Insert ListView between two buttons in Android XML

I have a concept xml as shown below, how to insert listview in between two buttons?

This my xml code, What should I add or change in its code?

main.xlm

<!--  main.xml -->
<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
    xmlns:tools="http://ift.tt/LrGmb4"
    android:layout_width="match_parent"
    android:layout_height="match_parent"    
    tools:context=".Main" >
    <Button android:text="Back To Main Menu"
        android:id="@+id/btn_add_contact"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"/>

    <ListView
        android:id="@+id/lv_contact_list" 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@id/btn_add_contact"/>

    <Button android:text="Add New Moment"
        android:id="@+id/btn_add_contact"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="false"/>



</RelativeLayout>