title: Xamarin Forms Android OnAppearing Not Triggering After PopModalAsync
body: <p>Is there a work around for Android not triggering after PopModalAsync is called while still using a Modal page. Here is an example:</p>
  
  <pre><code>using System;
  using Xamarin.Forms;
  
  namespace XamarinForms
  {
      public class OnAppearingBug : ContentPage
      {
          Label label;
          public OnAppearingBug ()
          {
              label = new Label {
                  Text = "Page"
              };
              Button button = new Button {
                  Text = "PushModal"
              };
              button.Clicked += (sender, e) =&gt; Navigation.PushModalAsync (new PopModalBug ());
  
              Content = new StackLayout {
                  Children = { label, button }
              };
          }
          protected override void OnAppearing(){
              label.Text = "OnAppearing";
          }
      }
  }
  
  using System;
  using Xamarin.Forms;
  
  namespace XamarinForms
  {
      public class PopModalBug : ContentPage
      {
          public PopModalBug ()
          {
              Button button = new Button {
                  Text = "Pop Back"
              };
              //Bug: This will not trigger OnAppearing on Android
              button.Clicked += (sender, e) =&gt; Navigation.PopModalAsync();
  
              Content = new StackLayout {
                  Children = { button }
              };
          }
      }
  }
  </code></pre>