How to check contact source in CNContact swift?

Question

In Contact apps there's group like "iCloud", "yahoo", "gmail". In swift, is it possible to fetch contact from gmail source only?

score 1 · Answer 1 · answered Mar 21 '18 at 06:50

1

Tested code. Hope it will solve your problem...

   func getAppropriateName(for container: CNContainer?) -> String? {
        var name = ""
        if (container?.name == "Card") || container?.name == nil {
            name = "iCloud"
        }
        else if (container?.name == "Address Book") {
            name = "Google"
        }
        else if (container?.name == "Contacts") {
            name = "Yahoo"
        }
        else {
            name = "Facebook"
        }
        return name
    }

answered Mar 21 '18 at 06:50

emraz

1,563
20
28

is it really like this that "Address Book" will be always google? who to get gmail for that group – user8462556 Dec 01 '20 at 15:09
I wouldn't say that Yahoo or Facebook are safe to declare there, as "Contacts" is also used as a name by Outlook.com containers, and ANYTHING else would show Facebook in this code – Peter Johnson Aug 06 '21 at 11:33

score 0 · Answer 2 · edited May 23 '17 at 12:09

0

iCloud/yahoo/gmail etc are CNContainer. Gmail/iCloud is of type CNContainerTypeCardDAV. So first you need to fetch all contacts, and then filter the array based on the CNContainerType of that contact. But unfortunately, we cannot identify which CardDav is it, i.e iCloud/Gmail.

Please see more details here: How do we know which CNContainer represents iCloud?

edited May 23 '17 at 12:09

Community

1
1

answered Aug 08 '16 at 09:58

Annie Dev

282
1
10

score 0 · Answer 3 · answered Feb 17 '17 at 14:14

You can achieve this by looking at Contacts framework runtime headers here: https://github.com/JaviSoto/iOS10-Runtime-Headers/tree/master/Frameworks/Contacts.framework

You can call them by performSelector message. It's a bit messy, but works.

Generally what you have to do is following:

CNContactStore* store = [CNContactStore new];

// fetch accounts that sync contacts with your device (array of CNAccount)
// since CNAccount class isn't available by default, we treat it as NSObject for our puproses

NSArray* accounts = [store performSelector:@selector(accountsMatchingPredicate:error:) withObject:nil withObject:nil];

// you can iterate through this array, I just use first one for this example

NSObject* account = [accounts firstObject];

// get identifier of the account for NSPredicate we use next

NSString* accountId = [account performSelector:@selector(identifier)];

// Display name of the account (aka Yahoo, Gmail etc.)
NSString* accountName = [account performSelector:@selector(_cnui_displayName)];

// NSPredicate that help us to get corresponding CNContainer

NSPredicate* containerPredicate = [[CNContainer class] performSelector:@selector(predicateForContainersInAccountWithIdentifier:) withObject:accountId];

// Fetching CNContainer
CNContainer* container = [[store containersMatchingPredicate:containerPredicate error:nil] firstObject];

After that it's all about general usage of CNContainers. Hope it will help.

PS. It works on iOS 10, for future versions you should check for Contacts.framework runtime changes.

PPS. I didn't check on swift, but should work either.

Sorry for my english. Good luck :)

perform selector is not working for me and its crashing. is there a way to get this done ? — Sunil_Vaishnav, Jun 02 '17 at 04:49
@Sunil_Vaishnav can you please provide your code that causes the crash? Or you're using the one that I wrote? — NewObjective, Jun 13 '17 at 13:03
@Sunil_Vaishnav Did either of you figure this out? Is there an updated solution to this? I don't see a lot of posts asking how to identify which CNContainer is being synced to iCloud. — daniel, Sep 20 '22 at 07:02

How to check contact source in CNContact swift?

3 Answers3