I'm trying to make UI for a media3 player but I'm ...

# compose

[zt]

I'm trying to make UI for a media3 player but I'm not sure how to make the player variables like duration into states that cause recomposition

[Chrimaeon]

This highly depends on how you handle your state in general. Is is i.e just rememberState in the composeabe or maybe a view model?

[fengdai]

I achieve this in this way: https://github.com/fengdai/compose-media/blob/master/media/src/main/java/com/github/fengdai/compose/media/PlayerState.kt

[ste]

In my short experience, duration and currentPosition are best handled using a Handler in loop: https://github.com/vfsfitvnm/ViMusic/blob/master/app/src/main/kotlin/it/vfsfitvnm/vimusic/utils/PlayerState.kt#L84

[zt]

I think that'll work for me. @ste you're the dev behind ViMusic? do you think you could help me implement a miniplayer similar to how you did it in ViMusic. I've been trying to make one in an app I'm developing

[fengdai]

If you’re going to adopt ste’s solution. You’d better consider adding a dispose function for removing the callback from the Handler when PlayState is no longer used. Or Handler will cause leaking.

[zt]

I'm gonna use the listener solution you showed

[fengdai]

What about using my library directly? 😀

[ste]

Feng is right. I just added a dispose function accordingly

[zt]

Maybe theres an event to listen to for when the media changes, so a handler wouldn't be necessary?

[ste]

No, if you want to obtain the currentPosition, you must poll it. You can either use a Handler or whatever you like - e.g. you could also poll it within the rememeberPlayerState using produceState