Again I spent hours to resolve this (easy) but for me hard problem. I can't put button at botton of view.
<?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" >
    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >
            <ImageView
                android:id="@+id/imageView1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                 />
            <ScrollView
                android:id="@+id/scrollView1"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" >
                <WebView
                    android:id="@+id/webView1"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" />
            </ScrollView>
</LinearLayout>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
<Button
    android:id="@+id/button1"
    style="?android:attr/buttonStyleSmall"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Button" />
</LinearLayout>
</LinearLayout>