iphone - 更改 ABRecordRef 属性

Question

我有以下cpde:

ABRecordRef person = ABAddressBookGetPersonWithRecordID(addressBook, ABRecordGetRecordID(self.recordRef_));

 CFErrorRef  error = NULL;

    if ([self.nameTextField_.text isNotNull]){
        NSArray *nameStringArray = [self.nameTextField_.text componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
        ABRecordSetValue(person, kABPersonFirstNameProperty, (__bridge CFTypeRef)([nameStringArray objectAtIndex:0]), NULL);
        if ([nameStringArray count] > 1){
            ABRecordSetValue(person, kABPersonLastNameProperty, (__bridge CFTypeRef)([nameStringArray lastObject]), &error);
        }
    }

但是，在这段代码之后它给了我这个错误:

Error Domain=ABAddressBookErrorDomain Code=0 "The operation couldn’t be completed. (ABAddressBookErrorDomain error 0.)"

知道这是为什么吗？

Answer 1

错误消息似乎毫无用处，但由于您的其余代码看起来是有效的，我猜测您的应用程序未被用户授权访问地址簿数据库。在尝试访问地址簿之前，使用如下代码检查您的授权状态:

if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized) {
    // We're good to go
} else {
    // Hasn't been authorized by the user
    // You can check the exact authorization status for more information on the
    // exact reason why you can't access the Address Book (e.g. denied, restricted, etc.)
}