2014/10/15 下午 10:06:41

iphone Programming Glossary: didsave

http://stackoverflow.com/questions/2131722/coredata-for-iphone-storing-images

by the managedObjectContext and delete files when a movie was deleted You can either register for the willSave or didSave notification each with it's own advantages disadvantages. NSNotificationCenter defaultCenter addObserver self selector @selector..

iPhone memory management (with specific examples/questions)

http://stackoverflow.com/questions/4543895/iphone-memory-management-with-specific-examples-questions

the .m implementation file. To give an example consider a simple Person object which has a name and a boolean property didSave which simply indicates whether the object has been saved to some database or not. Since we don't want to expose this to.. variables public private protected and only public properties Person.h @interface Person NSString name @private BOOL didSave @property nonatomic retain NSString name @end But declare private properties inside the implementation Person.m property..

Objective C Adding a Contact to a specific Group in the iPhone

http://stackoverflow.com/questions/8249010/objective-c-adding-a-contact-to-a-specific-group-in-the-iphone

handle the error appropriately. NSLog @ Unresolved error while adding person to HiBye group @ error exit 1 Fail BOOL didSave ABAddressBookSave addressbook error if didSave Update to handle the error appropriately. NSLog @ Unresolved error while.. error while adding person to HiBye group @ error exit 1 Fail BOOL didSave ABAddressBookSave addressbook error if didSave Update to handle the error appropriately. NSLog @ Unresolved error while saving address book @ error exit 1 Fail Good luck..