android-calculatorpp/android-app/res/layout-xlarge/cpp_app_keyboard.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">

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

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

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

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

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

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

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

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

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

	</LinearLayout>

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

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

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

		<include layout="@layout/cpp_drag_button_7" />

		<include layout="@layout/cpp_drag_button_8" />

		<include layout="@layout/cpp_drag_button_9" />

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

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

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

	</LinearLayout>

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

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

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

		<include layout="@layout/cpp_drag_button_4" />

		<include layout="@layout/cpp_drag_button_5" />

		<include layout="@layout/cpp_drag_button_6" />

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

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

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

	</LinearLayout>

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

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

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

		<include layout="@layout/cpp_drag_button_1" />

		<include layout="@layout/cpp_drag_button_2" />

		<include layout="@layout/cpp_drag_button_3" />

		<include layout="@layout/cpp_drag_button_0" />

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

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

	</LinearLayout>

</LinearLayout>