restartableStateIn

restartableStateIn.kt

@HiltViewModel
class MainViewModel @Inject constructor(
  repository: TimelineRepository
): ViewModel() {

  val timelineUi: RestartableStateFlow<ScreenUi?> = repository.fetchTimelineUi()
    .flatMapLatest { response -> flowOf(response.getOrNull()) }
    .restartableStateIn(
      scope = viewModelScope,
      started = SharingStarted.WhileSubscribed(5000),
      initialValue = null
    )
   
  // This can be launched from UI side, such as LaunchedEffect or anywhere.
  fun restartTimeline() {
    timelineUi.restart()
  }
}