Make custom class of NSObject serializable

Question

Hi

I want a custom class based on NSObject to be serializable. I have read this (http://stackoverflow.com/questions/2182115/make-a-custom-class-serializable-in-objective-c-iphone) but want to ask some additional Qs.

1) Does NSObject implement NSCoder?

2) I also want to ask if I can serialize an array of some objects of this custom class that I want to be serializable. Does this require some special init?

3) I know that I should implement initWithCoder and encodeWithCoder. Is it the variables in my custom object class that I should Encode/Decode there?

Answer 1

• NSObject doesn't adopt the protocol NSCoding. NSCoder is a class, and NSObject is the class from which all the other Cocoa classes are derived.
• Your class doesn't need to do anything special, in that case; If the array is an NSArray, or an NSMutableArray, then the array will take care of the objects it contains.
• Yes. For more details see Archives and Serializations Programming Guide: Introduction.