<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    android:id="@+id/labLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android">

               <ListView
                    android:id="@+id/answerList"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:scrollingCache="true" >
                </ListView>

</LinearLayout>