不能得到FBGraphUser电子邮件 [英] Cant get FBGraphUser email

问题描述

我的应用程序使用Facebook登录。 （Facebook iOS SDK版本3.11.1）

我要求电子邮件许可：

  NSArray * permissions = [NSArray arrayWithObjects：@basic_info，@email，nil]; 
  

大部分时间，我收到用户的电子邮件：

  NSString * email = [user objectForKey：@email]; 
 // user is（NSDictionary< FBGraphUser> *）
  

有时我只是不。 （我可以看到NSDictionary不包括电子邮件）。

我正在使用此修复程序，所以当我以后使用电子邮件时，应用程序不会终止，它的nil： / p>

  NSString * email = [user objectForKey：@email]？ [user objectForKey：@email]：@NO_EMAIL; 
  

但是我需要真正的邮件，所以我必须提出一个新的解决方案。
我没有注意到有问题的用户特别的东西。
任何想法可能是什么问题？

解决方案

似乎它是一个众所周知的问题...对于许多原因不是Facebook上的所有人都注册了电子邮件地址。

但正如我所说，我的问题是我需要一个真正的邮件。
所以最简单的解决方案是使用用户的Facebook电子邮件：[e-mail]

  NSString * email = [ user objectForKey：@email]？ [user objectForKey：@email]：[NSString stringWithFormat：@％@@ facebook.com，user.username]; 
  

• 某些链接指向您无法将HTML电子邮件发送到Facebook邮件，只有纯文本！

I use Facebook login with my app. (Facebook iOS SDK version 3.11.1)

I ask for "email" permission:

NSArray *permissions = [NSArray arrayWithObjects: @"basic_info", @"email", nil];

Most of the time, I do get the user's email like that:

NSString *email = [user objectForKey:@"email"];
//user is (NSDictionary<FBGraphUser> *)

Sometimes I just don't. (I can see that the NSDictionary is not including email).

I am using this fix so the app won't terminate when i use email later and its nil:

NSString *email = [user objectForKey:@"email"] ? [user objectForKey:@"email"] : @"NO_EMAIL";

But i need the real mail, so i have to come up with a new solution. I haven't noticed something special with the problematic users. Any ideas what can be the problem?

解决方案

It appears that its a well known problem... For many reasons, not everyone on Facebook have Email address registered.

But as i said, my problem is that i need a real mail. So the simplest solution is to use the user's Facebook Email : [e-mail]

NSString *email = [user objectForKey:@"email"] ? [user objectForKey:@"email"] : [NSString stringWithFormat:@"%@@facebook.com", user.username];

• some links ref to that you can't sent HTML emails to the Facebook mail, only plain text!

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