Update app core data/ Realm when user add new contact

Question

I'm currently working on an app, which take the all the address book contacts information and store it core data / Realm. But it happen only once, but how to capture when user add new contact / delete / update on the phone contact list.

score 0 · Answer 1 · answered Mar 02 '16 at 12:25

0

when user add or update the phonebook, you can capture the changes through external call back methods mentioned below.

IOS9

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(CNcontactDidChange:)name:CNContactStoreDidChangeNotification object:nil];

IOS8

 ABAddressBookRegisterExternalChangeCallback(book,MyAddressBookExternalChangeCallback,(__bridge void *)(self));

Then use the method mentioned below to update Realm ,

+ (instancetype)createOrUpdateInRealm:(RLMRealm *)realm withValue:(id)value;

answered Mar 02 '16 at 12:25

Vijay Karthik

457
4
6

Yeah, but how to get the exact contact ID which changed the contact list ? – Mudith Chathuranga Silva Mar 02 '16 at 12:35
You don't get info about that, so that you need to refetch all contacts you are interested in. – marius Mar 02 '16 at 16:45
Refer this link .. http://stackoverflow.com/questions/17440115/detect-what-was-changed-from-abaddressbookregisterexternalchangecallback – Vijay Karthik Mar 03 '16 at 04:08

Update app core data/ Realm when user add new contact

1 Answers1