迅捷+；组合框架&x2B；MVVM发布服务器返回空列表

我正在使用Swift用户界面中的MVVM架构与combineframework和Alamofire。 然而，数据被返回到可观测对象，并且正在打印意味着Alamofire和api层中发布的数据，但它不会查看可观测对象中的数据。 我在publisher中打印响应及其打印，但不返回视图

下面是可观察的物体

import SwiftUI
import Combine

class CountryViewModel: ObservableObject {
    
    @Published var countryResponse:[CountryResponse] = []
    
    @Published var isLoggedIn = false
    @Published var isLoading = false
    
    @Published var shouldNavigate = false
    
    private var disposables: Set<AnyCancellable> = []
    
    var loginHandler = CountryHandler()
    
    @Published var woofUrl = ""
    
    private var isLoadingPublisher: AnyPublisher<Bool, Never> {
        loginHandler.$isLoading
            .receive(on: RunLoop.main)
            .map { $0 }
            .eraseToAnyPublisher()
    }
    
    private var isAuthenticatedPublisher: AnyPublisher<[CountryResponse], Never> {
        loginHandler.$countryResponse
            .receive(on: RunLoop.main)
            .map { response in
                guard let response = response else {
                    return []
                }
                print(response)
                return response
            }
        .eraseToAnyPublisher()
    }
    
    init() {
        countryResponse = []
        isLoadingPublisher
            .receive(on: RunLoop.main)
            .assign(to: \.isLoading, on: self)
            .store(in: &disposables)
        
        isAuthenticatedPublisher.map([CountryResponse].init)
            .receive(on: DispatchQueue.main)
            .sink(receiveCompletion: { [weak self] value in
              guard let self = self else { return }
              switch value {
              case .failure:
                self.countryResponse = []
              case .finished:
                break
              }
              }, receiveValue: { [weak self] weather in
                guard let self = self else { return }
                self.countryResponse = weather
            })
            .store(in: &disposables)
           //        isAuthenticatedPublisher
          //            .receive(on: RunLoop.main)
         //            .assign(to: \.countryResponse, on: self)
        //            .store(in: &disposables)
    }
        
    public func getAllCountries(){
        loginHandler.getCountryList()
    }
    
    public func getAllUnis(_ id:Int){
        loginHandler.getCountryList()
    }
}

---

提前谢谢。

您能显示查看代码吗？您说收到值的

print

语句在哪里？@NewDev我更新了视图代码并添加了print语句。您需要将属性设置为ObservedObject:

@ObservedObject var viewModel:CountryViewModel

非常感谢您的完美！！！！在过去的两天里，我尝试了不同的解决方案。你能显示视图代码吗？您说收到值的

print

语句在哪里？@NewDev我更新了视图代码并添加了print语句。您需要将属性设置为ObservedObject:

@ObservedObject var viewModel:CountryViewModel

非常感谢您的完美！！！！在过去的两天里，我尝试了不同的解决方案

struct ContentViewCollection: View {
    
    @Binding var selectedCountryId:Int
    var axis : Axis.Set = .horizontal
    var viewModel:CountryViewModel
    @State var countries:[CountryResponse] = []
    
    var body: some View {
        ScrollView (.horizontal, showsIndicators: false) {
            HStack {
                ForEach(self.viewModel.countryResponse) { (postData) in
                    Button(action: {
                        self.selectedCountryId = postData.countryID ?? 0
                    }){
                        WebImage(url: self.imageURL(postData.countryName ?? ""))
                            .resizable()
                            .indicator(.activity)
                            .scaledToFit()
                            .frame(minWidth: 40,maxWidth: 40, minHeight: 40, maxHeight: 40, alignment: .center)
                    }
                    
                }
            }
        }.onAppear() {
            self.loadData()
        }
    }
}