override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
        super.viewWillTransition(to: size, with: coordinator)
        coordinator.animate(alongsideTransition: { _ in
            
        }) { _ in
            //Put your code here
        }
    }
 

要在屏幕旋轉之後進行的操作放在viewWillTransition的回調函數裏。

viewDidLayoutSubviews可能多次被調用，或在其他地方被調用。

屏幕旋轉