CODEWITHSUNDEEP
iosswiftviewcontroller
dimery2006
dimery2006

Reputation: 345

prepareforSegue Not Passing Data

I'm having trouble passing a string (StringVar) between view controllers using prepareforSegue. I've studied various tutorials on this subject, but I'm still unsuccessful (I'm a novice, so the problem might be something obvious). My code is structured as follows:

Originating ViewController: 

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}

//Prepare For Segue:
func prepareforSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
var SVC = segue.destinationViewController as! StudyViewController
SVC.StringVar = "Hello"
}

Destination ViewController:

class StudyViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

var StringVar = String()

//intervening code [omitted]

override func viewDidLoad() {
    super.viewDidLoad()
    print("StringVar = ", StringVar) 
    // Do any additional setup after loading the view.
}

The print statement in the viewDidLoad function works fine, but StringVar remains empty. Any ideas? Thanks.

Upvotes: 0

Views: 195

Answers (1)

Dan Beaulieu
Dan Beaulieu

Reputation: 19954

What @michael was saying is that your prepareForSegue needs to use the override keyword like this:

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

Xcode should've corrected to this for you, so make sure you check your spelling. If you don't include the override keyword then you are simply defining a new function named prepareforSegue.

You can download a working example of prepareForSegue in action from my tutorial here:

prepareForSegue project files

Upvotes: 1

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