How to manage next and previous button in custom video player

Question

I am playing video using avkit. so I have multiple video files and i want to play next and previous song on the button click. i am doing this to play video -:

  func playVideo(){
    let url = URL(string: historyArray[videoUrlIndex].value(forKey:kConstant.keyName.urlString) as! String)
    player = AVPlayer(url: url!)
    playerLayer = AVPlayerLayer(player: player)
    playerLayer.videoGravity = .resize
    player.currentItem?.addObserver(self, forKeyPath: "duration", options: [.new,.initial], context: nil)
    addTimeObserver()
    videoView.layer.sublayers?.removeAll()
    playerLayer.removeFromSuperlayer()
    videoView.layer.addSublayer(playerLayer)
    pip = AVPictureInPictureController(playerLayer: playerLayer)
}

and in view will appear i am doing this -:

 playVideo()
 player.play()

This is what i am doing on next and previous button -:

 @IBAction func rewindButtonPressed(_ sender: AnyObject) {
    if videoUrlIndex > 0 {
       videoUrlIndex = videoUrlIndex - 1
        playVideo()
        player.play()
    }

}

@IBAction func fastforwardButtonPressed(_ sender: Any) {
    if videoUrlIndex >= 0 {
       videoUrlIndex = videoUrlIndex + 1
        playVideo()
        player.play()
    }

}

But this is not working fine what is wrong with this code

Answer 1

Declare class variable var player = AVPlayer? and in you playVideo() function add self.player = player. When you want to replace video try this:

    func replaceVideo() {
    let playerItem = AVPlayerItem(url: URL(string: "videoURL")!)
    self.player.replaceCurrentItem(with: playerItem)
    }