Adding underline to UILabel attributed string from the storyboard fails

Question

1. From the storyboard I select the UILabel in question
2. Then in Attribute Inspector > Label > [I choose] Attributed
3. Also in Attribute Inspector > Label > Te

Answer 1

You can make text underline from storyboard like this. But when you change the text programatically it will override and underline will gone. So if you have to change the text on runtime. Do this.

For Swift 3

 let text = myLabel.text
 let textRange = NSMakeRange(0, (text?.characters.count)!)
 let attributedText = NSMutableAttributedString(string: text!)
 attributedText.addAttribute(NSUnderlineStyleAttributeName , value: NSUnderlineStyle.styleSingle.rawValue, range: textRange)
 myLabel.attributedText = attributedText

For Swift 4

  let text = myLabel.text
  let textRange = NSRange(location: 0, length: (text?.count)!)
  let attributedText = NSMutableAttributedString(string: text!)
  attributedText.addAttribute(NSAttributedStringKey.underlineStyle, value: NSUnderlineStyle.styleSingle.rawValue, range: textRange)
  myLabel.attributedText = attributedText