Vuforia打开关闭摄像机

    // 关闭相机    public void CloseCameraDevice()    {        CameraDevice.Instance.Stop();        CameraDevice.Instance.Deinit();    }    // 打开相机    public void OpenCameraDevice()    {        CameraDevice.Instance.Init(CameraDevice.CameraDirection.CAMERA_DEFAULT);        CameraDevice.Instance.Start();    }    // 关闭识别    public void CloseCloudReco()    {        CloudRecoBehaviour cloudRecoBehaviour = GameObject.FindObjectOfType(typeof(CloudRecoBehaviour)) as CloudRecoBehaviour;        cloudRecoBehaviour.CloudRecoEnabled = false;    }    // 打开识别    public void OpenCloudReco()    {        CloudRecoBehaviour cloudRecoBehaviour = GameObject.FindObjectOfType(typeof(CloudRecoBehaviour)) as CloudRecoBehaviour;        cloudRecoBehaviour.CloudRecoEnabled = true;    }