使用ios SDK 3.1发布到墙上的简单方法

Question

我刚刚开始使用SDK iOS 3.1的新应用程序,我注意到现在读取和写入权限是分开的.

我正在寻找一种发布到用户墙的简单方法,但我对授权机制感到困惑

如果我可以在openActiveSessionWithReadPermissions的CompletionHandler中写入权限,我会收到以下错误

*** Terminating app due to uncaught exception 'com.facebook.sdk:InvalidOperationException', reason: 'FBSession: It is not valid to reauthorize while a previous reauthorize call has not yet completed.'

completionHandler听起来像已完成的动作,所以我不明白这段代码的问题是什么.

有什么建议 ？

-(void)askWritePerms
{
NSArray *permissions = [NSArray arrayWithObjects:@"publish_actions", nil];

[[FBSession activeSession] reauthorizeWithPublishPermissions:permissions
                           defaultAudience:FBSessionDefaultAudienceFriends
                         completionHandler:^(FBSession *session, NSError *error) {


  }];

}


 - (IBAction)publishFB:(id)sender
 {


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

       [FBSession openActiveSessionWithReadPermissions:permissions
                                   allowLoginUI:YES
                              completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
                            [self askWritePerms];

                     }

Answer 1

For publishing in wall in facebook use the following code
[[FBSession activeSession] reauthorizeWithPublishPermissions:@[ @"publish_stream",@"publish_actions" ] defaultAudience:FBSessionDefaultAudienceEveryone completionHandler:^(FBSession *authSession, NSError *authError) {

            // If auth was successful, create a status update FBRequest
            if (!authError) {
 NSMutableDictionary* photosParams = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                                     imageurl,@"source",
                                                     urlstring,@"link",@"Appname",@"name",@"Your app description",@"description",
                                                     nil];


                [FBRequestConnection startWithGraphPath:@"me/feed" parameters:photosParams HTTPMethod:@"POST" completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                if (error)
                {
                    [self showAlert:@"Connection Error...Try Again"];
}
       }];
            }
            }];