iOS 6地址簿无法正常工作？ [英] iOS 6 Address Book not working?
问题描述
我从地址簿中以编程方式检索电子邮件地址的方法似乎不再适用于iOS 6设备。它在iOS 5中工作，奇怪的是，仍然适用于iOS 6模拟器。是否有一种以编程方式从用户的地址簿中检索联系人的新方法？
My method of programmatically retrieving e-mail addresses from the Address Book no longer seems to work on iOS 6 devices. It worked in iOS 5 and oddly, still works in the iOS 6 Simulator. Is there a new way to programmatically retrieve contacts from a users' Address Book?
ABAddressBookRef addressBook = ABAddressBookCreate();
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook);
CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);
self.contacts = [[NSMutableArray alloc] init];
int contactIndex = 0;
for (int i = 0; i < nPeople; i++) {
// Get the next address book record.
ABRecordRef record = CFArrayGetValueAtIndex(allPeople, i);
// Get array of email addresses from address book record.
ABMultiValueRef emailMultiValue = ABRecordCopyValue(record, kABPersonEmailProperty);
NSArray *emailArray = (__bridge_transfer NSArray *)ABMultiValueCopyArrayOfAllValues(emailMultiValue);
[self.contacts addObject:emailArray];
}
为了澄清，上面没有崩溃，它只是没有返回任何结果。 ABAddressBookCopyArrayOfAllPeople为空。谢谢！
To clarify, the above does not crash, it simply returns no results. ABAddressBookCopyArrayOfAllPeople is empty. Thanks!
推荐答案
可能与新的隐私控制相关 - 从iOS 6开始，在设备上，应用无法访问未经用户许可，用户的联系人。从文档：
Probably related to the new privacy controls—as of iOS 6, on the device, an app can’t access the user’s contacts without their permission. From the documentation:
在iOS 6.0及更高版本中，如果调用者无权访问
通讯簿数据库：
On iOS 6.0 and later, if the caller does not have access to the Address Book database:
•对于针对iOS 6.0及更高版本链接的应用，此函数返回NULL。
• For apps linked against iOS 6.0 and later, this function returns NULL.
•对于与之前链接的应用在iOS版本中，此函数返回一个空的只读数据库。
• For apps linked against previous version of iOS, this function returns an empty read-only database.
如果您还没有看到权限警报出现（ SomeApp希望访问您的联系人），直接地址簿API可能只是假设他们没有访问权限而且默默地失败;您可能必须显示来自AddressBookUI框架的内容才能触发它。
If you haven’t seen the permissions alert come up ("SomeApp would like access to your contacts"), it’s possible that the direct address-book APIs just assume that they don’t have access and silently fail; you might have to display something from the AddressBookUI framework to trigger it.
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