How to move StatView programmatically when keyboard shows

Question

I have a login page which has two textviews and a button in a stackView I'm trying to move the stackview when the keyboard shows and also disappears as I want to know how to do this programmatically

score -1 · Answer 1 · answered Mar 11 '20 at 10:27

-1

iOS sends 2 notifications when keyboard will show/hide

UIKeyboardWillShow

UIKeyboardWillHide

What you can do, is observe those notifications, and move the frame of your stackView such as

@objc func keyboardWillShow() {
    if stackView.frame.origin.y == 0 {
      stackView.frame.origin.y -= 200
   }
}

@objc func keyboardWillHide() {
     if stackView.frame.origin.y != 0 {
        stackView.frame.origin.y = 0
      }
 }

And here is how to observe those notification. (use this code in your viewDidLoad function)

NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: Notification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: Notification.Name.UIKeyboardWillHide, object: nil)

answered Mar 11 '20 at 10:27

Alexandre Odet

372
2
13

I added that code but get this error, Type 'Notification.Name' (aka 'NSNotification.Name') has no member 'UIResponder' – farooq Mar 11 '20 at 11:36
Notification name is UIViewController.keyboardWillShow and UIViewController.keyboardWillHide. Can you try ? – Alexandre Odet Mar 11 '20 at 12:35
That works, but now its saying Use of unresolved identifier 'stackView' it won't let me access the stackView when I'm using the if statement – farooq Mar 11 '20 at 12:52
Remplace "stackView" with the name of your actual stack view... – Alexandre Odet Mar 12 '20 at 13:24

score -1 · Answer 2 · answered Mar 11 '20 at 12:10

Swift 4.2

override func viewDidLoad() {
    super.viewDidLoad()   
    NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: UIWindow.keyboardWillShowNotification, object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide), name: UIWindow.keyboardWillHideNotification, object: nil)
}

   @objc func keyboardWillShow(notification: NSNotification) {
         print("keyboardWillShow")
    }

    @objc func keyboardWillHide(notification: NSNotification){
         print("keyboardWillHide")
    }

If still got any error check below link:

LINK FOR KEYBOARD HIDE/SHOW

How to move StatView programmatically when keyboard shows

2 Answers2