Swift 3 - Passing data between a View Controller and after that to another 2

Question

I\'m trying to perform a segue which it doesn\'t work. What i\'m trying to do is send the data which i have in a textfield in my View Controller(Main), after that i want t

Answer 1

Before calling presentViewController add :

nextViewController.name = yourTextField.text

You could also delete the segue call. That is redundant.

Here is an example that I've used in the past :

    @IBAction func doSegue(_ sender: UIButton) {
        buttonTag = sender.tag

        let storyboard = UIStoryboard (name: "Main", bundle: nil)
        let resultVC = storyboard.instantiateViewController(withIdentifier: "ResultViewController")as! ResultViewController

        // Communicate with new VC - These values are stored in the destination
        // you can set any value stored in the destination VC here
        resultVC.firstValue = buttonTag
        resultVC.secondValue = randomOpponentValue()
        self.navigationController?.pushViewController(resultVC, animated: true)
    }

Answer 2

1.So get rid of this code, because if you are calling performSegue you don’t need that one.

let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "OP") as! OpcionesController
self.present(nextViewController, animated:true, completion:nil)

2.Then in the prepareForSegue

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
  if segue.identifier == “YourSegueIdentifier" {
    let destination: OpcionesController = segue.destination as! OpcionesController
    destination.name = txtCorreo.text
  }
}

3.Replace this code:

if let nametoDisplay = name {
    displayLbl.text = name
}

with:

displayLbl.text = name