android-calculatorpp/android-app/res/layout/tabs.xml

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

<!--
  ~ Copyright (c) 2009-2011. Created by serso aka se.solovyev.
  ~ For more information, please, contact se.solovyev@gmail.com
  ~ or visit http://se.solovyev.org
  -->

<TabHost xmlns:a="http://schemas.android.com/apk/res/android"
	a:id="@android:id/tabhost"
	a:layout_width="fill_parent"
	a:layout_height="fill_parent">

	<LinearLayout
		a:orientation="vertical"
		a:layout_width="fill_parent"
		a:layout_height="fill_parent">

		<TabWidget
			a:id="@android:id/tabs"
			a:layout_width="fill_parent"
			a:layout_height="wrap_content" />

		<FrameLayout
			a:id="@android:id/tabcontent"
			a:layout_width="fill_parent"
			a:layout_height="fill_parent" />

	</LinearLayout>
</TabHost>