How to set NowPlaying properties with a AVQueuePlayer in Swift?

I have an AVQueuePlayer that gets songs from a Firebase Storage via their URL and plays them in sequence.

static func playQueue() {
    for song in songs {
        guard let url = song.url else { return }
        lofiSongs.append(AVPlayerItem(url: url))
    }
    if queuePlayer == nil {
        queuePlayer = AVQueuePlayer(items: lofiSongs)
    } else {
        queuePlayer?.removeAllItems()
        lofiSongs.forEach { queuePlayer?.insert($0, after: nil) }
    }
    queuePlayer?.seek(to: .zero) // In case we added items back in
    queuePlayer?.play()
}

And this works great. I can also make the lock screen controls appear and use the play pause button like this:

private static func setRemoteControlActions() {
    let commandCenter = MPRemoteCommandCenter.shared()

    // Add handler for Play Command
    commandCenter.playCommand.addTarget { [self] event in
        queuePlayer?.play()
        return .success
    }

    // Add handler for Pause Command
    commandCenter.pauseCommand.addTarget { [self] event in
        if queuePlayer?.rate == 1.0 {
            queuePlayer?.pause()
            return .success
        }
        return .commandFailed
    }
}

The problem comes with setting the metadata of the player (name, image, etc). I know it can be done once by setting MPMediaItemPropertyTitle and MPMediaItemArtwork, but how would I change it when the next track loads?

I'm not sure if my approach works for AVQueueplayer, but for playing live streams with AVPlayer you can "listen" to metadata receiving.

extension ViewController: AVPlayerItemMetadataOutputPushDelegate {

    func metadataOutput(_ output: AVPlayerItemMetadataOutput, didOutputTimedMetadataGroups groups: [AVTimedMetadataGroup], from track: AVPlayerItemTrack?) {

        //look for metadata in groups

    }

}

I added the AVPlayerItemMetadataOutputPushDelegate via an extension to my ViewController.

I also found this post.

I hope this gives you a lead to a solution. As said I'm not sure how this works with AVQueuePlayer.