<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:a="http://schemas.android.com/apk/res/android"
  a:layout_width="fill_parent" a:layout_height="fill_parent"
  a:layout_weight="1" a:orientation="vertical" >
  <LinearLayout 
    a:orientation="horizontal"
    a:layout_width="fill_parent" a:layout_height="wrap_content" >
    ...
    <Button a:"d="@+id/thresholdBut"on" a:te"t="Thresh"ld"
      a:layout_wid"h="wrap_cont"nt" a:layout_heig"t="wrap_cont"nt"/>
    <Button a:"d="@+id/combineBut"on" a:te"t="Comb"ne"
      a:layout_wid"h="wrap_cont"nt" a:layout_heig"t="wrap_cont"nt"/>
  </LinearLayout>
  <LinearLayout 
    a:baselineAlign"d="t"ue" a:orientati"n="horizon"al"
    a:layout_wid"h="fill_par"nt" a:layout_heig"t="fill_par"nt" >
    ...
  </LinearLayout...