如何将 DRY 应用于以下代码？

Question

我在我的代码中复制了以下结构 3 次。 唯一的动态部分是“Item1Model”、“Item1AddView”和“Item1Cell”，其中“Item1Model”是一个 NSManagedObject，另外两个是 SwiftUI 视图结构。 如何只使用一个结构并传入动态 3 个对象？

struct Item1ListView: View {
    @FetchRequest(fetchRequest: Item1Model.fetchRequest()) var items: FetchedResults<Item1Model>
    @Environment(\.managedObjectContext) var moc
    @Environment(\.editMode) var editMode

    @State private var showingAddView = false
    @State private var showingDeleteConfirmation = false
    @State private var deletionAlert: Alert?
    private var trailingButtons: some View {
        HStack(spacing: 18) {
            Button(action: { self.showingAddView.toggle() }, label: { Image(systemName: "plus").imageScale(.large) })
                .disabled(editMode!.wrappedValue.isEditing)
            EditButton()
        }
    }

    var body: some View {
        List {
            ForEach(items) { item in
                Item1Cell(item: item)
            }
            .onDelete { self.delete(items[$0.first!]) }
        }
        .navigationBarTitle("List", displayMode: .inline)
        .navigationBarItems(trailing: trailingButtons)
        .sheet(isPresented: $showingAddView) { Item1AddView }
        .alert(isPresented: $showingDeleteConfirmation) { deletionAlert! }
    }

    private func delete(item: NSManagedObject) {
            let deleteButton = Alert.Button.destructive(Text("Delete")) { self.moc.delete(item) }
            deletionAlert = Alert(
                title: Text("Confirmation"),
                message: Text("If you delete this item, all related items will be delete!"),
                primaryButton: .cancel(),
                secondaryButton: deleteButton
            )
            showingDeleteConfirmation.toggle()
    }

}