NewWay.kt

data class Event(val username: String)

class UserViewModel : ViewModel() {

  val events = MutableSharedFlow<Event>
}

class UserFragment : Fragment() {

  private val viewModel by viewModels<UserViewModel>()
  private var userView: UserView? = null
  
  override fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
  ): View {
    userView = UserView.inflate(inflater, container, false)
    return userView!!.root
  }
  
  override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    
    viewModel.events
      .onEach {
        // we delegate render events to our UserView
        userView?.handle(it)
      }
      .launchIn(viewLifecycleOwner.lifecycle.coroutineScope)
  }
}