ios - 如何在 iOS 中播放循环视频？

Question

如何将视频剪辑放入 Storyboard？我只看到:

另外，我应该把 .mp4 文件放在哪里？

最后，当 View Controller 启动时，循环视频剪辑的正确代码是什么。

 //insert looping video clip here

我熟悉 Android Studio/java，可以毫无问题地做到这一点。但是，我对 swift 和 Xcode 还很陌生，所以遇到了麻烦。

Answer 1

制作循环视频:-

• 将 UIView 添加到您的 ViewController，相应地设置约束。

• 在您的符合类中将 UIView 声明为 @IBOutlet

      @IBOutlet weak var videoView : VideoPlay!
      //Where VideoPlay is a CustomClass for the Video player
  

• 为视频播放器 UIVew 创建自定义类:VideoPlay

  import UIKit
  import AVFoundation
  
  
  
  class VideoPlay: UIView {
  
       private var player : AVPlayer!
  
        private var playerLayer : AVPlayerLayer!
  
      init() {
  
               super.init(frame: CGRectZero)
                self.initializePlayerLayer()
  
            }
  
            override init(frame: CGRect) {
                super.init(frame: frame)
                self.initializePlayerLayer()
                self.autoresizesSubviews = false
            }
  
            required init?(coder aDecoder: NSCoder) {
                super.init(coder: aDecoder)
                self.initializePlayerLayer()
  
            }
  
  
            private func initializePlayerLayer() {
  
                playerLayer = AVPlayerLayer()
                playerLayer.backgroundColor = UIColor.whiteColor().CGColor
                playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
  
                self.layer.addSublayer(playerLayer)
                playerLayer.frame = self.bounds
            }
  
            func playVideoWithURL(url: NSURL) {
  
                player = AVPlayer(URL: url)
                player.muted = false
  
                playerLayer.player = player
  
                player.play()
  
                loopVideo(player)
            }
  
            func toggleMute() {
                player.muted = !player.muted
            }
  
            func isMuted() -> Bool
            {
                          return player.muted
            }
  
            func loopVideo(videoPlayer: AVPlayer) {
  
                NSNotificationCenter.defaultCenter().addObserverForName(AVPlayerItemDidPlayToEndTimeNotification, object: nil, queue: nil) { notification in
  
                    videoPlayer.seekToTime(kCMTimeZero)
                    videoPlayer.play()
                }
            }
  
        }
  

• 修改您的 StoryBoard 符合 ViewController :-

     class ViewController: UIViewController {        
  
         @IBOutlet weak var videoView : VideoPlay!  
  
         override func viewDidLoad() {
                 super.viewDidLoad()
                         let bundle: NSBundle = NSBundle.mainBundle()
                         let moviePath: String = bundle.pathForResource("yourVideoFile_Name", ofType: "yourVideoFile_Type")!
                         let movieUrl : NSURL = NSURL.fileURLWithPath(moviePath)
  
                         videoView.playVideoWithURL(movieUrl)
  
  
             }....
       }
  

• 由于 videoView 符合类 VideoPlay ，您可以访问VideoPlay 的全局函数。

至于保存视频文件的位置，请将其保存在主包中，即:- 在您的情况下，Fighting Trainer Pro 文件夹

例如:-

toggleMute()

isMuted()