Fragment & ViewModel

Fragment создает/подключается к ViewModel через Provider’а, используя Factory:

class SleepTrackerFragment : Fragment() {

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                              savedInstanceState: Bundle?): View? {
...
        val sleepTrackerViewModel = ViewModelProviders.of(
                this, viewModelFactory).get(SleepTrackerViewModel::class.java)
...