title: NestedScrolling with NestedScrollView, RecyclerView (Horizontal), inside a CoordinatorLayout
body: <p>I have a UI design with CollapsingToolbarLayout, like following.</p>
  
  <p></p>
  
  <pre><code>&lt;android.support.design.widget.AppBarLayout
      android:id="@+id/appbar"
      android:layout_width="match_parent"
      android:layout_height="@dimen/detail_backdrop_height"
      android:fitsSystemWindows="true"
      android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"&gt;
  
      &lt;android.support.design.widget.CollapsingToolbarLayout
  
          android:id="@+id/collapsing_toolbar"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:fitsSystemWindows="true"
          app:contentScrim="?attr/colorPrimary"
          app:expandedTitleMarginEnd="64dp"
          app:expandedTitleMarginStart="48dp"
          app:layout_scrollFlags="scroll|exitUntilCollapsed"&gt;
  
          &lt;ImageView
              android:id="@+id/backdrop"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:fitsSystemWindows="true"
              android:scaleType="centerCrop"
              app:layout_collapseMode="parallax" /&gt;
  
          &lt;android.support.v7.widget.Toolbar
              android:id="@+id/toolbar"
              android:layout_width="match_parent"
              android:layout_height="?attr/actionBarSize"
              app:layout_collapseMode="pin"
              app:popupTheme="@style/ThemeOverlay.AppCompat.Light" /&gt;
  
      &lt;/android.support.design.widget.CollapsingToolbarLayout&gt;
  
  &lt;/android.support.design.widget.AppBarLayout&gt;
  
  &lt;android.support.v4.widget.NestedScrollView
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:fillViewport="true"
      android:theme="@style/ThemeOverlay.AppCompat.Light"
      app:layout_behavior="@string/appbar_scrolling_view_behavior"&gt;
  
      &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="vertical"
          android:paddingTop="24dp"&gt;
  
          &lt;!-- Hiding unrelated code --&gt;
  
          &lt;android.support.v7.widget.CardView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_margin="@dimen/card_margin"
              android:padding="16dp"&gt;
  
  
                  &lt;android.support.v7.widget.RecyclerView
                      android:id="@+id/recycler_movie_suggestion"
                      android:layout_width="match_parent"
                      android:layout_height="170dp"
                      android:fillViewport="true"
                      android:nestedScrollingEnabled="false"
                      app:layout_behavior="@string/appbar_scrolling_view_behavior" /&gt;
  
              &lt;/LinearLayout&gt;
  
          &lt;/android.support.v7.widget.CardView&gt;
  
      &lt;/LinearLayout&gt;
  
  &lt;/android.support.v4.widget.NestedScrollView&gt;
  </code></pre>
  
  <p></p>
  
  <p>My problem is, the scrolling is fine ONLY when I touch and scroll the area OUTSIDE the RecyclerView. If I try to scroll vertically inside the RecyclerView, the scrolling is "trapped" and ONLY the NestedScrollView is scrolling, the CollaspingToolbarLayout ISN'T collasping.</p>