val intent = Intent(this, HelloService::class.java)
startService(intent)


// with bound

private lateinit var mService: LocalService
private var mBound: Boolean = false

/** Defines callbacks for service binding, passed to bindService().  */
private val connection = object : ServiceConnection {

    override fun onServiceConnected(className: ComponentName, service: IBinder) {
        // We've bound to LocalService, cast the IBinder and get LocalService instance.
        val binder = service as LocalService.LocalBinder
        mService = binder.getService()
        mBound = true
    }

    override fun onServiceDisconnected(arg0: ComponentName) {
        mBound = false
    }
}

override fun onStart() {
    super.onStart()
    // Bind to LocalService.
    Intent(this, LocalService::class.java).also { intent ->
        bindService(intent, connection, Context.BIND_AUTO_CREATE)
    }
}

override fun onStop() {
    super.onStop()
    unbindService(connection)
    mBound = false
}