CGAffineTransform.identity не сбрасывает преобразование правильно после поворота устройства

Question

Я делаю пользовательский переход, и если после текущей анимации устройство будет повернуто, а затем приемный VC будет отклонен, преобразование originVC неверно (экран не выполняется).Если нет вращения устройства, все работает отлично.Может ли кто-нибудь мне помочь?

Вот мой код для представления и отклонения анимации:

func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
        guard let originViewController = transitionContext.viewController(forKey: .from),
            let destinationViewController = transitionContext.viewController(forKey: .to) else { return }

        destinationViewController.view.transform = CGAffineTransform(translationX: 0, y: destinationViewController.view.frame.height)
        let duration = transitionDuration(using: transitionContext)

        UIView.animate(withDuration: duration, animations: {
            destinationViewController.view.transform = CGAffineTransform(translationX: 0, y: 0)
            originViewController.view.transform = originViewController.view.transform.scaledBy(x: 0.95, y: 0.95)
            originViewController.view.layer.cornerRadius = 8.0
        }, completion: { completed in            
            transitionContext.completeTransition(completed)
        })
    }

func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
        guard let originViewController = transitionContext.viewController(forKey: .from),
            let destinationViewController = transitionContext.viewController(forKey: .to) else { return }

        let duration = transitionDuration(using: transitionContext)

        UIView.animate(withDuration: duration, animations: {
            originViewController.view.transform = CGAffineTransform(translationX: 0, y: destinationViewController.view.frame.height)
            destinationViewController.view.transform = CGAffineTransform.identity
            destinationViewController.view.layer.cornerRadius = 0.0
        }, completion: { completed in
            transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
        })
    }

Экраны: до настоящей анимации после настоящей анимации После поворота устройства После закрытия анимации

РЕДАКТИРОВАНИЕ: когда я добавляю destinationViewController.view.frame = transitionContext.finalFrame(for: destinationViewController), чтобы отключить анимацию всегоКажется, работает нормально, но я не знаю, если это правильно

Answer 1

Добавить подпункт в ViewC1 с ведущими, верхними, нижними, конечными ограничениями.Рабочий полный код

class ViewC1: UIViewController {

    @IBAction func presentNow(_ sender: Any) {
        let viewc = storyboard!.instantiateViewController(withIdentifier: "ViewC2") as! ViewC2
        viewc.transitioningDelegate = viewc
        viewc.modalPresentationStyle = .overCurrentContext
        present(viewc, animated: true, completion: nil)
    }

}

class ViewC2: UIViewController {

    let pres = PresentAnimator()
    let diss = DismissAnimator()

    @IBAction func dissmisNow(_ sender: Any) {
        dismiss(animated: true, completion: nil)
    }
}

extension ViewC2: UIViewControllerTransitioningDelegate {
    func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return pres
    }

    func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return diss
    }
}

class PresentAnimator: NSObject, UIViewControllerAnimatedTransitioning {

    func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
        return 1.0
    }

    func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
        guard let originViewController = transitionContext.viewController(forKey: .from),
            let destinationViewController = transitionContext.viewController(forKey: .to) else { return }

        transitionContext.containerView.addSubview(destinationViewController.view)
        destinationViewController.view.frame = transitionContext.containerView.bounds

        let originView = originViewController.view.subviews.first

        destinationViewController.view.transform = CGAffineTransform(translationX: 0, y: destinationViewController.view.frame.height)
        let duration = transitionDuration(using: transitionContext)

        UIView.animate(withDuration: duration, animations: {
            destinationViewController.view.transform = CGAffineTransform(translationX: 0, y: 0)
            originView?.transform = CGAffineTransform(scaleX: 0.95, y: 0.95)
            originView?.layer.cornerRadius = 8.0
        }, completion: { completed in
            transitionContext.completeTransition(completed)
        })
    }
}

class DismissAnimator: NSObject, UIViewControllerAnimatedTransitioning {

    func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
        return 1.0
    }

    func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
        guard let originViewController = transitionContext.viewController(forKey: .from),
            let destinationViewController = transitionContext.viewController(forKey: .to) else { return }

        let originView = destinationViewController.view.subviews.first
        let duration = transitionDuration(using: transitionContext)

        UIView.animate(withDuration: duration, animations: {
            originViewController.view.transform = CGAffineTransform(translationX: 0, y: destinationViewController.view.frame.height)
            originView?.transform = CGAffineTransform.identity
            originView?.layer.cornerRadius = 0.0
        }, completion: { completed in
            transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
        })
    }
}

Обновление: или вы можете переопределить willRotate и didRotate, если не хотите использовать view.subviews.first

var prevTrans: CGAffineTransform?
override func willRotate(to toInterfaceOrientation: UIInterfaceOrientation, duration: TimeInterval) {
    prevTrans = view.transform
    view.transform = CGAffineTransform.identity
}

override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {
    if let prevTrans = prevTrans {
        view.transform = prevTrans
    }
}