Question

使用FBConnect选择朋友，但FBSession的accessTokenData从不具有启动会话的用户的用户ID（在他们的登录演示中也不存在）。 FBFriendPickerViewController返回朋友用户的ID很好，但我没有看到任何关于当前用户的信息。是否可以从FB活动会话，accessTokenData或其他方式获取当前用户的Id？

修改是否可以从此次通话中返回用户的ID？

[FBSession openActiveSessionWithReadPermissions:@[@"public_profile",  @"user_friends"]

一步完成这一切会好得多。

Answer 1

你必须要求＆＃34; / me＆＃34;得到一个＆＃39; user_id＆＃39;因为access_token属性是加密的，你无法通过这种方式访问它。

Answer 2

这是我最终做的事情：

if (!FBSession.activeSession.isOpen) {
// if the session is closed, then we open it here, and establish a handler for state changes
[FBSession openActiveSessionWithReadPermissions:@[@"public_profile", @"user_friends"]
                                   allowLoginUI:YES
                              completionHandler:^(FBSession *session,
                                                  FBSessionState state,
                                                  NSError *error) {
                                if (error) {
                                  UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error"
                                                                                      message:error.localizedDescription
                                                                                     delegate:nil
                                                                            cancelButtonTitle:@"OK"
                                                                            otherButtonTitles:nil];
                                  [alertView show];
                                }
                                else if (session.isOpen) {

                                  if ([session.declinedPermissions containsObject:@"user_friends"]) {
                                    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"friends"
                                                                                        message:@"Must allow accessing friends"
                                                                                       delegate:nil
                                                                              cancelButtonTitle:@"OK"
                                                                              otherButtonTitles:nil];
                                    [alertView show];
                                  }
                                  else {
                                    [[FBRequest requestForMe] startWithCompletionHandler:
                                     ^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {

                                       if (error) {
                                         UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error"
                                                                                             message:error.localizedDescription
                                                                                            delegate:nil
                                                                                   cancelButtonTitle:@"OK"
                                                                                   otherButtonTitles:nil];
                                         [alertView show];
                                       }
                                       else {
                                         NSLog(@"name %@  id %@", user.first_name, user.objectID);

                                         [[FBRequest requestForMyFriends] startWithCompletionHandler: ^(FBRequestConnection *connection,
                                                                                       NSDictionary* result,
                                                                                       NSError *error) {
                                           NSArray* friends = [result objectForKey:@"data"];
                                           NSLog(@"Found: %i friends", friends.count);

                                           for (NSDictionary<FBGraphUser>* friend in friends) {
                                             NSLog(@"I have a friend named %@ with id %@", friend.name, friend.objectID);
                                           }
                                         }];
                                       }
                                     }];
                                  }
                                }
                              }];

FBSession.session.accessTokenData.userID总是为零

2 个答案: