iphone - 如何仅从结果集中获取用户名

Question

在选择联系人的 Twitter 详细信息时，如何仅从地址簿中获取用户名值

if ( property == kABPersonSocialProfileProperty) {

        ABMultiValueRef multi = ABRecordCopyValue(person, property);


        for (CFIndex i = 0; i < ABMultiValueGetCount(multi); i++) {

            CFStringRef socialLabel = ABAddressBookCopyLocalizedLabel(ABMultiValueCopyLabelAtIndex(multi, identifier));

            CFStringRef social = ABMultiValueCopyValueAtIndex(multi, i);

            NSDictionary* personaddress =(NSDictionary*) ABMultiValueCopyValueAtIndex(multi, i);        

            NSString*twitterdetails = [personaddress valueForKey:(NSString *)kABPersonSocialProfileServiceTwitter];
            NSLog(@"%@ twitterdetails",twitterdetails);  


            NSString *aString = (NSString *)social;


            NSLog(@"%@ aString",aString);
        }

我得到的结果如下

{
    service = twitter;
    url = "http://twitter.com/manoas2136";
    username = manoas2136;
} aString

请告诉我如何从上面的结果集中只获取用户名

Answer 1

试试这段代码

  NSDictionary* personalDetails = [NSDictionary dictionaryWithDictionary:(NSDictionary*)ABMultiValueCopyValueAtIndex(multi, i)];
  NSString* aString = [personalDetails valueForKey:@"username"];
  NSLog(@"%@ aString",aString);

结果 manoas2136 aString

您将 NSDictionary 值转换为字符串，因此它将 NSDictionary 的所有结果合并为 NSString，因此您可以使用 valueForKey 仅提取用户名: