I use the EventBus library for passing data (position and duration of a track) from the service with the Media Player’s instance to the fragment in which this service starts.

AudioService.kt:

override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {

                <...>
                EventBus.getDefault().post(
                    PositionAndDurationData(
                        mediaPlayer.duration,
                        mediaPlayer.currentPosition
                    )
                )
                <...>
            }

AudioFragment.kt:

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {

        <...>

        EventBus.getDefault().register(this@AudioFragment)

        <...>
        }

@Subscribe(threadMode = ThreadMode.MAIN)
    fun onEvent(result: PositionAndDurationData) {
        audioDuration = result.duration
        audioPosition = result.position
    }

PositionAndDurationData.kt:

data class PositionAndDurationData(
    var duration: Int,
    var position: Int,
)

Is there any way to refresh the data passing to the UI for every second?