将人员组添加到 ABAddressBookRef，组添加正常，但人员未添加到组？

我有几行 Objective-C 代码，例如：

ABAddressBookRef addressBook;
CFErrorRef error = NULL;
addressBook = ABAddressBookCreate();
ABRecordRef group = ABGroupCreate();
ABRecordSetValue(group, kABGroupNameProperty,@"My Group", &error);

ABRecordRef person = ABPersonCreate();
ABRecordSetValue(person,kABPersonFirstNameProperty,@"Huy 1111111",&error);
ABRecordSetValue(person,kABPersonLastNameProperty,@"AseDra",&error);
ABGroupAddMember(group, person, &error);

ABAddressBookAddRecord(addressBook, group, &error);

ABAddressBookSave(addressBook,&error);

它运行良好，没有错误，组已添加到模拟器地址簿，但人员没有添加到模拟器地址簿。谁能告诉我哪里错了？

根据 iOS 通讯录编程指南（下面的链接），人员记录必须存在于通讯录中，然后才能将其添加到组中。

“在将人员记录添加到组之前，它必须已保存到通讯簿数据库中。”

http://developer.apple.com/library/ios/#documentation/ContactData/Conceptual/AddressBookProgrammingGuideforiPhone/500-DirectInteraction/DirectInteraction.html%23//apple_ref/doc/uid/TP40007744-CH6-SW4 http://developer.apple.com/library/ios/#documentation/ContactData/Conceptual/AddressBookProgrammingGuideforiPhone/500-DirectInteraction/DirectInteraction.html%23//apple_ref/doc/uid/TP40007744-CH6-SW4

所以也许这会起作用

ABAddressBookRef addressBook;
CFErrorRef error = NULL;
addressBook = ABAddressBookCreate();

ABRecordRef person = ABPersonCreate();
ABRecordSetValue(person,kABPersonFirstNameProperty,@"Huy 1111111",&error);
ABRecordSetValue(person,kABPersonLastNameProperty,@"AseDra",&error);

// add the person record
ABAddressBookAddRecord(addressBook, person, &error);

ABRecordRef group = ABGroupCreate();
ABRecordSetValue(group, kABGroupNameProperty,@"My Group", &error);
ABGroupAddMember(group, person, &error);
ABAddressBookAddRecord(addressBook, group, &error);

ABAddressBookSave(addressBook,&error);