Objective C Adding a Contact to a specific Group in the iPhone

Question

I am making an App that stores contacts in the address book , I am using Xcode 4.2

I know how to add a contact in the address book , let s say I have a group called

Answer 1

First Check if the group exist:

    -(void) CheckIfGroupExistWithName:(NSString*)groupName {


BOOL hasGroup = NO;
//checks to see if the group is created ad creats group for HiBye contacts
ABAddressBookRef addressBook = ABAddressBookCreate();
CFIndex groupCount = ABAddressBookGetGroupCount(addressBook);
CFArrayRef groupLists= ABAddressBookCopyArrayOfAllGroups(addressBook);

    for (int i=0; i

}

Use this to create new group, and store its ID

-(void) createNewGroup:(NSString*)groupName {

ABAddressBookRef addressBook = ABAddressBookCreate();
ABRecordRef newGroup = ABGroupCreate();
ABRecordSetValue(HiByeGroup, kABGroupNameProperty,groupName, nil);
ABAddressBookAddRecord(addressBook, newGroup, nil);
ABAddressBookSave(addressBook, nil);
CFRelease(addressBook);

//!!! important - save groupID for later use
self.groupId = ABRecordGetRecordID(newGroup);
CFRelease(newGroup);

}

The is how to set a contact to a group

            //Use the Group ID you stored.
            ABRecordRef HiByeGroup = ABAddressBookGetGroupWithRecordID(addressbook, self.groupId);
    BOOL didAdd = ABGroupAddMember(HiByeGroup,ref,&error);

    if (!didAdd) {
        // Update to handle the error appropriately.
        NSLog(@"Unresolved error while adding person to HiBye group %@", &error);
        exit(-1);  // Fail
    }

    BOOL didSave = ABAddressBookSave(addressbook, &error);

    if (!didSave) {
    // Update to handle the error appropriately.
        NSLog(@"Unresolved error while saving address book%@", &error);
        exit(-1);  // Fail
    }

Good luck