OnVideoDeviceStateChangedType typedef Null safety

OnVideoDeviceStateChangedType = void Function(String deviceId, VideoDeviceType deviceType, MediaDeviceState deviceState, MediaDeviceError deviceError)

deviceId：设备 ID

deviceType：设备类型

deviceState：设备状态

deviceError：设备错误类型

Implementation

typedef OnVideoDeviceStateChangedType = void Function(
    String deviceId,
    VideoDeviceType deviceType,
    MediaDeviceState deviceState,
    MediaDeviceError deviceError);