How do I change the letter spacing in a UILabel?

Question

I want to change the spacing between digits in a UIKit UILabel so that it is equal.

With standard spacing, the label looks like this:

I'd like it to look like this:

How can this be achieved?

Answer 1

You can use the NSKernAttributeName attribute on an attributed string:

UILabel *label = [UILabel new];  NSMutableAttributedString *text = [[NSMutableAttributedString alloc]                                     initWithString:@"127"];  // The value paramenter defines your spacing amount, and range is  // the range of characters in your string the spacing will apply to.  // Here we want it to apply to the whole string so we take it from 0 to text.length. [text addAttribute:NSKernAttributeName               value:@-0.5               range:NSMakeRange(0, text.length)];  [label setAttributedText:text]; 

Answer 2

The easiest way is to create a custom UILabel class and set the letter spacing from Storyboard.

open class CustomLabel : UILabel {     @IBInspectable open var characterSpacing:CGFloat = 1 {         didSet {             let attributedString = NSMutableAttributedString(string: self.text!)             attributedString.addAttribute(NSKernAttributeName, value: self.characterSpacing, range: NSRange(location: 0, length: attributedString.length))             self.attributedText = attributedString         }      } } 

Answer 3

On swift implementation looks like

let text = "TIPS, ARTICLES & BEST OFFERS"
label.attributedText = NSAttributedString(string: text, attributes: [.kern: 3.12])