commit

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

.idea/deploymentTargetDropDown.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <targetSelectedWithDropDown>
+      <Target>
+        <type value="QUICK_BOOT_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="C:\Users\32083\.android\avd\Pixel_2_API_30.avd" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </targetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2021-09-13T14:58:42.894096700Z" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveModulePerSourceSet" value="false" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DesignSurface">
+    <option name="filePathToZoomLevelMap">
+      <map>
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/activity.xml" value="0.264" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/activity_main.xml" value="0.12" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/fragment_cal.xml" value="0.18795289855072464" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/fragment_chg.xml" value="0.1838768115942029" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/fragment_help.xml" value="0.18795289855072464" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/fragment_len.xml" value="0.2" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/fragment_vol.xml" value="0.18795289855072464" />
+        <entry key="..\:/Users/32083/AndroidStudioProjects/MyCalculator/app/src/main/res/layout/test.xml" value="0.24547101449275363" />
+      </map>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

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+plugins {
+    id 'com.android.application'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        applicationId "com.example.mycalculator"
+        minSdk 21
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/example/mycalculator/ExampleInstrumentedTest.java

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+package com.example.mycalculator;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.mycalculator", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.mycalculator">
+
+    <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/Theme.MyCalculator">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:screenOrientation="fullSensor">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/example/mycalculator/CalFragment.java

@@ -0,0 +1,73 @@
+package com.example.mycalculator;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.webkit.WebView;
+import android.widget.Button;
+import android.widget.TextView;
+
+public class CalFragment extends Fragment {
+
+    private int[] basicWork = {R.id.button0,R.id.button1,R.id.button2,R.id.button3,R.id.button4,
+            R.id.button5,R.id.button6,R.id.button7,R.id.button8,R.id.button9,R.id.ADD,R.id.SUB,
+            R.id.MUL,R.id.DIV,R.id.O,R.id.H,R.id.LOG,R.id.D,R.id.B, R.id.POI};
+
+    private WebView webView;
+    private View view;
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        view = inflater.inflate(R.layout.fragment_cal, container, false);
+
+        webView = new WebView(getContext());
+        webView.getSettings().setJavaScriptEnabled(true);
+
+        TextView label = view.findViewById(R.id.label);
+        for(int bw:basicWork){
+            view.findViewById(bw).setOnClickListener(view -> {
+                Button currentClicked = (Button)view;
+                label.append(currentClicked.getText());
+                if(currentClicked.getText().toString().equals("sin")
+                        ||currentClicked.getText().toString().equals("cos")
+                        ||currentClicked.getText().toString().equals("log")){
+                    label.append("(");
+                }
+            });
+        }
+
+        view.findViewById(R.id.EQU).setOnClickListener(view -> {
+            webView.evaluateJavascript("javascript:" + label.getText().toString()
+                    .replace("×", "*")
+                    .replace("÷", "/")
+                    .replace("sin","Math.sin")
+                    .replace("cos","Math.cos")
+                    .replace("log","Math.log"), result -> {
+                label.setText(result);
+            });
+        });
+
+        view.findViewById(R.id.AC).setOnClickListener(view -> {
+            label.setText("");
+        });
+
+        view.findViewById(R.id.BK).setOnClickListener(view -> {
+            if(label.length() == 0) return;
+            label.setText((label.getText().toString()).substring(0, label.getText().length() - 1));
+        });
+
+        view.findViewById(R.id.HELP).setOnClickListener(view -> {
+            label.setText("");
+            label.setText("this is help!");
+        });
+
+        return view;
+    }
+}

app/src/main/java/com/example/mycalculator/ChgFragment.java

@@ -0,0 +1,80 @@
+package com.example.mycalculator;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.webkit.WebView;
+import android.widget.Button;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+public class ChgFragment extends Fragment {
+
+    String output = "";
+    private WebView webView;
+    private View view;
+    private int[] basicWork = {R.id.button0, R.id.button1, R.id.button2, R.id.button3, R.id.button4,
+            R.id.button5, R.id.button6, R.id.button7, R.id.button8, R.id.button9, R.id.ADD,
+            R.id.SUB, R.id.MUL, R.id.DIV, R.id.POI};
+
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+
+        view = inflater.inflate(R.layout.fragment_chg, container,false);
+
+        webView = new WebView(getContext());
+        webView.getSettings().setJavaScriptEnabled(true);
+
+        TextView label = view.findViewById(R.id.label);
+
+        for(int bw:basicWork){
+            view.findViewById(bw).setOnClickListener(view -> {
+                Button currentClicked = (Button)view;
+                label.append(currentClicked.getText());
+            });
+        }
+
+        view.findViewById(R.id.EQU).setOnClickListener(view -> {
+            webView.evaluateJavascript("javascript:" + label.getText().toString()
+                    .replace("×", "*")
+                    .replace("÷", "/"), result -> {
+                label.setText(result);
+            });
+        });
+
+        view.findViewById(R.id.AC).setOnClickListener(view -> {
+            label.setText("");
+        });
+
+        view.findViewById(R.id.BK).setOnClickListener(view -> {
+            if(label.length() == 0) return;
+            label.setText((label.getText().toString()).substring(0, label.getText().length() - 1));
+        });
+
+        view.findViewById(R.id.B).setOnClickListener(view -> {
+            int input = Integer.parseInt(label.getText().toString(),10);
+            output = Integer.toBinaryString(input);
+            label.setText(output);
+        });
+
+        view.findViewById(R.id.O).setOnClickListener(view -> {
+            int input = Integer.parseInt(label.getText().toString(),10);
+            output = Integer.toOctalString(input);
+            label.setText(output);
+        });
+
+        view.findViewById(R.id.H).setOnClickListener(view -> {
+            int input = Integer.parseInt(label.getText().toString(),10);
+            output = Integer.toHexString(input);
+            label.setText(output);
+        });
+
+        return view;
+    }
+}

app/src/main/java/com/example/mycalculator/HelpFragment.java

@@ -0,0 +1,27 @@
+package com.example.mycalculator;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+public class HelpFragment extends Fragment {
+    private View view;
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        view = inflater.inflate(R.layout.fragment_help,container,false);
+        TextView TIP = view.findViewById(R.id.TIP);
+        view.findViewById(R.id.HELP).setOnClickListener(view1 -> {
+            TIP.setText("THIS IS HELP!");
+        });
+        return view;
+    }
+
+}

app/src/main/java/com/example/mycalculator/LengthChgFragment.java

@@ -0,0 +1,49 @@
+package com.example.mycalculator;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+public class LengthChgFragment extends Fragment {
+
+    private View view;
+    private String input;
+    private int selectionLeft, selectionRight;
+
+    private void change() {
+        int i = 0;
+        try { i = Integer.parseInt(old.getText().toString()); }
+        catch (Exception e) { }
+        int flag = selectionRight - selectionLeft;
+        neo.setText("" + i * Math.pow(10, flag));
+    }
+
+    private TextView old, neo;
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+
+        view = inflater.inflate(R.layout.fragment_len,container,false);
+        old = view.findViewById(R.id.old_);
+        neo = view.findViewById(R.id.neo_);
+
+        view.findViewById(R.id.M).setOnClickListener(view -> { selectionLeft = 1; change(); });
+        view.findViewById(R.id.DM).setOnClickListener(view -> { selectionLeft = 2; change(); });
+        view.findViewById(R.id.CM).setOnClickListener(view -> {selectionLeft = 3;change();});
+        view.findViewById(R.id.MM).setOnClickListener(view -> {selectionLeft = 4; change();});
+
+        view.findViewById(R.id.m).setOnClickListener(view -> {selectionRight = 1; change();});
+        view.findViewById(R.id.dm).setOnClickListener(view -> {selectionRight = 2; change();});
+        view.findViewById(R.id.cm).setOnClickListener(view -> {selectionRight = 3; change();});
+        view.findViewById(R.id.mm).setOnClickListener(view -> {selectionRight = 4; change();});
+
+        return view;
+    }
+}

app/src/main/java/com/example/mycalculator/MainActivity.java

@@ -0,0 +1,76 @@
+package com.example.mycalculator;
+
+import android.os.Bundle;
+import android.os.PersistableBundle;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentPagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+import androidx.viewpager2.widget.ViewPager2;
+
+import com.google.android.material.tabs.TabLayout;
+
+import java.util.ArrayList;
+
+public class MainActivity extends AppCompatActivity {
+
+    TabLayout tabLayout ;
+    ViewPager viewPager;
+
+    class AdapterImpl extends FragmentPagerAdapter {
+
+        public ArrayList<Fragment> fragments;
+
+        public AdapterImpl(@NonNull FragmentManager fm, int behavior, ArrayList<Fragment> fragments) {
+            super(fm, behavior);
+            this.fragments = fragments;
+        }
+
+        @NonNull
+        @Override
+        public Fragment getItem(int position) {
+            return fragments.get(position);
+        }
+
+        @Override
+        public int getCount() {
+            return fragments.size();
+        }
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        tabLayout = super.findViewById(R.id.tabLayout);
+        viewPager = super.findViewById(R.id.viewPager);
+
+        ArrayList<Fragment> fragments = new ArrayList<>();
+        fragments.add(new CalFragment());
+        fragments.add(new ChgFragment());
+        fragments.add(new LengthChgFragment());
+        fragments.add(new VolumeChgFragment());
+        fragments.add(new HelpFragment());
+
+        AdapterImpl adapter = new AdapterImpl(getSupportFragmentManager(), 0, fragments);
+        viewPager.setAdapter(adapter);
+        tabLayout.addTab(tabLayout.newTab());
+        tabLayout.addTab(tabLayout.newTab());
+        tabLayout.addTab(tabLayout.newTab());
+        tabLayout.addTab(tabLayout.newTab());
+        tabLayout.addTab(tabLayout.newTab());
+
+        tabLayout.setupWithViewPager(viewPager);
+
+        tabLayout.getTabAt(0).setText("Calculator");
+        tabLayout.getTabAt(1).setText("Change");
+        tabLayout.getTabAt(2).setText("LengthChg");
+        tabLayout.getTabAt(3).setText("VolumeChg");
+        tabLayout.getTabAt(4).setText("help");
+    }
+}

app/src/main/java/com/example/mycalculator/VolumeChgFragment.java

@@ -0,0 +1,49 @@
+package com.example.mycalculator;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+public class VolumeChgFragment extends Fragment {
+
+    private View view;
+    private String input;
+    private int selectionLeft, selectionRight;
+
+    private void change() {
+        int i = 0;
+        try { i = Integer.parseInt(old.getText().toString()); }
+        catch (Exception e) { }
+        int flag = selectionRight - selectionLeft;
+        neo.setText("" + i * Math.pow(10, flag * 3));
+    }
+
+    private TextView old, neo;
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+
+        view = inflater.inflate(R.layout.fragment_vol,container,false);
+        old = view.findViewById(R.id.old_);
+        neo = view.findViewById(R.id.neo_);
+
+        view.findViewById(R.id.M).setOnClickListener(view -> { selectionLeft = 1; change(); });
+        view.findViewById(R.id.DM).setOnClickListener(view -> { selectionLeft = 2; change(); });
+        view.findViewById(R.id.CM).setOnClickListener(view -> {selectionLeft = 3;change();});
+        view.findViewById(R.id.MM).setOnClickListener(view -> {selectionLeft = 4; change();});
+
+        view.findViewById(R.id.m).setOnClickListener(view -> {selectionRight = 1; change();});
+        view.findViewById(R.id.dm).setOnClickListener(view -> {selectionRight = 2; change();});
+        view.findViewById(R.id.cm).setOnClickListener(view -> {selectionRight = 3; change();});
+        view.findViewById(R.id.mm).setOnClickListener(view -> {selectionRight = 4; change();});
+
+        return view;
+    }
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                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="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

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:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,28 @@
+<?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=".MainActivity">
+
+    <com.google.android.material.tabs.TabLayout
+        android:id="@+id/tabLayout"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:background="#CF6666"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:ignore="SpeakableTextPresentCheck" />
+
+    <androidx.viewpager.widget.ViewPager
+        android:id="@+id/viewPager"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/tabLayout"
+        tools:ignore="SpeakableTextPresentCheck" />
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_cal.xml

@@ -0,0 +1,327 @@
+<?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"
+    android:background="#00000000"
+    android:backgroundTint="#6BAA2D2D"
+    android:foregroundTint="#000000">
+
+    <TextView
+        android:id="@+id/label"
+        android:layout_width="0dp"
+        android:layout_height="150dp"
+        android:layout_marginTop="16dp"
+        android:backgroundTint="#D3A4A4"
+        android:gravity="bottom|right"
+        android:textSize="24sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <LinearLayout
+        android:id="@+id/linearLayout"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/view">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/D"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="(" />
+
+            <Button
+                android:id="@+id/B"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text=")" />
+
+            <Button
+                android:id="@+id/O"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="sin" />
+
+            <Button
+                android:id="@+id/H"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="cos" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/AC"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="AC" />
+
+            <Button
+                android:id="@+id/BK"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="BK" />
+
+            <Button
+                android:id="@+id/LOG"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="log" />
+
+            <Button
+                android:id="@+id/DIV"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="÷" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button7"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="7" />
+
+            <Button
+                android:id="@+id/button8"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="8" />
+
+            <Button
+                android:id="@+id/button9"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="9" />
+
+            <Button
+                android:id="@+id/MUL"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="×" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button4"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="4" />
+
+            <Button
+                android:id="@+id/button5"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="5" />
+
+            <Button
+                android:id="@+id/button6"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="6" />
+
+            <Button
+                android:id="@+id/SUB"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="-" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/button1"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="1" />
+
+            <Button
+                android:id="@+id/button2"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="2" />
+
+            <Button
+                android:id="@+id/button3"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="3" />
+
+            <Button
+                android:id="@+id/ADD"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="+" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:orientation="horizontal">
+
+            <Button
+                android:id="@+id/HELP"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="help"
+                tools:ignore="TextContrastCheck" />
+
+            <Button
+                android:id="@+id/button0"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="0" />
+
+            <Button
+                android:id="@+id/POI"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="." />
+
+            <Button
+                android:id="@+id/EQU"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:layout_margin="5dp"
+                android:layout_weight="1"
+                android:backgroundTint="#A88282"
+                android:hapticFeedbackEnabled="true"
+                android:text="=" />
+        </LinearLayout>
+    </LinearLayout>
+
+    <View
+        android:id="@+id/view"
+        android:layout_width="0dp"
+        android:layout_height="5dp"
+        android:background="#A9612D2D"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/label" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_chg.xml

@@ -0,0 +1,307 @@
+<?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">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="#00000000"
+        android:backgroundTint="#6BAA2D2D"
+        android:foregroundTint="#000000"
+        tools:context=".CalFragment">
+
+        <TextView
+            android:id="@+id/label"
+            android:layout_width="0dp"
+            android:layout_height="150dp"
+            android:layout_marginTop="16dp"
+            android:backgroundTint="#D3A4A4"
+            android:gravity="bottom|right"
+            android:textSize="24sp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.0"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <LinearLayout
+            android:id="@+id/linearLayout"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:orientation="vertical"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/view">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <Button
+                    android:id="@+id/B"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="BINARY" />
+
+                <Button
+                    android:id="@+id/O"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="OCTER" />
+
+                <Button
+                    android:id="@+id/H"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="HEX" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <Button
+                    android:id="@+id/AC"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="AC" />
+
+                <Button
+                    android:id="@+id/BK"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="BK" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <Button
+                    android:id="@+id/button7"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="7" />
+
+                <Button
+                    android:id="@+id/button8"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="8" />
+
+                <Button
+                    android:id="@+id/button9"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="9" />
+
+                <Button
+                    android:id="@+id/DIV"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="÷" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <Button
+                    android:id="@+id/button4"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="4" />
+
+                <Button
+                    android:id="@+id/button5"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="5" />
+
+                <Button
+                    android:id="@+id/button6"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="6" />
+
+                <Button
+                    android:id="@+id/MUL"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="×" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <Button
+                    android:id="@+id/button1"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="1" />
+
+                <Button
+                    android:id="@+id/button2"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="2" />
+
+                <Button
+                    android:id="@+id/button3"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="3" />
+
+                <Button
+                    android:id="@+id/SUB"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="-" />
+
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <Button
+                    android:id="@+id/POI"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="." />
+
+                <Button
+                    android:id="@+id/button0"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="0" />
+
+                <Button
+                    android:id="@+id/EQU"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="=" />
+
+                <Button
+                    android:id="@+id/ADD"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"
+                    android:layout_margin="5dp"
+                    android:layout_weight="1"
+                    android:backgroundTint="#A88282"
+                    android:hapticFeedbackEnabled="true"
+                    android:text="+" />
+
+            </LinearLayout>
+        </LinearLayout>
+
+        <View
+            android:id="@+id/view"
+            android:layout_width="0dp"
+            android:layout_height="5dp"
+            android:background="#A9612D2D"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/label" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_help.xml

@@ -0,0 +1,72 @@
+<?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">
+
+    <TableLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1" />
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1" >
+
+            <Space
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1" />
+
+            <TextView
+                android:id="@+id/TIP"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:layout_weight="1" />
+
+            <Space
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1" />
+
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1" >
+
+            <Space
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1" />
+
+            <Button
+                android:id="@+id/HELP"
+                android:layout_width="30dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center|top"
+                android:layout_weight="1"
+                android:backgroundTint="#A35757"
+                android:text="HELP" />
+
+            <Space
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1" />
+
+    </TableLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_len.xml

@@ -0,0 +1,142 @@
+<?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"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TableLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1">
+
+            <TextView
+                android:id="@+id/OLD"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:text="OldDate" />
+
+            <EditText
+                android:id="@+id/old_"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="3" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1">
+
+            <TextView
+                android:id="@+id/NEW"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:text="NewDate" />
+
+            <TextView
+                android:id="@+id/neo_"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="3" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" >
+
+            <TextView
+                android:id="@+id/textView9"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="OldUnit" />
+
+            <TextView
+                android:id="@+id/textView10"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="NewUnit" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="8" >
+
+            <RadioGroup
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1" >
+
+                <RadioButton
+                    android:id="@+id/M"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="metre" />
+
+                <RadioButton
+                    android:id="@+id/DM"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="decimetre" />
+
+                <RadioButton
+                    android:id="@+id/CM"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="centimetre" />
+
+                <RadioButton
+                    android:id="@+id/MM"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="millimetre" />
+            </RadioGroup>
+
+            <RadioGroup
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1">
+
+                <RadioButton
+                    android:id="@+id/m"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="metre" />
+
+                <RadioButton
+                    android:id="@+id/dm"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="decimetre" />
+
+                <RadioButton
+                    android:id="@+id/cm"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="centimetre" />
+
+                <RadioButton
+                    android:id="@+id/mm"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="millimetre" />
+            </RadioGroup>
+        </TableRow>
+
+    </TableLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_vol.xml

@@ -0,0 +1,143 @@
+<?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">
+
+    <TableLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1">
+
+            <TextView
+                android:id="@+id/OLD"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:text="OldDate" />
+
+            <EditText
+                android:id="@+id/old_"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="3"
+                tools:ignore="SpeakableTextPresentCheck" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1">
+
+            <TextView
+                android:id="@+id/NEW"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:text="NewDate" />
+
+            <TextView
+                android:id="@+id/neo_"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="3" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <TextView
+                android:id="@+id/textView9"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="OldVolume" />
+
+            <TextView
+                android:id="@+id/textView10"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="NewVolume" />
+        </TableRow>
+
+        <TableRow
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="8">
+
+            <RadioGroup
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1">
+
+                <RadioButton
+                    android:id="@+id/M"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="m^3" />
+
+                <RadioButton
+                    android:id="@+id/DM"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="dm^3" />
+
+                <RadioButton
+                    android:id="@+id/CM"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="cm^3" />
+
+                <RadioButton
+                    android:id="@+id/MM"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="mm^3" />
+            </RadioGroup>
+
+            <RadioGroup
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_weight="1">
+
+                <RadioButton
+                    android:id="@+id/m"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="m^3" />
+
+                <RadioButton
+                    android:id="@+id/dm"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="dm^3" />
+
+                <RadioButton
+                    android:id="@+id/cm"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="cm^3" />
+
+                <RadioButton
+                    android:id="@+id/mm"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="mm^3" />
+            </RadioGroup>
+        </TableRow>
+
+    </TableLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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>

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>

app/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.MyCalculator" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

app/src/main/res/values/colors.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">MyCalculator</string>
+</resources>

app/src/main/res/values/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.MyCalculator" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

app/src/test/java/com/example/mycalculator/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.mycalculator;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

build.gradle

@@ -0,0 +1,17 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath "com.android.tools.build:gradle:7.0.2"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

gradle.properties

@@ -0,0 +1,19 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Mon Sep 06 16:30:04 CST 2021
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# 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
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1,10 @@
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+        jcenter() // Warning: this repository is going to shut down soon
+    }
+}
+rootProject.name = "MyCalculator"
+include ':app'