public partial class MyNavigation : Shell
{
	public MyNavigation()
	{
		Items.Add( new TabBar()
		{
			Items =
			{
				new ShellContent
				{
					ContentTemplate = new DataTemplate( typeof( HomeView ) ),
					Icon = ImageSource.FromResource( "Serenocalm.Forms.Resources.Home.png" ),
					Route = "Home"
					},
				new ShellContent
				{
					ContentTemplate = new DataTemplate( typeof( SettingsView ) ),
					Icon = ImageSource.FromResource( "Serenocalm.Forms.Resources.Settings.png" ),
					Route = "Settings" }
			}
		});
		Routing.RegisterRoute( "ChildScreenOne", typeof( ChildScreenOne ) );
		Routing.RegisterRoute( "ChildScreenTwo", typeof( ChildScreenTwo ) );
		Style = ControlStyles.Shell_BaseStyle;
	}
}

public class HomeView : ContentPage
{
	public HomeView()
	{
		Style = ControlStyles.ContentPage_BaseStyle;
		Title = "Home";
		Button _button = new Button { Text = "Goto Screen One" };
		Grid grid = new Grid()
		{
			RowDefinitions =
			{
				new RowDefinition { Height = GridLength.Star },
				new RowDefinition { Height = GridLength.Auto },
				new RowDefinition { Height = GridLength.Star }
			},
			ColumnDefinitions =
			{
				new ColumnDefinition { Width = GridLength.Star },
				new ColumnDefinition { Width = GridLength.Auto },
				new ColumnDefinition { Width = GridLength.Star }
			}
		};
		grid.Children.Add( _button, 1, 1 );
		_button.Clicked += _button_Clicked;
		Content = grid;
	}

	private async void _button_Clicked( Object sender, EventArgs e )
	{
		await Shell.Current.GoToAsync( "ChildScreenOne" );
	}
}

public class ChildScreenOne : ContentPage
{
	public ChildScreenOne()
	{
		Title = "Child Screen One";
		Style = ControlStyles.ContentPage_BaseStyle;
		Button _button = new Button { Text = "Goto Screen Two" };
		Grid grid = new Grid()
		{
			RowDefinitions =
			{
				new RowDefinition { Height = GridLength.Star },
				new RowDefinition { Height = GridLength.Auto },
				new RowDefinition { Height = GridLength.Star }
			},
			ColumnDefinitions =
			{
				new ColumnDefinition { Width = GridLength.Star },
				new ColumnDefinition { Width = GridLength.Auto },
				new ColumnDefinition { Width = GridLength.Star }
			}
		};
		grid.Children.Add( _button, 1, 1 );
		_button.Clicked += _button_Clicked;
		Content = grid;
	}

	private async void _button_Clicked( Object sender, EventArgs e )
	{
		await Shell.Current.GoToAsync( "ChildScreenTwo" );
	}
}

public class ChildScreenTwo : ContentPage
{
	public ChildScreenTwo()
	{
		Title = "Child Screen Two";
		Style = ControlStyles.ContentPage_BaseStyle;
		Button _button = new Button { Text = "Goto Home" };
		Grid grid = new Grid()
		{
			RowDefinitions =
			{
				new RowDefinition { Height = GridLength.Star },
				new RowDefinition { Height = GridLength.Auto },
				new RowDefinition { Height = GridLength.Star }
			},
			ColumnDefinitions =
			{
				new ColumnDefinition { Width = GridLength.Star },
				new ColumnDefinition { Width = GridLength.Auto },
				new ColumnDefinition { Width = GridLength.Star }
			}
		};
		grid.Children.Add( _button, 1, 1 );
		_button.Clicked += _button_Clicked;
		Content = grid;
		Shell.SetPresentationMode( this, PresentationMode.ModalAnimated );
	}

	private async void _button_Clicked( Object sender, EventArgs e )
	{
		await Shell.Current.GoToAsync( @"\\Home" );
	}
}