title: How to remove background image to a button
body: <p>I added 10 buttons to a view (example view name is "menuView"), now I want to remove the background image for 2nd, 3rd, 4th buttons. I wrote the code like this</p>
  
  <pre><code>for(id btn in [menuView subViews]){
  
         [btn setBackgroundImage:nil forState:UIControlStateNormal];
  
   }
  </code></pre>
  
  <p>The problem with this code is, it is removing all 10 button's backGroundimage, but I need to set <code>nil</code> for the 2nd, 3rd, and 4th buttons </p>