导航到新的视图控制器后，动画在斯威夫特完成3.0

Question

我有（2）目标：

1. 示例＃1：从原来的视图控制器导航到一个新的SecondViewController以下动画在完成后，迅速3.0（即，用户不必按任何按钮和App简单地移动到SecondViewController动画完成后）

2. 实施例＃2：从原始视图控制器导航到新的SecondViewController一个时间延迟之后在Swift 3.0中5秒（即用户不必按任何按钮和应用程序si mply移动到SecondViewController计时器之后到达5秒 - 没有动画涉及第二示例中，只是一个定时器）

这是我的对实施例＃1的代码：

import UIKit 

class ViewController: UIViewController { 

@IBOutlet weak var imageView: UIImageView! 

override func viewDidLoad() { 
    super.viewDidLoad() 

    var imagesName = ["Image_1","Image_2","Image_3","Image_4","Image_5","Image_6","Image_7","Image_8","Image_9","Image_10","Image_11","Image_12","Image_13","Image_14","Image_15"] 

    var images = [UIImage]() 

    for i in 0..<imagesName.count{ 

     images.append(UIImage(named: imagesName[i])!) 
    } 

    imageView.animationImages = images 
    imageView.animationDuration = 1.0 
    imageView.startAnimating() 

// Perhaps here is where we can fire the code to programatically move to a new View Controller after the animation is completed 

    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 


} 

这是我的Xcode中设置：

Answer 1

使用DispatchQueue.main.asyncAfter。

EDITED

集故事板ID来SecondViewController。

示例＃1：

... 
imageView.animationRepeatCount = 1 // <-- here 
imageView.startAnimating() 

DispatchQueue.main.asyncAfter(deadline: .now() + imageView.animationDuration) { 
    let secondViewController = self.storyboard?.instantiateViewController(withIdentifier: "SecondViewController") 
    self.show(secondViewController, sender: nil) 
} 

例子＃2：

... 
imageView.animationRepeatCount = 1 // <-- here 
imageView.startAnimating() 
DispatchQueue.main.asyncAfter(deadline: .now() + 5.0) { 
    let secondViewController = self.storyboard?.instantiateViewController(withIdentifier: "SecondViewController") 
    self.show(secondViewController, sender: nil) 
}