How do I call a different function for each TextField in a UITableView (Swift)?

Question

I have a UITableView and my prototype cell consists of a label and a TextField. I also have a class MyClass that contains functions func1, func2, fun3, ... I have several ViewControllers that use the same tableViewCell prototype. Each viewController will have an instance of MyClass, called inst1, inst2, and inst3. When I enter text into FirstViewController's TableView I want each row to call a function from the instance of MyClass that corresponds to the row.

So when I enter text into row 1 on the FirstViewController I want to pass the data entered into the textField into func1 of inst1. When data is entered into row 2 of FirstViewController I want the data in the textfield to be passed into func2 of inst1. And so on and so forth down the rows.

I am very new to this and would really appreciate some help figuring out how to do this. Let me know if that doesn't make sense and I can try to rephrase it. I really need help with this. Thanks in advance!

*Updated question to show my code

Below is my Code: FirstViewController.swift

extension FirstViewController: MyCellDelegate {
    func MyCell(_ cell: UITableViewCell, didEnterText text: String) {
        if let indexPath = tableView.indexPath(for: cell) {
            if (indexPath.hashValue == 0) {
                inst1.func1(one: text)
            }
            if (indexPath.hashValue == 1) {
                inst1.func2(two: text)
            }
        }
        totalText.text = inst1.getMyTotal()
    }
}

import UIKit

class FirstViewController: UIViewController,  UITableViewDataSource, UITableViewDelegate {
    let inst1 = MyClass()
    @IBOutlet weak var totalText: UILabel!
    @IBOutlet weak var tableView: UITableView!

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 11
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "myTableCell") as! TableViewCell
        let text = cell.cellData[indexPath.row]
        cell.myTextField.tag = indexPath.row
        cell.delegate = self
        cell.myLabel.text = text
        cell.myTextField.placeholder = text
        return cell
    }

    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        tableView.dataSource = self
        tableView.delegate = self
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
}

TableViewCell.swift

import UIKit
protocol MyCellDelegate: class {
    func MyCell(_ cell: UITableViewCell, didEnterText text: String)
}

class TableViewCell: UITableViewCell {
    weak var delegate: MyCellDelegate?

    public var cellData: [String] = ["1","2","3","4","5","6","7","8","9","10","11"]

    @IBOutlet weak var myLabel: UILabel!

    @IBOutlet weak var myTextField: UITextField!

    override func awakeFromNib() {
        super.awakeFromNib()
    }

    override func setSelected(_ selected: Bool, animated: Bool) {
    }
}

When I set a breakpoint in the FirstViewController extension it never runs that code.

Answer 1

In WillDisplayCell add the tag to the UITextField. Also create a protocol to notify the Corrosponding viewController and set itself as the delegate here.

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
 let cell = tableView.dequeueReusableCell(withIdentifier: "reuseIdentifier")
 cell.textField.tag = indexPath.row
 cell.delegate = self
 }

The protocol in your cell class will look something like this

protocol MyCellDelegate: class {
func MyCell(_ cell: UITableViewCell, didEnterText text: String)
}

class MyCell: UITableViewCell, UITextFieldDelegate {
weak var delegate: MyCellDelegate?
override fun awakeFromNib() {
 super.awakeFromNib()
 textField.delegate = self
 }
//All the remaining code goes here


func textFieldShouldReturn(_ textField: UITextField) -> Bool {   //delegate method
textField.resignFirstResponder()
delegate?.MyCell(self, didEnterText: textField.text! )
return true
}
}

Now again in your FirstViewController which has conformed to be its delegate do this

extension FirstViewController: MyCellDelegate {
 func MyCell(_ cell: UITableViewCell, didEnterText text: String) {
 if let indexPath = tableView.indexPathForCell(cell) {
   // call whichever method you want to call based on index path
  }
 }