FoodCategoriesScreen.kt

@Composable
fun FoodCategoriesScreen(
    state: FoodCategoriesContract.State,
    effectFlow: Flow<FoodCategoriesContract.Effect>?,
    onEventSent: (event: FoodCategoriesContract.Event) -> Unit,
    onNavigationRequested: (navigationEffect: FoodCategoriesContract.Effect.Navigation) -> Unit
) {
    // Listen for side effects from the VM
    LaunchedEffect(LAUNCH_LISTEN_FOR_EFFECTS) {
        effectFlow?.onEach { effect ->
            when (effect) {
                is FoodCategoriesContract.Effect.ToastDataWasLoaded -> { ... }
                is FoodCategoriesContract.Effect.Navigation.ToCategoryDetails -> 
                    onNavigationRequested(effect)
            }
        }?.collect()
    }
     Box {
        FoodCategoriesList(foodItems = state.categories, onItemClicked = { itemId ->
            onEventSent(FoodCategoriesContract.Event.CategorySelection(itemId))
        }) 
        if (state.isLoading)
            LoadingBar()
    }
}