如何在 AVPlayer 中强制横向模式？

Question

我正在寻找一种方法来强制 AVplayer（视频）仅在横向模式下显示自身（左侧的主页按钮）。这可能吗？

编辑：尝试添加 playerViewController.supportedInterfaceOrientations = .landscapeLeft

收到错误消息 "Cannot assign to property: 'supportedInterfaceOrientations' is a get-only property"

import AVKit
import AVFoundation

UIViewController {
    var videoPlayer = AVPlayer()
    var playerViewController = AVPlayerViewController()

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

   func play() {
     playerViewController.supportedInterfaceOrientations = .landscapeLeft
     let moviePath = Bundle.main.path(forResource: "full video", ofType: "mov")
     if let path = moviePath {
        let url = NSURL.fileURL(withPath: path)
        let videoPlayer = AVPlayer(url: url)
        let playerViewController = AVPlayerViewController()
        playerViewController.player = videoPlayer
        self.present(playerViewController, animated: true) {
            if let validPlayer = playerViewController.player {
                validPlayer.play()
                playerViewController.showsPlaybackControls = false

               }
            }
        }
    }
}

编辑：尝试添加 AVPlayerViewController 的新子类

import UIKit
import AVFoundation
import AVKit

class LandscapeVideoControllerViewController: AVPlayerViewController {

  override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return .landscapeLeft
  }

}

但收到错误消息 "Method does not override any method from its superclass"

Answer 1

如果您使用 AVPlayerViewController 来呈现视频，您应该能够使用视图控制器的继承支持的界面方向属性，像这样：

let vc = AVPlayerViewController()
vc.supportedInterfaceOrientations = .landscapeRight
// other configs and code to present VC

我还没有机会测试这个，但它应该可以工作，试一试，如果你有任何问题，请 post 你的代码，我会看看并更新答案.

编辑：Taytee 指出这是只读的属性。

您应该能够通过扩展 AVPlayerController 并覆盖支持的方向属性来实现它，在单独的文件中创建此 class：

import AVKit

class LandscapeAVPlayerController: AVPlayerViewController {

    override var supportedInterfaceOrientations: UIInterfaceOrientationMask {
        return .landscapeLeft
    }
}

然后在上面的代码中，您将更改 class 的用法，如

var playerViewController = LandscapeAVPlayerController()

注意 1：在上面的代码中，您创建了两个 AVPlayerController 实例，不需要第二个。

注意 2：您通常会在 Swift 中覆盖的许多与配置相关的方法现在是 Swift 3 中的属性，因此您无需覆盖方法，而是覆盖 'getter'对于属性

Answer 2

只需创建 AVPlayerViewController

的子class

import AVKit

class LandscapePlayer: AVPlayerViewController {
      override var supportedInterfaceOrientations: UIInterfaceOrientationMask{
          return .landscapeLeft
       }
}

如下图

let player = AVPlayer(url:Video_URL)
let playerController = LandscapePlayer()
playerController.player = player
present(playerController, animated: true) {
   player.play()
}

Answer 3

自 Apple warns not to subclass AVPlayerViewController 以来，我发现一个更简单的解决方案是在呈现 AVPlayerViewController 实例之前将应用程序的方向更改为 .landscape，并在它被关闭时将其更改回来。

1。在应用代表中

我们为应用设置了支持的方向。就我而言，该应用程序仅支持 .portrait，但如果需要可以将其设置为 .all

class AppDelegate: UIResponder, UIApplicationDelegate {
    var orientation: UIInterfaceOrientationMask = .portrait
    func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
        return orientation
    }
}

2。在 VC 中呈现 AVPlayerViewController

我们将使用 present 方法的完成处理程序将 playerController 的方向更改为横向。

class VCThatOpensTheVideo: UIViewController {

    let appDelegate = UIApplication.shared.delegate as! AppDelegate


    @IBAction func tappedPlayVideo(_ sender: Any) {
        guard let path = Bundle.main.path(forResource: "video-name", ofType:"mp4") else { return }
    
        let playerController = AVPlayerViewController()
        let player = AVPlayer(url: URL(fileURLWithPath: path))
    
        playerController.player = player
    
        present(playerController, animated: true) {
            player.play() // Optionally autoplay the video when it starts
            self.appDelegate.orientation = .landscape
        UIDevice.current.setValue(UIInterfaceOrientation.landscapeLeft.rawValue, forKey: "orientation")
        }
    }

}

然后我们重写呈现VC到return的viewWillAppear方法回到.portrait

class VCThatOpensTheVideo: UIViewController {

    override func viewWillAppear(_ animated: Bool) {
        appDelegate.orientation = .portrait
        UIDevice.current.setValue(UIInterfaceOrientation.portrait.rawValue, forKey: "orientation")
    }
}

Answer 4

我最近遇到了这个问题并发布了一个类似的解决方案 here modifying Zell B. 的答案。

这是一个 Swift 5 版本，它将检测 AVPlayer 并更新方向设置。它不涉及对 AVPlayerViewController 进行子类化，因此它避免了任何意外行为。

只需将以下代码复制并粘贴到您的 AppDelegate 中（无需编辑）：

func application(_ application: UIApplication, 
                 supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {

    if fetchCurrentVC(self.window?.rootViewController) is AVPlayerViewController {
        return .allButUpsideDown
    }
    return .portrait
}

func fetchCurrentVC(_ viewController: UIViewController?) -> UIViewController? {

    if let tabBarController = viewController as? UITabBarController {
        return fetchCurrentVC(tabBarController.selectedViewController)
    }

    if let navigationController = viewController as? UINavigationController{
        return fetchCurrentVC(navigationController.visibleViewController)
    }

    if let viewController = viewController?.presentedViewController {
        return fetchCurrentVC(viewController)
    }

    return viewController
}

您可以将 .landscapeLeft 修改为您需要的任何方向。

如何在 AVPlayer 中强制横向模式？

How to force landscape mode in AVPlayer?

ios

swift

video

orientation

avplayer

1。在应用代表中

2。在 VC 中呈现 AVPlayerViewController