Question

提前感谢您的帮助！

所以我跟着这个tutorial，我创建了自己的自定义动画师。我的CustomAnimator课已经完成，但我根本就没有得到如何使用它。我为ViewController UINavigationControllerDelegate创建了一个扩展程序，现在我的问题是，如何在ViewController中使用CustomAnimator转换为切换到我的按钮NewViewController？

非常感谢，我喜欢这个社区;）

圣拉斐尔

编辑：以下是您需要了解的代码： LoginViewController的扩展

extension LoginViewController: UINavigationControllerDelegate {

    func navigationController(navigationController: UINavigationController, animationControllerForOperation operation: UINavigationControllerOperation, fromViewController fromVC: UIViewController, toViewController toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        // Creating an instance of the animator
        let animation = TopDownScrollAnimation()

        if fromVC is LoginViewController {
            animation.transitionMode = .Present
        } else {
            animation.transitionMode = .Dismiss
        }

        return animation
    }
}

自定义动画：

class TopDownScrollAnimation: NSObject, UIViewControllerAnimatedTransitioning {

    enum TransitionMode: Int {
        case Present, Dismiss
    }

    var transitionMode: TransitionMode = .Present


    // Transition duration
    func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval {
        switch transitionMode {
        case .Present:
            return 0.4
        case.Dismiss:
            return 0.2
        }
    }


    // Transition animation
    func animateTransition(transitionContext: UIViewControllerContextTransitioning) {
        // Getting containterView + both views for the transition
        let containerView = transitionContext.containerView()
        let fromView = transitionContext.viewForKey(UITransitionContextFromViewKey)!
        let toView = transitionContext.viewForKey(UITransitionContextToViewKey)!

        switch transitionMode {
        case .Present:
            // Adding toView to the containerView
            toView.frame = CGRect(x: containerView!.bounds.size.width, y: 0, width: containerView!.bounds.size.width, height: containerView!.bounds.size.height)
            containerView?.addSubview(toView)

            // Adding fromView to the containerView
            containerView?.addSubview(fromView)

            containerView?.bringSubviewToFront(toView)

            // Getting the duration
            let duration = self.transitionDuration(transitionContext)

            // Animation
            UIView.animateWithDuration(duration, animations: {
                fromView.frame = CGRectOffset(fromView.frame, -containerView!.bounds.size.width, 0)
                toView.frame = containerView!.frame
            }) { (_) in
                transitionContext.completeTransition(true) }


        case .Dismiss:
            // Adding the toView to the containerView
            containerView?.addSubview(toView)
            toView.frame = CGRect(x: -containerView!.bounds.size.width, y: 0, width: containerView!.bounds.size.width, height: containerView!.bounds.size.height)

            // Adding the fromView and bringing it to the front
            containerView?.addSubview(fromView)
            containerView?.bringSubviewToFront(fromView)

            // Getting the duration
            let duration = self.transitionDuration(transitionContext)

            UIView.animateWithDuration(duration, animations: {
                fromView.frame = CGRectOffset(fromView.frame, containerView!.bounds.size.width, 0)
                toView.frame = containerView!.frame
            }) { (_) in
                transitionContext.completeTransition(true) }
        }
    }
}

现在我想从LoginViewController获得一个按钮，该按钮使用动画转换到SignUpViewController，而不使用故事板中的NavigationController。

我还在行viewDidLoad() LoginViewController的{{1}}中添加了该内容。

iOS [Swift] - 如何使用自定义动画制作进行VC转换

0 个答案: