Picking an email address from Address Book with no fail

gistfile1.m

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)
peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier {

	ABMultiValueRef emails = ABRecordCopyValue(person, property);
	CFStringRef email = ABMultiValueCopyValueAtIndex(emails, identifier);

	NSString *str = [textField text];

	if (![str isEqualToString:@""]) {
		str = [NSString stringWithFormat:@"%@, %@", str, email];
	} else {
		str = (NSString *)email;
	}

	[textField setText:str];
	[controller dismissModalViewControllerAnimated:YES];

	return NO;
}

gistfile2.m

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)
peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier {

	ABMultiValueRef emails = ABRecordCopyValue(person, property);
	NSArray *emailArray = [(id)ABMultiValueCopyArrayOfAllValues(emails)
                 autorelease];
	const NSUInteger emailIndex = ABMultiValueGetIndexForIdentifier(emails,
                 identifier);
	NSString *email = [emailArray objectAtIndex:emailIndex];

	NSString *str = [textField text];

	if (![str isEqualToString:@""]) {
		str = [NSString stringWithFormat:@"%@, %@", str, email];
	} else {
		str = (NSString *)email;
	}

	[textField setText:str];
	[controller dismissModalViewControllerAnimated:YES];

	return NO;
}