Xamarin Message Center

using System;
using System.Collections.ObjectModel;
using System.Collections.Generic;
using System.Threading.Tasks;

using Xamarin.Forms;
using Xamarin.Essentials;

using UrbanAirship.NETStandard;
using UrbanAirship.NETStandard.MessageCenter;
using AirshipBindings.NETStandard.Abstractions;

namespace SampleApp  
{

  public partial class MessageCenterViewController : ContentPage 
  {

    public MessageCenterViewController() 
    {
      InitializeComponent();
    }

    protected override void OnAppearing()
    {
      Airship.Instance.InboxMessages(messages =>
      {
        Console.WriteLine("Inbox Messages:");

        foreach (Message message in messages)
        {
          Console.WriteLine("---");
          Console.WriteLine(message.Title);
          Console.WriteLine(message.Unread);
          Console.WriteLine(message.SentDate);
        }
        Console.WriteLine("---");

        Device.BeginInvokeOnMainThread(() =>
        {
          listView.ItemsSource = messages;
        });
      });
    }

    private async void listView_ItemSelected(Object sender, SelectedItemChangedEventArgs e)
    {
      var message = e.SelectedItem as Message;
      var messagePage = new MessagePage();
      messagePage.MessageId = message.MessageId;
      messagePage.LoadStarted += onLoadStarted;
      messagePage.Loaded += onLoaded;
      messagePage.Closed += onClosed;
      messagePage.LoadFailed += onLoadFailed;
      await Navigation.PushAsync(messagePage);
    }

    private void onLoadStarted(object sender, MessageLoadStartedEventArgs e)
    {
      Console.WriteLine("onLoadStarted was reached.");
    }

    private void onLoaded(object sender, MessageLoadedEventArgs e)
    {
      Console.WriteLine("onLoaded was reached.");
    }

    private void onClosed(object sender, MessageClosedEventArgs e)
    {
      Console.WriteLine("onClosed was reached.");
      Navigation.PopAsync();
    }

    private void onLoadFailed(object sender, MessageLoadFailedEventArgs e)
    {
      Console.WriteLine("onLoadFailed was reached.");
    }
  }
}