iOS上的Facebook连接 - 图片不显示墙贴 [英] Facebook Connect on iOS - Picture doesn't display with wall post

问题描述

我已经使用Facebook提供的演示项目与我的应用程序建立了Facebook连接。一切都很好，除了最后一个小步骤...

• 首先，我登录并获得权限。




• 接下来，我上传了一张照片。这很好，我可以看到我的Facebook相册中的图片，就像我应该能够。




• 当这张图片上传时，我得到它的URL由FBRequest代表）。将此网址复制到网页浏览器中，可以直接将图片提供给我，因此我知道这个网址是正确的。

以下是问题所在：

• 我现在想在墙上贴上这张照片。墙上的帖子很好，但图片似乎没有附加，状态作为纯文本留言。

这是我最后一部分使用的代码：

   - （void）request（（FBRequest *）request didLoad :( id）result {
 
 NSString * picUrl = [result objectForKey：@src_big]; //这绝对返回正确的URL 
 
 if（picUrl）
 {
 NSString * message = @测试状态; 
 NSMutableDictionary * params = [NSMutableDictionary dictionaryWithObjectsAndKeys：
 message，@message，picUrl，@picture，@看我的照片，@name，nil]; 
 
 [facebook requestWithMethodName：@facebook.Stream.publishandParams：params 
 andHttpMethod：@POSTandDelegate：self]; 
} 
} 
  

任何想法我失踪或做错了？

解决方案

使用以下代码修复（经过大量失败的尝试）。 Facebook不喜欢我尝试的方式，您只需一步就可以完成所有操作：

  NSData * imageData = UIImagePNGRepresentation（image）; 
 
 NSMutableDictionary * params = [NSMutableDictionary dictionaryWithObjectsAndKeys：
 @Test message，@message，imageData，@source，nil]; 
 
 [facebook requestWithGraphPath：@/ me / photosandParams：params andHttpMethod：@POSTandDelegate：self]; 
  

I've set up Facebook connect with my app using the demo project provided by Facebook. Everything works great, except for the last little step...

• First of all, I login and get permissions.

• Next, I upload a picture. This works great, I can see the picture in my Facebook album like I should be able to.

• When this picture is uploaded, I get it's URL (returned by the FBRequest delegate). Copy pasting this URL into a web browser takes me directly to the image, so I know that this URL is correct.

Here's where the problem is:

• I now want to present this picture alongside a wall post. The wall post is fine, but the picture just doesn't seem to attach and the status is left as a plain text message.

Here's the code I'm using for the last part:

- (void)request:(FBRequest *)request didLoad:(id)result {

    NSString* picUrl = [result objectForKey:@"src_big"];  //this definitely returns the right URL

    if (picUrl)
    {
        NSString *message = @"Test status";
        NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                       message, @"message", picUrl, @"picture", @"Look at my photo", @"name", nil];

        [facebook requestWithMethodName:@"facebook.Stream.publish" andParams:params
                          andHttpMethod:@"POST" andDelegate:self];
    }
}

Any ideas what I'm missing or doing wrong?

解决方案

Fixed with the following code (after a lot of failed attempts). Facebook doesn't like the way I was trying it, you've got to do it all in just one step:

NSData *imageData = UIImagePNGRepresentation(image);

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               @"Test message", @"message", imageData, @"source", nil];

[facebook requestWithGraphPath:@"/me/photos" andParams:params andHttpMethod:@"POST" andDelegate:self];

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