Add '+' sign using Flex NumberFormatter

I want to format a number with the '+' or '-' sign attached to it. When i tried with the useNegativeSign=true, it ga开发者_运维知识库ve only '-' sign. I want like this : +13%, -12%, ...

Thanks in Advance, Cheers,PK

You probably want to write your own Formatter for this, to prepend the symbol and append the percent sign.

Creating a formatter