Hi all, i have a class that wraps AVPlayer and right now i am a bit stuck. I need to create a listen...

# kotlin-native

[Mats-Hjalmar]

Hi all, i have a class that wraps AVPlayer and right now i am a bit stuck. I need to create a listener to when a track is completed. I figured i would use something like this:

NSNotificationCenter.defaultCenter.addObserver(
    observer = avPlayer,
    selector = NSSelectorFromString(TrackCompletedListener::playerDidFinishPlaying.name + ":"),
        name = AVPlayerItemDidPlayToEndTimeNotification,
    `object` = null,
)

Problem is i get this exception when the track is completed:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[AVPlayer playerDidFinishPlaying:]: unrecognized selector sent to instance 0x600000014660'

And i have no clue on how to fix it.


EDIT on how i fixed it in thread ->

[Mats-Hjalmar]

NSNotificationCenter.defaultCenter.addObserverForName(
            name = AVPlayerItemDidPlayToEndTimeNotification,
            `object` = avPlayer.currentItem,
            queue = null,
        ) {
            println("Track completed")
        }

Use addObserverForName instead.

[Andrew Watson]

Hey @Mats-Hjalmar I'm actually trying some things with media playback myself right now; are you using AVPlayer for video or audio playback?

[Mats-Hjalmar]

@Andrew Watson Yea, when i implemented playlists i noticed there was an AVPlayerQueue but problem with that is that exoplayer has more functionality so i decided to let my wrapper deal with the playlist logic and stick to AVPlayer