无法使用 RXCOCA 生成表视图

Question

我有一个应用程序，可以显示当前的天气。数据通过Alamofire从 forecast.io 下载。结果形成一个包含预测的表格。我使用了简单的tableviewdelegate和tableview数据源，一切正常。但是现在我想学习一些反应式的，使用rxswift和rxcocoa。经过一些谷歌搜索，以及来自raywanderlich的教程：我将代码更改为：

var week = Variable<[DailyWeather]>([])
override func viewDidLoad() {
    super.viewDidLoad()
    week.asObservable().subscribe { (e) in
        self.generateTable()
    }.addDisposableTo(disposeBag)
//        tableView.delegate = self
//        tableView.dataSource = self
        tableView.backgroundColor = UIColor(red:0.81, green:0.81, blue:0.81, alpha:1)
        refreshControl.tintColor = UIColor(red:1, green:1, blue:1, alpha:1)
        self.tableView.addSubview(self.refreshControl)
        manager.delegate = self
        manager.requestWhenInUseAuthorization()
        updateLocation()

}
func downloadData(_ completion: @escaping DownloadComplete) {
    var weatherURL: String {
        if pre == "ru" {
            return("(BASE_URL)(API_KEY)/(latitudeNew),(longitudeNew)?units=si&lang=ru")
        } else {
            return("(BASE_URL)(API_KEY)/(latitudeNew),(longitudeNew)?units=si")
        }
    }
    print(weatherURL)
    if let url = URL(string: weatherURL) {
        let request = Alamofire.request(url)
        request.validate().responseJSON { response in
            switch response.result {
            case .success:
                self.week.value = []
                self.weekly = []
                if let data = response.result.value as! [String: AnyObject]! {
                    self.weatherDict = data["currently"] as! [String: AnyObject]!
                    self.currentDict = CurrentWeather(weatherDictionary: self.weatherDict)
                    self.dailyArray = data["daily"]?["data"] as! [[String: AnyObject]]!
                    for dailyWeather in self.dailyArray {
                        let daily = DailyWeather(dailyWeatherDict: dailyWeather)
                        self.weekly.append(daily)
                    }
                    for x in 0...7 {
                        if x == 0 {
                        } else {
                            self.week.value.append(self.weekly[x])
                        }
                    }
                    completion()
                }
            case .failure(let error):
                self.showAlert("You are offline", message: "Enable network connection and try again")
                print("Alamofire error: (error)")
            }
        }
    }
}

func generateTable() {
    week.asObservable().bindTo(tableView.rx.items(cellIdentifier: "WeatherViewCell", cellType: WeatherViewCell.self)) { (index, weather, cell) in
        cell.configureCell(daily: weather, index: index)
        }.addDisposableTo(disposeBag)
}

但是我收到这个致命错误：

fatal error: Failure converting from Optional(<UIView: 0x7facad60f620; frame = (0 0; 414 736); autoresize = W+H; layer = <CALayer: 0x60800002e520>>) to UITableViewDataSource: file /Users/ruslansabirov/Desktop/swift/Havo4/Pods/RxCocoa/RxCocoa/RxCocoa.swift, line 146
(lldb) 

请帮忙，我做错了什么？

Answer 1

检查表视图委托和数据源方法。如果在代码中设置了表视图委托，则必须在使用 RXSwift 时实现表视图的委托方法，否则应用程序崩溃。

Answer 2

你只需要调用func generateTable((一次。表视图将自动更新。因为它是数据绑定覆盖

 func viewDidLoad() {
    super.viewDidLoad()
        self.generateTable()
        tableView.backgroundColor = UIColor(red:0.81, green:0.81, blue:0.81, alpha:1)
        refreshControl.tintColor = UIColor(red:1, green:1, blue:1, alpha:1)
        self.tableView.addSubview(self.refreshControl)
        manager.delegate = self
        manager.requestWhenInUseAuthorization()
        updateLocation()

}