如何在纵向模式下以全屏尺寸播放视频？

Question

我想在启动画面中以纵向模式 - 全屏播放一些视频。那可能吗？请指导我找到合适的解决方案。

我正在寻找 swift 解决方案

Answer 1

app delegate 的 didFinishLaunch 方法内部

let splashScreenVC = viewController(withIdentifier: "identifier", inStoryboard: "storyboard:) as? SplashViewController
window?.rootViewController = splashScreenVC

在视图控制器SplashViewController中，可以在viewDidLoad方法中播放视频。

 func playVideo() {
    guard let videoPath = Bundle.main.path(forResource: "Redtaxi-splash", ofType:"mov") else {
        return
    }

    let videoURL = URL(fileURLWithPath: videoPath)
    let player = AVPlayer(url: videoURL)
    playerViewController = AVPlayerViewController()
    playerViewController?.player = player
    playerViewController?.showsPlaybackControls = false
    playerViewController?.view.frame = view.frame
    playerViewController?.view.backgroundColor = .white
    playerViewController?.view.contentMode = .scaleAspectFill


    NotificationCenter.default.addObserver(self, selector: #selector(playerDidFinishPlaying(note:)),
                                           name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: player.currentItem)

    view.addSubview((playerViewController?.view)!)
    playerViewController?.player?.play()
}

Answer 2

SWIFT 3.0

您不能在默认初始屏幕中执行此操作，但您可以采取一些解决方法来实现此目的。

首先，您应该拍摄视频的第一帧图像。

您可以使用 photoshop 或任何其他图形工具来完成。

现在您可以在 UIImageView 中将其设置为默认启动画面。

现在制作一个 UIViewController 并将其作为初始视图控制器启动。

下面是播放视频的代码

    private func playFullScreenVideo() {
    // drag your video file in  project
    // check if video file is available,if not return
    guard let path = Bundle.main.path(forResource: "video", ofType:"mp4") else {
        debugPrint("video.mp4 missing")
        return
    }
    // create instance of videoPlayer with video path
    let videoPlayer = AVPlayer(url: URL(fileURLWithPath: path))
    // create instance of playerlayer with videoPlayer
    let playerLayer = AVPlayerLayer(player: videoPlayer)
    // set its videoGravity to AVLayerVideoGravityResizeAspectFill to make it full size
    playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
    // add it to your view
    playerLayer.frame = self.view.frame
    playerView.layer.addSublayer(playerLayer)
    // start playing video
    videoPlayer?.play()
  }

如果遇到任何问题，请告诉我

Answer 3

创建 UIView 的子类，带有 AVPlayer 和函数 createBackground:

import AVFoundation

class BackgroundVideo: UIView {
  var player: AVPlayer?

  func createBackground(name: String, type: String) { }
}

那么你的 createBackground 可能是这样的：

func createBackground(name: String, type: String) {
  guard let path = Bundle.main.path(forResource: name, ofType: type) else { return }

  player = AVPlayer(url: URL(fileURLWithPath: path))
  player?.actionAtItemEnd = AVPlayerActionAtItemEnd.none;
  let playerLayer = AVPlayerLayer(player: player)
  playerLayer.frame = self.frame
  playerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
  self.layer.insertSublayer(playerLayer, at: 0)
  player?.seek(to: kCMTimeZero)
  player?.play()
}

然后你可以添加更多的东西，比如观察通知：

AVPlayerItemDidPlayToEndTime 用于实现视频循环。
UIApplicationWillEnterForeground 用于控制视频循环，从后台恢复后。

最后，您可以将此 BackgroundView 附加到任何您需要的地方：假启动画面、主屏幕等等...

如何在纵向模式下以全屏尺寸播放视频？

How to play video in fullscreen size in portrait mode?

avfoundation

ios

swift