From 7cd9f3cf3a86edc8425a2775d59cab6ff98d9dab Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sat, 19 May 2018 20:11:35 +0200
Subject: Initial design and functionality

---
 app/src/main/AndroidManifest.xml                   |  21 ++
 .../marvinborner/myapplication/MainActivity.java   | 194 ++++++++++++++
 .../res/drawable-v24/ic_launcher_foreground.xml    |  34 +++
 .../main/res/drawable/ic_launcher_background.xml   | 170 ++++++++++++
 app/src/main/res/layout/activity_main.xml          | 296 +++++++++++++++++++++
 app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml |   5 +
 .../res/mipmap-anydpi-v26/ic_launcher_round.xml    |   5 +
 app/src/main/res/mipmap-hdpi/ic_launcher.png       | Bin 0 -> 3056 bytes
 app/src/main/res/mipmap-hdpi/ic_launcher_round.png | Bin 0 -> 5024 bytes
 app/src/main/res/mipmap-mdpi/ic_launcher.png       | Bin 0 -> 2096 bytes
 app/src/main/res/mipmap-mdpi/ic_launcher_round.png | Bin 0 -> 2858 bytes
 app/src/main/res/mipmap-xhdpi/ic_launcher.png      | Bin 0 -> 4569 bytes
 .../main/res/mipmap-xhdpi/ic_launcher_round.png    | Bin 0 -> 7098 bytes
 app/src/main/res/mipmap-xxhdpi/ic_launcher.png     | Bin 0 -> 6464 bytes
 .../main/res/mipmap-xxhdpi/ic_launcher_round.png   | Bin 0 -> 10676 bytes
 app/src/main/res/mipmap-xxxhdpi/ic_launcher.png    | Bin 0 -> 9250 bytes
 .../main/res/mipmap-xxxhdpi/ic_launcher_round.png  | Bin 0 -> 15523 bytes
 app/src/main/res/values/colors.xml                 |   6 +
 app/src/main/res/values/strings.xml                |   3 +
 app/src/main/res/values/styles.xml                 |  11 +
 20 files changed, 745 insertions(+)
 create mode 100644 app/src/main/AndroidManifest.xml
 create mode 100644 app/src/main/java/me/marvinborner/myapplication/MainActivity.java
 create mode 100644 app/src/main/res/drawable-v24/ic_launcher_foreground.xml
 create mode 100644 app/src/main/res/drawable/ic_launcher_background.xml
 create mode 100644 app/src/main/res/layout/activity_main.xml
 create mode 100644 app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
 create mode 100644 app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
 create mode 100644 app/src/main/res/mipmap-hdpi/ic_launcher.png
 create mode 100644 app/src/main/res/mipmap-hdpi/ic_launcher_round.png
 create mode 100644 app/src/main/res/mipmap-mdpi/ic_launcher.png
 create mode 100644 app/src/main/res/mipmap-mdpi/ic_launcher_round.png
 create mode 100644 app/src/main/res/mipmap-xhdpi/ic_launcher.png
 create mode 100644 app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
 create mode 100644 app/src/main/res/mipmap-xxhdpi/ic_launcher.png
 create mode 100644 app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
 create mode 100644 app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
 create mode 100644 app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
 create mode 100644 app/src/main/res/values/colors.xml
 create mode 100644 app/src/main/res/values/strings.xml
 create mode 100644 app/src/main/res/values/styles.xml

(limited to 'app/src/main')

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..d2c5f0a
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="me.marvinborner.myapplication">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/app/src/main/java/me/marvinborner/myapplication/MainActivity.java b/app/src/main/java/me/marvinborner/myapplication/MainActivity.java
new file mode 100644
index 0000000..921f0f1
--- /dev/null
+++ b/app/src/main/java/me/marvinborner/myapplication/MainActivity.java
@@ -0,0 +1,194 @@
+package me.marvinborner.myapplication;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.text.method.ScrollingMovementMethod;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+
+public class MainActivity extends AppCompatActivity {
+
+    Button button0, button1, button2, button3, button4, button5, button6,
+            button7, button8, button9, buttonAdd, buttonSub, buttonDivision,
+            buttonMul, button10, buttonC, buttonEqual;
+    TextView ResultTextView;
+
+    float mValueOne, mValueTwo;
+
+    boolean Addition, Subtraction, Multiplication, Division;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        button0 = findViewById(R.id.button0);
+        button1 = findViewById(R.id.button1);
+        button2 = findViewById(R.id.button2);
+        button3 = findViewById(R.id.button3);
+        button4 = findViewById(R.id.button4);
+        button5 = findViewById(R.id.button5);
+        button6 = findViewById(R.id.button6);
+        button7 = findViewById(R.id.button7);
+        button8 = findViewById(R.id.button8);
+        button9 = findViewById(R.id.button9);
+        button10 = findViewById(R.id.button10);
+        buttonAdd = findViewById(R.id.buttonadd);
+        buttonSub = findViewById(R.id.buttonsub);
+        buttonMul = findViewById(R.id.buttonmul);
+        buttonDivision = findViewById(R.id.buttondiv);
+        buttonC = findViewById(R.id.buttonC);
+        buttonEqual = findViewById(R.id.buttoneql);
+        ResultTextView = findViewById(R.id.edt1);
+
+        ResultTextView.setMovementMethod(new ScrollingMovementMethod());
+
+
+        button1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "1");
+            }
+        });
+
+        button2.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "2");
+            }
+        });
+
+        button3.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "3");
+            }
+        });
+
+        button4.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "4");
+            }
+        });
+
+        button5.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "5");
+            }
+        });
+
+        button6.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "6");
+            }
+        });
+
+        button7.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "7");
+            }
+        });
+
+        button8.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "8");
+            }
+        });
+
+        button9.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "9");
+            }
+        });
+
+        button0.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + "0");
+            }
+        });
+
+        buttonAdd.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+
+                if (ResultTextView == null) {
+                    ResultTextView.setText("");
+                } else {
+                    mValueOne = Float.parseFloat(ResultTextView.getText() + "");
+                    Addition = true;
+                    ResultTextView.setText(null);
+                }
+            }
+        });
+
+        buttonSub.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mValueOne = Float.parseFloat(ResultTextView.getText() + "");
+                Subtraction = true;
+                ResultTextView.setText(null);
+            }
+        });
+
+        buttonMul.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mValueOne = Float.parseFloat(ResultTextView.getText() + "");
+                Multiplication = true;
+                ResultTextView.setText(null);
+            }
+        });
+
+        buttonDivision.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mValueOne = Float.parseFloat(ResultTextView.getText() + "");
+                Division = true;
+                ResultTextView.setText(null);
+            }
+        });
+
+        buttonEqual.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                mValueTwo = Float.parseFloat(ResultTextView.getText() + "");
+
+                if (Addition){
+                    ResultTextView.setText(mValueOne + mValueTwo + "");
+                    Addition = false;
+                } else if (Subtraction) {
+                    ResultTextView.setText(mValueOne - mValueTwo + "");
+                    Subtraction = false;
+                } else if (Multiplication) {
+                    ResultTextView.setText(mValueOne * mValueTwo + "");
+                    Multiplication = false;
+                } else if (Division) {
+                    ResultTextView.setText(mValueOne / mValueTwo + "");
+                    Division = false;
+                }
+            }
+        });
+
+        buttonC.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText("");
+            }
+        });
+
+        button10.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ResultTextView.setText(ResultTextView.getText() + ".");
+            }
+        });
+    }
+}
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..c7bd21d
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>
diff --git a/app/src/main/res/drawable/ic_launcher_background.xml b/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..d5fccc5
--- /dev/null
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..d39b400
--- /dev/null
+++ b/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,296 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.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=".MainActivity">
+
+    <TableLayout
+        android:id="@+id/tableLayout2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        android:layout_marginEnd="16dp"
+        android:layout_marginTop="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/tableLayout"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.648">
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/buttondiv"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="÷"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace" />
+
+            <Button
+                android:id="@+id/buttonC"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="C"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/buttonmul"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="×"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace" />
+
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/buttonadd"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="+"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace" />
+
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="92dp">
+
+            <Button
+                android:id="@+id/buttonsub"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="-"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace" />
+
+            <Button
+                android:id="@+id/buttoneql"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="="
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace" />
+
+        </TableRow>
+
+    </TableLayout>
+
+    <TableLayout
+        android:id="@+id/tableLayout"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="16dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/tableLayout2"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.649">
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/button1"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="1"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button2"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="2"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button3"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="3"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/button4"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="4"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button5"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="5"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button6"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="6"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/button7"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="7"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button8"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="8"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button9"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="9"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <Button
+                android:id="@+id/button10"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="."
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+            <Button
+                android:id="@+id/button0"
+                android:layout_width="80dp"
+                android:layout_height="80dp"
+                android:fontFamily="monospace"
+                android:text="0"
+                android:textAppearance="@style/TextAppearance.AppCompat"
+                android:textSize="30sp"
+                android:typeface="monospace"
+                tools:layout_editor_absoluteX="16dp"
+                tools:layout_editor_absoluteY="16dp" />
+
+        </TableRow>
+
+    </TableLayout>
+
+    <TextView
+        android:id="@+id/edt1"
+        android:layout_width="334dp"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="52dp"
+        android:layout_marginEnd="16dp"
+        android:layout_marginStart="16dp"
+        android:fontFamily="monospace"
+        android:maxLines="1"
+        android:scrollbars="horizontal"
+        android:textSize="50sp"
+        android:typeface="monospace"
+        app:layout_constraintBottom_toTopOf="@+id/tableLayout"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..eca70cf
--- /dev/null
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..eca70cf
--- /dev/null
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..a2f5908
Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000..1b52399
Binary files /dev/null and b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..ff10afd
Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 0000000..115a4c7
Binary files /dev/null and b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..dcd3cd8
Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..459ca60
Binary files /dev/null and b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..8ca12fe
Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..8e19b41
Binary files /dev/null and b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..b824ebd
Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000..4c19a13
Binary files /dev/null and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..3ab3e9c
--- /dev/null
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..a70d9f1
--- /dev/null
+++ b/app/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Simple Calculator</string>
+</resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..3d8448c
--- /dev/null
+++ b/app/src/main/res/values/styles.xml
@@ -0,0 +1,11 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.DayNight">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+</resources>
-- 
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