小编Moh*_*hah的帖子

这就是我重写视图控制器的方式，但是，如果还有另一种更好的方法可以做到这一点，并且使我的第二个视图控制器与重写不符，请直接指导我，任何建议都可以。

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {


    coordinator.animate(alongsideTransition: { (UIViewControllerTransitionCoordinatorContext) -> Void in

        let orient = UIApplication.shared.statusBarOrientation

        switch orient {
        case .portrait:
            print("Portrait")
            self.applyPortraitConstraint()
            break
        // Do something
        default:
            print("LandScape")
            // Do something else
            self.applyLandScapeConstraint()
            break
        }
    }, completion: { (UIViewControllerTransitionCoordinatorContext) -> Void in
        print("rotation completed")
    })
    super.viewWillTransition(to: size, with: coordinator)
}

 func applyPortraitConstraint(){
    stackView.axis = .vertical
    stackView.distribution = .fill
}

 func applyLandScapeConstraint(){
    stackView.axis = .horizontal
    stackView.distribution = .fillEqually
}