小编Pum*_*lad的帖子

我有这样的用例，我有一个父视图和一个子视图。两个视图都有自己对应的 ViewModel。

家长视图：

struct ParentView: View {

  @StateObject var parentViewModel = ParentViewModel()

  var body: some View {
    NavigationView {
        List {
            TextField("Add Name", text: $parentViewModel.newListName)
            NavigationLink(destination: ChildView()) {
                Label("Select Products", systemImage: K.ListIcons.productsNr)
            }
        }
    }
}

父视图模型：

class ParentViewModel: ObservableObject {

  @Published var newListName: String = ""

  func saveList() {
    // some logic to save to CoreData, method would be called via a button
    // how do I reference "someString" from ChildViewModel in this ViewModel?
  }
}

子视图：

struct ChildView: …