class MainFragment : Fragment() {

    private lateinit var viewModel: MainViewModel

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                              savedInstanceState: Bundle?): View {
        return inflater.inflate(R.layout.main_fragment, container, false)
    }

    override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)
        viewModel = ViewModelProviders.of(this).get(MainViewModel::class.java)
        // TODO: Use the ViewModel
    }

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

            NavHostFragment.findNavController(this).navigate(R.id.anotherFragment)


        }
    }
}