From Xojo Documentation
The currently displayed screen. You can use this property to access the current screen so that you can change its content.
The screen is typically the base (first) view that was displayed in a phone app. It may also refer to a Split View or a Tab screen.
In most cases you will want to use the iOSView.PushTo method to display a new view over this initial view. This retains the view hierarchy and allows the back button to go back to the previous view.
There may be times when you need to replace the entire screen and do not want the view hierarchy. For example, you may have an initial login view that is displayed but after the user successfully logs in and you want to replace that view with another view so that the back button does not return the user to the login view.
You can directly change the screen content like this to swap in a new view: