text field become blank when table View Scrolled in two Section Swift - ios

Question

here is a table View with two Different Section Inside VC2 to Modify or add Contact into phone . the problem it is text fields become blank in Sections when table view scrolled . i found a way to fix this Problem in section 1 but i cant Handle section 2 .
Model :
class ContactModel : NSObject {
var identifier : String!
var thumbnailImageData : UIImage?
var givenName : String!
var familyName : String!
var phoneNumbers : [String]!
var emailAddresses : [String]!
override init() {
self.phoneNumbers = []
self.emailAddresses = []
super.init()
}
VC2 :
var contactModel = ContactModel()
#IBOutlet weak var tvInsert: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell0 = tableView.dequeueReusableCell(withIdentifier: "InsertTableCell0") as! InsertTableCell0
cell0.txtFirstName.text = self.contactModel.givenName
cell0.txtLastName.text = self.contactModel.familyName
return cell0
}else if indexPath.section == 1 {
let cell1 = tableView.dequeueReusableCell(withIdentifier: "InsertTableCell1") as! InsertTableCell1
cell1.btnDelete.addTarget(self, action: #selector(deleteRowDate(_:)), for: .touchUpInside)
cell1.txtPhoneNumber.placeholder = "Phone Number"
cell1.txtPhoneNumber.text = contactModel.phoneNumbers[indexPath.row]
cell1.txtPhoneNumber.delegate = self
cell1.txtPhoneNumber.tag = indexPath.row
return cell1
}else {
let cell2 = tableView.dequeueReusableCell(withIdentifier: "InsertTableCell2") as! InsertTableCell2
cell2.btnEmail.addTarget(self, action: #selector(deleteRowDate(_:)), for: .touchUpInside)
cell2.txtEmail.placeholder = "Email"
cell2.txtEmail.text = contactModel.emailAddresses[indexPath.row]
cell2.txtEmail.delegate = self
cell2.txtEmail.tag = indexPath.row
return cell2
}
}
func textFieldDidEndEditing(_ textField: UITextField) {
if let aText = textField.text {
self.contactModel.phoneNumbers[textField.tag] = aText
}
}

Answer 1

Seems like all the fields delegates are self and textFieldDidEndEditing is setting data for all the fields instead of phone number fields.
you have to check if the textField is phone number or not and also you should update the data in model when textField text is changed instead of end editing.
Easier solution will be :- Remove this line "cell1.txtPhoneNumber.delegate = self"
Replace var phoneNumbers: [String]! in model with following
var phoneNumbers = ["","",""] //for 3 phone numbers
Put this code in cellForRow of the particular cell i.e (indexPath.section == 1) for the above question
//Saved Phone number in model
cell.txtPhoneNumber.text = contactModel.phoneNumbers[indexPath.row]
//Get and save Phone number when changed
cell.txtPhoneNumber.tag = indexPath.row
cell.txtPhoneNumber.addTarget(self, action: #selector(self.phoneNumberChanged(_:)), for: .editingChanged)
In the ViewController
#objc func phoneNumberChanged(_ sender: UITextField){
//Phone number changed
contactModel.phoneNumbers[sender.tag] = sender.text ?? ""
}
In case you want to save the phone number on end Editing replace .editingChanged with .editingDidEnd