android-calculatorpp/calculatorpp/res/layout-port/main_cellphone.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
        xmlns:a="http://schemas.android.com/apk/res/android"
        a:layout_width="fill_parent"
        a:layout_height="fill_parent"
        a:id="@+id/ad_parent_view"
        a:orientation="vertical"
        a:layout_gravity="center"
        a:background="#ff000000">

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

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

        <include layout="@layout/calc_equals_button"
                 a:layout_weight="4"
                 a:layout_width="fill_parent"
                 a:layout_height="fill_parent"/>

        <include layout="@layout/calc_display"
                 a:layout_weight="1"
                 a:layout_width="fill_parent"
                 a:layout_height="fill_parent"/>

    </LinearLayout>

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

        <include layout="@layout/calc_one_digit_button"/>
        <include layout="@layout/calc_two_digit_button"/>
        <include layout="@layout/calc_three_digit_button"/>
        <include layout="@layout/calc_multiplication_button"/>
        <include layout="@layout/calc_clear_button"/>

    </LinearLayout>

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

        <include layout="@layout/calc_four_digit_button"/>
        <include layout="@layout/calc_five_digit_button"/>
        <include layout="@layout/calc_six_digit_button"/>
        <include layout="@layout/calc_division_button"/>
        <include layout="@layout/calc_erase_button"/>

    </LinearLayout>

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

        <include layout="@layout/calc_seven_digit_button"/>
        <include layout="@layout/calc_eight_digit_button"/>
        <include layout="@layout/calc_nine_digit_button"/>
        <include layout="@layout/calc_plus_button"/>
        <include layout="@layout/calc_copy_button"/>

    </LinearLayout>

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

        <include layout="@layout/calc_round_brackets_button"/>
        <include layout="@layout/calc_zero_digit_button"/>
        <include layout="@layout/calc_dot_button"/>
        <include layout="@layout/calc_subtraction_button"/>
        <include layout="@layout/calc_paste_button"/>

    </LinearLayout>


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

        <include layout="@layout/calc_left_button"/>
        <include layout="@layout/calc_right_button"/>
        <include layout="@layout/calc_vars_button"/>
        <include layout="@layout/calc_functions_button"/>
        <include layout="@layout/calc_history_button"/>

    </LinearLayout>
</LinearLayout>