JSONRepresentation for NSMutableDictionary

问题

I want to call the JSONRepresentation method on an NSMutableDictionary object. I'm calling it using [userDict JSONRepresentation];, but I am getting the following warning:

NSMutableDictionary may not responsd to '-JSONRepresentation'

Could anyone tell me how to I can properly call the JSONRepresentation method on an object of the NSMutableDictionary type?

Thanks in advance.

回答1:

The JSONRepresentation method comes from json-framework. Include that framework in your project and import the correct headers, and you should be good to go.

来源：https://stackoverflow.com/questions/7143863/jsonrepresentation-for-nsmutabledictionary