Question: CollectionView items are not displayed on iOS (XF 5.0 bug)

[gaelian]

Maintaining a Xamarin Forms (5.0.0.2545) Fabulous 1.1.0 app and I think I've been hit with this XF bug. A workaround is mentioned, add await Task.Delay(50) before setting items in the CollectionView. I'm having trouble translating this in a way that works, in the context of a Fabulous 1.1.0 XF app. A simplified example of the page:

View.ContentPage(
    title = "Content Page"
    content = 
        View.ScrollView(
            View.CollectionView(
                items = // ???
            )
        )
)

What might be the best approach here?

[TimLariviere]

@gaelian You could trigger a Cmd that would wait those 50ms before adding the items.
eg.

type Model = { Items: string list; ShouldAddItems: bool }

type Msg = | AllowItems

let delayItemsCmd () =
    Cmd.ofAsyncMsg(
        async {
            do! Async.Sleep 50
            return AllowItems
        }
    )

let init () =
    { Items = [ "A"; "B"; "C" ]; ShouldAddItems = false }, delayItemsCmd()

let update msg model =
    match  msg with
    | AllowItems -> { model with ShouldAddItems = true }, Cmd.none

let view model dispatch =
    View.ContentPage(
        title = "Content Page",
        content =
            View.ScrollView(
                View.CollectionView(
                    items = if model.ShouldAddItems then model.Items else []
                )
           )
   )

[gaelian]

Appreciate the help, @TimLariviere. I'll give that a go.