allowing backspace in textview in swift 2

Question

I want to restrict my textview to 50 characters. I did it, but I am unable to press backspace after 50 characters. How to solve the problem ? My code is as below (Note: 'txtv' is my textview name)

func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {

        if (self.txtv.text.characters.count) >= 50 {
         return false
        }
        return true
    }

Check here: http://stackoverflow.com/questions/433337/set-the-maximum-character-length-of-a-uitextfield — Matthew S., Feb 01 '16 at 07:56

score 1 · Accepted Answer · answered Feb 01 '16 at 07:56

1

if users cutting text, or deleting strings longer than a single character (ie if they select and then hit backspace), do like this

func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
return textView.text.characters.count + (text.characters.count - range.length) <= 50
}

answered Feb 01 '16 at 07:56

Anbu.Karthik

82,064
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Thanks @Anbu.Karthik.. It really helped. Thanx a lot – Gokulraj Rajan Feb 01 '16 at 08:04

score 0 · Answer 2 · answered Feb 01 '16 at 09:03

0

You haven't check incoming text, you should do that before before limiting text input.

if text.characters.count == 0 { // if backspace
    return true
}

if (self.txtv.text.characters.count) >= 50 {
     return false
    }
    return true
}

answered Feb 01 '16 at 09:03

RJE

781
6
14

allowing backspace in textview in swift 2

2 Answers2