kABPersonEmailProperty 返回奇怪的东西

Question

我试图获取 ABRecordRef 的电子邮件地址，如下所示：

ABRecordRef ref = CFArrayGetValueAtIndex( allPeople, i );
NSString *email = [(NSString*) ABRecordCopyValue( ref, kABPersonEmailProperty ) autorelease];
NSLog(@"%@", email);

它返回：

_$!<Home>!$_ (0x6840af0) - [email protected] (0x6840cc0)

电子邮件周围的这些东西是什么？我怎样才能摆脱它？谢谢。

Answer 1

kABPersonEmailProperty 的类型为 kABMultiStringPropertyType。没有单一的电子邮件地址属性，一个人可能有一个用于工作的电子邮件地址，一个用于家庭的电子邮件地址，等等。
您可以使用 ABMultiValueCopyArrayOfAllValues 获取所有电子邮件地址的数组：

ABMultiValueRef emailMultiValue = ABRecordCopyValue(ref, kABPersonEmailProperty);
NSArray *emailAddresses = [(NSArray *)ABMultiValueCopyArrayOfAllValues(emailMultiValue) autorelease];
CFRelease(emailMultiValue);

要获取电子邮件地址的标签，请使用 ABMultiValueCopyLabelAtIndex。 “_$!!$”是一个特殊常量，定义为kABHomeLabel，还有kABWorkLabel。

Answer 2

基本上是 @omz 答案的更多细节。这是我用来提取家庭电子邮件和人员姓名的代码：

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
{
    ABMultiValueRef emails = ABRecordCopyValue(person, kABPersonEmailProperty);
    for (CFIndex i = 0; i < ABMultiValueGetCount(emails); i++) {
        NSString *label = (__bridge NSString *) ABMultiValueCopyLabelAtIndex(emails, i);
        if ([label isEqualToString:(NSString *)kABHomeLabel]) {
            NSString *email = (__bridge NSString *) ABMultiValueCopyValueAtIndex(emails, i);
            _emailTextField.text = email;
        }
    }
    CFRelease(emails);


    NSString *first = (__bridge NSString *)ABRecordCopyValue(person, kABPersonFirstNameProperty);
    NSString *last = (__bridge NSString *)ABRecordCopyValue(person, kABPersonLastNameProperty);

    if (first && first.length > 0 && last && last.length > 0) {
        _nicknameTextField.text = [NSString stringWithFormat:@"%@ %@", first, last];
    } else if (first && first.length > 0) {
        _nicknameTextField.text = first;
    } else {
        _nicknameTextField.text = last;
    }

    [self dismissModalViewControllerAnimated:YES];

    return NO;
}

Answer 3

试试这个......

ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init];
picker.peoplePickerDelegate = self;
// Display only a person's phone, email, and birthdate
NSArray *displayedItems = [NSArray arrayWithObjects:
[NSNumber numberWithInt:kABPersonPhoneProperty],
[NSNumber numberWithInt:kABPersonEmailProperty],
[NSNumber numberWithInt:kABPersonBirthdayProperty], nil];
picker.displayedProperties = displayedItems;