Xamarin.Forms Android NavigationPage Animation Customize

MyNavRenderer.cs

using XFANavigationSlide.Droid;
using Application = Android.App.Application;
using FragmentTransaction = Android.Support.V4.App.FragmentTransaction;
using View = Android.Views.View;

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

namespace XFANavigationSlide.Droid
{
	public class MyNavRenderer : NavigationPageRenderer
	{
		protected override void SetupPageTransition(FragmentTransaction transaction, bool isPush)
		{
			base.SetupPageTransition(transaction, isPush);
			if (isPush) transaction.SetCustomAnimations(Resource.Animation.enter_from_right, Resource.Animation.exit_to_left);
			else
				transaction.SetCustomAnimations(Resource.Animation.enter_from_left, Resource.Animation.exit_to_right);
		}
	}
}