<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/reader"
</FrameLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="4dp"
android:layout_gravity="bottom|left"
android:background="@color/page_number_background"
android:textColor="@color/primary_text"
android:textSize="12sp"
android:id="@+id/page_number"/>
<include layout="@layout/reader_menu"/>