ios - 如何在 swift 中从选定的 tableviewcell 中过滤数组？

Question

我对如何构建关于如何从 tableviewcell 中过滤所选数组的代码感到非常困惑。下面的 JSON 是 tableview 的内容，显示如

[
    {
    "hospitalNumber": "00000001",
    "patientName": "Test Patient",
    "totalAmount": 1111.3
    },
    {
    "hospitalNumber": "00000002",
    "patientName": "Test Patient 2",
    "totalAmount": 1312
    },
    {
    "hospitalNumber": "00000003",
    "patientName": "Test Patient 3",
    "totalAmount": 475
    }
]

问题是如何在下一个View Controller中显示所选的hospitalNumber和patentName，它将显示为

这就是我的“PaymentDetailsViewController”:

 var patientList: [Patient]! {
    didSet {
        latestCreditedAmountTableView.reloadData()
    }
}

  override func viewDidLoad() {
    super.viewDidLoad()

  getPatientList()

 }
  override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
      if segue.identifier == "showPatientPaymentDetailsVC" {
        if let patientPaymentDetailsVC = segue.destination as? PatientPaymentDetailsViewController {
            patientPaymentDetailsVC.isBrowseAll = self.isBrowseAll

            if !isBrowseAll {
                patientPaymentDetailsVC.patientPayoutDetails = self.selectedPatientPayment
                patientPaymentDetailsVC.currentRemittance = self.currentRemittance
                patientPaymentDetailsVC.doctorNumber = self.doctorNumber

            }
        }
    }
}


func getPatientList() {
    SVProgressHUD.setDefaultMaskType(.black)
    SVProgressHUD.show(withStatus: "Retrieving Patient List")

    APIService.PatientList.getPatientList(doctorNumber: doctorNumber, periodId: currentRemittance.periodId) { (patientListArray, error) in
        guard let patientListPerPayout = patientListArray, error == nil else {
            if let networkError = error {
                switch networkError {
                case .noRecordFound:
                    let alertController = UIAlertController(title: "No Record Found", message: "You don't have current payment remittance", preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: "OK", style: .default))
                    self.present(alertController, animated: true, completion: nil)
                case .noNetwork:
                    let alertController = UIAlertController(title: "No Network", message: "\(networkError.rawValue)", preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: "OK", style: .default))
                    self.present(alertController, animated: true, completion: nil)
                default:
                    let alertController = UIAlertController(title: "Error", message: "There is something went wrong. Please try again", preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: "OK", style: .default))
                    self.present(alertController, animated: true, completion: nil)
                }
            }
            SVProgressHUD.dismiss()
            return
        }

        self.patientList = patientListPerPayout
        self.latestCreditedAmountTableView.reloadData()
        SVProgressHUD.dismiss()
        return

    }
}

**getPerPatientPAyoutDetails(from: String) function**

func getPerPatientPayoutDetails(from: String) {
    SVProgressHUD.setDefaultMaskType(.black)
    SVProgressHUD.showInfo(withStatus: "Retrieving Patient Details")

    APIService.PatientList.getPatientDetailsPerPayout(periodId: currentRemittance.periodId, doctorNumber: doctorNumber, parameterName: .selectedByHospitalNumber, hospitalNumber: from) { (patientPayout, error) in

        guard let patientPerPayoutDetails = patientPayout, error == nil else {
            if let networkError = error {
                switch networkError {
                case .noRecordFound:
                    let alertController = UIAlertController(title: "No Record Found", message: "You don't have current payment remittance", preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: "OK", style: .default))
                case .noNetwork:
                    let alertController = UIAlertController(title: "No Network", message: "\(networkError.rawValue)", preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: "OK", style: .default))
                    self.present(alertController, animated: true, completion: nil)
                default:
                    let alertController = UIAlertController(title: "Error", message: "There is something went wrong. Please try again", preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: "OK", style: .default))
                    self.present(alertController, animated: true, completion: nil)
                }
            }
            SVProgressHUD.dismiss()
            return
        }
        self.selectedPatientPayment = patientPerPayoutDetails
        print(self.selectedPatientPayment)

        SVProgressHUD.dismiss()
        return
    }
}

基于gePatientList()函数，它只会提取患者的完整列表。我不知道如何将所选患者的数据传递给另一个 VC。希望你能帮我。非常感谢。

可能有助于理解我的代码流程的代码

 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    switch indexPath.section {
    case 0: break
    case 1: let selectedpatient = patientList[indexPath.row].hospitalNumber
    print(selectedpatient!)
    self.isBrowseAll = false
    getPerPatientPayoutDetails(from: selectedpatient!)
    default: break
    }
}

下面是另一个 View Controller ，它将显示patentName和hospitalNumber

PatientPaymentDetailsVC

class PatientPaymentDetailsViewController: UIViewController {

@IBOutlet weak var patientProcedureTableView: UITableView!
@IBOutlet weak var hospitalNumberLabel: UILabel!
@IBOutlet weak var patientNameLabel: UILabel!

var currentRemittance: CurrentRemittance!
var doctorNumber: String!
var isBrowseAll: Bool!
var patientList: [Patient]!

var patientPayoutDetails: [PatientPayoutDetails]!

 override func viewDidLoad() {
    super.viewDidLoad()

    setupPatientInfo()

 }

 //MARK: FUNCTION

 func setupPatientInfo() {
    self.patientNameLabel.text = patient.patientName
    self.hospitalNumberLabel.text = patient.hospitalNumber
}

从didselect中的getPerPatientPayoutDetails函数中拉取的数据将显示在PatientPaymentDetailsVC中。下面是输出，如您所见，我可以在 getPerPatientPayoutDetails 下提取数据，但 patentName 和 hospitalNumber 不显示数据。

Answer 1

首先不要从 TableView 单元格获取数据，而是从数据源获取

• 将 Segue 连接到单元格。
• 删除整个方法didSelectRowAt
• 当调用 prepare(for segue) 时，sender 参数是 cell。
• 从单元中获取索引路径，并将患者带到该索引路径。
• 不要传递多个参数，而是在目标 Controller 中声明 var Patient : Patient! 属性并移交 patent 实例。

---

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    guard segue.identifier == "showPatientPaymentDetailsVC",
      let cell = sender as? UITableViewCell,
      let indexPath = tableView.indexPath(for: cell) else { return }

    let patient = patientList[indexPath.row]
    getPerPatientPayoutDetails(from: patient.hospitalNumber)

    let patientPaymentDetailsVC = segue.destination as! PatientPaymentDetailsViewController
    patientPaymentDetailsVC.patient = patient
    patientPaymentDetailsVC.patientPayoutDetails = self.selectedPatientPayment
    patientPaymentDetailsVC.currentRemittance = self.currentRemittance
    patientPaymentDetailsVC.doctorNumber = self.doctorNumber
}

---

class PatientPaymentDetailsViewController: UIViewController {

@IBOutlet weak var patientProcedureTableView: UITableView!
@IBOutlet weak var hospitalNumberLabel: UILabel!
@IBOutlet weak var patientNameLabel: UILabel!

var currentRemittance: CurrentRemittance!
var doctorNumber = ""
var isBrowseAll = false
var patient : Patient!

var patientPayoutDetails: [PatientPayoutDetails]!

 override func viewDidLoad() {
    super.viewDidLoad()

    setupPatientInfo()

 }

 //MARK: FUNCTION

 func setupPatientInfo() {
    self.patientNameLabel.text = patient.patientName
    self.hospitalNumberLabel.text = patient.hospitalNumber
}

边注:

不要将 patentList 声明为隐式解包可选，将其声明为非可选空数组

var patientList : [Patient]()