CODEWITHSUNDEEP
iosswift
Alessio Buttitta
Alessio Buttitta

Reputation: 13

override prepareForSegue doesn't work

SecondViewController's Code

@IBAction func ContinueFunc(_ sender: AnyObject) {
    if (NomeAziendaText.text != "" && NumeroBlocchiText.text != "" &&           NumeroMacroText.text != ""){
    nome = NomeAziendaText.text!
    na = Int(NumeroMacroText.text!)!
    nb = Int(NumeroBlocchiText.text!)!
    Azienda.inizia(name: nome, numbermacro: na, numberblocchi: nb)

        self.performSegue(withIdentifier: "next", sender: nil)
    }
    else {NomeAziendaText.text = ""
        NumeroBlocchiText.text = ""
        NumeroMacroText.text   = ""
        LabelAvvisi.text = " Inserisci tutti i valori"
}

/*
// MARK: - Navigation*/

 func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    print("pippa")

    if (segue.identifier == "next"){
        if let vc_destinazione = segue.destination as?{


            vc_destinazione.stringaDiPassaggio = nome
        }

    }

    // Get the new view controller using segue.destinationViewController.
    // Pass the selected object to the new view controller.
}`

ThirdViewController's Code

 import UIKit
 class ThirdViewController: UIViewController {
var stringaDiPassaggio: String = String()
var numero: Int = 0
@IBOutlet var Bottone: UIButton!
@IBOutlet var myLabel: UILabel!
override func viewDidLoad() {
    super.viewDidLoad()
  print(stringaDiPassaggio)
    // Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
    @IBAction func FunzioneBottone(_ sender: AnyObject) {

}

}`

Why no data pass from SecondViewController to ThirdViewController? If i override the method PrepareFor segue it show an error which say i doesn't override any method of super class

Help me please

Upvotes: 1

Views: 554

Answers (2)

Graham Perks
Graham Perks

Reputation: 23400

The signature should be 

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
}

You have 

func prepare(for segue: ...

Upvotes: 1

Soul
Soul

Reputation: 50

make sure that you have connected the view controllers and correct this

          performSegueWithIdentifier("next", sender: self)

then correct this

 if (segue.identifier == "next"){
    if let vc_destinazione = segue.destination as! ThirdViewController {


        vc_destinazione.stringaDiPassaggio = nome
    }

}

Upvotes: 1

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