NSNumberFormatter to format US Telephone Numbers

Question

I\'m trying to convert a string of numbers, entered by the user, into a sexy string like Phone.app on the iPhone. Here is the code I\'m using, which doesn\'t work (no specia

Answer 1

One thing that is never mentioned here is that a NSNumberFormatter will always convert the value into, well, a NSNumber. If you want a more generalized NSFormatter, subclass NSFormatter and implement the methods mentioned in the Creating a Custom Formatter.