ShareKit share facebook stream with image (Stream Attachments)

HowToUse.m

    NSString *title = @"Sed adipiscing ornare risus. Morbi est est, blandit sit amet, sagittis vel, euismod vel, velit. Pellentesque egestas sem. Suspendisse commodo ullamcorper magna.";
    NSString *imageURL = @"http://img.chinaluxus.com/pic/spts/2011/05/19/20110519080415136.jpg";
    NSURL *url = [NSURL URLWithString:@"http://example.com"];
    
    SHKItem *item = [SHKItem URL:url title:title];
    [item setCustomValue:imageURL forKey:FBImageURL];
    [SHKFacebook shareItem:item];

SHKFacebook.h

#define FBImageURL @"FBImageURL"

SHKFacebook.m

- (BOOL)send
{			
	if (item.shareType == SHKShareTypeURL)
	{
		self.pendingFacebookAction = SHKFacebookPendingStatus;
		
		SHKFBStreamDialog* dialog = [[[SHKFBStreamDialog alloc] init] autorelease];
		dialog.delegate = self;
		dialog.userMessagePrompt = SHKLocalizedString(@"Enter your message:");
        
        // hack for facebook steam with image
        if ([item customValueForKey:FBImageURL]!=nil) {
            
            NSURL *imageURL = [NSURL URLWithString:[item customValueForKey:FBImageURL]];
            dialog.attachment = [NSString stringWithFormat:
                                 @"{\
                                 \"name\":\"%@\",\
                                 \"href\":\"%@\",\
                                 \"media\":[{\"type\":\"image\",\"src\":\"%@\",\"href\":\"%@\"}]\
                                 }",
                                 item.title == nil ? SHKEncodeURL(item.URL) : SHKEncode(item.title),
                                 SHKEncodeURL(item.URL),
                                 SHKEncodeURL(imageURL),
                                 SHKEncodeURL(item.URL) 
                                 
                                 ];
        } else {
            dialog.attachment = [NSString stringWithFormat:
                                 @"{\
                                 \"name\":\"%@\",\
                                 \"href\":\"%@\"\
                                 }",
                                 item.title == nil ? SHKEncodeURL(item.URL) : SHKEncode(item.title),
                                 SHKEncodeURL(item.URL)
                                 ];
        }
        
		dialog.defaultStatus = item.text;
		dialog.actionLinks = [NSString stringWithFormat:@"[{\"text\":\"Get %@\",\"href\":\"%@\"}]",
							  SHKEncode(SHKMyAppName),
							  SHKEncode(SHKMyAppURL)];
		[dialog show];
		
	}
	
	else if (item.shareType == SHKShareTypeText)
	{
		self.pendingFacebookAction = SHKFacebookPendingStatus;
		
		SHKFBStreamDialog* dialog = [[[SHKFBStreamDialog alloc] init] autorelease];
		dialog.delegate = self;
		dialog.userMessagePrompt = SHKLocalizedString(@"Enter your message:");
		dialog.defaultStatus = item.text;
		dialog.actionLinks = [NSString stringWithFormat:@"[{\"text\":\"Get %@\",\"href\":\"%@\"}]",
							  SHKEncode(SHKMyAppName),
							  SHKEncode(SHKMyAppURL)];
		[dialog show];
		
	}
	
	else if (item.shareType == SHKShareTypeImage)
	{		
		self.pendingFacebookAction = SHKFacebookPendingImage;
		
		FBPermissionDialog* dialog = [[[FBPermissionDialog alloc] init] autorelease];
		dialog.delegate = self;
		dialog.permission = @"photo_upload";
		[dialog show];		
	}
	
	return YES;
}