如何在SwiftUI中从列表中获取屏幕行？

struct ContentView: View {
    let items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
    
    var body: some View {
        List(items, id: \.self) { item in
            Text("Item \(item)")
        }
    }
}

struct ContentView: View {
    let items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
    
    var body: some View {
        GeometryReader { geometry in
            ScrollView {
                // List code here
                List(items, id: \.self) { item in
                    Text("Item \(item)")
                }
            }
        }
    }
}

struct ContentView: View {
    let items = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
    @State private var visibleRows: [Int] = []
    
    var body: some View {
        GeometryReader { geometry in
            ScrollView {
                List(items, id: \.self) { item in
                    Text("Item \(item)")
                        .onAppear {
                            if let index = items.firstIndex(of: item) {
                                visibleRows.append(index)
                            }
                        }
                }
            }
        }
    }
}