<FrameLayout android:id="@+id/pinned_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
- android:visibility="gone" />
+ android:background="?android:attr/windowBackground"
+ android:elevation="1dp"
+ android:visibility="gone"/>
<FrameLayout
android:id="@android:id/list_container"