如何快速制作循环播放的视频 [英] How do i make a looping video in swift

问题描述

我该如何制作本地 .mp4 文件，而没有声音循环播放，因此它只占用屏幕的一部分，并且没有用户控件.只是一个循环播放的视频，有点像gif.我正在使用 xcode ， swift2 .

How would i go about making a local .mp4 file with no sound play on a loop, so it would only take up part of the screen and have no user controls. Just a looping video, sort of like a gif. I am using xcode, swift2.

class ViewController: UIViewController {

    var playerViewController = AVPlayerViewController()
    var playerView = AVPlayer()

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

    }

    override func viewDidAppear(animated: Bool) {
        var fileURL = NSURL(fileURLWithPath: "/Users/Mantas/Desktop/123/123/video-1453562323.mp4.mp4")
        playerView = AVPlayer(URL: fileURL)

        playerViewController.player = playerView

        self.presentViewController(playerViewController, animated: true){

            self.playerViewController.player?.play()

        }
    }
}

我已经做到了，它可以播放视频，但是在全屏模式下，我不知道如何使其仅占据屏幕的一部分以及如何使其循环播放

I have made this, it plays the video, but in full screen, i dont know how to make it only take up part of the screen and how to make it loop

推荐答案

在视频即将结束时添加观察者可以重播视频

Adding observer when video going to finish you can make replay the video

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

    var fileURL = NSURL(fileURLWithPath: "/Users/Mantas/Desktop/123/123/video-1453562323.mp4.mp4")
    playerView = AVPlayer(URL: fileURL)

    NSNotificationCenter.defaultCenter().addObserver(self,
    selector: "playerItemDidReachEnd:",
    name: AVPlayerItemDidPlayToEndTimeNotification,
    object: self.playerView.currentItem) // Add observer

    playerViewController.player = playerView

    //amend the frame of the view
    self.playerViewController.player.frame = CGRectMake(0, 0, 200, 200)
    //reset the layer's frame, and re-add it to the view
    var playerLayer: AVPlayerLayer =   AVPlayerLayer.playerLayerWithPlayer(self.playerView)
    playerLayer.frame = videoHolderView.bounds
    videoHolderView.layer.addSublayer(playerLayer)

    /* Full Screen
    self.presentViewController(playerViewController, animated: true){

        self.playerViewController.player?.play()

    }  */
}

func playerItemDidReachEnd(notification: NSNotification) {
   self.playerView.seekToTime(kCMTimeZero)
   self.playerView.play()
}

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