title: Left-align image and center text on UIButton
body: <p>I've seen posts regarding right alignment but I can't get left-alignment to work.  I want the button to take up the width of the screen, with the image on the left and the title/text in the center.</p>
  
  <p>This does not work (at least reliably):</p>
  
  <pre><code>    button.titleLabel.textAlignment = UITextAlignmentCenter;
      [button setImageEdgeInsets:UIEdgeInsetsMake(0, -60.0, 0, 0)];
      button.frame = CGRectMake((self.view.frame.size.width - w ) / 2, self.view.frame.size.height - 140.0,  self.view.frame.size.width - 10.0, 40.0);
  </code></pre>