How do you limit UILabel characters in swift?

Question

I'm trying to set a limit in my label to 10 characters, I'm a complete newbie to programming in general so its my 3rd month so far... anyway thanks in advance :-)

Since you've already set a limit on yourself how can you expect to set one on a `UILabel`? — l'L'l, Oct 05 '15 at 22:14
I think the question is pretty clear and don't need code just to limit characters on one label... It's not like I'm asking how to write a complicated function and then the code be necessary — Krazyowl, Oct 05 '15 at 22:18

Juanes30 · Answer 1 · 2019-12-04T19:09:58.950

You can also create a String extension and reuse it with any text string.. You can do it in the following way:

create the extension:

extension String {
   func maxLength(length: Int) -> String {
       var str = self
       let nsString = str as NSString
       if nsString.length >= length {
           str = nsString.substring(with:
               NSRange(
                location: 0,
                length: nsString.length > length ? length : nsString.length)
           )
       }
       return  str
   }
}

you can use the extension in the following way:

label.text = "This is a Very Long Label".maxLength(length: 10)

the previous code was tested in Swift 5.0

Christian Abella · Accepted Answer · 2018-02-15T11:10:48.293

9

If you want to limit the UILabel to just 10 characters then you just have to assign it with a text with length of 10. You can use NSString and NSRange to extract the text you need.

let str = "This is a Very Long Label"
let nsString = str as NSString
if nsString.length >= 10
{
  label.text = nsString.substringWithRange(NSRange(location: 0, length: nsString.length > 10 ? 10 : nsString.length))
}

edited Feb 15 '18 at 11:10

answered Oct 05 '15 at 23:01

Christian Abella

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2

Of course this code will crash if `str` has less than 10 characters in it to start with. – rmaddy Oct 05 '15 at 23:11

score 1 · Answer 3 · answered Sep 28 '21 at 10:15

Check out this answer: https://stackoverflow.com/a/39677331/2548473

My version is (Swift 5+):

extension String {
    func shorted(to symbols: Int) -> String {
        guard self.count > symbols else {
            return self
        }
        return self.prefix(symbols) + " ..."
    }
}

score -2 · Answer 4 · answered Aug 06 '17 at 10:48

SWIFT 3

        let str = GL_GetNews[indexPath.row]["n_body"].stringValue
        let nsString = str as NSString
        if nsString.length > 0
        {
             cell.newsDescription.text = nsString.substring(with: NSRange(location: 0, length: nsString.length > 200 ? 200 : nsString.length))
        }

How do you limit UILabel characters in swift?

4 Answers4