title: Android RecyclerView and DrawerLayout are overwriting each other
body: <p>Inside my xml file, I have a recyclerView and a navigation Drawer Layout. The problem is that if I put the code for the Drawer Layout on top of the RecyclerView, the drawer layout shows but the the RecyclerView becomes blank.</p>
  
  <p>If I do the opposite, the RecyclerView is populated, but the the Navigation Drawer is no where to be found. Is this an xml thing? Here is my xml code for this layout:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical"&gt;
  
  &lt;include
      layout="@layout/app_bar"
      android:id="@+id/app_bar" /&gt;
  
  
  &lt;android.support.v7.widget.RecyclerView
      android:id="@+id/routes_recycler_view"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"/&gt;
  
  &lt;android.support.v4.widget.DrawerLayout
      android:id="@+id/drawer_layout"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
  
      &lt;fragment
          android:id="@+id/fragment_navigation_drawer"
          android:layout_width="@dimen/nav_drawer_width"
          android:layout_height="match_parent"
          android:layout_gravity="start"
          app:layout="@layout/fragment_navigation_drawer"
          android:name="com.findthewayapp.fragments.NavigationDrawerFragment"
          tools:layout="@layout/fragment_navigation_drawer" /&gt;
  
  &lt;/android.support.v4.widget.DrawerLayout&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>