カスタムビューコントローラの遷移xcode8

debugcn 投稿 Dev

Vah.Sah

このチュートリアルに従って、カスタムビュー遷移を作成しようとしています。これが私のコードです

class ItemsTableViewController: UITableViewController, UIViewControllerTransitioningDelegate {

let customPresentAnimationController = CustomPresentAnimationController()

// viewDidLoad and TableView methods

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "showAction" {
        let toViewController = segue.destination as UIViewController
        toViewController.transitioningDelegate = self
        toViewController.modalPresentationStyle = .custom
    }
}

func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
    return customPresentAnimationController
}

}

およびCustomPresentAnimationControllerの場合

class CustomPresentAnimationController: NSObject, UIViewControllerAnimatedTransitioning {

func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
    return 5
}

func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {

    let fromViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from)!
    let toViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)!
    let finalFrameForVC = transitionContext.finalFrame(for: toViewController)
    let containerView = transitionContext.containerView
    let bounds = UIScreen.main.bounds
    toViewController.view.frame = finalFrameForVC.offsetBy(dx: 0, dy: bounds.size.height)
    containerView.addSubview(toViewController.view)

    UIView.animate(withDuration: transitionDuration(using: transitionContext), delay: 0.0, usingSpringWithDamping: 0.5, initialSpringVelocity: 0.0, options: .curveLinear, animations: {
        fromViewController.view.alpha = 0.5
        toViewController.view.frame = finalFrameForVC
        }, completion: {
            finished in
            transitionContext.completeTransition(true)
            fromViewController.view.alpha = 1.0
    })
}

}

ただし、カスタム遷移は機能しません。問題は、animationControllerForPresentedControllerメソッドが呼び出されないことです。どうすればこれを修正できますか？

Vah.Sah

迅速な3では方法

func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
return customPresentAnimationController
}

に置き換えられました

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

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