Question

我的应用程序是一个仅限肖像的应用程序，但我有一个视图控制器，它使用AVPlayerViewController显示实时流。

为了允许横向播放该播放器的全屏视图，我在 AppDelegate.swift 中编写了此方法：

func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow?) -> Int {
    var orientation =  UIInterfaceOrientationMask.Portrait

    if let presentedController = window?.rootViewController?.presentedViewController? {

        if presentedController.isKindOfClass( NSClassFromString("AVFullScreenViewController").self ) {
            orientation = .AllButUpsideDown
        } else if let navController = presentedController as? UINavigationController {
            if navController.topViewController.isKindOfClass( NSClassFromString("AVFullScreenViewController").self ) {
               orientation = .AllButUpsideDown
            }
        }
    }

    return  Int(orientation.rawValue)
}

这就是我调用初始化我的AVPlayer的方法：

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "showLiveStream" {

        SVProgressHUD.show()
        var queue: dispatch_queue_t = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)

        dispatch_async(queue, {
            let streamURL = NSURL(string: liveStreamURL)
            let playerItem = AVPlayerItem(URL: streamURL)
            let player = AVPlayer(playerItem: playerItem)

            dispatch_async(dispatch_get_main_queue(), {
                SVProgressHUD.dismiss()
                var playerViewController = segue.destinationViewController as AVPlayerViewController
                playerViewController.player = player
            })
        })
    }
}

问题：当我打开播放器的全屏视图时，然后切换到横向，然后点击＆＃34;完成＆＃34;要关闭全屏视图，我的应用程序保持在横向。但我想让它再次旋转成肖像。我怎么能这样做？

Answer 1

而不是实现application(_:supportedInterfaceOrientationsForWindow:)尝试在每个视图控制器上实现supportedInterfaceOrientations()。例如：

override func supportedInterfaceOrientations() -> Int {
    return Int(UIInterfaceOrientationMask.Portrait.rawValue)
}

这将确保视图控制器无法以横向显示，因此在关闭视频播放器时，它将直接返回纵向窗口。

更新目标C：

- (NSUInteger)supportedInterfaceOrientations { 
    return UIInterfaceOrientationMaskPortrait; 
}

Answer 2

在Appdelegate和您的必需视图控制器中添加这些行

-(BOOL)shouldAutorotate
{
    return NO; 
}

-(NSUInteger)supportedInterfaceOrientations
{
    //LandScapeMode:- UIInterfaceOrientationMaskLandscape;
    //PortraitMode:- 
    return UIInterfaceOrientationMaskPortrait 
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    //LandScapeMode:- UIInterfaceOrientationLandscapeRight;
   // ProtraitMode:-
   return UIInterfaceOrientationPortrait
}

Answer 3

我为解决此问题所做的工作，创建了一个包含＆＃39; viewDidLayoutSubviews＆＃39;功能并覆盖它！

final class NewMoviePlayerViewController: AVPlayerViewController {
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()

        if view.bounds == contentOverlayView?.bounds {
            let value = UIInterfaceOrientation.portrait.rawValue
            UIDevice.current.setValue(value, forKey: "orientation")
        }
    }
}

iOS 8 - 在关闭全屏AVPlayerViewController时将方向改回肖像

3 个答案: