使用Facebook iOS SDK 3.5向图形API发布自定义故事

Question

在iOS Facebook SDK 3.5中，据说有一种方法可以使用open graph API创建新故事，而无需后端服务器。

在Facebook.com上的文档/教程只显示如何使用后端服务器完成，并且在互联网上似乎没有工作代码，我可以找到如何这样做。

我已经设法把下面的代码基于代码的小片段，但它不工作:

NSMutableDictionary<FBOpenGraphObject> *event = [FBGraphObject openGraphObjectForPost];
            event[@"type"] = @"leaf-events:event";
            event[@"title"] = @"Adam's Birthday";
            NSMutableDictionary<FBGraphObject> *action = [FBGraphObject openGraphActionForPost];
            action[@"event"] = event;
            [FBRequestConnection startForPostWithGraphPath:@"me/leaf-events:create"
                                               graphObject:action
                                         completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                                             NSLog(@"Result: %@", result);
                                             NSLog(@"Error: %@", error.userInfo);
                                         }];

这段代码崩溃了，告诉我:

2013-06-19 19:40:01.451 Events[1150:60b] Error: {
"com.facebook.sdk:ErrorSessionKey" = "<FBSession: 0x1650fe80, state: FBSessionStateOpen, loginHandler: 0x1651dc20, appID: 474218799329968, urlSchemeSuffix: , tokenCachingStrategy:<FBSessionTokenCachingStrategy: 0x16549810>, expirationDate: 4001-01-01 00:00:00 +0000, refreshDate: 2013-06-19 18:39:57 +0000, attemptedRefreshDate: 0001-12-30 00:00:00 +0000, permissions:(n    "basic_info"n)>";
"com.facebook.sdk:HTTPStatusCode" = 400;
"com.facebook.sdk:ParsedJSONResponseKey" =     {
    body =         {
        error =             {
            code = 3503;
            message = "(#3503) "{"type":"leaf-events:event","data":{},"title":"Adam's Birthday","fbsdk:create_object":true}" is an invalid value for property "event" with type "Reference"";
            type = OAuthException;
        };
    };
    code = 400;
};
}

谁能帮助我，并提供示例代码如何做这个看似简单的任务，我已经坚持了2天了!

Answer 1

我知道这是一个老问题-但仍然没有好的答案-所以我希望能帮助smb。创建对象:

- (NSDictionary *)sharingDictionaryForXXX {
   return @{
    @"type" : @"app_namespace:object_name",
    @"fbsdk:create_object" : @YES,
    @"title" : "title text",
    @"url" : @"link to your site configured in app dashboard",
    @"image" : @"https://fbstatic-a.akamaihd.net/images/devsite/attachment_blank.png",
    @"description" : "your description",
   };
}

分享:

  id<FBOpenGraphAction> action = [FBGraphObject openGraphActionForPost];
  action[@"object_name"] = [self sharingDictionaryForXXX];
  FBOpenGraphActionShareDialogParams * params = [[FBOpenGraphActionShareDialogParams alloc] init];
  params.actionType = @"app_namespace:action_name";
  params.action = action;
  params.previewPropertyName = @"object_name";
  // Show the Share dialog if available
  if ([FBDialogs canPresentShareDialogWithOpenGraphActionParams:params]) {
     [FBDialogs presentShareDialogWithOpenGraphAction:[params action]
                                           actionType:[params actionType]
                                  previewPropertyName:[params previewPropertyName]
                                              handler:^(FBAppCall * call, NSDictionary * results, NSError * error) {
                                                 if (error) {
                                                    NSLog(@"Error: %@", error);
                                                 } else {
                                                    NSLog(@"Success!");
                                                 }
                                              }];
  } else {
     // If the Facebook app isn't available, show the Feed dialog as a fallback
     [self presentWebBasedSharing];
  }