NSKeyedUnarchiver with custom Objects

Question

I have a question about NSKeyedUnarchiver, NSMutableArray and self-created classes. The data is stored by NSKeyedArchiver to user defaults. When the data load into the user defaults will be printed to the console of the data stream. I want to unpack the data into an array, the array will be empty. Maybe someone of you knows how I save the array or the array load.

Thank you.

Greetings, Schumi

Answer 1

You should go through this documentation first. But basically, To enable archiving on custom class objects you will have to adopt the NSCoding protocol and implement initWithCoder: and encodeWithCoder: methods.