类型 'AnimationController' 不符合协议 'UIViewControllerAnimatedTransitioning'

Question

import Foundation 
import UIKit 

enum TransitionType { 
    case Presenting, Dismissing 
} 

class AnimationController: NSObject, UIViewControllerAnimatedTransitioning { 
    var duration: NSTimeInterval 
    var isPresenting: Bool 
    var originFrame: CGRect 

    init(withDuration duration: NSTimeInterval, forTransitionType type: TransitionType, originFrame: CGRect) { 
     self.duration = duration 
     self.isPresenting = type == .Presenting 
     self.originFrame = originFrame 

     super.init() 
    } 

    func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval { 
     return self.duration 
    } 
} 

代码改编自下面的教程：

• How to Create Custom View Controller Transitions and Animations

Answer 1

这是错误的话。该代码尚未完全采用UIViewControllerAnimatedTransitioning协议。您需要实施public func animateTransition(transitionContext: UIViewControllerContextTransitioning)，这发生在您链接到的文章的下一代码块中。