I would like to add "-" between 4 numbers when user is typing in PinNo text field.
For example, 1234 - 5678 - 9932
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May Phyu
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1 Answers
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// try like this
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool
{
var strText: String? = textField.text
if strText == nil {
strText = ""
}
strText = strText?.stringByReplacingOccurrencesOfString("-", withString:"")
if strText!.characters.count > 1 && strText!.characters.count % 4 == 0 && string != "" {
textField.text = "\(textField.text!)-\(string)"
return false
}
return true
}
Satyanarayana
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Error : value of type 'String?' has no member "characters" shows. – May Phyu Jun 07 '16 at 08:33
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No error now. Spelling of "character" is wrong. Whatever thank you. :) – May Phyu Jun 07 '16 at 08:42
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ohh, all the above code typed here only , okay fine i will edit that answer :), anyway is it working for you – Satyanarayana Jun 07 '16 at 08:48
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not working well. When I type , it shows "Optional -\( 123" like that. – May Phyu Jun 07 '16 at 09:18
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do one thing change this line like this textField.text = "\(textField.text)-\(string)" as textField.text = "\(textField.text!)-\(string)" – Satyanarayana Jun 07 '16 at 09:28
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i edited the answer , take code from there , then it will work for u – Satyanarayana Jun 07 '16 at 09:29
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Yes. It's working now. Thank you very much :). One more I want to add is that to remove "-" from beginning. – May Phyu Jun 07 '16 at 09:40
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if strText!.characters.count != 0 { txtPinNo.text = "\(txtPinNo.text!)-\(string)" return false } – May Phyu Jun 07 '16 at 09:41
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for this hyphen(-) is added for every charecter what you are typing – Satyanarayana Jun 07 '16 at 09:44
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so, don't add if strText!.characters.count != 0 { txtPinNo.text = "(txtPinNo.text!)-(string)" return false } – Satyanarayana Jun 07 '16 at 09:46
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for that i extended that condition with strText!.characters.count > 1 && so no issue, so that problem wont come now – Satyanarayana Jun 07 '16 at 09:48
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once check the answer – Satyanarayana Jun 07 '16 at 09:49
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It is working well now. Thanks a lot to you. :) – May Phyu Jun 07 '16 at 10:03
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for swift 3 use `strText?.replacingOccurrences(of: "-", with: "")` instead of `strText?.stringByReplacingOccurrencesOfString("-", withString:"")` – Amir Shabani Jun 06 '17 at 08:21