How can I detect backspace in UITextView in Swift.
I have seen many solutions regarding UITextField but could not find any solution with regard to UITextView
Asked
Active
Viewed 3,763 times
0
-
It's the same as `UITextField`, whatever you do in `UITextField` to detect it you can also apply to `UITextView` – Tj3n Feb 07 '18 at 11:03
1 Answers
0
UITextViewDelegate method will help you to detect backspace
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
if text == "" && range.length > 0 { //Backspace
}
return true
}
Priya
- 735
- 5
- 10
-
This detects deletion, it does not really detect backspace. You can't be sure this operation is not done by selection and cut. – Sulthan Feb 07 '18 at 11:11
-
that is not correct at all; it is also `1` when the user _replaces_ a character in the 1 character long selected text, without even thinking about tapping the _backspace_ button (like e.g. select 1 character and replace it with a different one); and the user also can tap the _backspace_ button to delete more than 1 character (I can delete e.g. 5 at the same time and this concept will fail)... so altogether that is a wrong solution for the original problem in general – and it does not detect any deletion at all for sure. – holex Feb 07 '18 at 11:19