title: lifecycle function are not getting called on back button press
body: <p>I'm trying to use code from <a href="http://developer.android.com/training/animation/screen-slide.html" rel="nofollow">This Link</a> creating multiple fragment wizard page. On the first fragment there is <code>EditText and Next Button</code>. On clicking Next Button, I'm disabling these controls and then navigating to 2nd fragment(page).</p>
  
  <p>Now when I press back button using the below code</p>
  
  <pre><code>mPager.setCurrentItem(mPager.getCurrentItem() - 1);
  </code></pre>
  
  <p>Fragment get changed back to first activity. But the EditText and Next Button are still disable.</p>
  
  <p>I want to enable these button on back button clicking. But not getting any call in the overridden  <code>onResume()</code>, <code>onStart()</code>, <code>onViewStateRestored()</code> function of FirstFragment class.</p>