# isFrontCamera method Null safety

Future<bool?> isFrontCamera()

是否使用前置摄像头

注意：此接口只支持和Android和iOS平台

## Implementation

    Future<bool?> isFrontCamera() {
      return _channel.invokeMethod('isFrontCamera');
    }

1. tencent_trtc_cloud
2. tx_device_manager
3. TXDeviceManager
4. isFrontCamera method

##### TXDeviceManager class

1. Constructors
2. TXDeviceManager
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. enableCameraAutoFocus
8. enableCameraTorch
9. getApplicationMuteState
10. getApplicationPlayVolume
11. getCameraZoomMaxRatio
12. getCurrentDevice
13. getCurrentDeviceMute
14. getCurrentDeviceVolume
15. getDevicesList
16. isAutoFocusEnabled
17. isFrontCamera
18. noSuchMethod
19. setApplicationMuteState
20. setApplicationPlayVolume
21. setAudioRoute
22. setCameraFocusPosition
23. setCameraZoomRatio
24. setCurrentDevice
25. setCurrentDeviceMute
26. setCurrentDeviceVolume
27. setSystemVolumeType
28. startMicDeviceTest
29. startSpeakerDeviceTest
30. stopMicDeviceTest
31. stopSpeakerDeviceTest
32. switchCamera
33. toString
34. Operators
35. operator ==