建立水平頁面檢視控制器的簡單方法（無限頁面）

1. 讓我們建立一個新專案，我選擇單檢視應用程式來更好地演示

2. 將頁面檢視控制器拖到故事板上，之後應該更改兩件事：
   1. 將頁面檢視控制器設定為初始檢視控制器
   2. 更改過渡樣式以滾動

3. 你需要建立一個 UIPageViewController 類，然後將其設定為故事板上的頁面檢視控制器的自定義類

4. 將此程式碼貼上到你的 UIPageViewController 類中，你應該獲得一個色彩繽紛的無限分頁應用:)

   class PageViewController: UIPageViewController, UIPageViewControllerDataSource {
   
       override func viewDidLoad() {
           self.dataSource = self
           let controller = createViewController()
           self.setViewControllers([controller], direction: .forward, animated: false, completion: nil)
       }
   
       func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
           let controller = createViewController()
           return controller
       }
   
       func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
           let controller = createViewController()
           return controller
       }
   
       func createViewController() -> UIViewController {
           var randomColor: UIColor {
               return UIColor(hue: CGFloat(arc4random_uniform(360))/360, saturation: 0.5, brightness: 0.8, alpha: 1)
           }
           let storyboard = UIStoryboard(name: "Main", bundle: nil)
           let controller = storyboard.instantiateViewController(withIdentifier: "View Controller")
           controller.view.backgroundColor = randomColor
           return controller
       }
   }
   

這是最終專案的樣子，每個卷軸都有一個不同顏色的檢視控制器：