AVKit -视频剪辑只循环2次

Question

我有四个视频剪辑，我想无休止地播放它们。但是我的AVQueuePlayer()只循环了所有的视频2次，然后停止。

如何让他们无休止地玩

这是我的密码：

import UIKit
import AVKit

class ViewController: UIViewController {

    private let player = AVQueuePlayer()
    let clips = ["001", "002", "003", "004"]
    private var token: NSKeyValueObservation?
    var avPlayerView = AVPlayerViewController()

    override func viewDidLoad() {
        super.viewDidLoad()
        self.addAllVideosToPlayer()
    }
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(true)
        self.addAllVideosToPlayer()
    }

    func addAllVideosToPlayer() {
        avPlayerView.player = player

        for clip in clips {
            let urlPath = Bundle.main.path(forResource: clip, ofType: "m4v")!
            let url = URL(fileURLWithPath: urlPath)
            let playerItem = AVPlayerItem(url: url)
            player.insert(playerItem, after: player.items().last)

            token = player.observe(\.currentItem) { [weak self] player, _ in
                if self!.player.items().count == 1 { self?.addAllVideosToPlayer() }
            }
            avPlayerView.showsPlaybackControls = false
            player.volume = 0.0
        }
        present(avPlayerView, animated: true, completion: { self.player.play() })
    }
}

Answer 1

我解决了我的问题。我删除了viewDidLoad()方法，并将present()函数放入viewDidAppear()中。

下面是它的样子：

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(true)
    self.addAllVideosToPlayer()
    present(avPlayerView, animated: true, completion: { self.player.play() })
}