public CameraImageListener(CameraFeedRenderer renderer)
 {
     _renderer = renderer;
 }
 public CameraCaptureListener(CameraFeedRenderer renderer)
 {
     _renderer = renderer;
 }
 public CameraStateCallback(CameraFeedRenderer renderer)
 {
     _renderer = renderer;
 }
 public CameraCaptureSessionCallback(CameraFeedRenderer renderer)
 {
     _renderer = renderer;
 }
 public CameraPageOrientationEventListener(CameraFeedRenderer renderer, Context context, global::Android.Hardware.SensorDelay sensorDelay) : base(context, sensorDelay)
 {
     _renderer        = renderer;
     _lastOrientation = renderer.windowManager.DefaultDisplay.Rotation;
 }