導航到新的視圖控制器後，動畫在斯威夫特完成3.0

Question

我有（2）目標：

1. 示例＃1：從原來的視圖控制器導航到一個新的SecondViewController以下動畫在完成後，迅速3.0（即，用戶不必按任何按鈕和App簡單地移動到SecondViewController動畫完成後）

2. 實施例＃2：從原始視圖控制器導航到新的SecondViewController一個時間延遲之後在Swift 3.0中5秒（即用戶不必按任何按鈕和應用程序si mply移動到SecondViewController計時器之後到達5秒 - 沒有動畫涉及第二示例中，只是一個定時器）

這是我的對實施例＃1的代碼：

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. 
    } 


} 

這是我的Xcode中設置：

Answer 1

使用DispatchQueue.main.asyncAfter。

EDITED

集故事板ID來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) 
}