如何在视图取消SwiftUI时将选择保留在数组中

@State private var selectedItems: [String] = []

List {
    ForEach(items, id: \.self) { item in
        Toggle(item, isOn: Binding(
            get: { self.selectedItems.contains(item) },
            set: { isSelected in
                if isSelected {
                    self.selectedItems.append(item)
                } else {
                    self.selectedItems.removeAll(where: { $0 == item })
                }
            }
        ))
    }
}

Text("Selected items: \(selectedItems.joined(separator: ", "))")