从不同的视图引用YTPlayer将变为nil

Question

我想从屏幕转换目的地控制视频视图的视频播放器。

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我想通过轻敲手机来播放视频

试着

//选择(点击)到单元格

override func tableView(_ table: UITableView,didSelectRowAt indexPath: IndexPath) {

          let video = ViewController()

          video.playerView.playVideo()

    }

但致命错误:在展开可选值时意外发现nil

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追加：

我试着从https://github.com/youtube/youtube-ios-player-helper使用YTPlayer

但是我不知道如何在你的代码中写"YTPlayer“。

YTPlayer没有YTPlayer(exist YTPlayerView)和YTPlayerLayer。

我的视图控制器的代码在这里

import UIKit
import youtube_ios_player_helper
import AVFoundation

class ViewController: UIViewController, YTPlayerViewDelegate{

@IBOutlet var playerView: YTPlayerView!

var appDelegate:AppDelegate = UIApplication.shared.delegate as! AppDelegate



override func viewDidLoad() {
    super.viewDidLoad()

    self.playerView.delegate = self

    self.playerView.sizeToFit()



    let vars = ["playsinline": 1, "controls": 2, "showinfo": 0, "origin":"https://www.google.com"] as [String : Any]

    if self.appDelegate.selectMV == ""
    {
        print("Not Load",self.appDelegate.selectMV)
    }
    else
    {
        print("Load",self.appDelegate.selectMV)
        playerView.load(withVideoId: self.appDelegate.selectMV, playerVars: vars)
    }

    let audioSession = AVAudioSession.sharedInstance()

    do {

        try audioSession.setCategory(AVAudioSessionCategoryPlayback)

    }

    catch {

        print("")

    }


}

func playerViewDidBecomeReady(_ playerView: YTPlayerView) {
    playerView.playVideo()
}

func play() {
    print("Push! play")
    //Error playerView nil 
    playerView.load(withVideoId: self.appDelegate.selectMV)
    playerView.playVideo()
    }

}

Answer 1

戒烟很简单..你需要像你已经做的那样在didselect中编码。但这类代码在这里永远不会起作用。您必须首先在ViewDidLoad()或ViewWillAppear()中像这样编写代码。

self.player = AVPlayer(url: NSURL(fileURLWithPath: filePath) as URL)
self.playerLayer = AVPlayerLayer(player: self.player)
self.playerLayer.frame = self.vview.bounds

然后在didSelect中只编写简单的代码

Player.play()

如果您想要更改playerItem，只需在didSelect中编写如下代码。

player.replaceCurrentItemWithPlayerItem(AVPlayerItem(URL: NSURL(fileURLWithPath: filePath)))

这是给single View的。试着这样做，如果你需要任何帮助，请随时问我。