Add a UIView above all, even the navigation bar

Question

I want to display, above any other views, even the navigation bar, a kind of \"pop-up\" view that looks like this:

• full screen black background with a 0.5 alph

Answer 1

UIApplication.shared.keyWindow?.insertSubview(yourView, at: 1)

This method works with xcode 9.4 , iOS 11.4