title: Scroll certain views in coordinator layout with RecyclerView
body: <p>Hello I have <code>CoordinatorLayout</code> with <code>AppBar</code>, <code>Toolbar</code> and <code>RecyclerView</code>. </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;    
  &lt;android.support.design.widget.CoordinatorLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:fitsSystemWindows="true"&gt;
  
  &lt;android.support.design.widget.AppBarLayout
      android:id="@+id/appbar"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:elevation="0dp"
      android:fitsSystemWindows="true"
      app:elevation="0dp"&gt;
  
      &lt;android.support.v7.widget.Toolbar
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:elevation="8dp"
          android:fitsSystemWindows="true"
          app:contentInsetEnd="0dp"
          app:contentInsetStart="0dp"/&gt;
  
      &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="vertical"
          app:layout_scrollFlags="scroll|exitUntilCollapsed"/&gt;
  
  &lt;/android.support.design.widget.AppBarLayout&gt;
  
  &lt;android.support.v7.widget.RecyclerView
      android:id="@+id/rv_photos"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:nestedScrollingEnabled="false"
      app:layout_behavior="@string/appbar_scrolling_view_behavior"/&gt;
  &lt;/android.support.design.widget.CoordinatorLayout&gt;
  </code></pre>
  
  <p>I want to leave <code>Toolbar</code> on top and don't want to move it, but let <code>LinearLayout</code> scroll below it (under the <code>Toolbar</code>). </p>
  
  <p>Also I found that RecyclerView's not working with Coordinator layout. It doesn't trigger AppBar scroll events. If I will wrap it inside NestedSCrollView it will work but RecyclerView's not recycling view holders then so it's doesn't work for me.</p>
  
  <p>Could anyone help to achieve this?</p>