WindowSoftInputMode and ScrollView

My Android app's main activity looks like this:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/RelativeLayout1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/background"
    android:orientation="vertical" >

    <ScrollView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/ScrollView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:fillViewport="true"
        android:orientation="vertical"
        android:paddingLeft="60dp"
        android:paddingTop="53dp" >

        <RelativeLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/RelativeLayout1"
            android:layout_width="fill_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/billAmountText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/billAmount_string"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <EditText
                android:id="@+id/billAmount"
                android:layout_width="173dp"
                android:layout_height="wrap_content"
                android:layout_below="@id/billAmountText"
                android:layout_marginTop="3dp"
                android:inputType="numberDecimal" />
        </RelativeLayout>
    </ScrollView>

</RelativeLayout>

In order to make sure the background image (defined in the first RelativeLayout) does not get squeezed when the keyboard pops up, I have set android:windowSoftInputMode="stateVisible|adjustPan in the manifest file for my activity. All good with the background and layout now, nothing gets resized.

But the problem is that my ScrollView doesn't work now because I suppose the system thinks the window doesn't need resizing due to my above modification to the manifest - so the ScrollView is not activated. The opposite happens when I take android:windowSoftInputMode="stateVisible|adjustPan out, the scrolling works, but the background gets squeezed when the keyboard pops out.

Is there any way to code it so that my background doesn't get squeezed, and my ScrollView still works? Thanks!