Question

我正在尝试获取这样的联系人列表：

CFErrorRef *error = nil;
ABAddressBookRef addressBook = nil;

__block BOOL accessGranted = NO;

if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusNotDetermined ||
    ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized) {

    addressBook = ABAddressBookCreateWithOptions(NULL, error);
    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 if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusDenied ||
         ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusRestricted) {
    return nil;
}

if (!accessGranted) {

    if (addressBook) CFRelease(addressBook);
    return nil;
}

CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);

if (nPeople <= 0) {
    CFRelease(addressBook);
    return nil;
}

ABRecordRef source = ABAddressBookCopyDefaultSource(addressBook);
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeopleInSourceWithSortOrdering(addressBook, source, kABPersonSortByFirstName);

if (!allPeople) return nil;

NSMutableArray *contactsArray = [NSMutableArray arrayWithCapacity:nPeople];

for (CFIndex i = 0; i < nPeople; ++i) {

    ABRecordRef person = CFArrayGetValueAtIndex(allPeople, i);

    if (!person) continue;

    ContactData *contact = [ContactData new];
    contact.firstName = (__bridge_transfer NSString*)ABRecordCopyValue(person, kABPersonFirstNameProperty);

它正在我的iPhone 5s和模拟器上工作，但是在使用SIGSEGV的线路上，测试版iPod设备上的版本崩溃了：

   contact.firstName = (__bridge_transfer NSString*)ABRecordCopyValue(person, kABPersonFirstNameProperty);

这是堆栈：

3 AppSupport 0x34129a04 CPRecordCopyProperty 4 AppSupport 0x34129a04 CPRecordCopyProperty 5 AddressBook 0x2fd6ad22 ABRecordCopyValueUnfiltered 6地址簿0x2fd6abc6 ABRecordCopyValue

Answer 1

我遇到了同样的错误，问题是：

CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeopleInSourceWithSortOrdering(addressBook, source, kABPersonSortByFirstName);

和

CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);

正在提供不同数量的联系人（因此在您的情况下nPeople可能大于allPeople，这会导致崩溃）。 “来源”似乎没有给出地址簿中的所有联系人。将其更改为nil为我解决了这个问题。另外，我确定会这样做：nPeople = CFArrayGetCount(allPeople);

Jokinryou Tsui在这篇文章中解释了解决方案：ABAddressBookCopyArrayOfAllPeople and ABAddressBookGetPersonCount return different sizes

（这是我的第一篇文章，所以我不确定我是否违反任何规则或遵循正确的程序。我希望答案有所帮助！）

ABRecordCopyValue与SIGSEGV崩溃

1 个答案: