Extra bottom space/padding on iPhone X?

Question

On the iPhone X in portrait mode, if you set a bottom constraint to safe area to 0, you will end up with an extra space at the bottom of the screen. How do you get programma

Answer 1

If suddenly you have no view, for example, CollectionViewLayout, you can retrieve it from Window too:

private static var itemHeight: CGFloat {
    guard #available(iOS 11.0, *),
        let window = UIApplication.shared.keyWindow else {
            return Constants.itemHeight
    }
    return Constants.itemHeight - window.safeAreaInsets.bottom
}