Question

我正在尝试遍历来自核心数据的一组数据。动作是另一个ManagedEntity

@NSManaged public var action: Set<Action>?

动作

public class Action: NSManagedObject, Identifiable {

    @nonobjc public class func fetchRequest() -> NSFetchRequest<Action> {
        return NSFetchRequest<Action>(entityName: "Action")
    }

    @NSManaged public var identifer: UUID?
    @NSManaged public var name: String?
    @NSManaged public var place: NSSet?

}

我尝试了List的其他选项，但没有运气。

有什么主意吗？谢谢，尼古拉斯

Answer 1

试试这个：

import SwiftUI
import CoreData


struct ContentView: View {

  @FetchRequest(sortDescriptors: [])
  var actions : FetchedResults<Action>

  var body: some View {
    List() {
      ForEach (actions){ action in
        Text(action.name ?? "no Name")
      }
    }
  }
}

SwiftUI列出了来自核心数据的Set

1 个答案: