Moving content behind keyboard doesn't work, Swift - swift

Question

In view controller I have UIImageView and multiple uitextfields. I'm using the following code, based on Apple documentation, to move the scrollView up when a keyboard notification is called, to push up the hidden text fields. However the when the keyboard appears the view does move up.
Am I missing something here?
class NewViewController: UIViewController, UITextFieldDelegate {
#IBOutlet weak var scrollView: UIScrollView!
var activeTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
scrollView.contentSize.height = 1000
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func registerForKeyboardNotifications() {
let notificationCenter = NSNotificationCenter.defaultCenter()
notificationCenter.addObserver(self, selector: "keyboardWillBeShown:", name: UIKeyboardWillShowNotification, object: nil)
notificationCenter.addObserver(self, selector: "keyboardWillBeHidden:", name: UIKeyboardWillHideNotification, object: nil)
}
func keyboardWillBeShown(sender: NSNotification) {
let info: NSDictionary = sender.userInfo!
let value: NSValue = info.valueForKey(UIKeyboardFrameBeginUserInfoKey) as! NSValue
let keyboardSize: CGSize = value.CGRectValue().size
let contentInsets: UIEdgeInsets = UIEdgeInsetsMake(self.scrollView.contentInset.top, 0.0, keyboardSize.height, 0.0)
scrollView.contentInset = contentInsets
scrollView.scrollIndicatorInsets = contentInsets
var aRect: CGRect = self.view.frame
aRect.size.height -= keyboardSize.height
print(aRect)
let activeTextFieldRect: CGRect? = activeTextField?.frame
let activeTextFieldOrigin: CGPoint? = activeTextFieldRect?.origin
if (!CGRectContainsPoint(aRect, activeTextFieldOrigin!)) {
scrollView.scrollRectToVisible(activeTextFieldRect!, animated:true)
}
}
func keyboardWillBeHidden(sender: NSNotification) {
let contentInsets: UIEdgeInsets = UIEdgeInsetsZero
scrollView.contentInset = contentInsets
scrollView.scrollIndicatorInsets = contentInsets
}
func textFieldDidBeginEditing(textField: UITextField) {
activeTextField = textField
}
func textFieldDidEndEditing(textField: UITextField) {
activeTextField = nil
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
self.registerForKeyboardNotifications()
}
override func viewDidDisappear(animated: Bool) {
super.viewWillDisappear(animated)
NSNotificationCenter.defaultCenter().removeObserver(self)
}

Answer 1

Try this code and set "moveValue" for your situation.
Remember to extends UITextFieldDelegate
func textFieldDidBeginEditing(textField: UITextField)
{
self.animateViewMoving(true, moveValue: 85)
}
func textFieldDidEndEditing(textField: UITextField)
{
self.animateViewMoving(false, moveValue: 85)
}
func animateViewMoving (up:Bool, moveValue :CGFloat)
{
let durataMovimento:NSTimeInterval = 0.3
let movimento:CGFloat = ( up ? -moveValue : moveValue)
UIView.beginAnimations( "animateView", context: nil)
UIView.setAnimationBeginsFromCurrentState(true)
UIView.setAnimationDuration(durataMovimento )
self.view.frame = CGRectOffset(self.view.frame, 0, movimento)
UIView.commitAnimations()
}