如果ObservedObject属性更改，则使用SwiftUI导航

class NavigationModel: ObservableObject {
    @Published var isActive: Bool = false
}

struct ContentView: View {
    @ObservedObject var navigationModel = NavigationModel()
    
    var body: some View {
        NavigationView {
            VStack {
                Text("Hello, SwiftUI!")
            }
            .navigationBarTitle("My App")
            .navigationBarItems(trailing:
                Button(action: {
                    self.navigationModel.isActive = true
                }) {
                    Text("Next")
                }
                .sheet(isPresented: $navigationModel.isActive) {
                    NextView()
                }
            )
        }
    }
}

struct NextView: View {
    @Environment(\.presentationMode) var presentationMode
    
    var body: some View {
        VStack {
            Text("Next View")
            Button(action: {
                self.presentationMode.wrappedValue.dismiss()
            }) {
                Text("Dismiss")
            }
        }
    }
}