Keyboard handler

Keyboard_handler

@objc func adjustForKeyboard(notification: Notification) {
        guard let keyboardValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
        
        let keyboardScreenEndFrame = keyboardValue.cgRectValue
        let keyboardViewEndFrame = view.convert(keyboardScreenEndFrame, from: view.window)
        
        if notification.name == UIResponder.keyboardWillHideNotification {
            scrollView.contentInset.bottom = self.logInButton.frame.height
        } else {
            
            let buttonPosition = self.logInButton.frame.origin.y + self.logInButton.frame.height
            
            if buttonPosition > keyboardViewEndFrame.origin.y {
                let inset = buttonPosition - keyboardViewEndFrame.origin.y
                scrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: inset, right: 0)
            }
        }
    }