setup MPRemoteCommandCenter in watchOS Now Playing with WKAudioFilePlayer - ios

Question

I'm working on an app that play audio in Apple Watch; All working fine from inside the app.
I'm trying to setup the MPRemoteCommandCenter in 'Now Playing' to change the next/prev track to skipForward/skipBackward and to add a handler for the pause command.
Nothing change in Now Playing commands the the handler not being trigged.
Below a snippet code:
Play method
var player: WKAudioFilePlayer!
#IBAction func play() {
let avSession = AVAudioSession.sharedInstance()
try! avSession.setCategory(.playback, mode: .default, policy: .longForm, options: [])
let url = Bundle.main.url(forResource: "sample", withExtension: "mp3")!
let item = WKAudioFilePlayerItem(asset: WKAudioFileAsset(url: url))
player = WKAudioFilePlayer(playerItem: item)
do {
try avSession.setActive(true, options: .notifyOthersOnDeactivation)
player.play()
} catch {
print("Error")
}
}
Remote controls setup method:
func setupRemoteControls() {
// Get the shared MPRemoteCommandCenter
let commandCenter = MPRemoteCommandCenter.shared()
commandCenter.skipForwardCommand.preferredIntervals = [NSNumber(value: 15)]
commandCenter.skipForwardCommand.addTarget { (event) -> MPRemoteCommandHandlerStatus in
// skip forward
return .success
}
commandCenter.skipForwardCommand.isEnabled = true
commandCenter.skipBackwardCommand.preferredIntervals = [NSNumber(value: 15)]
commandCenter.skipBackwardCommand.addTarget { (event) -> MPRemoteCommandHandlerStatus in
// skip backword
return .success
}
commandCenter.skipBackwardCommand.isEnabled = true
// Add handler for play Command
commandCenter.playCommand.addTarget { (event) -> MPRemoteCommandHandlerStatus in
self.player.play()
return .success
}
// Add handler for Pause Command
commandCenter.pauseCommand.addTarget { (event) -> MPRemoteCommandHandlerStatus in
self.player.pause()
return .success
}
}
I'm calling self.setupRemoteControls() in awake method. Also I tried to move the setup to the ExtensionDelegate -> applicationDidFinishLaunching
Apple references I used:
https://developer.apple.com/videos/play/wwdc2018/504/
https://developer.apple.com/library/archive/documentation/AudioVideo/Conceptual/MediaPlaybackGuide/Contents/Resources/en.lproj/RefiningTheUserExperience/RefiningTheUserExperience.html
:: UPDATE ::
I found when using the AVAudioPlayer instead of WKAudioFilePlayer the setup for MPRemoteCommandCenter working fine.
The problem that I don't use local audio files!.. I stream 'm3u8' files using wowza which worked only with WKAudioFilePlayer.
And if I tried to stream using AVAudioPlayer I get this error
The operation couldn’t be completed. (OSStatus error 2003334207.)
So my issue now to get MPRemoteCommandCenter being configured while still using WKAudioFilePlayer, or find a way to stream using AVAudioPlayer ??