black screen under transition swift animation

Question

I have the following code, when I open the new screen, the old screen turn to black screen I need that no have that black screen, just like defualt navigation that is like gray color, thanks

let transition = CATransition()
transition.duration = 1.0
transition.type = CATransitionType.moveIn
transition.subtype = CATransitionSubtype.fromTop
view.window?.layer.add(transition, forKey: nil)
viewControllerToPresent.modalPresentationStyle = .overFullScreen

video

the last part on the top

Answer 1

Add this transition to view.layer, not to window.layer. It fix your problem