React Native集成Amazon Chime SDK：屏幕共享与会议录制求助

一、屏幕共享功能集成（iOS端） #

• 1. 配置系统权限
  在项目Info.plist中添加屏幕录制权限描述：

  <key>NSScreenCaptureUsageDescription</key>
  <string>需要您的权限以进行屏幕共享</string>
  

• 2. 扩展MeetingObservers回调
  在MeetingObservers.h中新增屏幕共享状态回调声明：

  @protocol MeetingObserversDelegate
  // 保留原有回调方法
  - (void)screenShareDidStart;
  - (void)screenShareDidStop;
  - (void)screenShareDidFailWithError:(NSError *)error;
  @end
  

  在MeetingObservers.m中监听SDK的屏幕共享事件：

  - (void)audioVideoDidStartScreenShare:(id<AVSDeviceSource>)source {
      [self.delegate screenShareDidStart];
  }
  
  - (void)audioVideoDidStopScreenShare:(id<AVSDeviceSource>)source {
      [self.delegate screenShareDidStop];
  }
  
  - (void)audioVideoDidFailToStartScreenShareWithError:(NSError *)error {
      [self.delegate screenShareDidFailWithError:error];
  }
  

• 3. NativeBridge层实现控制逻辑
  在NativeMobileSDKBridge.h添加方法声明：

  - (void)startScreenShare;
  - (void)stopScreenShare;
  

  在NativeMobileSDKBridge.m中实现方法，并绑定事件回调：

  - (instancetype)init {
      self = [super init];
      if (self) {
          // 保留原有初始化代码
          self.meetingObservers.delegate = self;
      }
      return self;
  }
  
  - (void)startScreenShare {
      AVSDeviceSelectionConfiguration *config = [[AVSDeviceSelectionConfiguration alloc] init];
      [self.audioVideo startScreenShareWithConfiguration:config completionHandler:^(NSError * _Nullable error) {
          if (error) {
              [self sendEventWithName:@"ScreenShareError" body:@{@"error": error.localizedDescription}];
          }
      }];
  }
  
  - (void)stopScreenShare {
      [self.audioVideo stopScreenShare];
  }
  
  // 实现MeetingObserversDelegate的屏幕共享回调
  - (void)screenShareDidStart {
      [self sendEventWithName:@"ScreenShareStarted" body:nil];
  }
  
  - (void)screenShareDidStop {
      [self sendEventWithName:@"ScreenShareStopped" body:nil];
  }
  
  - (void)screenShareDidFailWithError:(NSError *)error {
      [self sendEventWithName:@"ScreenShareError" body:@{@"error": error.localizedDescription}];
  }
  

• 4. React Native层调用与监听

  import { NativeModules, NativeEventEmitter } from 'react-native';
  
  const { NativeMobileSDKBridge } = NativeModules;
  const screenShareEmitter = new NativeEventEmitter(NativeMobileSDKBridge);
  
  // 启动屏幕共享
  const startScreenShare = () => NativeMobileSDKBridge.startScreenShare();
  // 停止屏幕共享
  const stopScreenShare = () => NativeMobileSDKBridge.stopScreenShare();
  
  // 监听状态变更
  useEffect(() => {
    const startedListener = screenShareEmitter.addListener('ScreenShareStarted', () => {
      console.log('屏幕共享已启动');
    });
    const stoppedListener = screenShareEmitter.addListener('ScreenShareStopped', () => {
      console.log('屏幕共享已停止');
    });
    const errorListener = screenShareEmitter.addListener('ScreenShareError', (error) => {
      console.error('屏幕共享失败:', error);
    });
  
    return () => {
      startedListener.remove();
      stoppedListener.remove();
      errorListener.remove();
    };
  }, []);
  

二、会议录制功能集成（iOS端） #

• 1. 扩展MeetingObservers录制回调
  在MeetingObservers.h中新增录制状态回调：

  @protocol MeetingObserversDelegate
  // 保留原有回调方法
  - (void)recordingDidStart;
  - (void)recordingDidStop;
  - (void)recordingDidFailWithError:(NSError *)error;
  @end
  

  在MeetingObservers.m中监听SDK录制事件：

  - (void)meetingSessionDidStartRecording {
      [self.delegate recordingDidStart];
  }
  
  - (void)meetingSessionDidStopRecording {
      [self.delegate recordingDidStop];
  }
  
  - (void)meetingSessionDidFailToStartRecordingWithError:(NSError *)error {
      [self.delegate recordingDidFailWithError:error];
  }
  

• 2. NativeBridge层实现录制控制
  在NativeMobileSDKBridge.h添加方法声明：

  - (void)startRecording;
  - (void)stopRecording;
  

  在NativeMobileSDKBridge.m中实现方法并绑定回调：

  - (void)startRecording {
      [self.meetingSession startRecordingWithCompletionHandler:^(NSError * _Nullable error) {
          if (error) {
              [self sendEventWithName:@"RecordingError" body:@{@"error": error.localizedDescription}];
          }
      }];
  }
  
  - (void)stopRecording {
      [self.meetingSession stopRecordingWithCompletionHandler:^(NSError * _Nullable error) {
          if (error) {
              [self sendEventWithName:@"RecordingError" body:@{@"error": error.localizedDescription}];
          }
      }];
  }
  
  // 实现MeetingObserversDelegate的录制回调
  - (void)recordingDidStart {
      [self sendEventWithName:@"RecordingStarted" body:nil];
  }
  
  - (void)recordingDidStop {
      [self sendEventWithName:@"RecordingStopped" body:nil];
  }
  
  - (void)recordingDidFailWithError:(NSError *)error {
      [self sendEventWithName:@"RecordingError" body:@{@"error": error.localizedDescription}];
  }
  

• 3. React Native层调用与监听

  // 启动录制
  const startRecording = () => NativeMobileSDKBridge.startRecording();
  // 停止录制
  const stopRecording = () => NativeMobileSDKBridge.stopRecording();
  
  // 监听录制状态
  useEffect(() => {
    const startedListener = screenShareEmitter.addListener('RecordingStarted', () => {
      console.log('会议录制已启动');
    });
    const stoppedListener = screenShareEmitter.addListener('RecordingStopped', () => {
      console.log('会议录制已停止');
    });
    const errorListener = screenShareEmitter.addListener('RecordingError', (error) => {
      console.error('录制失败:', error);
    });
  
    return () => {
      startedListener.remove();
      stoppedListener.remove();
      errorListener.remove();
    };
  }, []);
  

三、关键注意事项 #

• 确保项目依赖的Amazon Chime SDK版本包含屏幕共享与录制模块，iOS端需引入AmazonChimeSDK和AmazonChimeSDKMedia框架。
• 屏幕共享需用户手动授权，调用前可通过系统API检查权限状态。
• 会议录制仅对会议主持人开放，调用前需确认当前用户权限。

内容的提问来源于stack exchange，提问作者MonkeyDLuffy