title: UITextfield leftView/rightView padding on iOS7
body: <p>The leftView and rightView views of an UITextField on iOS7 are really close to the textfield border. </p>
  
  <p>How may I add some (horizontal) padding to those items?  </p>
  
  <p>I tried modifying the frame, but did not work </p>
  
  <pre><code>uint padding = 10;//padding for iOS7
  UIImageView * iconImageView = [[UIImageView alloc] initWithImage:iconImage];    
  iconImageView.frame = CGRectMake(0 + padding, 0, 16, 16);
  textField.leftView = iconImageView;
  </code></pre>
  
  <p>Please, note that I'm not interested in adding padding to the textfield's text, like this <a href="https://stackoverflow.com/questions/3727068/set-padding-for-uitextfield-with-uitextborderstylenone">Set padding for UITextField with UITextBorderStyleNone</a></p>