public class CameraView : View
{
  public static readonly BindableProperty IsBusyProperty;
  public static readonly BindableProperty IsAvailableProperty;
  public static readonly BindableProperty CameraOptionsProperty;
  public static readonly BindableProperty CaptureModeProperty;
  public static readonly BindableProperty VideoStabilizationProperty;
  public static readonly BindableProperty FlashModeProperty;
  public static readonly BindableProperty ZoomProperty;
  public static readonly BindableProperty MaxZoomProperty;
  
  public event EventHandler<bool>? OnAvailable;
  public event EventHandler<MediaCapturedEventArgs>? MediaCaptured;
  public event EventHandler<string>? MediaCaptureFailed;
  
  public ICommand? ShutterCommand { get; }
  
  public bool IsBusy { get; set; }
  public bool IsAvailable { get; set; }
  public CameraOptions CameraOptions { get; set; }
  public CameraCaptureMode CaptureMode { get; set; }
  public bool VideoStabilization { get; set; }
  public CameraFlashMode FlashMode { get; set; }
  public double Zoom { get; set; }
  public double MaxZoom { get; set; }
  
  public void Shutter();
}

class MyPage : ContentPage
{
  public MyPage()
  {
    Content = new CameraView
    {
      CaptureMode = CameraCaptureMode.Video,
      FlashMode = CameraFlashMode.Off,
    }.FillAndExpand()
     .Invoke(cameraView => cameraView.MediaCaptured += HandleMediaCaptured);
  }

  void HandleMediaCaptured(object? sender, MediaCapturedEventArgs e)
  {
    //...
  }
}