Save / Write NSMutableArray of objects to disk?

Question

Initially I thought this was going to work, but now I understand it won\'t because artistCollection is an NSMutableArray of \"Artist\" objects.

@interface Ar         


        

Answer 1

Take a look at NSKeyedArchiver. Briefly :

NSData* artistData = [NSKeyedArchiver archivedDataWithRootObject:artistCollection];
[artistData writeToFile: @"/Users/Fgx/Desktop/stuff" atomically:YES];

You'll need to implement encodeWithCoder: on your Artist class - see Apple's docs

Unarchiving (see NSKeyedUnarchiver) is left as an exercise for the reader :)