Keyboard of Edittext in listview slides up the remaining layout

I have following layout in view:

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFFFFF"    
    >

  <include  layout="@layout/header" android:layout_width="fill_parent" android:layout_height="97dip"/>
    <ListView
        android:id="@+id/sub_comments_list"     
        an开发者_开发知识库droid:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:cacheColorHint="#00000000"
        android:divider="#A8A8A8"       
        android:background="#FFF"
        android:listSelector="@drawable/white_list_view_selector"
    />

    <include layout="@layout/footer" android:layout_width="fill_parent" android:layout_height="36dip"/>


</LinearLayout>

Inside the listview I have an edittext when I touch(focus) on that edittext, the footer layout also slides up like following: