How to move UITextFeild with keyboard in order to avoid blocking [SWIFT 5+ ]

Question

I know that there are several questions on this topic, but i have not been able to find any on [SWIFT 5.0] or more, and would really appreciate your help.

I have a UITextFeild at the bottom of the screen which gets hidden every time the user clicks on it. Is there a recent method on which i can solve this hiding issue, by either the textFeild following the keyboard to the top or a sample field appearing on top of the keyboard. Any help would be greatly appreciated, thank you!

Answer 1

You can use the following code:

First, add these two lines of code in your controller viewDidLoad() method:

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillShow), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)

Second, add these two methods inside your controller:

@objc func keyboardWillShow(notification: NSNotification) {
  
    if yourTextfield.isEditing == true
    {
        if let keyboardSize = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
            self.view.frame.origin.y -= keyboardSize.height
        }
    }
}

@objc func keyboardWillHide(notification: NSNotification) {
    if self.view.frame.origin.y != 0 {
        self.view.frame.origin.y = 64
    }
}

Enjoy :).

Answer 2

If you use AutoLayout you may try Keyboard and KeyboardLayoutGuide from my collection of handy Swift extensions and classes called SwiftToolkit

Add this code to your controller viewDidLoad() method:

let keyboardGuide = KeyboardLayoutGuide()
view.addLayoutGuide(keyboardGuide)

/** 
    Your textField vertical position constraint 
    must have lower priority than this constraint
*/
keyboardGuide.topAnchor.constraint(greaterThanOrEqualTo: textField.bottomAnchor, constant: 8).isActive = true

When the keyboard appears it will push your UITextField up like this: