Retrieve specified friend profiles

When you already know the friends' userID values, retrieve the corresponding OIMFriendInfo objects as needed:

[[OIMManager manager] getSpecifiedFriendsInfo:@[@"user_a", @"user_b"]
                                  filterBlack:YES
                                    onSuccess:^(NSArray<OIMFriendInfo *> *friends) {
                                        [friendStore mergeFriends:friends];
                                    }
                                    onFailure:nil];

The first argument is an array of user IDs. filterBlack determines whether blocked users are excluded. The success callback returns matching friend profiles; merge them by userID. An empty array can mean that the targets are not friends or were filtered out.

This query does not trigger a friendship delegate. If you only need to check relationship status, use checkFriend:onSuccess:onFailure:.