Swift中的Binding<Bool>到Binding<Bool?>

Question

NavigationLink的selected参数接受绑定，但我的ObservedObject有Bool变量，而不是可选值。如何将其转换为selected会接受它？

代码：

class RegistrationFlowEnvironment: ObservableObject {
    
    @Published var done = false
}

视图：

struct ContentView: View {
    @ObservedObject var regFlowEnv = RegistrationFlowEnvironment()
    
    var body: some View {
        NavigationView {
            VStack{
                NavigationLink("Go to other place", destination: Dest(),
                               tag: true,
                               selection: $regFlowEnv.done)
            }
        }
    }
}

Answer 1

这里是固定的变体(使用Xcode11.7/ iOS 13.7进行测试)

NavigationView {
    VStack{
        NavigationLink("Go to other place", destination: Text("Dest"),
                       tag: true,
                       selection: Binding($regFlowEnv.done))
    }
}