Swiftui 如何将@State值指定给另一个viewModel已发布属性

如何将从一个视图标记的@State值指定给@Published sampleViewModel属性？喜欢 sampleViewModel.com已标记

以下是一个例子：

 struct ContentView: View {
    @EnvironmentObject var sampleViewModel: sampleViewModel
            @State var firstMarked = false
            @State var secondMarked = true 
            @State var thirdMarked = false
    
    var body: some View {
        VStack {
            CheckboxField(id: "Completed", label: "Completed", isMarked: $firstMarked)
            CheckboxField(id: "Completed", label: "Completed", isMarked: $secondMarked)
            CheckboxField(id: "Completed", label: "Completed", isMarked: $thirdMarked)
        }
        .padding()
    }
}

---

我们可以通过使用

.onChange

修饰符来实现这一点，如

CheckboxField(id: "Completed", label: "Completed", isMarked: $secondMarked)
  .onChange(of: secondMarked) {
     sampleViewModel.secondMarked = $0     // << here !!
  }

CheckboxField（id:“已完成”，标签：“已完成”，标记：$secondMarked）
.onChange（of:secondMarked）{
sampleViewModel.secondMarked=$0/只需使用一个属性，而无需为其提供
@State
和
@Published
属性

例如，您的：

CheckboxField(id: "Completed", label: "Completed", isMarked: $firstMarked)

试试这个：

CheckboxField(id: "Completed", label: "Completed", isMarked: $sampleViewModel.firstMarked)