是否可以禁用CATransition的背景淡入淡出？

Question

Given the following:

let transition = CATransition()
    transition.duration = 0.5
    transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionDefault)
    transition.type = kCATransitionMoveIn
    transition.subtype = kCATransitionFromTop
    navigationController.view.layer.add(transition, forKey: kCATransition)
    navigationController.pushViewController(viewController, animated: false)

viewController transitions from the bottom to the top just like a modal transition/segue. However, as the view controller makes its way up, the background begins to fade to black (to cover the old view). Is there any way to disable that fade from occurring?

Answer 1

回答我自己的问题：你只需要改变UIWindow的颜色