没有使用Facebook 4.4.0 SDK获取电子邮件和公开个人资料 [英] Not getting Email and public profile using Facebook 4.4.0 SDK

问题描述

我目前正在使用Facebook SDK 4.4.0。 4.4.0版本之前，在4.3.0中，我们收到了以下代码的public_profile电子邮件：

  NSArray * arrFBPermission = [[ NSArray alloc] initWithObjects：@email，@public_profile，nil]; 
 [loginUsingFB logInWithReadPermissions：arrFBPermission handler：^（FBSDKLoginManagerLoginResult * result，NSError * error）{
 [[FBSDKGraphRequest alloc] initWithGraphPath：@me参数：nil] startWithCompletionHandler：^（FBSDKGraphRequestConnection * id result，NSError * error）{
 if（！error）{
 NSString * fnm = [result valueForKey：@first_name]; 
 NSString * lnm = [result valueForKey：@last_name]; 
} 
 else {
 Nslog（％@，error localizedDescription）; 
} 
}]; 
} 
  

现在在新的SDK（即4.4.0）我没有得到这些值。为什么？我想要从Facebook的电子邮件，first_name，last_name，id。

解决方案

使用Facebook 4.4 SDK有一点点变化。
您必须使用您想从Facebook帐户的 FBSDKGraphRequest 请求参数。

您的代码中有 nil 参数：

使用以下参数更新代码：

  [[FBSDKGraphRequest alloc] initWithGraphPath：@me参数：@ {@fields：@id，name，link，first_name， last_name，picture.type（large），email，birthday，bio，location，friends，hometown，friendlists}] 
  

如果要使用自定义按钮登录Facebook，则可以使用完整的代码如下：

   - （IBAction）btnFacebookPressed：（id）sender {
 FBSDKLoginManager * login = [[FBSDKLoginManager alloc] init]; 
 login.loginBehavior = FBSDKLoginBehaviorBrowser; 
 [login logInWithReadPermissions：@ [@email] handler：^（FBSDKLoginManagerLoginResult * result，NSError * error）
 {
 if（error）
 {
 / /进程错误
} 
 else if（result.isCancelled）
 {
 //处理取消
} 
 else 
 {
 if（[result.grantedPermissions containsObject：@email]）
 {
 NSLog（@result is：％@，result）; 
 [self fetchUserInfo]; 
 [login logOut]; // Only如果您不想保存当前应用程序的会话
} 
} 
}]; 
} 
  - （void）fetchUserInfo 
 {
 if（[FBSDKAccessToken currentAccessToken]）
 {
 NSLog（@令牌可用：％@ ，[[FBSDKAccessToken currentAccessToken] tokenString]）; 
 
 [[FBSDKGraphRequest alloc] initWithGraphPath：@me参数：@ {@fields：@id，name，link，first_name，last_name，picture.type（large），email }] 
 startWithCompletionHandler：^（FBSDKGraphRequestConnection * connection，id result，NSError * error）{
 if（！error）
 {
 NSLog（@resultis：％@，结果）; 
 
} 
 else 
 {
 NSLog（@Error％@，error）; 
} 
}]; 
} 
} 
  

我希望它能为您服务。 >

I am currently working on Facebook SDK 4.4.0. Before 4.4.0 version, in 4.3.0 we were getting email, public_profile with the following code

NSArray *arrFBPermission = [[NSArray alloc]initWithObjects:@"email",@"public_profile", nil];
    [loginUsingFB logInWithReadPermissions:arrFBPermission handler:^(FBSDKLoginManagerLoginResult *result, NSError *error){ 
[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:nil] startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error){
                      if (!error){
                          NSString *fnm = [result valueForKey:@"first_name"];
                          NSString *lnm = [result valueForKey:@"last_name"];
                      }
else{
     Nslog("%@", error localizedDescription);
}
                  }];
}

Now in the New SDK (i.e. 4.4.0) I am not getting these values. Why? I want email, first_name, last_name, id from Facebook.

解决方案

With Facebook 4.4 SDK there is a slight change. You must have to request the parameter with the FBSDKGraphRequest which you want from Facebook account.

In your code there is nil in parameters :

Update your code with the parameters like as :

[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"id, name, link, first_name, last_name, picture.type(large), email, birthday, bio ,location , friends ,hometown , friendlists"}]

If you want to login with Facebook with the use of Custom Button then you can use the complete code as follows :

- (IBAction)btnFacebookPressed:(id)sender {
    FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
    login.loginBehavior = FBSDKLoginBehaviorBrowser;
    [login logInWithReadPermissions:@[@"email"] handler:^(FBSDKLoginManagerLoginResult *result, NSError *error)
     {
         if (error)
         {
             // Process error
         }
         else if (result.isCancelled)
         {
             // Handle cancellations
         }
         else
         {
             if ([result.grantedPermissions containsObject:@"email"])
             {
                 NSLog(@"result is:%@",result);
                 [self fetchUserInfo];
                 [login logOut]; // Only If you don't want to save the session for current app
             }
         }
     }];
}
-(void)fetchUserInfo
{
    if ([FBSDKAccessToken currentAccessToken])
    {
        NSLog(@"Token is available : %@",[[FBSDKAccessToken currentAccessToken]tokenString]);

        [[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"id, name, link, first_name, last_name, picture.type(large), email"}]
         startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
             if (!error)
             {
                 NSLog(@"resultis:%@",result);

             }
             else
             {
                 NSLog(@"Error %@",error);
             }
         }];
    }
}

I hope it will work for you.

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