title: Android menu and action bar conversion
body: <p>There is a new concept in Android:</p>
  
  <p><a href="http://android-developers.blogspot.com/2012/01/say-goodbye-to-menu-button.html" rel="noreferrer">http://android-developers.blogspot.com/2012/01/say-goodbye-to-menu-button.html</a></p>
  
  <p>But it isn't clear fro me. I have an application which is support from 1.6 to 4.0. And I want to follow the new concept, but I can't set showAsAction property in the menu xml because:</p>
  
  <p>"No resource identifier found for attribute 'showAsAction' in package 'android'"</p>
  
  <p>It's normal because there is in the doc:</p>
  
  <p>"Note: The android:showAsAction attribute is available only on Android 3.0 (API Level 11) and greater."</p>
  
  <p>How can I set the menu, that under 3.0 is a simple menu but over 3.0 as an ActionBar?</p>