OffsetAwareScrollView

// Modified from  https://swiftuirecipes.com/blog/pull-to-refresh-with-swiftui-scrollview
struct OffsetAwareScrollView<Content>: View where Content: View {
    typealias OffsetReceiver = (CGFloat) -> Void

    let axes: Axis.Set
    let showsIndicators: Bool
    let offsetReceiver: OffsetReceiver
    let content: Content

    init(_ axes: Axis.Set = .vertical,
         showsIndicators: Bool = true,
         offsetReceiver: @escaping OffsetReceiver,
         @ViewBuilder content: () -> Content)
    {
        self.axes = axes
        self.showsIndicators = showsIndicators
        self.offsetReceiver = offsetReceiver
        self.content = content()
    }

    var body: some View {
        ScrollView(axes, showsIndicators: showsIndicators) {
            ZStack(alignment: .top) {
                PositionIndicator(type: .moving)
                    .frame(height: 0)

                VStack {
                    content
                }
            }
        }
        // May have to add disabled here and override OffsetAwareScrollView disable func to also set a disabled state
        .background(PositionIndicator(type: .fixed))
        .onPreferenceChange(PositionPreferenceKey.self) { values in
            DispatchQueue.main.async {
                let movingY = values.first { $0.type == .moving }?.y ?? 0
                let fixedY = values.first { $0.type == .fixed }?.y ?? 0
                let offset = movingY - fixedY

                offsetReceiver(offset)
            }
        }
    }
}