如何在swiftui中通过引用ID来覆盖可识别对象？

struct Item: Identifiable {
    let id: UUID
    var name: String
}

@State private var selectedItem: Item = Item(id: UUID(), name: "Default Item")

ForEach(items) { item in
    Button(action: {
        selectedItem = item
    }) {
        Text(item.name)
    }
}

if let selectedItem = selectedItem {
    Text("Selected Item: \(selectedItem.name)")
} else {
    Text("No item selected")
}