iOS 5: Make NSString Category include NSCFConstantString?

Question

I have an NSString category class (NSString+URLEncoding.h). I am running into and unknown selector crash, because the string I am calling the categ

Answer 1

__NSCFConstantString is a subclass of NSString, so any categories on NSString apply to __NSCFConstantString too.

Either you're not linking in your category, or your category doesn't define a URLEncodedString method in its @implementation.