title: RecyclerView inside DrawerLayout within LinearLayout not scrollable/clickable
body: <p>I have adjusted my layout so that the Navigation Drawer appears underneath the toolbar:</p>
  
  <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:orientation="vertical"
      android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
  
      &lt;android.support.v7.widget.Toolbar android:id="@+id/detail_toolbar"
          android:layout_width="match_parent"
          android:layout_height="?attr/actionBarSize"
          app:layout_collapseMode="pin"
          app:layout_scrollFlags="scroll|enterAlways"
          app:popupTheme="@style/ThemeOverlay.AppCompat.Light" /&gt;
  
  
      &lt;android.support.v4.widget.DrawerLayout
          xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:app="http://schemas.android.com/apk/res-auto"
          xmlns:tools="http://schemas.android.com/tools"
          android:id="@+id/drawer_layout"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:fitsSystemWindows="true"&gt;
  
  
  
          &lt;android.support.v7.widget.RecyclerView
              android:id="@+id/left_drawer"
              android:scrollbars="vertical"
              android:layout_width="240dp"
              android:layout_height="match_parent"
              android:layout_gravity="left|start"
              android:choiceMode="singleChoice"
              android:divider="@null"
              android:background="@color/colorPrimary"
              /&gt;
  
          &lt;android.support.design.widget.CoordinatorLayout
              xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:app="http://schemas.android.com/apk/res-auto"
              xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
              android:layout_height="match_parent" android:fitsSystemWindows="true"
              tools:context=".JuceActivity" tools:ignore="MergeRootFrame"&gt;
  
              &lt;LinearLayout
                  android:layout_width="match_parent"
                  android:layout_height="match_parent"
                  android:id="@+id/juce_view_container"
                  app:layout_behavior="@string/appbar_scrolling_view_behavior"
                  android:orientation="horizontal" /&gt;
  
              &lt;android.support.design.widget.FloatingActionButton android:id="@+id/fab"
                  android:layout_width="wrap_content" android:layout_height="wrap_content"
                  android:layout_gravity="center_vertical|start" android:layout_margin="@dimen/fab_margin"
                  android:src="@android:drawable/stat_notify_chat"
                  app:layout_anchor="@+id/juce_view_container" app:layout_anchorGravity="top|end" /&gt;
  
          &lt;/android.support.design.widget.CoordinatorLayout&gt;
      &lt;/android.support.v4.widget.DrawerLayout&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>However, now the drawer's Recycler View does not scroll and does not respond to click events. </p>
  
  <p>Anything I've missed here? </p>