ios - Swift Youtube 框架委托(delegate)方法未触发

Question

我正在使用一个框架在 Swift 中播放 Youtube 视频:https://github.com/gilesvangruisen/Swift-YouTube-Player 。该框架提供了委托(delegate)方法，但我似乎无法让它们启动。其他人已经成功了，所以我确信问题出在我身上。

import UIKit
import YouTubePlayer

class MainPlayerController: UIViewController, YouTubePlayerDelegate {

@IBOutlet var playerView: YouTubePlayerView!

override func viewDidLoad() {
    super.viewDidLoad()
    let myVideoURL = NSURL(string: "https://www.youtube.com/watch?v=OGe-WXhbmBg")
    playerView.delegate = self
    playerView.loadVideoURL(myVideoURL! as URL)
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

@IBAction func play(_ sender: AnyObject) {
    playerView.play()
}


//The 3 functions below will not fire

func playerStateChanged(videoPlayer: YouTubePlayerView, playerState: YouTubePlayerState) {
    print("playerStateChanged")
}

func playerReady(videoPlayer: YouTubePlayerView) {
    print("playerReady")
}

func playerQualityChanged(videoPlayer: YouTubePlayerView, playbackQuality: YouTubePlaybackQuality) {
    print("playerQualityChanged")
}


}

播放器工作正常并且可以播放。我正在尝试让 playerReady() 函数特别工作。任何帮助都会很棒，谢谢。

Answer 1

“尝试在每个方法的第一个参数之前添加下划线。即。playerReady(_ videoPlayer:...)”-维克托·加达特