Add NSUnderlineStyle.PatternDash to NSAttributedString in Swift?

Question

I\'m trying to add an underline to some text in my Swift app. This is the code I have currently:

let text = NSMutableAttributedString(string: self.currentHome.na         


        

Answer 1

Here's a full example of creating a UILabel with underlined text:

Swift 5:

let homeLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 30))

let text = NSMutableAttributedString(string: "hello, world!")

let attrs = [NSAttributedString.Key.underlineStyle: NSUnderlineStyle.patternDash.rawValue | NSUnderlineStyle.single.rawValue]

text.addAttributes(attrs, range: NSRange(location: 0, length: text.length))

homeLabel.attributedText = text

---

Swift 4:

let homeLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 30))

let text = NSMutableAttributedString(string: "hello, world!")

let attrs = [NSAttributedStringKey.underlineStyle: NSUnderlineStyle.patternDash.rawValue | NSUnderlineStyle.styleSingle.rawValue]

text.addAttributes(attrs, range: NSRange(location: 0, length: text.length))

homeLabel.attributedText = text

---

Swift 2:

Swift allows you to pass an Int to a method that takes an NSNumber, so you can make this a little cleaner by removing the conversion to NSNumber:

text.addAttribute(NSUnderlineStyleAttributeName, value: NSUnderlineStyle.StyleDouble.rawValue, range: NSMakeRange(0, text.length))

Note: This answer previously used toRaw() as used in the original question, but that is now incorrect as toRaw() has been replaced by the property rawValue as of Xcode 6.1.