Sample implementation of the ParallaxScrollBehaviour

parallax_header_example.xml

<?xml version="1.0" encoding="utf-8"?>
<layout 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.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="@dimen/header_height"
            android:background="@color/colorPrimary"
            app:layout_behavior="@string/parallax_view_behavior">
          <!-- @string/parallax_view_behavior = "com.example.app.behaviour.ParallaxScrollBehaviour" -->

        </LinearLayout>

        <android.support.v7.widget.RecyclerView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:clipToPadding="false" />

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

</layout>