ios - 我如何快速制作循环视频

Question

我将如何制作一个没有循环播放声音的本地 .mp4 文件，这样它只会占据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。

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()

        }
    }
}

我做了这个，它播放视频，但是全屏，我不知道如何让它只占据屏幕的一部分以及如何让它循环播放

Answer 1

Swift 3.0 中的替代版本:

添加这些属性:

fileprivate var player: AVPlayer? {
    didSet { player?.play() }
}

fileprivate var playerObserver: Any?

将此添加到您的 deinit 中:

deinit {
    guard let observer = playerObserver else { return }
    NotificationCenter.default.removeObserver(observer)
}

添加这个函数:

func videoPlayerLayer() -> AVPlayerLayer {
    let fileURL = URL(fileURLWithPath: mediaPath)
    let player = AVPlayer(url: fileURL)
    let resetPlayer = {
        player.seek(to: kCMTimeZero)
        player.play()
    }
    playerObserver = NotificationCenter.default.addObserver(forName: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: player.currentItem, queue: nil) { notification in
        resetPlayer()
    }
    self.player = player
    return AVPlayerLayer(player: player)
}

然后在任何你喜欢的地方添加到你的层(viewDidLoad、viewDidAppear、viewDidFinishLayingOutSubviews):

let playerLayer = videoPlayerLayer()
playerLayer.frame = view.bounds
view.layer.insertSublayer(playerLayer, at: 0)