title: How to monitor the tap event of items under tabbarcontroller->More?
body: <p>I'm using a <code>UITabbarController</code>, and added 10 <code>UINavigationController</code> into the subviews, so, some of the <code>UINavigationController</code>s would be in "More" controller.</p>
  
  <p>The problem is, delegate method <code>tabBarController:shouldSelectViewController:</code> doesn't apply to the <code>UINavigationController</code>s in "More".</p>
  
  <p>Now, I want to do something (show a modal view controller) when the items in "More" is tapped. What should I do?</p>
  
  <p>Appreciate for any tips.</p>