<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".panic.CalculatorActivity">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:theme="?attr/actionBarTheme" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:gravity="bottom|end"
        android:padding="5dp"
        android:textAlignment="textEnd"
        android:textSize="22sp"
        android:typeface="monospace"
        app:layout_constraintBottom_toTopOf="@+id/ce"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/toolbar"
        tools:text="1337+42" />

    <Button
        android:id="@+id/times"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="op"
        android:text="×"
        app:layout_constraintBottom_toTopOf="@+id/seven"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/divided"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="op"
        android:text="÷"
        app:layout_constraintBottom_toTopOf="@+id/eight"
        app:layout_constraintStart_toEndOf="@+id/times"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/c"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="c"
        android:text="C"
        app:layout_constraintBottom_toTopOf="@+id/nine"
        app:layout_constraintStart_toEndOf="@+id/divided"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/seven"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="7"
        app:layout_constraintBottom_toTopOf="@+id/four"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/eight"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="8"
        app:layout_constraintBottom_toTopOf="@+id/five"
        app:layout_constraintStart_toEndOf="@+id/seven"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/nine"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="9"
        app:layout_constraintBottom_toTopOf="@+id/six"
        app:layout_constraintStart_toEndOf="@+id/eight"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/ce"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:onClick="ce"
        android:text="CE"
        app:layout_constraintBottom_toTopOf="@+id/plus"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/nine"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/four"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="4"
        app:layout_constraintBottom_toTopOf="@+id/one"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/five"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="5"
        app:layout_constraintBottom_toTopOf="@+id/two"
        app:layout_constraintStart_toEndOf="@+id/four"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/six"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="6"
        app:layout_constraintBottom_toTopOf="@+id/three"
        app:layout_constraintStart_toEndOf="@+id/five"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/plus"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:onClick="op"
        android:text="+"
        app:layout_constraintBottom_toTopOf="@+id/minus"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/six"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/minus"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:onClick="op"
        android:text="-"
        app:layout_constraintBottom_toTopOf="@+id/equals"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/three"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/one"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="1"
        app:layout_constraintBottom_toTopOf="@+id/zero"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/two"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="2"
        app:layout_constraintBottom_toTopOf="@+id/comma"
        app:layout_constraintStart_toEndOf="@+id/one"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/three"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="3"
        app:layout_constraintBottom_toTopOf="@+id/percent"
        app:layout_constraintStart_toEndOf="@+id/two"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/zero"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="0"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/comma"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="number"
        android:text="."
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toEndOf="@+id/zero"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/percent"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginBottom="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginStart="8dp"
        android:onClick="op"
        android:text="%"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toEndOf="@+id/comma"
        tools:ignore="HardcodedText" />

    <Button
        android:id="@+id/equals"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:onClick="op"
        android:text="="
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toEndOf="@+id/three"
        app:layout_constraintTop_toTopOf="@+id/three"
        tools:ignore="HardcodedText" />

</androidx.constraintlayout.widget.ConstraintLayout>
