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

Try out the code originally posted by malinois:

ABAddressBookRef addressBook = ABAddressBookCreate(); // create address book record 
ABRecordRef person = ABPersonCreate(); // create a person  

NSString *phone = @"0123456789"; // the phone number to add  

//Phone number is a list of phone number, so create a multivalue  
ABMutableMultiValueRef phoneNumberMultiValue = ABMultiValueCreateMutable(kABPersonPhoneProperty); 
ABMultiValueAddValueAndLabel(phoneNumberMultiValue ,phone,kABPersonPhoneMobileLabel, NULL);

ABRecordSetValue(person, kABPersonFirstNameProperty, @"FirstName" , nil); // first name of the new person 
ABRecordSetValue(person, kABPersonLastNameProperty, @"LastName", nil); // his last name 
ABRecordSetValue(person, kABPersonPhoneProperty, phoneNumberMultiValue, &anError); // set the phone number property 
ABAddressBookAddRecord(addressBook, person, nil); //add the new person to the record

ABRecordRef group = ABGroupCreate(); //create a group 
ABRecordSetValue(group, kABGroupNameProperty,@"My Group", &error); // set group's name 
ABGroupAddMember(group, person, &error); // add the person to the group         
ABAddressBookAddRecord(addressBook, group, &error); // add the group   

ABAddressBookSave(addressBook, nil); //save the record  

CFRelease(person); // relase the ABRecordRef  variable

Hope this helps.