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

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

<!--
  ~ Copyright 2013 serso aka se.solovyev
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~    http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  ~
  ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ~ Contact details
  ~
  ~ Email: se.solovyev@gmail.com
  ~ Site:  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>