Question

我想将数据解析为tableviewcontroller，但它没有显示任何内容

这是网络服务数据：

我想访问密钥＆＃34;列表＆＃34;

中的标题，img_url和price_formatted

用户输入他正在搜索的城市名称和家庭类型，我使用userdefaults保存这些值并在PropertySearchViewController中接收它们。

这是我使用almofire显示这些值的代码：

我有PropertySearchViewController，我在其中显示其中的值，PropertyTableViewCell和公共模型属性

1 -

=SUMPRODUCT(--({2,0,0,5}>2))

// PropertySearchViewController的结尾

2 -

=COUNT(IF({2,0,0,5}>2,1,""))

3 -

class PropertySearchViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

    let URL_Get_Data = "https://api.nestoria.co.uk/api?"


    @IBOutlet weak var tableViewProperty: UITableView!

    var properties = [Property]()

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

    public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! PropertyTableViewCell
        let property :Property
        property = properties[indexPath.row]
        cell.propertyTitle.text = property.title
        cell.propertyPrice.text = property.price
        if property.imageUrl != nil {

        Alamofire.request(property.imageUrl!).responseImage { response in
            debugPrint(response)

            if let image = response.result.value {
                cell.propertyImage.image = image
            }
            else{
                print("no image")
            }
            }}
        return cell
    }


       override func viewDidLoad() {
        super.viewDidLoad()

            //fetching data from web api
        //recieve data
        let city :String = UserDefaults.standard.string(forKey: "city")!

        let type :String = UserDefaults.standard.string(forKey: "typeP")!

        print("search values are :",city,type)
        let params: [String: String] = ["encoding": "json", "pretty": "1", "action": "search_listings", "country": "uk", "listing_type": type, "place_name": city]


        //end


//        
        Alamofire.request(URL_Get_Data, method: .get, parameters: params, encoding: URLEncoding.default, headers: nil).validate(statusCode: 200..<600).responseJSON {
//        Alamofire.request(URL_Get_Data).responseJSON {
            response in

//            response in
            //getting json
            if let json = response.result.value {
                print(type(of: json))
                //converting json to NSArray

                let propertyArray = json as! NSDictionary

                //traversing through all elements of the array
                for i in 0..<propertyArray.count{

                    //adding hero values to the hero list
                    self.properties.append(Property(
                        title: (propertyArray[i] as AnyObject).value(forKey: "title") as? String,
                        price: (propertyArray[i] as AnyObject).value(forKey: "price_formatted") as? String,
                        imageUrl: (propertyArray[i] as AnyObject).value(forKey: "imageUrl") as? String
                    ))

                }

                //displaying data in tableview
                self.tableViewProperty.reloadData()
            }
        }

    }}

提前致谢

Answer 1

（1）安装pod SwiftyJSON

（2）PropertySearchViewController中的import SwiftyJSON

（3）在let reuseIdentifierResultTable = "cell"

下面添加let URL_Get_Data = "url"

（4）加入viewDidLoad()
tableViewProperty.register(PropertyTableViewCell.self, forCellReuseIdentifier: reuseIdentifierResultTable)
tableViewProperty.delegate = self
tableViewProperty.dataSource = self

（5）将.responseJSON{}中的每一个替换为

    response in

    if let data = response.data {
        let json = String(data: data, encoding: String.Encoding.utf8)
        //print(json)
        if let dataFromString = json?.data(using: .utf8, allowLossyConversion: false) {
            let json2 = JSON(data: dataFromString)

            print("Response: \(json2)")

            print("json status code: \(json2["response"]["status_code"])")

            if json2["response"]["status_code"] == "200" && !(json2.null != nil){

                print("json request count: \(json2["request"].count)")
                print("json response count: \(json2["response"].count)")
                print("json response listings count: \(json2["response"]["listings"].count)")

                for i in 0...json2["response"]["listings"].count-1 {
                    print("\(i). \(json2["response"]["listings"][i]["title"])")
                    self.properties.append(Property(
                        title: json2["response"]["listings"][i]["title"].rawString()!,
                        price: json2["response"]["listings"][i]["price_formatted"].rawString()!,
                        imageUrl: json2["response"]["listings"][i]["img_url"].rawString()!
                    ))
                }
            }
        }
        self.tableViewProperty.reloadData()
    }

（6）替换为public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{ if properties.count < 1 { return 0 } return properties.count }

（7）替换

let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! PropertyTableViewCell

同

let cell = Bundle.main.loadNibNamed("PropertyTableViewCell", owner: self, options: nil)?.first as! PropertyTableViewCell

（8）替换
cell.propertyTitle.text = property.title! cell.propertyPrice.text = property.price!

在Swift3中解析alamofire在tableview中的数据

1 个答案: