从 Facebook 读取信息

Posted 2023-03-24

【中文标题】从 Facebook 读取信息

【英文标题】：Reading information from Facebook

【发布时间】：2013-11-09 18:03:54

【问题描述】：

我是 ios 的初学者。我正在尝试创建一个应用程序并在 *** 和其他一些网站中引用了很多帖子，我使用以下代码访问 Facebook 帐户。

AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];

if (appDelegate.session.isOpen) 
    [appDelegate.session closeAndClearTokenInformation];

 else 
    if (appDelegate.session.state != FBSessionStateCreated) 
        appDelegate.session = [[FBSession alloc] init];
    
    [appDelegate.session openWithCompletionHandler:^(FBSession *session,
                                                     FBSessionState status,
                                                     NSError *error) 
    ];

之后，在一个函数中，我使用以下代码访问用户的 Facebook 详细信息。

    if (FBSession.activeSession.isOpen) 
    [[FBRequest requestForMe] startWithCompletionHandler:
     ^(FBRequestConnection *connection,
       NSDictionary<FBGraphUser> *user,
       NSError *error) 
         if (!error) 
             _FirstName.text = user.first_name;
             regisrationdetails.fbid = user.id;
             _LastName.text=user.last_name;
             _EmailAddress.text=user.email;
             NSArray *locationarray=[[NSArray alloc]initWithObjects:user.location,nil];
             _City.text=[locationarray objectAtIndex:1];
             NSLog(@"%@",user.first_name);

         
     ];

没有显示错误，但我无法从 Facebook 的文本字段中获取信息。如果擅长此操作的人知道如何访问信息，请帮助我。

【参考方案1】：

- (IBAction)getMeButtonTapped:(id)sender 
if(!_accountStore)
    _accountStore = [[ACAccountStore alloc] init];

ACAccountType *facebookTypeAccount = [_accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];

[_accountStore requestAccessToAccountsWithType:facebookTypeAccount
                                       options:@ACFacebookAppIdKey: @"571438296262222", ACFacebookPermissionsKey: @[@"email"]
                                    completion:^(BOOL granted, NSError *error) 
                                        if(granted)
                                            NSArray *accounts = [_accountStore accountsWithAccountType:facebookTypeAccount];
                                            _facebookAccount = [accounts lastObject];
                                            NSLog(@"Success");

                                            [self me];
                                        else
                                            // ouch
                                            NSLog(@"Fail");
                                            NSLog(@"Error: %@", [error localizedDescription]);
                                        
                                    ];


- (void)me

NSURL *meurl = [NSURL URLWithString:@"https://graph.facebook.com/me"];

SLRequest *merequest = [SLRequest requestForServiceType:SLServiceTypeFacebook
                                          requestMethod:SLRequestMethodGET
                                                    URL:meurl
                                             parameters:nil];

merequest.account = _facebookAccount;

[merequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) 
    NSString *meDataString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];

    NSLog(@"%@", meDataString);

];

使用此希望对您有所帮助，同时添加社交框架和帐户框架

【讨论】：

什么是_accountStore...？？

您的帐户信息的存储位置，即 ACAccountStore

【参考方案2】：

试试这个..

- (void)fetchFacebookUserInfo 

    if ( FBSession.activeSession.isOpen) 

    [FBRequestConnection startForMeWithCompletionHandler:^(FBRequestConnection *connection,
                                                           id<FBGraphUser> user,
                                                           NSError *error) 
        if (!error) 
            NSString *name = user.name;
            NSString *userName = user.username;
            NSString *firstName = user.first_name;
            NSString *lastName = user.last_name;
            NSString *email1 = [user objectForKey:@"email"];
            NSString *birthday1 = user.birthday;
            NSString *locale = [user objectForKey:@"locale"];
            NSString *location = [user.location objectForKey:@"name"];

      

  ];