使用swift 3在VLCPlayer中播放电影时完全旋转横向视图

Question

我想在电影播放时旋转我的视图控制器。
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。但是所有代码都不起作用。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
}

我把这段代码放到 vlcplayerviewcontroller.swift 文件中。

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。
我的参考链接是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")

并将这些方法添加到同一个类中

    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
    }

我希望这会有所帮助。

Answer 2

我在链接的答案中有一个解决方案，但我针对横向进行了调整。按照以下步骤操作，它会为您提供所需的功能。

斯威夫特 3

在 AppDelegate 中：

/// set orientations you want to be allowed in this property by default
var orientationLock = UIInterfaceOrientationMask.all

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

在其他一些全局结构或辅助类中，我在这里创建了 AppUtility：

struct AppUtility {

    static func lockOrientation(_ orientation: UIInterfaceOrientationMask) {

        if let delegate = UIApplication.shared.delegate as? AppDelegate {
            delegate.orientationLock = orientation
        }
    }

    /// Added method to adjust lock and rotate to the desired orientation
    static func lockOrientation(_ orientation: UIInterfaceOrientationMask, andRotateTo rotateOrientation:UIInterfaceOrientation) {

        self.lockOrientation(orientation)

        UIDevice.current.setValue(rotateOrientation.rawValue, forKey: "orientation")
    }

}

然后在您想要锁定和旋转方向的所需 ViewController 中，例如您的电影控制器：

 override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)

    // rotate and lock
    AppUtility.lockOrientation(.landscape, andRotateTo: .landscapeRight)

}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)

    // Don't forget to reset when view is being removed
    AppUtility.lockOrientation(.all)
}