FBSession：尝试重新授权未开放会话的权限 [英] FBSession: an attempt was made reauthorize permissions on an unopened session

问题描述

我正在遵循教程
来实施在Facebook SDK 3.1上的视图预览帖子，但是当我调用这个方法
...

I'm following this tutorial to implement the view preview post on Facebook SDK 3.1, but when I call this method ...

// Ask for publish_actions permissions in context
    if ([FBSession.activeSession.permissions
         indexOfObject:@"publish_actions"] == NSNotFound) {
        // No permissions found in session, ask for it
        [FBSession.activeSession
         reauthorizeWithPublishPermissions:
         [NSArray arrayWithObject:@"publish_actions"]
         defaultAudience:FBSessionDefaultAudienceFriends
         completionHandler:^(FBSession *session, NSError *error) {
             if (!error) {
                 // If permissions granted, publish the story
                 [self publishStory];
             }
         }];
    } else {
        // If permissions present, publish the story
        [self publishStory];
    }

...

返回以下错误：

* 由于未捕获异常终止应用程序com.facebook.sdk： InvalidOperationException'，原因：'FBSession：尝试
重新授权未打开会话的权限'

* Terminating app due to uncaught exception 'com.facebook.sdk: InvalidOperationException', reason: 'FBSession: an attempt was made ​​reauthorize permissions on an unopened session'

什么是发生可以吗？谢谢！

What is happening can? Thank you!

编辑：
让我的朋友非常感谢，但仍然有一个细节...当'第一次他要求授权我的这个应用程序授权这个程序块

Ran my friend, thank you very much, but still have a detail ...When'll post the first time he asks to authorize the application I authorize this block of fall

/ *
*打开一个新的会话与发布权限
* /

/* * open a new session with publish permission */

  [FBSession openActiveSessionWithPublishPermissions:[NSArray arrayWithObject:@"publish_actions"]
                                   defaultAudience:FBSessionDefaultAudienceOnlyMe
                                      allowLoginUI:YES
                                 completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
                                     if (!error && status == FBSessionStateOpen) {
                                         [self publishStory];
                                     }else{
                                         NSLog(@"error");
                                        //Here I get the error mentioned below
                                     }
                                 }];
}

与错误：错误：

domain = com.facebook.sdk，code = 5

domain = com.facebook.sdk, code = 5

推荐答案

错误说FBSession没有打开。所以在尝试重新授权之前，您应该检查会话是否已打开。

The error says that the FBSession is not opened. so you should check if the session is opened before trying to reauthorize.

if ([[FBSession activeSession] isOpen]) {
  /* 
   * if the current session has no publish permission we need to reauthorize 
   */
  if ([[[FBSession activeSession] permissions]indexOfObject:@"publish_actions"] == NSNotFound) {

        [[FBSession activeSession] requestNewPublishPermissions:[NSArray arrayWithObject:@"publish_actions"] defaultAudience:FBSessionDefaultAudienceFriends
                                              completionHandler:^(FBSession *session,NSError *error){
                                                  [self postPhoto];
                                              }];

    }else{
        [self publishStory];
    }
}else{
    /* 
     * open a new session with publish permission 
     */
    [FBSession openActiveSessionWithPublishPermissions:[NSArray arrayWithObject:@"publish_actions"]
                                       defaultAudience:FBSessionDefaultAudienceOnlyMe
                                          allowLoginUI:YES
                                     completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
                                         if (!error && status == FBSessionStateOpen) {
                                             [self publishStory];
                                         }else{
                                             NSLog(@"error");
                                         }
                                     }];
}

确保始终要求相同的权限，应该是 publish_actions （记住复数）。

Make sure to consistently request for the same permissions which should be publish_actions (mind the plural).

这篇关于FBSession：尝试重新授权未开放会话的权限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！