Shadow for side menu using Xamarin.Forms MasterDetailPage

MainMasterDetailPage.cs

public class MainMasterDetailPage : MasterDetailPage
{
	public MainMasterDetailPage ()
	{
		Detail = new ShadowNavigationPage();
	}
}

PanelShadowPanel.cs

// Credits goes to https://github.com/xamarin/xamarin-forms-samples/blob/master/Effects/ShadowEffect/iOS/LabelShadowEffect.cs

[assembly: ResolutionGroupName("MyProject")]
[assembly: ExportEffect(typeof(PanelShadowEffect), "PanelShadowEffect")]
namespace MyProject.iOS
{
	public class PanelShadowEffect : PlatformEffect
	{
		protected override void OnAttached()
		{
			try
			{
				var effect = (ShadowEffect)Element.Effects.FirstOrDefault(e => e is ShadowEffect);
				if (effect == null) {
					return;
				}

				var control = Control;
				if (control == null)
				{
					var renderer = Platform.GetRenderer((VisualElement)Element);
					control = renderer.ViewController.View;
				}

				control.Layer.CornerRadius = effect.Radius;
				control.Layer.ShadowColor = effect.Color.ToCGColor();
				control.Layer.ShadowOffset = new CGSize(effect.DistanceX, effect.DistanceY);
				control.Layer.ShadowOpacity = 1.0f;
			}
			catch (Exception ex)
			{
				Console.WriteLine("Cannot set property on attached control. Error: {0}", ex.Message);
			}
		}

		protected override void OnDetached()
		{
		}
	}
}

ShadowEffect.cs

// Credits goes to https://github.com/xamarin/xamarin-forms-samples/blob/master/Effects/ShadowEffect/EffectsDemo/ShadowEffect.cs

public class ShadowEffect : RoutingEffect
{
	public float Radius { get; set; }

	public Color Color { get; set; }

	public float DistanceX { get; set; }

	public float DistanceY { get; set; }

	public ShadowEffect() : base("MyProject.PanelShadowEffect")
	{
	}
}

ShadowNavigationPage.cs

public class ShadowNavigationPage : NavigationPage
{
	protected override void OnAppearing()
	{
		base.OnAppearing();

		Effects.Add(new Effects.ShadowEffect()
		{
			Radius = 5,
			DistanceX = 0,
			DistanceY = 0,
			Color = Color.Black
		});
	}
}

Seems that in newest versions of forms for some reason Control property of PlatformEffect class is returning a null value I make it works in the next way by using Container property instead

protected override void OnAttached()
        {
            try
            {
                var effect = (ShadowEffect)Element.Effects.FirstOrDefault(e => e is ShadowEffect);
                if (effect == null)
                {
                    return;
                }
                var control = Control;
                if (control == null)
                {
                    control = Container;
                    if (control == null)
                    {
                        var renderer = Xamarin.Forms.Platform.iOS.Platform.GetRenderer((VisualElement)Element);
                        if (renderer == null)
                        {
                            return;
                        }
                        control = renderer.ViewController.View;
                    }
                }
                control.Layer.CornerRadius = effect.Radius;
                control.Layer.ShadowColor = effect.Color.ToCGColor();
                control.Layer.ShadowOffset = new CGSize(effect.DistanceX, effect.DistanceY);
                control.Layer.ShadowOpacity = 1.0f;
            }
            catch (Exception ex)
            {
                Console.WriteLine("Cannot set property on attached control. Error: {0}", ex.Message);
            }
        }