title: AppCompat Toolbar not Showing
body: <p>After declaring .NoActionBar in the theme, as well as putting the <code>toolbar</code> in the layout, my <code>toolbar</code> does not show. What I end up getting is exactly what you'd expect when declaring no action bar -- no action bar. Here is the layout:</p>
  
  <p><strong>activity_home.xml:</strong>
  </p>
  
  <pre><code>&lt;include
      layout="@layout/app_bar_home"
      android:layout_width="match_parent"
      android:layout_height="match_parent"/&gt;
  
  &lt;android.support.design.widget.NavigationView
      android:id="@+id/nav_view"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:layout_gravity="start"
      android:fitsSystemWindows="true"
      app:headerLayout="@layout/nav_header_home"
      app:menu="@menu/activity_home_drawer"/&gt;
  </code></pre>
  
  <p></p>
  
  <p><strong>app_bar_home.xml</strong>
  </p>
  
  <pre><code>&lt;android.support.design.widget.AppBarLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:theme="@style/AppTheme.AppBarOverlay"&gt;
  
      &lt;android.support.v7.widget.Toolbar
          android:id="@+id/toolbar"
          android:layout_width="match_parent"
          android:layout_height="?attr/actionBarSize"
          android:background="?attr/colorPrimary"
          app:popupTheme="@style/AppTheme.PopupOverlay"/&gt;
  
  &lt;/android.support.design.widget.AppBarLayout&gt;
  
  &lt;include layout="@layout/content_home"/&gt;
  </code></pre>
  
  <p></p>