How to identify if contact is modified or new contacts are added to phone contacts. I used CNContactStore frame work to get phone contacts. First time I need to get all contacts. From second time onwards I need to get modified contacts or newly added contacts only. ABAddressBook we can use creationDate and updation date. But in CNContactStore apple not providing these two fields. Then how can I know if one particular is added or updated.
How to achieve this?
Thanks in Advance.