ios-push与present转场动画模拟

push模拟present转场动画

extension UINavigationController{
    func pushViewControllerDownToUp(controller: UIViewController) {
        let transition = CATransition()
        transition.duration = 0.5
        transition.type = CATransitionType.push
        transition.subtype = CATransitionSubtype.fromTop
        transition.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
        view.window?.layer.add(transition, forKey: kCATransition)
        pushViewController(controller, animated: false)
    }
    func popViewControllerTopToBottom() {
        let transition = CATransition()
        transition.duration = 0.5
        transition.type = CATransitionType.push
        transition.subtype = CATransitionSubtype.fromBottom
        transition.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
        view.window?.layer.add(transition, forKey: kCATransition)
        popViewController(animated: false)
    }
}

present模拟push转场动画

extension UINavigationController{
    func presentViewControllerLeftToRight(controller: UIViewController, completion: (() -> Void)? = nil) {
        let transition = CATransition()
        transition.duration = 0.5
        transition.type = CATransitionType.push
        transition.subtype = CATransitionSubtype.fromRight
        transition.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
        view.window?.layer.add(transition, forKey: kCATransition)
        present(controller, animated: false, completion: completion)
    }

    func presentDismissRightToLeft(completion: (() -> Void)? = nil) {
        let transition = CATransition()
        transition.duration = 0.5
        transition.type = CATransitionType.push
        transition.subtype = CATransitionSubtype.fromLeft
        transition.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeInEaseOut)
        view.window?.layer.add(transition, forKey: kCATransition)
        dismiss(animated: false, completion: completion)
    }
}

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