How to dispose a view which has been created with Platform.CreateRenderer ( )

Question

I'm looking for the correct way to dispose a UIView (iOS) or ViewGroup (Android) which has been created by Platform.CreateRenderer(...).

In short, I use this as a extension to a ListView and want to provide a Xamarin.Forms.View which I use while the list is refreshing.

public class MyListView : ListView
{
    //refresh view which will be shown while refreshing the list
    public View RefreshContent { get; set; }
}

In iOS I'm currently doing this in my MyListViewRenderer:

this.renderer = Platform.CreateRenderer(this.Element.RefreshContent);
Platform.SetRenderer(this.Element.RefreshContent, this.renderer);

this.AddSubview(this.renderer.NativeView);

And to dispose I try this:

this.renderer?.NativeView?.RemoveFromSuperview();
this.renderer?.NativeView?.Dispose();
this.renderer?.Dispose();
this.renderer = null;

Does that dispose anything, including further subviews etc.? What about Android?