How can I decode an object when original class is not available?

Question

I have an iOS 7 application that saves a custom object to app\'s iCloud Docs folder as a file. For this, I make use of NSCoding protocol.

@interface Person : NSO         


        

Answer 1

I think you could resolve it as follow:

@implementation PersonOldVersion

+ (void)load
{
    [NSKeyedUnarchiver setClass:[PersonOldVersion class] forClassName:@"Person"];
}