ios - kABPersonLastName 不起作用

Question

我使用此代码，因为kABPersonEmailProperty它有效，但kABPersonLastNameProperty不是。为什么？

NSMutableArray *allNumbers = [[NSMutableArray alloc] initWithCapacity:CFArrayGetCount(people)];
for (CFIndex i = 0; i < CFArrayGetCount(people); i++) {
    ABRecordRef person2 = CFArrayGetValueAtIndex(people, i);
    ABMultiValueRef numbers = ABRecordCopyValue(person2, kABPersonLastNameProperty);
    for (CFIndex j=0; j < ABMultiValueGetCount(numbers); j++) {
        NSString* number = (NSString *)CFBridgingRelease(ABMultiValueCopyValueAtIndex(numbers, j));
        [allNumbers addObject:number];
    }
    CFRelease(numbers);
}

Answer 1

一个联系人只有一个姓氏。只需这样做：

NSString *lastName = (__bridge_transfer NSString *)ABRecordCopyValue(person2, kABPersonLastNameProperty);