无法将类型 'Binding<_>' 的值转换为预期的参数类型 'Binding<Card>'

Question

我正在尝试创建到 FetchedResults 项的绑定，错误出现在 $items[i]:

struct NavView: View {   
    @Binding var item : Card

    ...
}

struct ContentView: View {
private var items: FetchedResults<Card>

var body: some View {
    List {
        ForEach(items.indices, id:\.self) { i in
            NavigationLink {
                NavView(item: $items[i])
            }
        }
    }
}
}

Answer 1

更改绑定到 ObservedObject 编译并且似乎工作正常，虽然我觉得我通过创建一个新的 ObservedObject 违反了单一真实来源政策。

struct NavView: View {   
    @ObservedObject var item : Card

    ...
}

struct ContentView: View {
private var items: FetchedResults<Card>

var body: some View {
    List {
        ForEach(items) { item in
            NavigationLink {
                NavView(item: item)
            }
        }
    }
}
}