ios - 未调用 UIViewControllerTransitioningDelegate 方法

Question

我正在尝试使用自定义转换实现自定义弹出窗口，但我的委托(delegate)方法根本没有被调用。这是我的过渡代表:

public final class ModalTransitioningDelegate: NSObject, UIViewControllerTransitioningDelegate {

    public func presentationController(forPresented presented: UIViewController, presenting: UIViewController?, source: UIViewController) -> UIPresentationController? {
        let controller = ModalPresentationController(presentedViewController: presented, presenting: presenting)

        return controller
    }

    public func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return ModalAnimationPresenter()
    }

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

这是我的弹出 View Controller :

class StopWorkoutViewController: UIViewController {

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        commonInit()
    }

    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
        commonInit()
    }

    func commonInit() {

        let transitioner = ModalTransitioningDelegate()
        modalPresentationStyle = .custom
        transitioningDelegate = transitioner
    }
}

这是我呈现弹出窗口的方式:

@IBAction func test(_ sender: Any) {
    let popup = UIStoryboard(name: "Popups", bundle: nil).instantiateInitialViewController() as! StopWorkoutViewController
    present(popup, animated: true, completion: nil)
}

这是 IB 中的 View Controller :

显示弹出窗口，但全屏显示。

Answer 1

这是错误的

 func commonInit() {

        let transitioner = ModalTransitioningDelegate()
        modalPresentationStyle = .custom
        transitioningDelegate = transitioner
    }

因为您要为 StopWorkoutViewController 的转换设置动画。您需要将转换委托(delegate)设置为

 @IBAction func test(_ sender: Any) {
    let transitioner = ModalTransitioningDelegate()
    let popup = UIStoryboard(name: "Popups", bundle: nil).instantiateInitialViewController() as! StopWorkoutViewController
    popup.transitioningDelegate = transitioner
    present(popup, animated: true, completion: nil)
}