Flutter WebRTC视频通信插件videosdk_webrtc的使用

Flutter WebRTC视频通信插件videosdk_webrtc的使用

功能性

iOS

在您的Info.plist文件中添加以下条目，该文件位于<项目根目录>/ios/Runner/Info.plist：

<key>NSCameraUsageDescription</key>
<string>$(PRODUCT_NAME) Camera Usage!</string>
<key>NSMicrophoneUsageDescription</key>
<string>$(PRODUCT_NAME) Microphone Usage!</string>

这将允许您的应用程序访问摄像头和麦克风。

iOS注意事项

WebRTC.xframework编译版本在m104发布后不再支持iOS arm设备。因此，需要在您的项目的ios/Podfile中添加以下行：

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
    target.build_configurations.each do |config|
      # Workaround for https://github.com/flutter/flutter/issues/64502
      config.build_settings['ONLY_ACTIVE_ARCH'] = 'YES' # <= 这一行
    end
  end
end

Android

确保在您的Android Manifest文件中包含以下权限，该文件位于<项目根目录>/android/app/src/main/AndroidManifest.xml：

<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

如果需要使用蓝牙设备，请添加以下权限：

<uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30" />

默认情况下，Flutter项目模板会添加这些权限，所以可能已经存在。

还需要将构建设置设为Java 8，因为官方WebRTC jar现在使用了EglBase接口中的静态方法。只需在您的应用级build.gradle中添加以下内容：

android {
    //...
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

如果有必要，在同一build.gradle中您可能需要将defaultConfig的minSdkVersion增加到23（当前默认的Flutter生成器将其设置为16）。

完整示例代码

import 'dart:core';

import 'package:flutter/foundation.dart'
    show debugDefaultTargetPlatformOverride;
import 'package:flutter/material.dart';
import 'package:flutter_background/flutter_background.dart';
import 'package:videosdk_webrtc/flutter_webrtc.dart';
import 'package:flutter_webrtc_example/src/capture_frame_sample.dart';

import 'src/device_enumeration_sample.dart';
import 'src/get_display_media_sample.dart';
import 'src/get_user_media_sample.dart'
    if (dart.library.html) 'src/get_user_media_sample_web.dart';
import 'src/loopback_data_channel_sample.dart';
import 'src/loopback_sample_unified_tracks.dart';
import 'src/route_item.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  if (WebRTC.platformIsDesktop) {
    debugDefaultTargetPlatformOverride = TargetPlatform.fuchsia;
  } else if (WebRTC.platformIsAndroid) {
    //startForegroundService();
  }
  runApp(MyApp());
}

Future<bool> startForegroundService() async {
  final androidConfig = FlutterBackgroundAndroidConfig(
    notificationTitle: 'Title of the notification',
    notificationText: 'Text of the notification',
    notificationImportance: AndroidNotificationImportance.Default,
    notificationIcon: AndroidResource(
        name: 'background_icon',
        defType: 'drawable'), // 默认为mipmap文件夹下的ic_launcher
  );
  await FlutterBackground.initialize(androidConfig: androidConfig);
  return FlutterBackground.enableBackgroundExecution();
}

class MyApp extends StatefulWidget {
  [@override](/user/override)
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  late List<RouteItem> items;

  [@override](/user/override)
  void initState() {
    super.initState();
    _initItems();
  }

  ListBody _buildRow(context, item) {
    return ListBody(children: <Widget>[
      ListTile(
        title: Text(item.title),
        onTap: () => item.push(context),
        trailing: Icon(Icons.arrow_right),
      ),
      Divider()
    ]);
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
          appBar: AppBar(
            title: Text('Flutter-WebRTC example'),
          ),
          body: ListView.builder(
              shrinkWrap: true,
              padding: const EdgeInsets.all(0.0),
              itemCount: items.length,
              itemBuilder: (context, i) {
                return _buildRow(context, items[i]);
              })),
    );
  }

  void _initItems() {
    items = <RouteItem>[
      RouteItem(
          title: 'GetUserMedia',
          push: (BuildContext context) {
            Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (BuildContext context) => GetUserMediaSample()));
          }),
      RouteItem(
          title: 'Device Enumeration',
          push: (BuildContext context) {
            Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (BuildContext context) =>
                        DeviceEnumerationSample()));
          }),
      RouteItem(
          title: 'GetDisplayMedia',
          push: (BuildContext context) {
            Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (BuildContext context) =>
                        GetDisplayMediaSample()));
          }),
      RouteItem(
          title: 'LoopBack Sample (Unified Tracks)',
          push: (BuildContext context) {
            Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (BuildContext context) =>
                        LoopBackSampleUnifiedTracks()));
          }),
      RouteItem(
          title: 'DataChannelLoopBackSample',
          push: (BuildContext context) {
            Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (BuildContext context) =>
                        DataChannelLoopBackSample()));
          }),
      RouteItem(
          title: 'Capture Frame',
          push: (BuildContext context) {
            Navigator.push(
                context,
                MaterialPageRoute(
                    builder: (BuildContext context) =>
                        CaptureFrameSample()));
          }),
    ];
  }
}