title: Adjust image on UIButton
body: <p>I have custom button, with an image that I'd like to shift down within the button. I don't want to mess with the clickable portion of the button, but just want the image moved. I've tried adjusting button.imageview.frame, but it didn't seem to do anything.</p>
  
  <p>Here's my code:</p>
  
  <pre><code>UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
  button.frame = CGRectMake(0.0, 0.0, 25.0, 25.0);
  UIImage *buttonOnImage = [@"tabbar_icon_0"];
  
  [button setImage:buttonOnImage forState:UIControlStateHighlighted];
  [button setImage:buttonOnImage forState:UIControlStateSelected];
  </code></pre>