RxSwift+Moya+Moya_ObjectMapper+MJRefresh，刷新失败了？

Question

我是RxSwift的新成员。，我想刷新表视图，以显示新的数据，，.The，首先请求我可以获得数据。但是当我拉下桌面视图时，请求没有完成。我不知道这件事？我的代码如下：

1:我的视图控制器代码：

class RecommendViewController: UIViewController {

lazy var tableView = DefaultManager.createTableView(HomeImageCell.self, 
                                                    HomeImageCell.idenfitier)
let disposeBag = DisposeBag()
lazy var viewModel = HomeViewModel()
lazy var dataSource: [HomeListDetailModel] = []

override func viewDidLoad() {
    super.viewDidLoad()
    viewModel.fetchRecommendList("answer_feed",0)
    setupTableView()
    configureRefresh()
    bindDataToTableView()
}

func setupTableView() {
    view.addSubview(tableView)
    tableView.snp.makeConstraints { (make) in
        make.edges.equalTo(0)
    }
    tableView.estimatedHeight(200)
}

func bindDataToTableView() {
    viewModel.recommend
        .observeOn(MainScheduler.instance)
        .do(onNext: { [unowned self] model in
            print("endAllRefresh")
            self.endAllRefresh()
        }, onError: { (error) in
            self.endAllRefresh()
            print("error = \(error)")
        })
        .map { [unowned self] model in
            return self.handleData(model)
        }.bind(to: tableView.rx.items(cellIdentifier: HomeImageCell.idenfitier , cellType: HomeImageCell.self )) { index, model, cell in
            cell.updateCell(data: model)
        }.disposed(by: disposeBag)
}

func configureRefresh() {
    tableView.mj_header = MJRefreshNormalHeader(refreshingBlock: { [unowned self] in
        let model = self.dataSource[0]
        self.viewModel.fetchRecommendList("answer_feed",model.behot_time)

    })
    tableView.mj_footer = MJRefreshAutoNormalFooter(refreshingBlock: { [unowned self] in
        let model = self.dataSource[self.dataSource.count - 1]
        self.viewModel.fetchRecommendList("answer_feed",model.behot_time)
    })
}

func endAllRefresh() {
    self.tableView.mj_header.endRefreshing()
    self.tableView.mj_footer.endRefreshing()
}

func handleData(_ model: HomeListModel) -> [HomeListDetailModel] {
    guard let data = model.detailData else {
        return dataSource
    }
    self.dataSource = data
    return data
}
}

2:我的ViewModel

protocol HomeProtocol {
    func fetchRecommendList(_ category: String, _ behot_time: Int) 
}

class HomeViewModel: HomeProtocol  {
    lazy var provider = HTTPServiceProvider.shared
    var recommend: Observable<HomeListModel>!

    init() {}

    init(_ provider: RxMoyaProvider<MultiTarget>) {
       self.provider = provider
    }

    func fetchRecommendList(_ category: String, _ behot_time: Int) {
        recommend = provider.request(MultiTarget(HomeAPI.homeList(category: category,behot_time: behot_time)))
        .debug()
        .mapObject(HomeListModel.self)
    } 
 }

当我在请求方法中创建断点时，它没有执行请求？有人知道吗？先谢谢

Answer 1

SomeOne告诉我原因，所以我写在这里。在我的ViewModel中，recommend应该得到PublishSubject、BehaviourSubject或ReplaySubject的支持，然后我应该将它作为Observable共享给View。在fetchRecommentList方法中，我应该将请求绑定到创建的Subject。现在我已经创建了可观察的，但是请求将运行在subsribe或bind之后。