title: PresentViewController: animated not displaying on iPad
body: <p>I am integrating <code>SLService</code> for <code>Twitter</code> into an application. It works great on iPhone but disappears on iPad. </p>
  
  <p>I have integrated on the iPad:</p>
  
  <pre><code>  [actionSheet showFromRect:self.myRect inView:self.tableView animated:YES];
  </code></pre>
  
  <p>rather than:</p>
  
  <pre><code> [actionSheet showInView:[UIApplication sharedApplication].keyWindow];
  </code></pre>
  
  <p>Is there a similar method for the iPad in lieu of <code>presentViewContoller: Animated:</code>?</p>
  
  <pre><code>    if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
      {
          SLComposeViewController *tweetSheet = [SLComposeViewController
                                                 composeViewControllerForServiceType:SLServiceTypeTwitter];
          [tweetSheet setInitialText:self.textForTweet];
  
          [self presentViewController:tweetSheet animated:YES completion:nil];
      } else [self displayAlertBoxWithTitle:@"Tweet Failed" message:@"Please try again later" cancelButton:@"Close"];
  }
  </code></pre>
  
  <p>Should I be using a Modal dialog instead?</p>