AddressBook synchronization in iOS

Question

Is there any way in iOS to get notification about address book changes since the last time applications was opened.

The application stores address book in internal database and I don't want to perform full sync each time it activated.

Thanks in advance.

Small addition to clarify the question: I use ABAddressBookRegisterExternalChangeCallback to observe changes when application suspended to background, but from what I know, this method can't work if application was closed completely and reopened(for example: after phone restart or closed from task list).

Subdominant

Hello, did you find any solution for sync problem? – Lorielorien

Answer 1

Maybe you're looking for this:

ABAddressBook Reference - ABAddressBookRegisterExternalChangeCallback

You should register that notification!

Tell me if worked or if you need any help

Mário

Fertile

This will work only while application is running(or suspended in bg) and registered to this callback. I want to get notification even if application was closed completely. – Subdominant

I was searching for a creation date but I think that doesn't exist. In my opinion the best solution is to revert your data each time that the user starts the app and register a notification if the Address Book was changed while the app is running. More info here: developer.apple.com/library/ios/#DOCUMENTATION/AddressBook/… – Betthel

Yeap, I looked for it too, but thought maybe I missed something. Full sync could be painful if iPhone contains 10k addressbook entries. – Subdominant

I will save the last sync time.and when open my app,I will check the sync time and the record last modified time ,so I will know after my last sync,which record has been modified. hope this help. – Entebbe

But, how can i get last modified time of each record in faster way ? I am stuck with samething #31760363 – Orlop