title: How to add actionbar to an default Google Maps API in Android Studio?
body: <p>I just created an Google Maps activity by selecting the default Google Maps Activity. However, I found that there is no actionbar on the top. </p>
  
  <pre><code>public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
  </code></pre>
  
  <p>My question is how to add an actionbar to it. Do I have to change the extends from FragmentActivity to AppCompatActivity? I am very new to Android, please explain using the most basic languages.</p>