MessagingCenterEx.cs

using System;

namespace Xamarin.Forms
{
	public static class MessagingCenterEx
	{
		class MessagingCenterSender 
		{
			public static MessagingCenterSender Instance = new MessagingCenterSender();
		}

		public static void Send<TArgs> (TArgs args)
		{
			MessagingCenter.Send<MessagingCenterSender, TArgs> (MessagingCenterSender.Instance, string.Empty, args);
		}

		public static void Subscribe<TArgs> (object subscriber, Action<TArgs> received)
		{
			MessagingCenter.Subscribe<MessagingCenterSender, TArgs> (subscriber, string.Empty, (sender, args) => received(args));
		}

		public static void Unsubscribe<TArgs> (object subscriber)
		{
			MessagingCenter.Unsubscribe <MessagingCenterSender, TArgs> (subscriber, string.Empty);
		}
	}
}