How to make android listview scrollable?

I have two listviews, but they don't scroll. How do I correct this?

Here is my layout.xml

 <?xml version="1.0" encoding="utf-8"?>
    <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:fillViewport="true" >

        <RelativeLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/backgrund" >

            <!-- Header  Starts -->

            <LinearLayout
                android:id="@+id/header"
                android:layout_width="fill_parent"
                android:layout_height="40dip"
                android:layout_alignParentTop="true"
                android:background="@layout/header" >
            </LinearLayout>

            <!-- Header Ends -->
            <!-- Footer Start -->

            <TextView
                android:id="@+id/textAD"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignBottom="@+id/header"
                android:layout_alignParentRight="true"
                android:layout_marginBottom="14dp"
                android:layout_marginRight="26dp"
                android:text="Small Text"
                android:textAppearance="?android:attr/textAppearanceSmall"
                android:textColor="#FFFFFF" />

            <ImageView
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/header"
                android:layout_gravity="center_horizontal"
                android:focusable="false"
                android:paddingBottom="5px"
                android:paddingTop="10px"
                android:src="@android:drawable/divider_horizontal_bright" />