Pushing the ActionBar to the next level

activity_home.xml

<FrameLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/image_header"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scaleType="centerCrop"
        android:src="@drawable/daft_punk"/>

    <View
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/gradient"/>

</FrameLayout>