is there is any notification after update or changes in contact Address Book in iphone
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103answers:
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A:
Use ABAddressBookRegisterExternalChangeCallback to listen to updates in the Address Book.
You may also listen to the @"ABCDataBaseChangedExternallyNotification" notification, or even deeper, the "__ABDataBaseChangedByOtherProcessNotification" Darwin notification, but these are all undocumented. Don't rely on them. ABAddressBookRegisterExternalChangeCallback is perfectly fine.
KennyTM
2010-03-02 10:42:30