从Facebook iOS 7获取用户名和个人资料照片 [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，但是迄今为止我已经失败了。我只想从Facebook获取用户名和个人资料照片。

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: %@\n\n",
                                                                         user.location[@"name"]]);

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

   } ];


 }

我用这个代码获取信息，但我无法得到任何信息。你可以帮我吗？或者你可以更喜欢教程阅读吗？我读了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

这是我找到获取用户个人资料照片的最简单的方法。

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]];
    }
  }];

可以使用的其他查询参数是：

Other query parameters that can be used are:

• 类型：小，正常，大，平方


• 宽度值>


• 高度：<值>
  
  
  
  • 同时使用宽度和高度来获取裁剪的方面填充图像
  
  
  • 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照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！