iphone - passing NSManagedObjects between ViewControllers - random bad access errors -


is passing nsmanagedobjects between viewcontrollers bad idea? have ipad app , seem run random bad access crashes , sigbart errors.

these nsmanageobjects coming coredata , wonder if drop out of memory , cause this. hoping pass them controller controller avoid doing fetch on every viewcontroller.

sounds it's matter of bad object memory allocation practices. long you're not multithreading app , there 1 managedobjectcontext (typical), can pass these nsmanagedobjects between veiwcontrollers no problem.

what's happening you're passing reference 1 viewcontroller without incrementing it's refcount retain message. can dicey.

what i'd recommend having retain property on viewcontrollers, like

@property (nonatomic, retain) nsmanagedobject *yourobject;

then, when managed object, keep this:

self.yourobject = ...;

... , when want pass view controller:

otherviewcontroller.yourobject = ...;

and take care of setting retain/release you.


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