Request Feature about isscrolling

[fatbobman]

Your approach is basically correct (by judging MinValueKey.self ).
The reason why there is no API to display the current scrolling direction is that MinValue cannot provide the correct state in any case. For example, you also found that sometimes the direction of the data is reversed. In addition, when scrolling to the top and bottom, there is a bounce, and the direction expression cannot be correctly expressed.

[webserveis]

I testing with this

struct ScrollStatusMonitorCommonModifier: ViewModifier {
    @StateObject private var store = CommonStore()
    @Binding var isScrolling: Bool
    
    func body(content: Content) -> some View {
        var previousY: CGFloat = 0
        
        return content
            .environment(\.isScrolling, store.isScrolling)
            .onChange(of: store.isScrolling) { value in
                isScrolling = value
            }
            .onPreferenceChange(MinValueKey.self) { value in
                let currentY = value.origin.y
                print("currentY \(currentY) previousY \(previousY)")

                if currentY < previousY {
                    print("Scrolling Up")
                } else if currentY > previousY {
                    print("Scrolling Down")
                }
                previousY = currentY
                store.preferencePublisher.send(1)
            }
            .onDisappear {
                store.cancellable = nil
            }
    }
}

but sometimes I see that there is a small direction jump in the scroll X_o