Facebook graph api with native iPhone application - iphone

Question

I want to use the Facebook Graph API in a NATIVE iPhone Application. Has anybody been able to find a way to post images/message on a user's feed?
I have tried all possible ways to post a ‘picture’ (not a URL but a UIImage) on the feed and have been working on this for 2 weeks now.
If you go to facebook.com you can upload a picture from your computer on to the wall. I am using ASIHTTPRequest to work on facebook graph API.
This is the nearest I have gone to posting a picture on the feed. So if I have a ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
The url is https://graph.facebook.com/me/feed
Now to post a picture I do the following:
[request setPostValue:#"My Message" forKey:#"message"];
[request setPostValue:#"somepic.png" forKey:#"picture"];
[request setPostValue:#"Some Name" forKey:#"name"];
[request setPostValue:#"Some description" forKey:#"description];
[request startAsynchronous];
If you try this then everything works fine other than the picture being posted. A blank placeholder for the picture is though show on the feed.

Answer 1

I created a method to help me do this. Hope this is of some help.
Please read the tutorial on how to set up the Facebook SDK.
-(void) updateStatusWithText:(NSString *) fbTitle //Status title
andStoryURL:(NSString *) fbURL //URL for the story
andStory:(NSString *) fbStory //The story
andImage:(NSString *) imageURL //Image to be displayed.
andPrompt:(NSString *) promptString{
NSLog(#"updateStatusWithText");
NSString *attachmentText =[NSString stringWithFormat:#"{\"name\":\"%#\","
"\"href\":\"%#\","
"\"description\":\"%#\","
"\"media\":[{\"type\":\"image\","
"\"src\":\"%#\","
"\"href\":\"%#\"}],"
"\"properties\":{\"Uploaded from an iPhone\":{\"text\":\"AFL Fan\",\"href\":\"Your itunes apstore URL\"}}}", fbTitle, fbURL, fbStory,imageURL,fbURL];
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
promptString, #"user_message_prompt",
// actionLinksStr, #"properties",
attachmentText, #"attachment",
nil];
NSLog (#"attachmentText : %#", attachmentText);
[facebook dialog:#"stream.publish"
andParams:params
andDelegate:self];
}