Ios 我希望一个Viewcontroller仅以横向模式显示

我目前正在开发一个移动应用程序，它应该只锁定在纵向模式。由于我可以在项目设置中执行此操作，所以这不是问题，但我希望一个Viewcontroller仅以横向模式显示

我尝试在项目设置中禁用纵向模式，并将这段代码添加到我的横向视图控制器（以及调用它的控制器，但具有纵向方向）：

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我现在面临的问题是，这个解决方案不是最优的。用户仍然可以在设备上旋转他的手指。如何修复此问题？

尝试锁定自动旋转

 override var shouldAutorotate : Bool {
    // Lock autorotate
    return false
}

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这在iOS10之前起作用

viewdidload：

UIDevice.current.setValue(UIInterfaceOrientation.landscapeRight.rawValue, forKey: "orientation")

在viewcontroller中还具有以下功能：

override var shouldAutorotate : Bool {
    return true
}

override var supportedInterfaceOrientations : UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.landscapeRight
}

override var preferredInterfaceOrientationForPresentation : UIInterfaceOrientation {
    return UIInterfaceOrientation.landscapeRight
}

---

下面的代码可以正常工作

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
    if let rootViewController = self.topViewControllerWithRootViewController(rootViewController: window?.rootViewController) {
        if (rootViewController.responds(to: Selector(("canRotate")))){
            // Unlock landscape view orientations for this view controller
            return .allButUpsideDown
        }
    }
    // Only allow portrait (standard behaviour)
    return .portrait
}  
private func topViewControllerWithRootViewController(rootViewController: UIViewController!) -> UIViewController? {
    if (rootViewController == nil) { return nil }
    if (rootViewController.isKind(of: UITabBarController.self)) {
        return topViewControllerWithRootViewController(rootViewController: (rootViewController as! UITabBarController).selectedViewController)
    } else if (rootViewController.isKind(of: UINavigationController.self)) {
        return topViewControllerWithRootViewController(rootViewController: (rootViewController as! UINavigationController).visibleViewController)
    } else if (rootViewController.presentedViewController != nil) {
        return topViewControllerWithRootViewController(rootViewController: rootViewController.presentedViewController)
    }
    return rootViewController}} .
 //Add the below method in ViewController .   

@objc func canRotate() -> Void {}

---

我也有同样的问题。我的代码在iOS 9中运行得很好，但随后开始允许用户在iOS 10中轮换，如果他们尝试的话。参考：

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
    if let rootViewController = self.topViewControllerWithRootViewController(rootViewController: window?.rootViewController) {
        if (rootViewController.responds(to: Selector(("canRotate")))){
            // Unlock landscape view orientations for this view controller
            return .allButUpsideDown
        }
    }
    // Only allow portrait (standard behaviour)
    return .portrait
}  
private func topViewControllerWithRootViewController(rootViewController: UIViewController!) -> UIViewController? {
    if (rootViewController == nil) { return nil }
    if (rootViewController.isKind(of: UITabBarController.self)) {
        return topViewControllerWithRootViewController(rootViewController: (rootViewController as! UITabBarController).selectedViewController)
    } else if (rootViewController.isKind(of: UINavigationController.self)) {
        return topViewControllerWithRootViewController(rootViewController: (rootViewController as! UINavigationController).visibleViewController)
    } else if (rootViewController.presentedViewController != nil) {
        return topViewControllerWithRootViewController(rootViewController: rootViewController.presentedViewController)
    }
    return rootViewController}} .
 //Add the below method in ViewController .   

@objc func canRotate() -> Void {}