swift – No notification seems on iOS app utilizing MPRemoteCommandCenter

In my iOS app, I play music and I need to add a notification permitting the person to regulate the audio participant.

So here’s what I attempted with MPRemoteCommandCenter:

    override func software(
        _ software: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
    {
        UNUserNotificationCenter.present().requestAuthorization(choices: [.alert, .badge]) { [self] (granted, error) in
            if (granted)
            {
                self.initNotification(software)
            }
            else
            {
                print("Notifications permission denied as a result of: (error?.localizedDescription).")
            }
        }

        // ...

        return tremendous.software(software, didFinishLaunchingWithOptions: launchOptions)
    }

    non-public func initNotification(_ software: UIApplication)
    {
        software.beginReceivingRemoteControlEvents()
        MPRemoteCommandCenter.shared().playCommand.isEnabled = true
        MPRemoteCommandCenter.shared().playCommand.addTarget { occasion in
            return .success
        }
        
        var nowPlayingInfo = [String: Any]()
        nowPlayingInfo[MPMediaItemPropertyTitle] = "Film Title"
        nowPlayingInfo[MPMediaItemPropertyArtist] = "Artist Identify"
        MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
    }

It compiles and run, however for some cause, no notification seems on the display.

What did I neglect?

Thanks.