title: Facebook iOS SDK Dialog parameters
body: <p>This is probably a n00b question, but nontheless... I have a bit of a problem using the Facebook SDK in my iPad app: when I display a dialog using <code>[facebook dialog:@"feed" andDelegate:self];</code> I don't see any way I can change the title, the content or the URL of what I want to share.</p>
  
  <p>In their Demo App, Facebook has the following code:</p>
  
  <pre><code>- (IBAction)publishStream:(id)sender {
  
    SBJSON *jsonWriter = [[SBJSON new] autorelease];
  
    NSDictionary* actionLinks = [NSArray arrayWithObjects:[NSDictionary 
    dictionaryWithObjectsAndKeys: @"Always Running",@"text",@"http://itsti.me/",
                                  @"href", nil], nil];
  
    NSString *actionLinksStr = [jsonWriter stringWithObject:actionLinks];
    NSDictionary* attachment = [NSDictionary dictionaryWithObjectsAndKeys:
                                 @"a long run", @"name",
                                 @"The Facebook Running app", @"caption",
                                 @"it is fun", @"description",
                                 @"http://itsti.me/", @"href", nil];
    NSString *attachmentStr = [jsonWriter stringWithObject:attachment];
    NSMutableDictionary* params = [NSMutableDictionary
                                   dictionaryWithObjectsAndKeys:
                                   @"Share on Facebook",  @"user_message_prompt",
                                   actionLinksStr, @"action_links",
                                   attachmentStr, @"attachment",
                                   nil];
  
  
    [_facebook dialog:@"feed"
            andParams:params
          andDelegate:self];
  
  }
  </code></pre>
  
  <p>However, when I press the publishStream button, none of those strings shows on the dialog! :S</p>
  
  <p>Is there something I'm not doing right? all I changed in that Demo App was the Facebook kAppId and the URL Scheme.</p>