UITextView – can't set underline or strikethrough attributes on text?

Question

I\'m getting runtime failures whenever I try to set underline or strikethrough attributes on the attributedText of a UITextView. Other properties, like font and background c

Answer 1

Your underline style is invalid. Change this line:

let underlineAttribute = 
    [NSAttributedStringKey.underlineStyle: NSUnderlineStyle.styleSingle]

to this:

let underlineAttribute = 
    [NSAttributedStringKey.underlineStyle: NSUnderlineStyle.styleSingle.rawValue]

Result: