CODEWITHSUNDEEP
ioscncontact
Poles
Poles

Reputation: 3682

Check if a contact number exists or not in contacts list using CNContacts in iOS

I'm implementing a logic to check whether a contact exists or not in the contacts list and based upon this result I'm inserting the contact. My progress so far:

__block NSString *strPhoneNumber = @"1093874652";

if ([CNContactStore class]) {
    CNContactStore *addressBook = [[CNContactStore alloc] init];

    NSArray *keysToFetch =@[CNContactPhoneNumbersKey];
                 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), ^{


    NSError *error = nil;
    CNContactFetchRequest *fetchRequest =[[CNContactFetchRequest alloc] initWithKeysToFetch:keysToFetch];

    __block BOOL isExists = NO;

    [addressBook enumerateContactsWithFetchRequest:fetchRequest error:&error usingBlock:^(CNContact * _Nonnull contact, BOOL * _Nonnull stop) {

    NSArray *phoneNumbers =[[contact.phoneNumbers valueForKey:@"value"] valueForKey:@"digits"];


    if ([phoneNumbers containsObject:strPhoneNumber]) {
        isExists = YES;
        *stop = YES;
    }
    else
        isExists = NO;

    }];

    dispatch_async(dispatch_get_main_queue(), ^{

    if (isExists == NO) {
     //This is the method for saving the contacts. I'm not implementing here.                    
     [self saveContactWithName:@"John Doe" withContactEmail:@"[email protected]@" withContactPhone:str];                                 
    }

    });
  });
}

Now, the problem is after enumerating, the code under if (isExists == NO) fires several times and saving the contact multiple times.How do I stop it? My only need is if the contact exits then don't save it otherwise save it only one time. Any help will be appreciated.

Upvotes: 1

Views: 1970

Answers (1)

Akhilrajtr
Akhilrajtr

Reputation: 5182

replace the below part in your code,

NSArray *phoneNumbers = [[contact.phoneNumbers valueForKey:@"value"] valueForKey:@"digits"];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"self == [c] %@", strPhoneNumber];
NSArray *filtered = [phoneNumbers filteredArrayUsingPredicate:predicate];
if ([filtered count] > 0) {
    isExists = YES;
    *stop = YES;
}
else
    isExists = NO;

}];

Upvotes: 1

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