How do I observe AVPlayerLooper Loop Count?

Question

I am looking for an example on how to observe AVPlayer Loop count in Swift and SwiftUI. I need to be able to communicate the loop count to firestore.

Where do I do the observing in the makeUI function, updateUI function, or in the coordinator? I am looking for help on how to structure my UIRepresentable in order to observe the loop count so I can then update my database with an accurate number.

Answer 1

This is the implementation of the custom AVLooper that worked, I will bind a stateobject or use a delegate to communicate loop count back to the view model to upload to firestore.

class PlayerUIView: UIView {
    
    fileprivate var queuePlayer: AVQueuePlayer?
    fileprivate var playerLayer = AVPlayerLayer()
    fileprivate var playbackLooper: AVPlayerLooper?
    var playerItem: AVPlayerItem?
    
    var observation: NSKeyValueObservation?

    override init(frame: CGRect) {
    super.init(frame: frame)
        
    }

    required init?(coder: NSCoder) {
     fatalError("init(coder:) has not been implemented")
    }

    override func layoutSubviews() {
    super.layoutSubviews()
        playerLayer.frame = bounds
        print("Will oberve loopcount")
        observation = playbackLooper?.observe(\AVPlayerLooper.loopCount, options: .new) { looper, change in
            print("loop count: ", change.newValue)
        }
        
    }
    
    
    
    
}