Monotouch: ViewDidLoad, ViewWillAppear, ViewDidAppear

gistfile1.cs

public class Level2ViewController : UIViewController
{
    	public override void ViewDidLoad()
	{
		Title = "Level 2";
		UILabel label = new UILabel();
		label.Text = "Level2ViewController";
		label.Frame = new System.Drawing.RectangleF(100, 100, 100, 100);
		View.AddSubview(label);
		
		// A new toolbar with items
		UIBarButtonItem item = new UIBarButtonItem();
		item.Title = "Another item";
		item.Clicked += delegate(object sender, EventArgs e)
		{
			Level3ViewController controller = new Level3ViewController();
			NavigationController.PushViewController(controller, true);
		};

		ToolbarItems = new UIBarButtonItem[] { item };
		base.ViewDidLoad();
	}

	public override void ViewWillAppear(bool animated)
	{
		// Re-show the toolbar here for consistency
		NavigationController.SetToolbarHidden(false, true);
		base.ViewWillAppear(animated);
	}
}