android-calculatorpp/android-app-onscreen/res/layout/onscreen_layout.xml

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

<LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
			  a:orientation="vertical"
			  style="@style/cpp_onscreen_main_layout_style">

	<include
			a:id="@+id/onscreen_header"
			layout="@layout/onscreen_header"/>

	<LinearLayout
			a:id="@+id/onscreen_content"
			a:orientation="vertical"
			a:layout_width="match_parent"
			a:layout_height="match_parent">

		<include
				layout="@layout/onscreen_editor"
				a:layout_width="match_parent"
				a:layout_height="wrap_content"/>

		<LinearLayout
				a:layout_weight="1"
				a:layout_width="match_parent"
				a:layout_height="0dp">

			<include
					layout="@layout/cpp_simple_button_equals"
					a:layout_margin="@dimen/cpp_button_margin"
					a:layout_weight="1"
					a:layout_width="0dp"
					a:layout_height="match_parent"/>

			<include
					layout="@layout/onscreen_display"
					a:layout_weight="4"
					a:layout_width="0dp"
					a:layout_height="wrap_content"/>

		</LinearLayout>

		<include
				layout="@layout/onscreen_keyboard"
				a:layout_weight="4"
				a:layout_width="match_parent"
				a:layout_height="0dp"/>
	</LinearLayout>

	<include layout="@layout/onscreen_footer"/>

</LinearLayout>