feat: 添加 WebSocket、WebRTC 与 Protobuf 支持

lib/generated/user.pb.dart

@@ -0,0 +1,111 @@
+// This is a generated file - do not edit.
+//
+// Generated from user.proto.
+
+// @dart = 3.3
+
+// ignore_for_file: annotate_overrides, camel_case_types, comment_references
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: curly_braces_in_flow_control_structures
+// ignore_for_file: deprecated_member_use_from_same_package, library_prefixes
+// ignore_for_file: non_constant_identifier_names, prefer_relative_imports
+
+import 'dart:core' as $core;
+
+import 'package:protobuf/protobuf.dart' as $pb;
+
+export 'package:protobuf/protobuf.dart' show GeneratedMessageGenericExtensions;
+
+class UserInfo extends $pb.GeneratedMessage {
+  factory UserInfo({
+    $core.int? id,
+    $core.String? name,
+    $core.String? email,
+    $core.bool? isAdmin,
+  }) {
+    final result = create();
+    if (id != null) result.id = id;
+    if (name != null) result.name = name;
+    if (email != null) result.email = email;
+    if (isAdmin != null) result.isAdmin = isAdmin;
+    return result;
+  }
+
+  UserInfo._();
+
+  factory UserInfo.fromBuffer($core.List<$core.int> data,
+          [$pb.ExtensionRegistry registry = $pb.ExtensionRegistry.EMPTY]) =>
+      create()..mergeFromBuffer(data, registry);
+  factory UserInfo.fromJson($core.String json,
+          [$pb.ExtensionRegistry registry = $pb.ExtensionRegistry.EMPTY]) =>
+      create()..mergeFromJson(json, registry);
+
+  static final $pb.BuilderInfo _i = $pb.BuilderInfo(
+      _omitMessageNames ? '' : 'UserInfo',
+      package: const $pb.PackageName(_omitMessageNames ? '' : 'my_project'),
+      createEmptyInstance: create)
+    ..aI(1, _omitFieldNames ? '' : 'id')
+    ..aOS(2, _omitFieldNames ? '' : 'name')
+    ..aOS(3, _omitFieldNames ? '' : 'email')
+    ..aOB(4, _omitFieldNames ? '' : 'isAdmin')
+    ..hasRequiredFields = false;
+
+  @$core.Deprecated('See https://github.com/google/protobuf.dart/issues/998.')
+  UserInfo clone() => deepCopy();
+  @$core.Deprecated('See https://github.com/google/protobuf.dart/issues/998.')
+  UserInfo copyWith(void Function(UserInfo) updates) =>
+      super.copyWith((message) => updates(message as UserInfo)) as UserInfo;
+
+  @$core.override
+  $pb.BuilderInfo get info_ => _i;
+
+  @$core.pragma('dart2js:noInline')
+  static UserInfo create() => UserInfo._();
+  @$core.override
+  UserInfo createEmptyInstance() => create();
+  @$core.pragma('dart2js:noInline')
+  static UserInfo getDefault() =>
+      _defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<UserInfo>(create);
+  static UserInfo? _defaultInstance;
+
+  @$pb.TagNumber(1)
+  $core.int get id => $_getIZ(0);
+  @$pb.TagNumber(1)
+  set id($core.int value) => $_setSignedInt32(0, value);
+  @$pb.TagNumber(1)
+  $core.bool hasId() => $_has(0);
+  @$pb.TagNumber(1)
+  void clearId() => $_clearField(1);
+
+  @$pb.TagNumber(2)
+  $core.String get name => $_getSZ(1);
+  @$pb.TagNumber(2)
+  set name($core.String value) => $_setString(1, value);
+  @$pb.TagNumber(2)
+  $core.bool hasName() => $_has(1);
+  @$pb.TagNumber(2)
+  void clearName() => $_clearField(2);
+
+  @$pb.TagNumber(3)
+  $core.String get email => $_getSZ(2);
+  @$pb.TagNumber(3)
+  set email($core.String value) => $_setString(2, value);
+  @$pb.TagNumber(3)
+  $core.bool hasEmail() => $_has(2);
+  @$pb.TagNumber(3)
+  void clearEmail() => $_clearField(3);
+
+  @$pb.TagNumber(4)
+  $core.bool get isAdmin => $_getBF(3);
+  @$pb.TagNumber(4)
+  set isAdmin($core.bool value) => $_setBool(3, value);
+  @$pb.TagNumber(4)
+  $core.bool hasIsAdmin() => $_has(3);
+  @$pb.TagNumber(4)
+  void clearIsAdmin() => $_clearField(4);
+}
+
+const $core.bool _omitFieldNames =
+    $core.bool.fromEnvironment('protobuf.omit_field_names');
+const $core.bool _omitMessageNames =
+    $core.bool.fromEnvironment('protobuf.omit_message_names');

lib/generated/user.pbenum.dart

@@ -0,0 +1,11 @@
+// This is a generated file - do not edit.
+//
+// Generated from user.proto.
+
+// @dart = 3.3
+
+// ignore_for_file: annotate_overrides, camel_case_types, comment_references
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: curly_braces_in_flow_control_structures
+// ignore_for_file: deprecated_member_use_from_same_package, library_prefixes
+// ignore_for_file: non_constant_identifier_names, prefer_relative_imports

lib/generated/user.pbjson.dart

@@ -0,0 +1,32 @@
+// This is a generated file - do not edit.
+//
+// Generated from user.proto.
+
+// @dart = 3.3
+
+// ignore_for_file: annotate_overrides, camel_case_types, comment_references
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: curly_braces_in_flow_control_structures
+// ignore_for_file: deprecated_member_use_from_same_package, library_prefixes
+// ignore_for_file: non_constant_identifier_names, prefer_relative_imports
+// ignore_for_file: unused_import
+
+import 'dart:convert' as $convert;
+import 'dart:core' as $core;
+import 'dart:typed_data' as $typed_data;
+
+@$core.Deprecated('Use userInfoDescriptor instead')
+const UserInfo$json = {
+  '1': 'UserInfo',
+  '2': [
+    {'1': 'id', '3': 1, '4': 1, '5': 5, '10': 'id'},
+    {'1': 'name', '3': 2, '4': 1, '5': 9, '10': 'name'},
+    {'1': 'email', '3': 3, '4': 1, '5': 9, '10': 'email'},
+    {'1': 'is_admin', '3': 4, '4': 1, '5': 8, '10': 'isAdmin'},
+  ],
+};
+
+/// Descriptor for `UserInfo`. Decode as a `google.protobuf.DescriptorProto`.
+final $typed_data.Uint8List userInfoDescriptor = $convert.base64Decode(
+    'CghVc2VySW5mbxIOCgJpZBgBIAEoBVICaWQSEgoEbmFtZRgCIAEoCVIEbmFtZRIUCgVlbWFpbB'
+    'gDIAEoCVIFZW1haWwSGQoIaXNfYWRtaW4YBCABKAhSB2lzQWRtaW4=');

lib/main.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'test_page.dart';
 
 void main() {
   runApp(const MyApp());
@@ -109,6 +110,16 @@ class _MyHomePageState extends State<MyHomePage> {
               '$_counter',
               style: Theme.of(context).textTheme.headlineMedium,
             ),
+            const SizedBox(height: 20),
+            ElevatedButton(
+              onPressed: () {
+                Navigator.push(
+                  context,
+                  MaterialPageRoute(builder: (context) => const TestPage()),
+                );
+              },
+              child: const Text('Go to WebSocket & WebRTC Test'),
+            ),
           ],
         ),
       ),

lib/test_page.dart

@@ -0,0 +1,131 @@
+import 'package:flutter/material.dart';
+import 'package:web_socket_channel/web_socket_channel.dart';
+import 'package:flutter_webrtc/flutter_webrtc.dart';
+
+class TestPage extends StatefulWidget {
+  const TestPage({super.key});
+
+  @override
+  State<TestPage> createState() => _TestPageState();
+}
+
+class _TestPageState extends State<TestPage> {
+  final TextEditingController _controller = TextEditingController();
+  WebSocketChannel? _channel;
+  final List<String> _messages = [];
+
+  final RTCVideoRenderer _localRenderer = RTCVideoRenderer();
+
+  @override
+  void initState() {
+    super.initState();
+    initRenderers();
+  }
+
+  Future<void> initRenderers() async {
+    await _localRenderer.initialize();
+  }
+
+  @override
+  void dispose() {
+    _channel?.sink.close();
+    _localRenderer.dispose();
+    super.dispose();
+  }
+
+  void _connectWebSocket() {
+    final url = _controller.text.trim();
+    if (url.isNotEmpty) {
+      setState(() {
+        _channel = WebSocketChannel.connect(Uri.parse(url));
+        _messages.clear();
+      });
+    }
+  }
+
+  void _sendMessage() {
+    if (_channel != null) {
+      _channel!.sink.add('Hello from Flutter!');
+    }
+  }
+
+  Future<void> _startWebRTC() async {
+    final Map<String, dynamic> mediaConstraints = {
+      'audio': true,
+      'video': {
+        'facingMode': 'user',
+      },
+    };
+
+    try {
+      MediaStream stream = await navigator.mediaDevices.getUserMedia(mediaConstraints);
+      _localRenderer.srcObject = stream;
+      setState(() {});
+    } catch (e) {
+      print('Error getting user media: $e');
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('WebSocket & WebRTC Test'),
+      ),
+      body: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          children: [
+            TextField(
+              controller: _controller,
+              decoration: const InputDecoration(
+                labelText: 'WebSocket URL (e.g. ws://echo.websocket.org)',
+              ),
+            ),
+            Row(
+              children: [
+                ElevatedButton(
+                  onPressed: _connectWebSocket,
+                  child: const Text('Connect'),
+                ),
+                const SizedBox(width: 10),
+                ElevatedButton(
+                  onPressed: _sendMessage,
+                  child: const Text('Send Message'),
+                ),
+              ],
+            ),
+            Expanded(
+              child: StreamBuilder(
+                stream: _channel?.stream,
+                builder: (context, snapshot) {
+                  if (snapshot.hasData) {
+                    _messages.add(snapshot.data.toString());
+                  }
+                  return ListView.builder(
+                    itemCount: _messages.length,
+                    itemBuilder: (context, index) {
+                      return ListTile(
+                        title: Text(_messages[index]),
+                      );
+                    },
+                  );
+                },
+              ),
+            ),
+            const Divider(),
+            const Text('WebRTC Test:'),
+            ElevatedButton(
+              onPressed: _startWebRTC,
+              child: const Text('Start Camera'),
+            ),
+            SizedBox(
+              height: 200,
+              child: RTCVideoView(_localRenderer),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}