Ios ScrollViewReader Scrollto Not Working

我正在创建一个水平菜单，并使用水平ScrollView和HStack来查看其项目.一切似乎都很好用，但我对ScrollViewReader有点问题.正如您应该从代码中看到的那样，当currentIndex更改时，我将其值传递给proxy.scrollTo()方法，但我没有得到任何结果，ScrollView没有遵循currentIndex的修改，而currentIndex仍然保持在其原始位置.你能告诉我我哪里错了吗？谢谢你们所有人

struct ScrollableTabMenu<T:CaseIterable & Hashable & Identifiable>: View  {
    var items: [T]
    var title: KeyPath<T, String>
    @Binding var currentIndex: Int
    @Namespace private var animation
    
    var body: some View {
                  
        ScrollView(.horizontal) {
            ScrollViewReader { proxy in
                HStack {
                    ForEach(items) { screen in
                        let index = items.firstIndex(of: screen)!
                        Button {
                            currentIndex = index
                        } label: {
                            Text(screen[keyPath: title])
                                .padding()
                                .overlay(alignment: .bottom){
                                    if currentIndex == index  {
                                        RoundedRectangle(cornerRadius: 6)
                                            .frame(height: 1)
                                            .matchedGeometryEffect(id: "AninamtionTAB", in: animation)
                                    }
                                }
                        }
                        .buttonStyle(.plain)
                    }
                }
                .onChange(of: currentIndex, { _, newValue in
                    withAnimation {
                        proxy.scrollTo(newValue, anchor: .leading)
                        print(newValue)
                    }
                })
            }
        }
        .scrollTargetBehavior(.paging)
        .scrollIndicators(.hidden)
        .contentMargins(.horizontal, 16)
    }
}