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When a new contact is added to the address book, I need to do something to it. At least I need to get some contact identifiers for later use. As you may guess, I would like to my app works in background or maybe starts in the background when a new contact is added.

Is this even possible in iOS? If yes, how?

Thank you.

Arash Etemad
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Roman Reimche
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1 Answers1

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ABAddressBookRegisterExternalChangeCallback Registers a callback to receive notifications when the Address Book database is modified.

You can get the updated contact with help of this : Detect what was changed from ABAddressBookRegisterExternalChangeCallback

Rocky
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