidget {
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const StreamExample({
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Key key,
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@required this.client,
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}) : super(key: key);
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final Client client;
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Demo',
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theme: ThemeData(
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// This is the theme of your application.
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//
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// Try running your application with "flutter run". You'll see the
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// application has a blue toolbar. Then, without quitting the app, try
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// changing the primarySwatch below to Colors.green and then invoke
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// "hot reload" (press "r" in the console where you ran "flutter run",
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// or simply save your changes to "hot reload" in a Flutter IDE).
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// Notice that the counter didn't reset back to zero; the application
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// is not restarted.
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primarySwatch: Colors.blue,
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// This makes the visual density adapt to the platform that you run
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// the app on. For desktop platforms, the controls will be smaller and
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// closer together (more dense) than on mobile platforms.
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visualDensity: VisualDensity.adaptivePlatformDensity,
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title: 'Stream Chat Dart Example',
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home: _HomeScreen(),
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builder: (context, child) => StreamChatCore(
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client: client,
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child: ChannelsBloc(child: child),
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),
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home: MyHomePage(title: 'Flutter Demo Home Page'),
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);
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}
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}
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// ignore: public_member_api_docs
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class MyHomePage extends StatefulWidget {
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// ignore: public_member_api_docs
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MyHomePage({Key key, this.title}) : super(key: key);
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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// ignore: public_member_api_docs
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final String title;
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class _HomeScreen extends StatelessWidget {
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@override
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_MyHomePageState createState() => _MyHomePageState();
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text('Channels'),
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),
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body: ChannelListCore(
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emptyBuilder: (BuildContext context) {
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return Center(
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child: Text('Looks like you are not in any channels'),
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);
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},
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loadingBuilder: (BuildContext context) {
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return Center(
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child: SizedBox(
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height: 100.0,
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width: 100.0,
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child: CircularProgressIndicator(),
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),
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);
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},
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errorBuilder: (Error error) {
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return Center(
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child:
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Text('Oh no, something went wrong. Please check your config.'),
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);
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},
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listBuilder: (BuildContext context, List<Channel> channels) =>
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ListView.builder(
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itemCount: channels.length,
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itemBuilder: (BuildContext context, int index) {
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final item = channels[index];
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return ListTile(
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title: Text(item.name),
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subtitle: Text(item.state.lastMessage.text),
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onTap: () {
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Navigator.of(context).push(
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MaterialPageRoute(
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builder: (context) => StreamChannel(
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channel: item,
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child: MessageScreen(),
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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 _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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class MessageScreen extends StatefulWidget {
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@override
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_MessageScreenState createState() => _MessageScreenState();
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}
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void _incrementCounter() {
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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});
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class _MessageScreenState extends State<MessageScreen> {
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TextEditingController _controller;
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ScrollController _scrollController;
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@override
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void initState() {
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super.initState();
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_controller = TextEditingController();
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_scrollController = ScrollController();
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}
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@override
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void dispose() {
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_controller.dispose();
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_scrollController.dispose();
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super.dispose();
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}
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void _updateList() {
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_scrollController.animateTo(
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_scrollController.position.maxScrollExtent,
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duration: const Duration(milliseconds: 200),
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curve: Curves.easeOut,
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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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// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
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child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Invoke "debug painting" (press "p" in the console, choose the
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// "Toggle Debug Paint" action from the Flutter Inspector in Android
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// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
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// to see the wireframe for each widget.
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//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
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// axis because Columns are vertical (the cross axis would be
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// horizontal).
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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Text(
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'You have pushed the button this many times:',
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body: Column(
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children: [
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Expanded(
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child: MessageListCore(
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emptyBuilder: (BuildContext context) {
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return Center(
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child: Text('Looks like you are not in any channels'),
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);
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},
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loadingBuilder: (BuildContext context) {
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return Center(
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child: SizedBox(
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height: 100.0,
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width: 100.0,
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child: CircularProgressIndicator(),
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),
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);
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},
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messageListBuilder:
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(BuildContext context, List<Message> messages) {
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return ListView.builder(
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controller: _scrollController,
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itemCount: messages.length,
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reverse: true,
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itemBuilder: (BuildContext context, int index) {
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final item = messages[index];
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final client = StreamChatCore.of(context).client;
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if (item.user.id == client.uid) {
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return Align(
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alignment: Alignment.centerRight,
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text(item.text),
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),
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);
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} else {
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return Align(
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alignment: Alignment.centerLeft,
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text(item.text),
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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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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headline4,
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),
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Row(
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children: [
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Expanded(
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child: TextField(
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controller: _controller,
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decoration: const InputDecoration(
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hintText: 'Enter your message',
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),
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),
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),
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Material(
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type: MaterialType.circle,
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color: Colors.blue,
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clipBehavior: Clip.hardEdge,
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child: InkWell(
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onTap: () async {
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if (_controller.value.text.isNotEmpty) {
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//TODO(Nash): Send Message
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// await widget.channel.sendMessage(
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// Message(text: _controller.value.text),
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// );
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_controller.clear();
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_updateList();
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}
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},
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child: const Padding(
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padding: EdgeInsets.all(8.0),
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child: Center(
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child: Icon(
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Icons.send,
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color: Colors.white,
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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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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
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tooltip: 'Increment',
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child: Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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);
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}
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}
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extension on Client {
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String get uid => state.user.id;
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}
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extension on Channel {
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String get name {
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final _channelName = extraData['name'];
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if (_channelName != null) {
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return _channelName;
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} else {
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return cid;
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}
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}
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}
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@@ -1,30 +0,0 @@
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// This is a basic Flutter widget test.
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//
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// To perform an interaction with a widget in your test, use the WidgetTester
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// utility that Flutter provides. For example, you can send tap and scroll
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// gestures. You can also use WidgetTester to find child widgets in the widget
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// tree, read text, and verify that the values of widget properties are correct.
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:example/main.dart';
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void main() {
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testWidgets('Counter increments smoke test', (WidgetTester tester) async {
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// Build our app and trigger a frame.
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await tester.pumpWidget(MyApp());
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// Verify that our counter starts at 0.
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expect(find.text('0'), findsOneWidget);
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expect(find.text('1'), findsNothing);
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// Tap the '+' icon and trigger a frame.
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await tester.tap(find.byIcon(Icons.add));
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await tester.pump();
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// Verify that our counter has incremented.
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expect(find.text('0'), findsNothing);
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expect(find.text('1'), findsOneWidget);
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});
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}
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