DisposableEffect.exoPlayer.kt

DisposableEffect(exoPlayer) {
        val lifecycleObserver = LifecycleEventObserver { _, event ->
            if (playingItemIndex == null) return@LifecycleEventObserver
            when (event) {
                Lifecycle.Event.ON_START -> exoPlayer.play()
                Lifecycle.Event.ON_STOP -> exoPlayer.pause()
            }
        }

        lifecycleOwner.lifecycle.addObserver(lifecycleObserver)
        
        onDispose {
            lifecycleOwner.lifecycle.removeObserver(lifecycleObserver)
            exoPlayer.release()
        }
    }