如何监听房间内用户的麦克风和摄像头状态？

简介

在某些场景中，开发者需要根据监听房间内用户的麦克风和摄像头状态来判断远端推流设备是否正常工作，以及根据相应的 state 码初步了解设备出现问题的原因。

实现方法

ZEGO Express SDK 提供 onRemoteMicStateUpdate 和 onRemoteCameraStateUpdate 两个回调用于监听远端摄像头和麦克风的状态变化，通过此回调。

示例代码

// Objective-C
- (void)onRemoteMicStateUpdate:(ZegoRemoteDeviceState) state streamID:(NSString *) streamID;
- (void)onRemoteCameraStateUpdate:(ZegoRemoteDeviceState) state streamID:(NSString *) streamID;

// Java
public void onRemoteMicStateUpdate (String streamID, ZegoRemoteDeviceState state);
public void onRemoteCameraStateUpdate (String streamID, ZegoRemoteDeviceState state);

// cpp
public:
    void onRemoteMicStateUpdate(std::string streamID, ZegoRemoteDeviceState state) override;
    void onRemoteCameraStateUpdate(std::string streamID, ZegoRemoteDeviceState state) override;

// dart
ZegoExpressEngine.onRemoteMicStateUpdate = (String streamID, ZegoRemoteDeviceState state) {
  // 
};
ZegoExpressEngine.onRemoteCameraStateUpdate= (String streamID, ZegoRemoteDeviceState state) {
  // 
};

// c#
public delegate void OnRemoteMicStateUpdate(string streamID, ZegoRemoteDeviceState state);
public delegate void OnRemoteCameraStateUpdate(string streamID, ZegoRemoteDeviceState state);

// TypeScript
onRemoteMicStateUpdate?(streamID: string, state: zego.ZegoRemoteDeviceState): void
onRemoteCameraStateUpdate?(streamID: string, state: zego.ZegoRemoteDeviceState): void

注意事项

API 参考

• Objective-C
  • onRemoteMicStateUpdate
  • onRemoteCameraStateUpdate
• Java
  • onRemoteMicStateUpdate
  • onRemoteCameraStateUpdate