Swift 3如何锁定方向

Question

我试图锁定我viewController只是纵向方向,而不必依赖于部署信息,但我的以下代码不起作用

override var shouldAutorotate: Bool {
    return false
}

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.portrait
}

 override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation {
    return UIInterfaceOrientation.portrait
}

override func viewDidLoad() {
    super.viewDidLoad()

}

Answer 1

你可以在AppDelegate中试试这个.这将锁定所有viewControllers的方向

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask(rawValue: UIInterfaceOrientationMask.portrait.rawValue)
}