append all textfields in tableview cells to array - arrays

Question

I want my swift code to take the characters in each textfield and convert then into a array when func append is called. You can see the comment in the func as well. The user when the func is called will take all of the textfields in class customtv and add them to array empty. Assume that every textfield contains a int.
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var empty = [Int]()
var appended = UIButton()
var tableView = UITableView()
var arr = [0,1,2,3,4]
#objc func append(){
///append all of the textfiels into array empty. All of the textfiels are in customtv
}
override func viewDidLoad() {
super.viewDidLoad()
appended.backgroundColor = .orange
view.addSubview(appended)
let VCframe = view.frame
let height = VCframe.height * 0.8
let height2 = VCframe.height * 0.2
let widthx = VCframe.width
appended.frame = CGRect(x: 0, y: height, width: widthx, height: height2)
appended.addTarget(self, action: #selector(append), for: .touchDown)
tableView.frame = CGRect(x: 10, y: 0, width: widthx - 20, height: height)
tableView.delegate = self
tableView.dataSource = self
view.addSubview(tableView)
tableView.register(customtv.self, forCellReuseIdentifier: "cell")
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat { 118 }
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arr.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! customtv
cell.lbl.text = "\(arr[indexPath.row])"
return cell
}
}
class customtv: UITableViewCell {
lazy var backView : UIView = {
let view = UIView(frame: CGRect(x: 10, y: 6, width: self.frame.width , height: 110))
view.backgroundColor = .green
print(self.frame.width)
return view
}()
override func layoutSubviews() {
backView.clipsToBounds = true
backView.frame = CGRect(x: 0, y: 6, width: bounds.maxX , height: 110)
}
lazy var lbl : UILabel = {
let press = UILabel(frame: CGRect(x: 0, y: 3, width: 120 , height: 50))
press.backgroundColor = .yellow
press.text = String("1")
return press
}()
lazy var txtField : UITextField = {
let press = UITextField(frame: CGRect(x: 100, y: 3, width: 120 , height: 50))
press.backgroundColor = .white
press.textAlignment = .center
return press
}()
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(animated, animated: true)
addSubview(backView)
backView.addSubview(lbl)
backView.addSubview(txtField)
}
}

Answer 1

Try this, please. This works with Swift 5.
func append() {
let arrayTextFields = (0..<arr.count).compactMap { (tableView.cellForRow(at: IndexPath(row: $0, section: 0)) as? customtv)?.txtField }
}
if you want to get Int values from text fields, you can add this.
let arrayValues = arrayTextFields.compactMap { Int($0.text!) }