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我必须在我的应用程序中使用从 v3.x 到 v4.x 的 Facebook SDK 替换。当它使用旧 sdk 和下一个代码时：

NSString *msg = [NSString stringWithFormat:@"%@\n%@\n%@", petition.petition_name, petition.recipient, petition.content];
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                        msg, @"message",
                        petition.uri ? petition.uri : [NSURL URLWithString:SITE], @"link",
                        nil
                        ];

NSLog(@"%@\n%@", msg, params);

[FBRequestConnection startWithGraphPath:@"me/feed"
                             parameters:params
                             HTTPMethod:@"POST"
                      completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                          .  .  .  .  
                      }];

分享帖子时字符串变量msg传递文本消息：

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在 Facebook SDK 4.x 中有一个特殊的对话框，它没有任何字段或功能用于此类任务。我使用下一个代码（即使使用 og:- params - 即使我尝试过 og:message），但我的帖子出现时没有任何消息：

   FBSDKSharePhoto *photo = [[FBSDKSharePhoto alloc] init];
 photo.image = [self.pdata.imagesArr firstObject];
 // Optionally set user generated to YES only if this image was created by the user
 // You must get approval for this capability in your app's Open Graph configuration
 // photo.userGenerated = YES;

 NSString *urlStr = [NSString stringWithFormat:@"%@/api/images/%@?width=%f&height=%f&x=0&y=0&resize=1", K_BASE_URL, [[self.pdata.imagesArr firstObject] image_id], K_PETITION_IMAGE_WIDTH, K_PETITION_IMAGE_HEIGHT];

 // Create an object
 NSDictionary *properties = @{
 @"og:type": @"books.book",
 @"og:title": self.pdata.petition_name,
 @"og:description": self.pdata.content,
 @"og:image": urlStr,
 @"og:url": [NSURL URLWithString:self.pdata.uri],
 @"og:message": @"QQQQQQQWW",
 @"books:isbn": @"0-553-57340-3",
 };
 FBSDKShareOpenGraphObject *object = [FBSDKShareOpenGraphObject objectWithProperties:properties];

 // Create an action
 FBSDKShareOpenGraphAction *action = [[FBSDKShareOpenGraphAction alloc] init];
 action.actionType = @"books.reads";
 [action setObject:object forKey:@"books:book"];


 // Create the content
 FBSDKShareOpenGraphContent *content = [[FBSDKShareOpenGraphContent alloc] init];
 content.action = action;
 content.previewPropertyName = @"books:book";

 [FBSDKShareDialog showFromViewController:self
 withContent:content
 delegate:nil];

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此消息只能从系统 facebook 对话框 ShareDialog 传递到墙上，但用户必须手动输入消息：

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所以我有两个问题：

1) 即使没有这个 FBSDKShareDialog，我也可以分享我的帖子吗？可能吗？

2）如果 first == false - 如何以编程方式通过对话框传递消息？

提前致谢！

4

1 回答 1

3

将以下代码添加到您的应用中：

FBSDKShareOpenGraphAction *action = [[FBSDKShareOpenGraphAction alloc] init];
[action setString:message forKey: @"message"];  // This is the key point!
于 2016-01-13T09:53:56.743 回答