ios - 使用 swift 3 在 VLCPlayer 中播放电影时完全旋转横向 View

Question

我想在电影播放时旋转我的 View Controller 。
我的问题可能是重复的，但是当我发现堆栈溢出时，我尝试了很多方法。但并非所有代码都有效。可能是我把代码放错了。

 override var shouldAutorotate: Bool {
    return false
}

override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
        //return[.portrait,.landscapeRight]
    return .landscapeLeft
}
override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation {
    //return UIInterfaceOrientation.landscapeRight
    return .landscapeLeft
}

我将此代码放入 vlcplayerviewcontroller.swift 文件。

当用户点击播放按钮时，它将转到 vlcplayerviewcontroller.swift，我想自动以横向模式显示电影。我不知道我该怎么做。
我的引用链接是How to lock orientation of one view controller to portrait mode only in Swift .

Answer 1

在项目设置下仅允许纵向设备方向。将这些行添加到您的 AppDelegate 文件中

func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
    if let rootViewController = self.topViewControllerWithRootViewController(rootViewController: window?.rootViewController) {
        if (rootViewController.isKind(of: your_class_name_for_rotate.self)) {
            // 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
}

在 view_controller_for_rotate 的 viewDidLoad 方法中添加这一行

let value = UIInterfaceOrientation.landscapeLeft.rawValue
    UIDevice.current.setValue(value, forKey: "orientation")

并在同一个类中添加这些方法

    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        UIDevice.current.setValue(Int(UIInterfaceOrientation.portrait.rawValue), forKey: "orientation")
    }
private func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
        return UIInterfaceOrientationMask.landscapeLeft
    }
    private func shouldAutorotate() -> Bool {
        return true
    }

希望对您有所帮助。