I am trying to pass values to a new view controller - located within a new storyboard file. However when I do so, the result I get from the NewViewController is always nil.
Below is how I show the view controller within the new storyboard:
// Show create account page with custom transition
var storyboard : UIStoryboard = UIStoryboard(name: StoryboardName, bundle: nil)
var vc : UIViewController = storyboard.instantiateViewControllerWithIdentifier(NewViewController) as UIViewController
I try to send the information here:
// Pass the delegate to the first view controller
let newViewController:NewViewController = NewViewController()
newViewController.createAccountDelegate = self
newViewController.teststring = "hello"
And then present the view controller.
vc.transitioningDelegate = self
vc.modalTransitionStyle = UIModalTransitionStyle.CoverVertical
self.presentViewController(vc, animated: true, completion: nil)
Here is my NewViewController, where I try to receive the values. However end up still being nil.
import UIKit
class NewViewController: UIViewController {
var createAccountDelegate:AccountCreationDelegate!
var teststring:NSString!
override func viewDidLoad() {
super.viewDidLoad()
}
Am I sending the values incorrectly?
If you have a value in one view controller and want to pass it to another, there are two approaches: for passing data forward you should communicate using properties, and for passing data backwards you can either use a delegate or a block.
You are creating a new instance of NewViewController
with this line
let newViewController:NewViewController = NewViewController()
Instead assign variables and delegate to vc
which you have instantiated from StoryBoard
var storyboard : UIStoryboard = UIStoryboard(name: StoryboardName, bundle: nil)
// It is instance of `NewViewController` from storyboard
var vc : NewViewController = storyboard.instantiateViewControllerWithIdentifier(NewViewController) as NewViewController
// Pass delegate and variable to vc which is NewViewController
vc.createAccountDelegate = self
vc.teststring = "hello"
vc.transitioningDelegate = self
vc.modalTransitionStyle = UIModalTransitionStyle.CoverVertical
self.presentViewController(vc, animated: true, completion: nil)
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