SwiftUI UIViewRepresentable AVPlayer crashing due to "periodTimeObserver" - swift

Question

I have a SwiftUI application which has a carousel of videos. I'm using an AVPlayer with UIViewRepresentable and I'm creating the carousel with a ForEach loop of my custom UIViewRepresentable view. I want to have a "periodicTimeObserver" on the active AVPlayer, but it crashes and says
"An instance of AVPlayer cannot remove a time observer that was added
by a different instance of AVPlayer SwiftUI"
My question is how can I remove the periodicTimeObserver of an AVPlayer inside of a UIViewRepresentable inside of a UIView, without causing the app to crash?
Here is my code:
ForEach(videosArray.indices, id: \.self) { i in
let videoURL = videosArray[i]
ZStack {
VStack {
VideoView.init(viewModel: viewModel, videoURL: URL(string: videoURL)!, videoIndex: i)
}
}
}
struct VideoView: UIViewRepresentable {
#ObservedObject var viewModel = viewModel.init()
var videoURL:URL
var previewLength:Double?
var videoIndex: Int
func makeUIView(context: Context) -> UIView {
return PlayerView.init(frame: .zero, url: videoURL, previewLength: previewLength ?? 6)
}
func updateUIView(_ uiView: UIView, context: Context) {
if videoIndex == viewModel.currentIndexSelected {
if let playerView = uiView as? PlayerView {
if !viewModel.isPlaying {
playerView.pause()
} else {
playerView.play(customStartTime: viewModel.newStartTime, customEndTime: viewModel.newEndTime)
}
}
} else {
if let playerView = uiView as? PlayerView {
playerView.pause()
}
}
}
}
public class ViewModel: ObservableObject {
#Published public var currentIndexSelected: Int = 0
#Published public var isPlaying: Bool = true
#Published public var newStartTime = 0.0
#Published public var newEndTime = 30.0
}
class PlayerView: UIView {
private let playerLayer = AVPlayerLayer()
private var previewTimer:Timer?
var previewLength:Double
var player: AVPlayer?
var timeObserver: Any? = nil
init(frame: CGRect, url: URL, previewLength:Double) {
self.previewLength = previewLength
super.init(frame: frame)
player = AVPlayer(url: url)
player!.volume = 0
player!.play()
playerLayer.player = player
playerLayer.videoGravity = .resizeAspectFill
playerLayer.backgroundColor = UIColor.black.cgColor
layer.addSublayer(playerLayer)
}
required init?(coder: NSCoder) {
self.previewLength = 15
super.init(coder: coder)
}
override func layoutSubviews() {
super.layoutSubviews()
playerLayer.frame = bounds
}
func pause() {
if let timeObserver = timeObserver {
self.player?.removeTimeObserver(timeObserver)
self.timeObserver = nil
}
player?.pause()
}
#objc func replayFinishedItem(noti: NSNotification) {
print("REPLAY FINISHED NOTIIIII: \(noti)")
if let timeDict = noti.object as? [String: Any], let startTime = timeDict["startTime"] as? Double, let endTime = timeDict["endTime"] as? Double/*, let player = timeDict["player"] as? AVPlayer, let observer = timeDict["timeObserver"]*/ {
self.removeTheTimeObserver()
self.play(customStartTime: startTime, customEndTime: endTime)
}
}
#objc func removeTheTimeObserver() {
print("ATTEMPT TO REMOVE IT!")
if let timeObserver = timeObserver {
self.player?.removeTimeObserver(timeObserver)
self.timeObserver = nil
}
}
func play(at playPosition: Double = 0.0, customStartTime: Double = 0.0, customEndTime: Double = 15.0) {
var startTime = customStartTime
var endTime = customEndTime
if customStartTime > customEndTime {
startTime = customEndTime
endTime = customStartTime
}
if playPosition != 0.0 {
player?.seek(to: CMTime(seconds: playPosition, preferredTimescale: CMTimeScale(1)))
} else {
player?.seek(to: CMTime(seconds: startTime, preferredTimescale: CMTimeScale(1)))
}
player?.play()
var timeDict: [String: Any] = ["startTime": startTime, "endTime": endTime]
NotificationCenter.default.addObserver(self, selector: #selector(self.replayFinishedItem(noti:)), name: .customAVPlayerShouldReplayNotification, object: nil)
self.timeObserver = self.player?.addPeriodicTimeObserver(forInterval: CMTime.init(value: 1, timescale: 100), queue: DispatchQueue.main, using: { [weak self] time in
guard let strongSelf = self else {
return
}
let currentTime = CMTimeGetSeconds(strongSelf.player!.currentTime())
let currentTimeStr = String(currentTime)
if let currentTimeDouble = Double(currentTimeStr) {
let userDefaults = UserDefaults.standard
userDefaults.set(currentTimeDouble, forKey: "currentTimeDouble")
NotificationCenter.default.post(name: .currentTimeDouble, object: currentTimeDouble)
if currentTimeDouble >= endTime {
if let timeObserver = strongSelf.timeObserver {
strongSelf.player?.removeTimeObserver(timeObserver)
strongSelf.timeObserver = nil
}
strongSelf.player?.pause()
NotificationCenter.default.post(name: .customAVPlayerShouldReplayNotification, object: timeDict)
} else if let currentItem = strongSelf.player?.currentItem {
let seconds = currentItem.duration.seconds
if currentTimeDouble >= seconds {
if let timeObserver = strongSelf.timeObserver {
strongSelf.player?.removeTimeObserver(timeObserver)
strongSelf.timeObserver = nil
}
NotificationCenter.default.post(name: .customAVPlayerShouldReplayNotification, object: timeDict)
}
}
}
})
}
}