android-calculatorpp/app/src/main/res/layout/widget_keyboard.xml

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

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  ~ Copyright 2013 serso aka se.solovyev
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  ~ 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
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  ~    http://www.apache.org/licenses/LICENSE-2.0
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  ~ distributed under the License is distributed on an "AS IS" BASIS,
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<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_width="match_parent"
        a:layout_height="0dp"
        a:layout_weight="1">

        <include layout="@layout/cpp_simple_button_7" />

        <include layout="@layout/cpp_simple_button_8" />

        <include layout="@layout/cpp_simple_button_9" />

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

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

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

    </LinearLayout>

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

        <include layout="@layout/cpp_simple_button_4" />

        <include layout="@layout/cpp_simple_button_5" />

        <include layout="@layout/cpp_simple_button_6" />

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

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

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

    </LinearLayout>

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

        <include layout="@layout/cpp_simple_button_1" />

        <include layout="@layout/cpp_simple_button_2" />

        <include layout="@layout/cpp_simple_button_3" />

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

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

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

    </LinearLayout>

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

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

        <include layout="@layout/cpp_simple_button_0" />

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

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

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

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

    </LinearLayout>


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

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

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

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

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

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

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

    </LinearLayout>

</LinearLayout>