Passing NSManagedObjects Between ViewControllers - Random Bad Access Errors

Question

Is NSManagedObjects between ViewControllers a bad idea? I have an iPad app and I seem to have encountered random malfunctions and sigbart errors.

These NSManageObjects come from CoreData, and it seems to me that sometimes they just lose memory and cause this. I was hoping to simply transfer them from controller to controller so as not to fetch on each view manager.

Answer 1

, . , (), NSManagedObjects VeiwControllers .

, ViewController refcount . .

, , ViewControllers,

@property (nonatomic, retain) NSManagedObject *yourObject;

, , :

self.yourObject = ...;

... :

otherViewController.yourObject = ...;

/ .

Answer 2

, . . , , . NSManagedObjects , , ( , ), .

Answer 3

, NSManagedObject, . - AppDelegate ObjectContext,

[[[UIApplication sharedApplication] delegate] managedObjectContext];

, retain, .