Question

我想在Facebook上发布/分享图片。首先，我使用以下方式获取发布权限：

        NSArray *permissionsNeeded = @[@"publish_actions"];
        [FBRequestConnection startWithGraphPath:@"/me/permissions"
                              completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                                  if (!error){
                                      NSDictionary *currentPermissions= [(NSArray *)[result data] objectAtIndex:0];
                                      NSMutableArray *requestPermissions = [[NSMutableArray alloc] initWithArray:@[]];

                                      for (NSString *permission in permissionsNeeded){
                                          if (![currentPermissions objectForKey:permission]){
                                              [requestPermissions addObject:permission];
                                          }
                                      }

                                      if ([requestPermissions count] > 0){
                                          [FBSession.activeSession requestNewPublishPermissions:requestPermissions
                                                                                defaultAudience:FBSessionDefaultAudienceFriends
                                                                              completionHandler:^(FBSession *session, NSError *error) {
                                                                                  if (!error) {
                                                                                      [self shareDataOnFacebook];
                                                                                  } else {
                                                                                      NSLog(@"%@", error.description);
                                                                                  }
                                                                              }];
                                      } else {
                                          [self shareDataOnFacebook];
                                      }

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

如果我NSLog会话，我得到了这个：

FBSessionStateOpenTokenExtended，loginHandler：0x15eab870，appID：719202928131376，urlSchemeSuffix：，tokenCachingStrategy：，expirationDate：4001-01-01 00:00:00 +0000，refreshDate：2014-05-10 12:57:41 + 0000，attemptsRefreshDate：0001-12-30 00:00:00 +0000，权限:( 状态，允许，＆＃34; publish_actions＆＃34; ）＆GT;

现在，如果我尝试使用以下方式发布图片：

NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                       @"{image-url}", @"url",
                       nil
                   ];
/* make the API call */
[FBRequestConnection startWithGraphPath:@"/me/photos"
                         parameters:params
                         HTTPMethod:@"POST"
                  completionHandler:^(
                      FBRequestConnection *connection,
                      id result,
                      NSError *error
                  ) {
                      /* handle the result */
                  }];

我收到错误：

错误Domain = com.facebook.sdk Code = 5＆＃34;操作无法完成。（com.facebook.sdk错误5。）＆＃34; UserInfo = 0x15e4f370 {com.facebook.sdk：HTTPStatusCode = 403，com.facebook.sdk：ParsedJSONResponseKey = { body = { error = { 代码= 200; message =＆＃34;（＃200）权限错误＆＃34 ;; type = OAuthException; }; }; code = 403; }，com.facebook.sdk：ErrorSessionKey =，expirationDate：4001-01-01 00:00:00 +0000，refreshDate：2014-05-10 12:57:41 +0000，attemptsRefreshDate：0001-12-30 00： 00:00 +0000，权限:( 状态，允许，＆＃34; publish_actions＆＃34; ）＆GT;}

甚至，如果我再次获得权限，＆＃34; publish_actions＆＃34;不在列表中。请指导我做错了什么。

是否有其他方式与描述共享/发布图片（没有任何链接，这是共享对话所必需的）？

Answer 1

经过几个小时的敲打，我想通了。您似乎需要进入developers.facebook.com上的“状态和审核”下的应用设置，并请求您的应用发布权限。如果您只需要测试它，您可以转到Roles并添加您尝试以应用程序的开发人员身份登录的Facebook用户。

Answer 2

这对我有用。

NSArray *requestPermission = @[@"publish_actions"];
        // Open session with public_profile
        [FBSession openActiveSessionWithPublishPermissions:requestPermission defaultAudience:FBSessionDefaultAudienceEveryone allowLoginUI:YES
                                      completionHandler:
         ^(FBSession *session, FBSessionState state, NSError *error) {
             if (!error){
                 // If the session was opened successfully
                 if (state == FBSessionStateOpen){
                     // Your code here
                      NSLog(@"session opened");
                     [self postToFacebook];

                 } else {
                     // There was an error, handle it
                     NSLog(@" error on opening session = %@",error);
                 }
             }
         }];





-(void)postToFacebook{
NSLog(@"post to facebook");
// Put together the dialog parameters
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               @"Sharing Tutorial", @"name",
                               @"Build great social apps and get more installs.", @"caption",
                               @"Allow your users to share stories on Facebook from your app using the iOS SDK.", @"description",
                               @"https://developers.facebook.com/docs/ios/share/", @"link",
                               @"http://i.imgur.com/g3Qc1HN.png", @"picture",
                               nil];

// Make the request
[FBRequestConnection startWithGraphPath:@"/me/feed"
                             parameters:params
                             HTTPMethod:@"POST"
                      completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                          if (!error) {
                              // Link posted successfully to Facebook
                              NSLog(@"result: %@", result);
                          } else {
                              // An error occurred, we need to handle the error
                              // See: https://developers.facebook.com/docs/ios/errors
                              NSLog(@"%@", error.description);
                          }
                      }];

}

使用iOS SDK在Facebook上发布描述图片

2 个答案: