OpenUri.xaml

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="Embedding.XF.OpenUri">
    <ContentPage.Content>
        <StackLayout>
            <Label Text="Welcome to Xamarin Forms!" />
			<Button x:Name="OpenUriButton" Text="Open Uri"></Button>
        </StackLayout>
    </ContentPage.Content>
</ContentPage>