title: Xcode iPad UIActionSheet with many buttons do not correctly displayed iOS7
body: <p>On the iPad new ios 7 UIActionSheet is not correctly displayed with lots of buttons.</p>
  
  <p>Not cleaning background of UIActionSheet on scrolling. The buttons seem frozen in background UIActionSheet.</p>
  
  <p><a href="http://macon.com.ua/32232323.jpg" rel="noreferrer">screenshot with problem</a></p>
  
  <p>My code :</p>
  
  <pre><code>UIActionSheet *popupQuery = [[UIActionSheet alloc]; 
  for (int i=0; i&lt;[ParamAllList count]; i++) 
  { 
      NSMutableDictionary *Param = [ParamAllList objectAtIndex:i]; 
      [popupQuery addButtonWithTitle:[Param valueForKey:@"name"]]; 
      [[[popupQuery valueForKey:@"_buttons"] objectAtIndex:[[popupQuery valueForKey:@"_buttons"] count]-1] setImage:[UIImage imageNamed:@"add40icon.png"] forState:UIControlStateNormal];
  } 
  popupQuery.actionSheetStyle = UIActionSheetStyleAutomatic; 
  [popupQuery showFromRect:Button_Settings.frame inView:Button_Settings.superview animated:YES];
  </code></pre>