android-calculatorpp/android-app-widget/res/layout/widget_layout.xml

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

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

	<include
		layout="@layout/widget_editor"
		a:layout_weight="2"
		a:layout_width="match_parent"
		a:layout_height="0dp" />

	<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/widget_display"
			a:layout_weight="5"
			a:layout_width="0dp"
			a:layout_height="wrap_content" />

	</LinearLayout>

	<include
		layout="@layout/cpp_simple_keyboard"
		a:layout_weight="5"
		a:layout_width="match_parent"
		a:layout_height="0dp" />

</LinearLayout>