Programmatically show the pull to refresh activity indicator of a refreshable List

Question

I wonder if there's a simple way to make visible the activity indicator used by the refresh control of a SwiftUI List? This would provide a consistent appearance of a refreshing UI, regardless of how the refresh was initiated.

After enabling pull to refresh on a List by using the refreshable modifier, the Lists environment has its refresh item set, which is a RefreshAction used by the refresh control. My guess was that using this RefreshAction would maybe also trigger the visibility of the refresh control, which I tried:

struct MyView : View {
    @State var content: Content
    
    var body: some View {
        _MyView(content: $content)
            .refreshable { // assigning `refresh` to the environment
                await refresh()
            }
    }
    
    private func refresh() async {
        // ...
        content = newContent
        // ...
    }
}

struct _MyView : View {
    @Environment(\.refresh) private var refresh
    // [ content binding, etc... ]

    var body: some View {
        List {
            // ...
        }
        .onAppear {
            Task { await refresh?() } // doesn't show the activity indicator of the list
        }
    }
}

This didn't work.

Since I can't find a isRefreshing/refreshState or similar property of EnvironmentValues I'm wondering if maybe there's another (simple) way to trigger its appearance?

Brockway

There is no build in possibility to achieve this. Here are some answers how you could implement your own solution. – Hobby