Question

在iOS8（iPhone 5s）中获取联系人会导致随机崩溃。崩溃详情：http://hastebin.com/ukihinucaf.md

在线：

    ABMultiValueRef multiEmails = ABRecordCopyValue(person, kABPersonEmailProperty);

这是整个功能：

-(NSArray *) getAllContacts
{

    CFErrorRef *error = nil;

    ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, error);

    __block BOOL accessGranted = NO;
    if (ABAddressBookRequestAccessWithCompletion != NULL) {
        dispatch_semaphore_t sema = dispatch_semaphore_create(0);
        ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
            accessGranted = granted;
            dispatch_semaphore_signal(sema);
        });
        dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);

    }
    else {
        accessGranted = YES;
    }

    if (accessGranted) {

        ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, error);
        ABRecordRef source = ABAddressBookCopyDefaultSource(addressBook);
        CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeopleInSourceWithSortOrdering(addressBook, source, kABPersonSortByFirstName);
        CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);
        NSMutableArray* items = [NSMutableArray arrayWithCapacity:nPeople];
        for (int i = 0; i < nPeople; i++)
        {

            ABRecordRef person = CFArrayGetValueAtIndex(allPeople, i);

            //get Contact email

            ABMultiValueRef multiEmails = ABRecordCopyValue(person, kABPersonEmailProperty);

            for (CFIndex j=0; j<ABMultiValueGetCount(multiEmails); j++) {
                CFStringRef contactEmailRef = ABMultiValueCopyValueAtIndex(multiEmails, j);
                NSString *contactEmail = (__bridge NSString *)contactEmailRef;

                [items addObject:contactEmail];
            }

        }
        return items;

    } else {
        NSLog(@"Cannot fetch Contacts :( ");
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Fetch failed" message:@"Can't fetch your contacts." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
        [alert show];
        return nil;

    }
}

有人知道会出现什么问题吗？

Answer 1

您正在检索ABAddressBookGetPersonCount（所有来源中所有人的计数，而不仅仅是默认来源中的人数），并且当您在迭代时使用它作为上限阈值阵列。但是数组不包含通讯录中的所有人，而只包含默认源中的所有人。因此，您可能会超出阵列中的项目数。

我建议使用CFArrayGetCount而不是ABAddressBookGetPersonCount。

Answer 2

ABAddressBookCreateWithOptions（NULL，错误）;

应该是这个

CFErrorRef error = NULL;
ABAddressBookCreateWithOptions(NULL, &error);

在iOS8中获取联系人列表，崩溃了应用程序

2 个答案: