StartStopService.kt

    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
    fun onAppBackgrounded() {
        val startIntent = Intent(this, ForegroundService::class.java)
        startIntent.putExtra(COMMAND_ID, COMMAND_START)
        startIntent.putExtra(STARTED_TIMER_TIME_MS, startTime)
        startService(startIntent)
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_START)
    fun onAppForegrounded() {
        val stopIntent = Intent(this, ForegroundService::class.java)
        stopIntent.putExtra(COMMAND_ID, COMMAND_STOP)
        startService(stopIntent)
    }