How to create new cells when button on cell is pressed in tableview - ios

Question

*I want to insert new rows each time when add button is pressed ( condition: a valid email address is entered).
enter image description here
Here is my code:
import UIKit
var totalCells=0
class AddEmailTableCell: UITableViewCell,UITextFieldDelegate {
var obj:UIViewController=ViewController()
#IBOutlet weak var textField: UITextField!
#IBOutlet weak var addButton: UIButton!
#IBOutlet weak var addEmailLabel: UILabel!
#IBOutlet weak var addEmailImg: UIImageView!
func isValidEmail(testStr:String) -> Bool {
// print("validate calendar: \(testStr)")
let emailRegEx = "[A-Z0-9a-z._%+-]+#[A-Za-z0-9.-]+\\.[A-Za-z]{2,}"
let emailTest = NSPredicate(format:"SELF MATCHES %#", emailRegEx)
return emailTest.evaluate(with: testStr)
}
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
addButton.isHidden=true
self.textField.delegate=self
}
#IBAction func addEmailButton(_ sender: Any) {
if(textField.text == nil || (textField.text?.isEmpty)! ) {
print("email not filled")
return
}
if (isValidEmail(testStr: textField.text!)==false){
print("email not valid")
return
}
totalCells=totalCells+1
let index=IndexPath(row: totalCells, section: 0)
(obj as! ViewController).tableView.insertRows(at: [index], with: UITableViewRowAnimation.automatic)
print(totalCells)
print("valid")
}
}
My viewController code is given here:
import UIKit
class ViewController:
UIViewController,UITableViewDelegate,UITableViewDataSource {
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if totalCells==0{
return 1
}
return totalCells
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell=tableView.dequeueReusableCell(withIdentifier: "addEmail", for: indexPath) as! AddEmailTableCell
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 60
}
}
so what should i do here, I am calling tableview.reloadData and passing updated number of cells to my tableview, but it is not working.

Answer 1

You should move isValidEmail() and addEmailButton() to your ViewController and control tableview in this controller.