Position two buttons on each side of the screen

Working with layouts in Android can sometimes be extremely simple and other times extremely difficult to accomplish seemingly simple tasks. I fought for a while with how to position two buttons on each side of the screen with a space between them. I'll spare all of my trials and tribulations, and get right to the code that makes it work...

The trick is to use a RelativeLayout and implement the following button layout properties:

• android:layout_alignParentLeft="true"
• android:layout_alignParentRight="true"

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="horizontal"
 android:background="@color/white" >

 <Button
  android:id="@+id/back_btn"
  android:layout_width="100px"
  android:layout_height="wrap_content"
  android:text="Prev"
  android:layout_alignParentLeft="true"
  android:padding="10dip"
  android:background="@drawable/button"
  android:textColor="@color/white" />

 <Button
  android:id="@+id/forward_btn"
  android:layout_width="100px"
  android:layout_height="wrap_content"
  android:text="Next"
  android:layout_alignParentRight="true"
  android:background="@drawable/button"
  android:textColor="@color/white"
  android:padding="10dip" />

</RelativeLayout>