Move up view when textView show keyboard not working - ios

Question

i have an one textView and textfield in storyboard. i want to move up scroll view when textfield or textView show keyboard. every thing work fine for UITextField but for textView thats not working. there is my code for moving up view:
func keyboardWillShow(notification: NSNotification) {
if let endFrame = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {
var keyboardHeight = view.bounds.height - endFrame.origin.y
if #available(iOS 11, *) {
if keyboardHeight > 0 {
keyboardHeight = keyboardHeight - view.safeAreaInsets.bottom
var contentInset:UIEdgeInsets = self.scrollView.contentInset
contentInset.bottom = keyboardHeight
viewBottom.constant = keyboardHeight
self.scrollView.contentInset = contentInset
}
}
else {
let keyboardSize = (notification.userInfo![UIKeyboardFrameEndUserInfoKey] as! NSValue).cgRectValue.size
var contentInset:UIEdgeInsets = self.scrollView.contentInset
contentInset.bottom = (keyboardSize.height)
self.scrollView.contentInset = contentInset
}
view.layoutIfNeeded()
}
}
func keyboardWillHide(notification: NSNotification) {
var contentInset:UIEdgeInsets = self.scrollView.contentInset
contentInset.bottom = 0
self.scrollView.contentInset = contentInset
}
what is difference between textfield and textView for showing keyboard?
when i tap textview that's method called and scroll view content inset same as when tap on textfield but view don't move up.
how can solve this problem?

Answer 1

class matchViewController: UIViewController,UITextViewDelegate {
var activeTextview: UITextView?
#IBOutlet weak var yourTextview: UITextView!
#IBOutlet weak var scrollView: UIScrollView!
override func viewDidLoad() {
super.viewDidLoad()
yourTextview.delegate=self
NotificationCenter.default.addObserver(self, selector: #selector(yourViewController.keyboardWillShow(_:)), name:NSNotification.Name.UIKeyboardWillShow, object: self.view.window)
NotificationCenter.default.addObserver(self, selector: #selector(yourViewController.keyboardWillHide(_:)), name:NSNotification.Name.UIKeyboardWillHide, object: self.view.window)
}
#objc func keyboardWillShow(_ sender: Notification) {
var info: [AnyHashable : Any] = sender.userInfo!
let kbSize: CGSize = ((info[UIKeyboardFrameEndUserInfoKey]! as AnyObject).cgRectValue.size)
let contentInsets: UIEdgeInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0)
scrollView.contentInset = contentInsets
scrollView.scrollIndicatorInsets = contentInsets
var aRect: CGRect = self.view.frame
aRect.size.height -= kbSize.height
if let activeTextview=activeTextview{
self.scrollView.scrollRectToVisible((activeTextview.frame), animated: true)
}
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?){
view.endEditing(true)
super.touchesBegan(touches, with: event)
}
#objc func keyboardWillHide(_ sender: Notification) {
let userInfo: [AnyHashable: Any] = sender.userInfo!
let keyboardSize: CGSize = (userInfo[UIKeyboardFrameBeginUserInfoKey]! as AnyObject).cgRectValue.size
self.scrollView.frame.origin.y += keyboardSize.height
}
override func viewDidDisappear(_ animated: Bool) {
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillShow, object: self.view.window)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillHide, object: self.view.window)
}
func textViewDidBeginEditing(_ textView: UITextView) {
activeTextview=textView
}
func textViewDidEndEditing(_ textView: UITextView){
activeTextview=nil
}
}