title: How to add MapView in an Activity who already had an "extends"?
body: <p>I'am developping an android application including swipe view with tab.
  All page had his own layout, all of that is working great :D.</p>
  
  <p>But I want add to one of this view a MapView ( from Google API ), so i need to extends my MainActivity ( the only one I have ) to MapActivity, but I can't ( nothing wrong here ):</p>
  
  <pre><code> public class MainActivity extends ActionBarActivity implements ActionBar.TabListener{
  </code></pre>
  
  <p>so is there a way to manage my MapView from MainActivity ?</p>
  
  <p>thanks a lot :)</p>
  
  <p>( sorry for my poor english syntax )</p>