<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <uk.co.senab.photoview.PhotoView
        android:id="@+id/source_image"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@drawable/img_background"
        android:scaleType="centerInside"
        android:visibility="gone" />

    <WebView
        android:id="@+id/source_webview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone" >
    </WebView>

</LinearLayout>