Question

我有带名称和ID的json数据。即时通讯使用pickerview查看json名称。如果用户选择了json的名称，则该名称将出现在textfield。但是问题是我只需要发送ID的名称不在服务器参数中命名

这是我的代码

var Officerlist = [DistrictNames]()

func numberOfComponents(in pickerView: UIPickerView) -> Int {

        return 1
    }

    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        return Officerlist.count
    }

    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {

        return Officerlist[row].userName
    }

    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        let DistrictsName = Officerlist[row].userName
        DistrictUnit.text = DistrictsName
        return
    }
        func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {

        var label: UILabel

        if let view = view as? UILabel {
            label = view
        }else {
            label = UILabel()
        }

        label.textColor = UIColor.red
        label.textAlignment = .center
        label.font = UIFont(name: "Menlo-Regular", size: 18)
        label.text = Officerlist[row].userName

        return label
    }
let parameter = ["officerId": DistrictUnit.text!]

Answer 1

您将通过params[:product]方法获得ID

didSelectRow

还有一件事是var index = Int() func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { let districtsName = Officerlist[row].userName index = row // It gives selected row index index = Officerlist[row].id // It gives selected row Id DistrictUnit.text = districtsName return }应该以小写字母开头。

Answer 2

在方法之外创建对象，例如：

var selectedOfficer: DistrictNames?

然后当用户在您的row方法中选择任何didSelectRow时保存它，例如：

selectedOfficer = Officerlist[row]

您的方法将如下所示：

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

    let DistrictsName = Officerlist[row].userName
    DistrictUnit.text = DistrictsName
    selectedOfficer = Officerlist[row]
}

现在，当您创建parameter时，您可以像这样获得它：

if let selectedOfficeObj = selectedOfficer {

    let parameter = ["officerId": selectedOfficeObj.id] 
}

如何将参数中的ID发送到我的服务器？

2 个答案: