从 Facebook iOS 7 获取用户名和个人资料图片 [英] Getting username and profile picture from Facebook iOS 7

问题描述

我已经阅读了很多关于从 Facebook 获取信息的教程，但到目前为止我都失败了.我只想从 Facebook 获取用户名和个人资料图片.

I have read a lot of tutorials about getting information from Facebook, but I have failed so far. I just want to get username and profile picture from Facebook.

- (IBAction)login:(id)sender {

   [FBSession openActiveSessionWithReadPermissions:@[@"email",@"user_location",@"user_birthday",@"user_hometown"]
                                   allowLoginUI:YES
                              completionHandler:^(FBSession *session, FBSessionState state, NSError *error) {

   switch (state) {
      case FBSessionStateOpen:
         [[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *user, NSError *error) {
            if (error) {
               NSLog(@"error:%@",error);
            } else {
               // retrive user's details at here as shown below
               NSLog(@"FB user first name:%@",user.first_name);
               NSLog(@"FB user last name:%@",user.last_name);
               NSLog(@"FB user birthday:%@",user.birthday);
               NSLog(@"FB user location:%@",user.location);
               NSLog(@"FB user username:%@",user.username);
               NSLog(@"FB user gender:%@",[user objectForKey:@"gender"]);
               NSLog(@"email id:%@",[user objectForKey:@"email"]);
               NSLog(@"location:%@", [NSString stringWithFormat:@"Location: %@

",
                                                                         user.location[@"name"]]);

             }
        }];
        break;
        case FBSessionStateClosed:
        case FBSessionStateClosedLoginFailed:
           [FBSession.activeSession closeAndClearTokenInformation];
        break;
        default:
        break;
       }

   } ];


 }

我使用此代码获取信息，但无法获取任何信息.你能帮我吗?或者你能更喜欢一个教程来阅读它吗?我已阅读 developer.facebook.com 上的教程.

I used this code for get information, but I cannot get the any information. Can you help me about it? or Can you prefer a tutorial to read it? I have read tutorials on developer.facebook.com.

感谢您的关注.

推荐答案

这是我找到的最简单的获取用户头像的方法.

This is the simplest way I've found to get the user's profile picture.

[[FBRequest requestForMe] startWithCompletionHandler:^(FBRequestConnection *connection, NSDictionary<FBGraphUser> *FBuser, NSError *error) {
    if (error) {
      // Handle error
    }

    else {
      NSString *userName = [FBuser name];
      NSString *userImageURL = [NSString stringWithFormat:@"https://graph.facebook.com/%@/picture?type=large", [FBuser objectID]];
    }
  }];

其他可以使用的查询参数有:

Other query parameters that can be used are:

• 类型:小型、普通、大型、方形
• 宽度:<价值 >
• 高度:<价值 >
  • 同时使用 width 和 height 来获得裁剪后的纵横填充图像
  • type: small, normal, large, square
  • width: < value >
  • height: < value >
    • Use both width and height to get a cropped, aspect fill image

    这篇关于从 Facebook iOS 7 获取用户名和个人资料图片的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！