Swift 3 how to dismiss UIViewController after UIAlertController action

Question

I have an alert controller and want to close the view controller after pressing OK but can't figure out how. self.dismiss(animated: true) only closes the alert controller itself. Here is my code.

let alertController: UIAlertController = UIAlertController(title: "Password updatd", message: "Your password has been changed successfully", preferredStyle: .alert)

let okAction: UIAlertAction = UIAlertAction(title: "OK", style: .default) { action -> Void in }

alertController.addAction(okAction)

self.present(alertController, animated: true, completion: nil)

I tried this which only removed the current view controller but not back to the root view controller.

let okAction: UIAlertAction = UIAlertAction(title: "OK", style: .default) { action -> Void in
self.navigationController?.popToRootViewController(animated: true)}

This gave me a warning expression of type UIViewController is unused.

Denis · Accepted Answer · 2017-03-22T20:30:34.503

3

Navigation Controller:

Previous Controller

self.navigationController?.popViewController(animated: true)

Root Controller

self.navigationController?.popToRootViewController(animated: true)

Modal View Controller:

self.dismiss(animated: true, completion: nil)

edited Mar 22 '17 at 20:30

answered Mar 22 '17 at 20:06

Denis

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I don't have a storyboard. – markhorrocks Mar 22 '17 at 20:11
Ok, then you are using Xib's? – Denis Mar 22 '17 at 20:13
How do you present another ViewController? I'm not really advanced in programmatically creating everything but I would like to learn – Denis Mar 22 '17 at 20:19
1

See my Edit Above – Denis Mar 22 '17 at 20:29
1

Try this as well for the most recent error you received http://stackoverflow.com/questions/37843049/xcode-8-swift-3-expression-of-type-uiviewcontroller-is-unused-warning – Denis Mar 22 '17 at 21:09

Swift 3 how to dismiss UIViewController after UIAlertController action

1 Answers1