<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="NavigationPlay.PageThree"
  Title="Page Three">
  <Label Text="Page 3" VerticalOptions="Center" HorizontalOptions="Center" />
  <Button Text="Switch to Alternate World" Clicked="OnSwitchWorldClicked"/>
</ContentPage>