(Swift) Moving views out of the way for keyboard? - ios

Question

I am having a weird problem with moving my views to make room for an incoming keyboard. Basically, in my app, there is a button that performs a segue which pushes a new instance of a view controller that is embedded inside of a navigation controller modally. Within this first instance, my keyboard code works perfectly. The code is as follows:
func keyboardWillShow(sender: NSNotification) {
if !keyBoard {
self.view.frame.origin.y -= 200
}
keyBoard = true
}
func keyboardWillHide(sender: NSNotification) {
if keyBoard {
self.view.frame.origin.y += 200
}
keyBoard = false
}
with the following in viewDidLoad:
NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillShow:"), name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillHide:"), name: UIKeyboardWillHideNotification, object: nil)
I also added a tapGestureRecognizer so that when the keyboard is showing and the user taps anywhere on the screen, the keyboard closes:
let tapped = UITapGestureRecognizer(target: self, action: "closeKeyboard")
tapped.numberOfTapsRequired = 1
self.view.addGestureRecognizer(tapped)
and
func closeKeyboard() {
self.view.endEditing(true)
}
So in the first instance, this code works perfectly. However, after I go back, calling self.dismissViewControllerAnimated, and, once I am on the original screen, click the button that calls performSegue again and push a new instance of this same view controller, the code breaks and the view no longer moves out of the way of the keyboard but just sort of stutters and bounces a little. I have no idea why this is happening and any help would be very much appreciated. Thanks!

Answer 1

Try putting a breakpoint on keyboardWillShow and keyboardWillHide, and tell me if both the methods are called when you go back to the second ViewController.