AlertController - conflict with UIViewController - ios

Question

I'm working on an iOS project using Swift. I have simple login/register/lost password view controllers for security using Firebase. The issue is with the Reset Password View Controller. If a user clicks on it, they are sent (presented modally) to lost password view controller.
The problem with the current code is that when Firebase finds the entered email and sends a password reset email, I present Alert controller for confirmation for the user. The issue is that when I click "ok" on the Alert Controller, I want the Reset Password View Controller to be dismissed as well. Not sure why it's not working now. I do get emails, but when I click the OK button on the Alert controller, it only dismisses the Alert controller and the self.dismissViewControllerAnimated(true, completion: nil) doesn't seem to dismiss the modally presented Reset Password View Controller.
I tried with self.dismissViewController(true, completion: nil) as well as self.performSegueWithIdentifier("goToLoginVC", sender: nil). Non seems to work and I can't figure why.
Here's the function itself:
#IBAction func resetPasswordPressed(sender: AnyObject) {
let email = emailTextField.text
if email != "" {
DataService.ds.REF_BASE.resetPasswordForUser(email, withCompletionBlock: { error in
if error != nil {
// Error - Unidentified Email
showAlert(title: "Unidentified Email Address", msg: "Please, re-enter the email you have registered with.", actionButton: "OK", viewController: self)
} else {
// Success - Sent recovery email
let alertController = UIAlertController(title: "Email Sent", message: "An email has been sent. Please, check your email now.", preferredStyle: UIAlertControllerStyle.Alert)
let okAction = UIAlertAction(title: "OK", style: .Default, handler: nil)
alertController.addAction(okAction)
self.presentViewController(alertController, animated: true, completion: nil)
self.dismissViewControllerAnimated(true, completion: nil)
}
})
} else {
showAlert(title: "Error!", msg: "Email is required in order to reset your password. Please, enter your email. ", actionButton: "OK", viewController: self)
}
}

Answer 1

Do it this way:
alertController.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle. Default, handler: { action in
//Add your logic here
}))

Answer 2

Someone answered and provided the solution but removed his answer after it. So, this is what he said and it worked well (so credit goes to that person!):
#IBAction func resetPasswordPressed(sender: AnyObject) {
let email = emailTextField.text
if email != "" {
DataService.ds.REF_BASE.resetPasswordForUser(email, withCompletionBlock: { error in
if error != nil {
// Error - Unidentified Email
showAlert(title: "Unidentified Email Address", msg: "Please, re-enter the email you have registered with.", actionButton: "OK", viewController: self)
} else {
// Success - Sent recovery email
let alertController = UIAlertController(title: "Email Sent", message: "An email has been sent. Please, check your email now.", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: { action in
self.dismissViewControllerAnimated(true, completion: nil)
}))
self.presentViewController(alertController, animated: true, completion: nil)
}
})
} else {
showAlert(title: "Error!", msg: "Email is required in order to reset your password. Please, enter your email. ", actionButton: "OK", viewController: self)
}
}