用xcode 5 开发访问IOS 7上面的通讯录有问题

NSMutableArray *addressBookTemp = [NSMutableArray array];

ABAddressBookRef addressBooks = ABAddressBookCreate();

CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBooks);

CFIndex nPeople = ABAddressBookGetPersonCount(addressBooks);

这段代码在IOS6是可以读取通讯录的,但在IOS7下面就不行,程序没报错,调试时候发现返回的都是nil,有木有朋友遇到这个问题?

找到原因了,原来IOS7需要隐私验证,调用通讯录里面API需要以下代码作为权限认证:

    __block BOOL accessGranted = NO;
if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusNotDetermined)
{ ABAddressBookRequestAccessWithCompletion(addressBooks, ^(bool granted, CFErrorRef error)
{
// First time access has been granted, add the contact accessGranted = granted;
});
}
else if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized)
{
// The user has previously given access, add the contact accessGranted = YES;
}
else
{
// The user has previously denied access // Send an alert telling user to change privacy setting in settings app
}
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