NSMutableAttributedString as UIAlertAction's title - Swift

问题

Is it possible to set a NSMutableAttributedString as AlertAction's title? My aim is to visualize a math expression with a good design in my UIAlertAction's title.

let action = UIAlertAction(title: myNSMutableAttributedString, style: UIAlertActionStyle.default) {(result : UIAlertAction) -> Void in

}

Thanks in advance for the help.

回答1:

It's not possible to use an NSAttributedString for a UIAlertAction's title without accessing private APIs, as the method for setting the attributedTitle to an attributed string does not work here (see this question for details on that).

I would create a custom class or use an alert library for this.

来源：https://stackoverflow.com/questions/46022379/nsmutableattributedstring-as-uialertactions-title-swift