title: DrawerLayout with Admob ad
body: <p>I am using Navigation-Drawer in my application.So I have created single activity with navigation_drawer layout.I am using fragments to change main content area(@+id/content_frame) data whenever user chooses a menu option from navigation drawer menu.Now my problem is that I want to show admob ad on every screen.I could used fragments to initialize ad layout and inflate it into FrameLayout but I think would be not a good option.Is their any way to initialize ad using that single activty?</p>
  
  <p><strong>navigation_drawer.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/drawer_layout"
      android:layout_width="match_parent"
      android:layout_height="match_parent" &gt;
  
      &lt;!-- The main content view --&gt;
  
      &lt;FrameLayout
          android:id="@+id/content_frame"
          android:layout_width="match_parent"
          android:layout_height="match_parent" /&gt;
  
      &lt;!-- The navigation drawer --&gt;
  
      &lt;ListView
          android:id="@+id/left_drawer"
          android:layout_width="240dp"
          android:layout_height="match_parent"
          android:layout_gravity="start"
          android:background="@color/side_navigation_background"
          android:cacheColorHint="#00000000"
          android:choiceMode="singleChoice"
          android:divider="@color/side_navigation_list_divider_color"
          android:dividerHeight="1dp" /&gt;
  
  &lt;/android.support.v4.widget.DrawerLayout&gt;
  </code></pre>