ios - UITableView 和模型数组中的单元格

Question

我陷入了一些我不太明白的事情，因为从一些测试来看，表格单元格的生成似乎是在页面加载和 Alamofire 请求之前发生的，但在页面加载和 Alamofire 请求之后则不然。

如果您看到下面的内容，我正在尝试在引用专业人士后将其转到查看我们博物馆的出境 cargo 的位置:

import Alamofire
import SwiftyJSON

class ShipmentProSearchResultsTableViewController: UITableViewController {

    var pronumber:String = ""
    var shipments = [Shipment]()
    typealias JSONStandard = [String: AnyObject]

    override func viewDidLoad() { 
        super.viewDidLoad()
        fetchShipments()

    }

    func fetchShipments() {
        let parameters: Parameters = ["pro_number": pronumber]
        let todoEndpoint: String = "OURHOST/shipments/api/details/pro"
        Alamofire.request(todoEndpoint, method: .get, parameters: parameters)
            .responseJSON { response in
            if response.result.isSuccess{
                let shipmentJSON : JSON = JSON(response.result.value!)
                for (index, subJson):(String, JSON) in shipmentJSON{
                    let proNumber = subJson["proNumber"].int
                    let consigneeName = subJson["consignee"]["name"].string
                    let shipment = Shipment(proNumber: proNumber!, consigneeName: consigneeName!)

                    self.shipments.append(shipment)
                }
                print(self.shipments)
            }else{
                print("Could not get results")
            }
        }
    }


    // MARK: - Table view data source

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return shipments.count
    }


    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "ShipmentCell", for: indexPath)
        let shipment = shipments[indexPath.row]

        cell.textLabel?.text = "Hello"
        cell.detailTextLabel?.text = "\(shipment.proNumber)"

        return cell
    }
}

现在，我打印了 self.shipments，得到了以下结果:

[OakRidgeArchaeologicalRepositoryDispatcher.Shipment(proNumber: 471008276, consigneeName: "A1 CHICAGO INSTITUTE OF THE ARTS")]

所以我知道数据已正确传递给模型。我还将注意到 Storyboard中的 TableView 单元标识符已正确设置为 ShipmentCell。但查询后，我的表中没有弹出任何内容。

我使用的是 Swift 4。

Answer 1

更新源字段后，您应该重新加载tableView。

func fetchShipments() {
        let parameters: Parameters = ["pro_number": pronumber]
        let todoEndpoint: String = "OURHOST/shipments/api/details/pro"
        Alamofire.request(todoEndpoint, method: .get, parameters: parameters)
            .responseJSON { response in
            if response.result.isSuccess{
                let shipmentJSON : JSON = JSON(response.result.value!)
                for (index, subJson):(String, JSON) in shipmentJSON{
                    let proNumber = subJson["proNumber"].int
                    let consigneeName = subJson["consignee"]["name"].string
                    let shipment = Shipment(proNumber: proNumber!, consigneeName: consigneeName!)

                    self.shipments.append(shipment)
                }
                tableView.reloadData() //<-------add this.
                print(self.shipments)
            }else{
                print("Could not get results")
            }
        }
    }