How do you custom format the textfield?
I know NSNumberFormatter allows you some flexibility in customising the textfield but if you need a more specific formatter, how you would do it please?

For example:

Timecode "03:50:02:25"?

or

Concatenation of strings "6,264 feet"? 

Thanks.
How do you custom format the textfield?
===

I know NSNumberFormatter allows you some flexibility in customising the textfield but if you need a more specific formatter, how you would do it please?

For example:

Timecode "03:50:02:25"?

or

Concatenation of strings "6,264 feet"? 

Thanks.