how to edit a phone number values programmatically from address book ios - iphone

Question

I'm trying to replace an specific phone number for an specific contact programmatically in iOS, taking the contacts form address book.
I don't know why I can't save the new phone number and refresh the address book to show the change.
I'm doing this:
+(BOOL) changeContactPhoneNumber:(NSString *) phoneSought
forThis:(NSString *) newPhoneNumber{
ABAddressBookRef addressBook = ABAddressBookCreate();
ABRecordRef contactSelected;
CFStringRef mobileLabelNumber;
CFErrorRef error = nil;
// Do whatever you want here.
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook);
CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);
for (int i = 0; i < nPeople; i++)
{
ABRecordRef ref = CFArrayGetValueAtIndex(allPeople, i);
ABMultiValueRef phones = (ABMultiValueRef)ABRecordCopyValue(ref, kABPersonPhoneProperty);
NSString* mobilePhoneNumber=#"";
if (ABMultiValueGetCount(phones) > 0) {
for (int i=0; i < ABMultiValueGetCount(phones); i++) {
[mobilePhoneNumber release];
mobilePhoneNumber = (NSString*)ABMultiValueCopyValueAtIndex(phones, i);
if([mobilePhoneNumber isEqualToString:phoneSought]){
contactSelected = ref;
mobileLabelNumber = ABMultiValueCopyLabelAtIndex(phones, i);
}
}
}
}
ABMutableMultiValueRef phoneNumberMultiValue = ABMultiValueCreateMutable(kABPersonPhoneProperty);
bool didAddPhone = ABMultiValueAddValueAndLabel(phoneNumberMultiValue ,(__bridge CFTypeRef)newPhoneNumber,mobileLabelNumber, NULL);
if(didAddPhone){
ABRecordSetValue(ABAddressBookGetPersonWithRecordID(addressBook, contactSelected),
kABPersonPhoneProperty,
phoneNumberMultiValue,
nil);
bool bSuccess = ABAddressBookSave(addressBook, &error);
if (!bSuccess) {
NSLog(#"Could not save to address book: %#", error);
} else {
return YES;
}
} else {
NSLog(#"Error editing phone number: %#", error);
error = nil;
}
return NO;
}

Answer 1

You should debug your code and try to figure out whether the format of the phone numbers you are providing to the method are matching or not.
For e.g. when i am logging my contact list phone numbers these are results
Number...555-478-7672
Number...[phone]
Number...[phone]
Number...888-555-5512
Number...888-555-1212
Number...555-522-8243
Number...[phone]
Number...[phone]
Number...555-610-6679
And i was comparing these number against unformatted number string.
Secondly
ABRecordSetValue(ABAddressBookGetPersonWithRecordID(addressBook, contactSelected),
kABPersonPhoneProperty,
phoneNumberMultiValue,
nil);
Whose actual declaration is
ABRecordSetValue(ABRecordRef record, ABPropertyID property, CFTypeRef value, CFErrorRef* error);
Although ABAddressBookGetPersonWithRecordID returns a ABRecordRef but you already have ABRecordRef contactSelected; so in my view you should use
ABRecordSetValue(contactSelected,kABPersonPhoneProperty,phoneNumberMultiValue,nil);
Please correct me if i am wrong or have misunderstood your code!