UIView container disappears when I move it's Y origin down - ios

Question

I have UIView which is container for button "send" and textView.
When I starting editing I have keyboard on the screen and I change Y origin of the container to move it higher and not be covered by keyboard.
When I finish editing I got keyboard hidden and my container(UIView with button and textView) just disappears! But if I turn simulator right or left this became visible again.
Here is the animation code that move my container up and down:
func textViewDidChange(textView: UITextView) {
self.messagePromptLabel.hidden = messageTextView.hasText() ? true : false
}
func textViewDidEndEditing(textView: UITextView) {
if !self.messageTextView.hasText() {
self.messagePromptLabel.hidden = false
}
}
func didTapScrollView(){
self.view.endEditing(true)
}
func keyboardWasShown(notification: NSNotification) {
let dict: NSDictionary = notification.userInfo!
let keyboardSize: NSValue = dict.valueForKey(UIKeyboardFrameEndUserInfoKey) as! NSValue
let frameKeyboardSize: CGRect = keyboardSize.CGRectValue()
UIView.animateWithDuration(0.3, animations: { () -> Void in
self.chatScrollView.frame.origin.y -= frameKeyboardSize.height
self.messageView.frame.origin.y -= frameKeyboardSize.height
}) { (finished: Bool) -> Void in
}
}
func keyboardWillHide(notification: NSNotification) {
UIView.animateWithDuration(0.3, animations: { () -> Void in
self.chatScrollView.frame.origin.y = self.chatScrollViewOriginY!
self.messageView.frame.origin.y = self.messageTextViewOriginY!
}) { (finished: Bool) -> Void in
}
}
Some additional code
This code may help find out something.
#IBOutlet weak var messageTextView: UITextView!
#IBOutlet weak var chatScrollView: UIScrollView!
#IBOutlet weak var messagePromptLabel: UILabel!
#IBOutlet weak var messageView: UIView!
var chatScrollViewOriginY: CGFloat?
var messageTextViewOriginY: CGFloat?
var messageArray = [String]()
var senderArray = [String]()
var currentUserImage: UIImage?
var recipientImage: UIImage?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
messageTextView.addSubview(messagePromptLabel)
self.title = recipientNickname
chatScrollViewOriginY = self.chatScrollView.frame.origin.y
messageTextViewOriginY = self.messageTextView.frame.origin.y
print(" messageTextViewOriginY \(messageTextViewOriginY)")
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWasShown:", name: UIKeyboardDidShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillHide:", name: UIKeyboardWillHideNotification, object: nil)
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: "didTapScrollView")
tapGestureRecognizer.numberOfTouchesRequired = 1
chatScrollView.addGestureRecognizer(tapGestureRecognizer)
chatScrollView.backgroundColor = UIColor.redColor()
}
func textViewDidChange(textView: UITextView) {
self.messagePromptLabel.hidden = messageTextView.hasText() ? true : false
}
func textViewDidEndEditing(textView: UITextView) {
if !self.messageTextView.hasText() {
self.messagePromptLabel.hidden = false
}
}
func didTapScrollView(){
self.view.endEditing(true)
}
Question:
What make my UIView container invisible all the time when I hidding keyboard and make it visible when I turn my phone left or right?

Answer 1

You need to add this code in your send button action:
self.view.endEditing(true)