build: 控制端功能移植到flutter版本
This commit is contained in:
@@ -1,4 +1,11 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_webrtc/flutter_webrtc.dart';
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import 'package:uuid/uuid.dart';
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import 'config/ice_servers.dart';
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import 'controller/remote_controller.dart';
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import 'utils/control_commands.dart';
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import 'widgets/remote_touch_view.dart';
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void main() {
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runApp(const MyApp());
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@@ -7,116 +14,231 @@ void main() {
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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// This widget is the root of your application.
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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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title: 'WebRTC 控制端',
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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 THIS: Try running your application with "flutter run". You'll see
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// the application has a purple toolbar. Then, without quitting the app,
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// try changing the seedColor in the colorScheme below to Colors.green
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// and then invoke "hot reload" (save your changes or press the "hot
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// reload" button in a Flutter-supported IDE, or press "r" if you used
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// the command line to start the app).
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//
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// Notice that the counter didn't reset back to zero; the application
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// state is not lost during the reload. To reset the state, use hot
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// restart instead.
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//
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// This works for code too, not just values: Most code changes can be
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// tested with just a hot reload.
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colorScheme: .fromSeed(seedColor: Colors.deepPurple),
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
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useMaterial3: true,
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),
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home: const MyHomePage(title: 'Flutter Demo Home Page'),
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home: const ControllerHome(),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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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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final String title;
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class ControllerHome extends StatefulWidget {
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const ControllerHome({super.key});
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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State<ControllerHome> createState() => _ControllerHomeState();
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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 _ControllerHomeState extends State<ControllerHome> {
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final _serverUrlController =
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TextEditingController(text: kDefaultSignalServer);
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final _deviceIdController = TextEditingController();
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final _targetController = TextEditingController(text: '981964879');
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void _incrementCounter() {
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RemoteController? _controller;
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RTCVideoRenderer? _renderer;
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bool _connected = false;
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String _status = '状态: 已停止';
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String _stats = '';
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double _videoAspect = 16 / 9;
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@override
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void initState() {
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super.initState();
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_deviceIdController.text = 'controller_${const Uuid().v4().substring(0, 8)}';
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}
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@override
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void dispose() {
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_controller?.disconnect();
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_serverUrlController.dispose();
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_deviceIdController.dispose();
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_targetController.dispose();
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super.dispose();
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}
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void _setStatus(String status) => setState(() => _status = status);
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Future<void> _connect() async {
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final serverUrl = _serverUrlController.text.trim();
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final deviceId = _deviceIdController.text.trim();
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final target = _targetController.text.trim();
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if (serverUrl.isEmpty || deviceId.isEmpty || target.isEmpty) {
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_setStatus('请填写所有字段');
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return;
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}
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_setStatus('状态: 正在连接信令服务器...');
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_controller = RemoteController(
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serverUrl: serverUrl,
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deviceId: deviceId,
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targetDeviceId: target,
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);
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_controller!.onStatusChanged = _setStatus;
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_controller!.onConnectionEstablished = () {
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setState(() {
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_connected = true;
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_status = '状态: 已连接 - 远程控制中';
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});
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};
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_controller!.onDisconnected = () {
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setState(() => _connected = false);
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_setStatus('状态: 远端已断开');
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};
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_controller!.onRemoteStream = (renderer) {
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setState(() => _renderer = renderer);
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renderer.addListener(_onRendererUpdate);
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};
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_controller!.onStats = (stats) => setState(() => _stats = stats);
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_controller!.connect();
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}
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void _onRendererUpdate() {
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final w = _renderer?.value.width ?? 0;
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final h = _renderer?.value.height ?? 0;
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if (w > 0 && h > 0 && mounted) {
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setState(() => _videoAspect = w / h);
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}
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}
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Future<void> _disconnect() async {
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await _controller?.disconnect();
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_controller = null;
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_renderer?.removeListener(_onRendererUpdate);
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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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_connected = false;
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_renderer = null;
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_status = '状态: 已停止';
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_stats = '';
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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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// TRY THIS: Try changing the color here to a specific color (to
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// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
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// change color while the other colors stay the same.
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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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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// 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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//
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// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
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// action in the IDE, or press "p" in the console), to see the
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// wireframe for each widget.
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mainAxisAlignment: .center,
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children: [
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const Text('You have pushed the button this many times:'),
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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headlineMedium,
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appBar: AppBar(title: const Text('WebRTC 控制端')),
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body: _connected ? _buildControlPanel() : _buildSetupPanel(),
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);
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}
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Widget _buildSetupPanel() {
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return SingleChildScrollView(
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padding: const EdgeInsets.all(24),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Text(
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'WebRTC 控制端',
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style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 24),
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const Text('信令服务器地址:', style: TextStyle(fontSize: 14)),
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TextField(
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controller: _serverUrlController,
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decoration: const InputDecoration(
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hintText: 'ws://192.168.100.222:8080/ws/signal',
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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: const Icon(Icons.add),
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),
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const SizedBox(height: 16),
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const Text('本机设备ID:', style: TextStyle(fontSize: 14)),
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TextField(
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controller: _deviceIdController,
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decoration: const InputDecoration(hintText: '设备ID'),
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),
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const SizedBox(height: 16),
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const Text('目标被控设备ID:', style: TextStyle(fontSize: 14)),
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TextField(
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controller: _targetController,
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decoration: const InputDecoration(hintText: '被控端设备ID'),
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),
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const SizedBox(height: 24),
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Text(
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_status,
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style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
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),
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const SizedBox(height: 24),
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SizedBox(
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width: double.infinity,
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child: ElevatedButton(
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onPressed: _connect,
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child: const Text('连接被控设备'),
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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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Widget _buildControlPanel() {
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return Stack(
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children: [
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Container(color: Colors.black),
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if (_renderer != null)
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Center(
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child: AspectRatio(
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aspectRatio: _videoAspect,
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child: Stack(
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fit: StackFit.expand,
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children: [
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RTCVideoView(
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_renderer!,
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objectFit:
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RTCVideoViewObjectFit.RTCVideoViewObjectFitContain,
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),
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RemoteTouchView(
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onTouch: (x, y) => _controller
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?.sendControlCommand(ControlCommands.touch(x, y)),
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onSwipe: (x1, y1, x2, y2, d) => _controller
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?.sendControlCommand(
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ControlCommands.swipe(x1, y1, x2, y2, d)),
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onKey: (k, a) => _controller
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?.sendControlCommand(ControlCommands.key(k, a)),
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),
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],
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),
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),
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),
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Positioned(
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top: 0,
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left: 0,
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child: Container(
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color: Colors.black54,
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padding: const EdgeInsets.all(8),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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_status,
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style: const TextStyle(color: Colors.white),
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),
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Text(
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_stats,
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style:
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const TextStyle(color: Colors.white, fontSize: 12),
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),
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],
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),
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),
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),
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Positioned(
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bottom: 16,
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right: 16,
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child: FloatingActionButton(
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onPressed: _disconnect,
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tooltip: '断开连接',
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child: const Icon(Icons.close),
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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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