只要刷一個UIPageViewController，什麼函數被調用？

Question

無論何時刷一個UIPageView，我都需要執行另一個函數。

Answer 1

順應UIPageViewControllerDelegate和實現以下方法：

func pageViewController(UIPageViewController, willTransitionTo: [UIViewController]) { 
    // called when swiping begins 
} 

func pageViewController(UIPageViewController, didFinishAnimating: Bool, previousViewControllers: [UIViewController], transitionCompleted: Bool) { 
    // called when swiping ends 
} 

Answer 2

退房的UIPageViewControllerDelegate。您可能正在尋找pageViewController(_:didFinishAnimating:previousViewControllers:transitionCompleted:)