tvOS Bootcamp Player 4

PlayerViewController4.swift

class PlayerViewController: AVPlayerViewController {
    var url: URL?
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        if !initialized {
            if asset != nil {
                startAssetPlayback()
            } else {
                startAdvertPlayback()
            }
        }
        initialized = true
    }
    
    private func startAdvertPlayback() {
        if let url = url {
            player = AVPlayer(url: url)
            player?.play()
        }
    }
}