# TXDeviceManager constructor Null safety

TXDeviceManager(

1. dynamic channel

)

## Implementation

    TXDeviceManager(channel) {
      _channel = channel;
    }

1. tencent_trtc_cloud_beauty
2. tx_device_manager
3. TXDeviceManager
4. TXDeviceManager constructor

##### TXDeviceManager class

1. Constructors
2. TXDeviceManager
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. enableCameraAutoFocus
8. enableCameraTorch
9. getCameraZoomMaxRatio
10. isAutoFocusEnabled
11. isFrontCamera
12. noSuchMethod
13. setAudioRoute
14. setCameraFocusPosition
15. setCameraZoomRatio
16. setSystemVolumeType
17. switchCamera
18. toString
19. Operators
20. operator ==