How to hide toolbar on scroll in recyclerview, which is located in fragment in viewpager, if using new design support library?

```
<android.support.v4.widget.DrawerLayout 
    ... >
    <android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v4.view.ViewPager
            android:id="@+id/viewPager"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior" />

        <android.support.design.widget.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                ...
                android:minHeight="?actionBarSize"
                app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                app:layout_scrollFlags="scroll|enterAlways" />

            <android.support.design.widget.TabLayout
                android:id="@+id/tab_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                ... />

        </android.support.design.widget.AppBarLayout>

    </android.support.design.widget.CoordinatorLayout>

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        ... />
</android.support.v4.widget.DrawerLayout>

```