How to increase the character spacing in UILabel - ios

Question

I am creating an app in >=iOS6. And I want to change the character spacing in UILabel. I have added the custom font "FUTURABT HEAVY" in my app but the Character are too close to eachother.
I have find the good code here to increase the character spacing. But if i tried to change it than my text became left- align in stead of center.
Please help me with this situation.

Answer 1

You should probably use NSAttributedString with NSKernAttributeName attribute
Here is a small example:
UILabel *label = [[UILabel alloc] initWithFrame:self.view.bounds];
NSString *string = #"Some important text";
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:string];
float spacing = 5.0f;
[attributedString addAttribute:NSKernAttributeName
value:#(spacing)
range:NSMakeRange(0, [string length])];
label.attributedText = attributedString;
[self.view addSubview:label];

Answer 2

Swift extension for this
extension UILabel {
func addCharactersSpacing(spacing:CGFloat, text:String) {
let attributedString = NSMutableAttributedString(string: text)
attributedString.addAttribute(NSAttributedString.Key.kern, value: spacing, range: NSMakeRange(0, text.count-1))
self.attributedText = attributedString
}
}
So you can use it
MyLabel.addCharactersSpacing(5, text: "Some Text")

Answer 3

Swift 4
extension UILabel {
func setCharacterSpacing(characterSpacing: CGFloat = 0.0) {
guard let labelText = text else { return }
let attributedString: NSMutableAttributedString
if let labelAttributedText = attributedText {
attributedString = NSMutableAttributedString(attributedString: labelAttributedText)
} else {
attributedString = NSMutableAttributedString(string: labelText)
}
// Character spacing attribute
attributedString.addAttribute(NSAttributedStringKey.kern, value: characterSpacing, range: NSMakeRange(0, attributedString.length))
attributedText = attributedString
}
}
Swift 3
let label = UILabel()
let stringValue = "Sample text"
let attrString = NSMutableAttributedString(string: stringValue)
attrString.addAttribute(NSKernAttributeName, 2: style, range: NSRange(location: 0, length: stringValue.characters.count))
label.attributedText = attrString

Answer 4

Here the code for Swift 5 with a handy extension :
extension UILabel {
func addCharactersSpacing(spacing: CGFloat, txt: String) {
let attributedString = NSMutableAttributedString(string: txt)
attributedString.addAttribute(NSAttributedString.Key.kern, value: spacing, range: NSRange(location: 0, length: txt.count))
self.attributedText = attributedString
}
}

Answer 5

Swift 4.2 with UILabel extension and #IBInspectable
extension UILabel {
#IBInspectable var letterSpacing: CGFloat {
get {
var range:NSRange = NSMakeRange(0, self.text?.count ?? 0)
let nr = self.attributedText?.attribute(NSAttributedString.Key.kern, at: 0, effectiveRange: &range) as! NSNumber
return CGFloat(truncating: nr)
}
set {
let range:NSRange = NSMakeRange(0, self.text?.count ?? 0)
let attributedString = NSMutableAttributedString(string: self.text ?? "")
attributedString.addAttribute(NSAttributedString.Key.kern, value: newValue, range: range)
self.attributedText = attributedString
}
}
}

Answer 6

NSString *strDigit= #"001";
NSString *strCrushImpact =[NSStringstringWithFormat:#"%d",[strDigit intValue]];
// Set space in between character
float spacing = 3.0f;
NSMutableAttributedString *attributedStrDigit = [[NSMutableAttributedString alloc] initWithString:strWin];
[strCrushImpact addAttribute:NSKernAttributeName value:#(spacing)
range:NSMakeRange(0, [strDigit length])];
label.attributedText = attributedStrDigit;