title: Android ActionBar not showing
body: <p>After following the instructions here:
  <a href="http://developer.android.com/training/appbar/setting-up.html" rel="nofollow noreferrer">http://developer.android.com/training/appbar/setting-up.html</a></p>
  
  <p>The appbar is still not showing, as we can see here:
  <a href="https://i.stack.imgur.com/wXLDj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wXLDj.png" alt="No Action Bar"></a></p>
  
  <p>However, I assume the Toolbar exists in the program, since I don't get any NullPointException on the places where the program used to crash. So I assume is more of a stylesheet problem.</p>
  
  <p>Here's the activity XML</p>
  
  <pre><code>&lt;!-- A DrawerLayout is intended to be used as the top-level content view using match_parent for both width and height to consume the full space available. --&gt;
  &lt;android.support.v4.widget.DrawerLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:id="@+id/drawer_layout"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      tools:context="pt.bluecover.wearable3d.DrawerActivity"&gt;
  
      &lt;!-- placed here as explained @
      http://developer.android.com/training/appbar/setting-up.html --&gt;
      &lt;android.support.v7.widget.Toolbar
          android:id="@+id/my_toolbar"
          android:layout_width="match_parent"
          android:layout_height="?attr/actionBarSize"
          android:background="?attr/colorPrimary"
          android:elevation="4dp"
          android:theme="@style/AppBar"
          app:popupTheme="@style/Popup"/&gt;
  
      &lt;!-- As the main content view, the view below consumes the entire
           space available using match_parent in both dimensions. --&gt;
      &lt;FrameLayout
          android:id="@+id/container"
          android:layout_width="match_parent"
          android:layout_height="match_parent" /&gt;
  
      &lt;!-- The drawer is given a fixed width in dp and extends the full height of
           the container. --&gt;
      &lt;fragment
          android:id="@+id/navigation_drawer"
          android:name="pt.bluecover.wearable3d.NavigationDrawerFragment"
          android:layout_width="@dimen/navigation_drawer_width"
          android:layout_height="match_parent"
          android:layout_gravity="start"
          tools:layout="@layout/drawer_drawer" /&gt;
  
  &lt;/android.support.v4.widget.DrawerLayout&gt;
  </code></pre>
  
  <p>And here's the styles.xml</p>
  
  <pre><code>&lt;resources&gt;
      &lt;style name="AppBar" parent="ThemeOverlay.AppCompat.ActionBar"/&gt;
      &lt;style name="Popup" parent="ThemeOverlay.AppCompat.Light" /&gt;
      &lt;style name="GdxTheme" parent="Theme.AppCompat.Light.NoActionBar"&gt;
          &lt;item name="android:windowBackground"&gt;@android:color/transparent&lt;/item&gt;
          &lt;item name="android:colorBackgroundCacheHint"&gt;@null&lt;/item&gt;
          &lt;item name="android:windowAnimationStyle"&gt;@android:style/Animation&lt;/item&gt;
          &lt;item name="android:windowContentOverlay"&gt;@null&lt;/item&gt;
      &lt;/style&gt;
  
  &lt;/resources&gt;
  </code></pre>
  
  <p>And here's on I'm initializing it, on a class which AppCompatActivity:</p>
  
  <pre><code>@Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_drawer);
  
      //lets set the toolbar
      Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
      setSupportActionBar(myToolbar);
  
      mNavigationDrawerFragment = (NavigationDrawerFragment)
              getFragmentManager().findFragmentById(R.id.navigation_drawer);
      mTitle = getTitle();
  
      // Set up the drawer.
      mNavigationDrawerFragment.setUp(
              R.id.navigation_drawer,
              (DrawerLayout) findViewById(R.id.drawer_layout));
  }
  </code></pre>
  
  <p>So, does anyone knows why the action bar doesn't even show up?</p>
  
  <p>Extra info: the fragment in display is a libGDX fragment.</p>