如何从ABPeoplePicker获取用户选择的电子邮件地址？

Question

Stackoverflow上的其他人发布了一种从联系人列表中获取用户所选电话号码的方法。可以为电子邮件地址完成，如果是，我该怎么办？这是代码：

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier
{
    if (property == kABPersonPhoneProperty) {
        ABMultiValueRef multiPhones = ABRecordCopyValue(person, kABPersonPhoneProperty);
        for(CFIndex i = 0; i < ABMultiValueGetCount(multiPhones); i++) {
            if(identifier == ABMultiValueGetIdentifierAtIndex (multiPhones, i)) {
                CFStringRef phoneNumberRef = ABMultiValueCopyValueAtIndex(multiPhones, i);
                CFRelease(multiPhones);
                NSString *phoneNumber = (__bridge NSString *) phoneNumberRef;
                CFRelease(phoneNumberRef);
                _contactNumber.text = [NSString stringWithFormat:@"%@", phoneNumber];
            }
        }
    }

    [self dismissViewControllerAnimated:YES completion:nil];
    return NO;
}

以下是帖子的链接： How do you get a persons phone number from the address book?

Answer 1

按如下方式实施

- (BOOL)peoplePickerNavigationController:
        (ABPeoplePickerNavigationController *)peoplePicker
        shouldContinueAfterSelectingPerson:(ABRecordRef)person
        property:(ABPropertyID)property
        identifier:(ABMultiValueIdentifier)identifier 
{
    ABMultiValueRef emails = ABRecordCopyValue(person, property);
    CFIndex ix = ABMultiValueGetIndexForIdentifier(emails, identifier);
    CFStringRef email = ABMultiValueCopyValueAtIndex(emails, ix);
    NSLog(@"%@", email); // do something with the email here
    if (email) CFRelease(email);
    if (emails) CFRelease(emails);
    [self dismissViewControllerAnimated:YES completion:nil];
    return NO;
}