Custom Navigation Renderer for removing the icon from action bar for xamarin forms

RootNavigationRenderer.cs

[assembly: ExportRenderer(typeof(NavigationPage), typeof(CustomNavigationRenderer))]


namespace Example
{
    public class RootNavigationRenderer : NavigationRenderer
    {
        protected override void OnElementChanged(ElementChangedEventArgs e)
        {
            base.OnElementChanged(e);
            RemoveAppIconFromActionBar();
        }

        void RemoveAppIconFromActionBar()
        {
            var actionBar = ((Activity)Context).ActionBar;
            actionBar.SetIcon(new ColorDrawable(Color.Transparent.ToAndroid())); 
        }
    }
}