Voice Calculator Added [GSSoC'23] #4159

Flutter Projects/voice_calculator/.gitignore

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+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

Flutter Projects/voice_calculator/.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled.
+
+version:
+ revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ channel: stable
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+ platforms:
+ - platform: root
+ create_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ base_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ - platform: android
+ create_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ base_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ - platform: ios
+ create_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ base_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ - platform: linux
+ create_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ base_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ - platform: macos
+ create_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ base_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ - platform: web
+ create_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+ base_revision: f468f3366c26a5092eb964a230ce7892fda8f2f8
+
+ # User provided section
+
+ # List of Local paths (relative to this file) that should be
+ # ignored by the migrate tool.
+ #
+ # Files that are not part of the templates will be ignored by default.
+ unmanaged_files:
+ - 'lib/main.dart'
+ - 'ios/Runner.xcodeproj/project.pbxproj'

Flutter Projects/voice_calculator/README.md

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+# voice_calculator
+
+Voice Calculator is a Flutter application that allows users to perform calculations using their voice input. It provides a user interface with buttons for manual input as well as a voice recognition feature for hands-free operation.Here is an easy to use voice calculator to calculate numbers using multi operator and numbers! -all numeric number using (zero, one, two, three, four, five, six, seven, eight, nine, ten) -all operator +addition-plus,add +subtraction- minus, subtract +multiplication-multiply, multiply by, into, times +divide- divide, divide by -equal operator +speaking equal at last and using press equal button.
+
+##Features
+- Manual input: Users can enter mathematical expressions using the provided buttons on the 
+ calculator interface.
+- Voice recognition: The app utilizes the SpeechToText plugin to convert user's spoken words 
+ into text and perform calculations based on the recognized input.
+- Real-time output: The app displays both the user's input and the calculated result in real- 
+ time.
+- Dark and light themes: Users can switch between dark and light themes for the calculator 
+ interface.
+
+##Prerequisites
+
+- Before running the application, make sure you have the following:
+
+- Flutter SDK: Install Flutter by following the instructions provided in the official Flutter - 
+ documentation.
+- Android or iOS device/emulator: Ensure that you have a physical or virtual device/emulator 
+ set up to run the Flutter application.
+
+##Installation:
+- Clone the repository:
+ - git clone https://github.com/your-username/voice-calculator.git
+- Change to the project directory:
+ - cd voice-calculator
+- Install the dependencies:
+ - flutter pub get
+ - Run the application:
+ - flutter run
+- By following all the steps The application should launch on your connected device/emulator.
+ To run the project, use the following command:
+
+
+To run the project, use the following command:
+
+```bash
+flutter run
+```
+
+##Usage:
+- On the calculator interface, you can manually enter mathematical expressions by tapping the 
+ buttons corresponding to the numbers and operators.
+ To perform calculations using voice input, tap the microphone button. Speak the mathematical 
+ expression clearly, and the app will convert it into text and display the result.
+ The calculated result will be shown in real-time in the output section of the interface.
+
+##Contributing:
+- Contributions to the Voice Calculator project are welcome. If you encounter any bugs, have - 
+ suggestions for improvements, or would like to add new features, please open an issue or 
+ submit a pull request on the project's GitHub repository.
+
+##Acknowledgements:
+- The Voice Calculator app utilizes the speech_to_text package for speech recognition 
+ functionality.
+- The mathematical expression parsing and evaluation are performed using the math_parser 
+ package.
+
+##Contact
+- For any inquiries or additional information, please contact [[email protected]].

Flutter Projects/voice_calculator/analysis_options.yaml

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+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+ # The lint rules applied to this project can be customized in the
+ # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+ # included above or to enable additional rules. A list of all available lints
+ # and their documentation is published at
+ # https://dart-lang.github.io/linter/lints/index.html.
+ #
+ # Instead of disabling a lint rule for the entire project in the
+ # section below, it can also be suppressed for a single line of code
+ # or a specific dart file by using the `// ignore: name_of_lint` and
+ # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+ # producing the lint.
+ rules:
+ # avoid_print: false # Uncomment to disable the `avoid_print` rule
+ # prefer_single_quotes: true # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

Flutter Projects/voice_calculator/android/.gitignore

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+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks

Flutter Projects/voice_calculator/android/app/build.gradle

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+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+ localPropertiesFile.withReader('UTF-8') { reader ->
+ localProperties.load(reader)
+ }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+ throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+ flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+ flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+ namespace "com.example.voice_calculator"
+ compileSdkVersion flutter.compileSdkVersion
+ ndkVersion flutter.ndkVersion
+
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_1_8
+ targetCompatibility JavaVersion.VERSION_1_8
+ }
+
+ kotlinOptions {
+ jvmTarget = '1.8'
+ }
+
+ sourceSets {
+ main.java.srcDirs += 'src/main/kotlin'
+ }
+
+ defaultConfig {
+ // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+ applicationId "com.example.voice_calculator"
+ // You can update the following values to match your application needs.
+ // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
+ minSdkVersion flutter.minSdkVersion
+ targetSdkVersion flutter.targetSdkVersion
+ versionCode flutterVersionCode.toInteger()
+ versionName flutterVersionName
+ }
+
+ buildTypes {
+ release {
+ // TODO: Add your own signing config for the release build.
+ // Signing with the debug keys for now, so `flutter run --release` works.
+ signingConfig signingConfigs.debug
+ }
+ }
+}
+
+flutter {
+ source '../..'
+}
+
+dependencies {
+ implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}

Flutter Projects/voice_calculator/android/app/src/debug/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+ <!-- The INTERNET permission is required for development. Specifically,
+ the Flutter tool needs it to communicate with the running application
+ to allow setting breakpoints, to provide hot reload, etc.
+ -->
+ <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

Flutter Projects/voice_calculator/android/app/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+ <application
+ android:label="voice_calculator"
+ android:name="${applicationName}"
+ android:icon="@mipmap/ic_launcher">
+ <activity
+ android:name=".MainActivity"
+ android:exported="true"
+ android:launchMode="singleTop"
+ android:theme="@style/LaunchTheme"
+ android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+ android:hardwareAccelerated="true"
+ android:windowSoftInputMode="adjustResize">
+ <!-- Specifies an Android theme to apply to this Activity as soon as
+ the Android process has started. This theme is visible to the user
+ while the Flutter UI initializes. After that, this theme continues
+ to determine the Window background behind the Flutter UI. -->
+ <meta-data
+ android:name="io.flutter.embedding.android.NormalTheme"
+ android:resource="@style/NormalTheme"
+ />
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN"/>
+ <category android:name="android.intent.category.LAUNCHER"/>
+ </intent-filter>
+ </activity>
+ <!-- Don't delete the meta-data below.
+ This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+ <meta-data
+ android:name="flutterEmbedding"
+ android:value="2" />
+ </application>
+</manifest>

Flutter Projects/voice_calculator/android/app/src/main/kotlin/com/example/voice_calculator/MainActivity.kt

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+package com.example.voice_calculator
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}

Flutter Projects/voice_calculator/android/app/src/main/res/drawable-v21/launch_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+ <item android:drawable="?android:colorBackground" />
+
+ <!-- You can insert your own image assets here -->
+ <!-- <item>
+ <bitmap
+ android:gravity="center"
+ android:src="@mipmap/launch_image" />
+ </item> -->
+</layer-list>

Flutter Projects/voice_calculator/android/app/src/main/res/drawable/launch_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+ <item android:drawable="@android:color/white" />
+
+ <!-- You can insert your own image assets here -->
+ <!-- <item>
+ <bitmap
+ android:gravity="center"
+ android:src="@mipmap/launch_image" />
+ </item> -->
+</layer-list>

Flutter Projects/voice_calculator/android/app/src/main/res/values-night/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+ <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+ <!-- Show a splash screen on the activity. Automatically removed when
+ the Flutter engine draws its first frame -->
+ <item name="android:windowBackground">@drawable/launch_background</item>
+ </style>
+ <!-- Theme applied to the Android Window as soon as the process has started.
+ This theme determines the color of the Android Window while your
+ Flutter UI initializes, as well as behind your Flutter UI while its
+ running.
+
+ This Theme is only used starting with V2 of Flutter's Android embedding. -->
+ <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+ <item name="android:windowBackground">?android:colorBackground</item>
+ </style>
+</resources>

Flutter Projects/voice_calculator/android/app/src/main/res/values/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+ <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+ <!-- Show a splash screen on the activity. Automatically removed when
+ the Flutter engine draws its first frame -->
+ <item name="android:windowBackground">@drawable/launch_background</item>
+ </style>
+ <!-- Theme applied to the Android Window as soon as the process has started.
+ This theme determines the color of the Android Window while your
+ Flutter UI initializes, as well as behind your Flutter UI while its
+ running.
+
+ This Theme is only used starting with V2 of Flutter's Android embedding. -->
+ <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+ <item name="android:windowBackground">?android:colorBackground</item>
+ </style>
+</resources>

Flutter Projects/voice_calculator/android/app/src/profile/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+ <!-- The INTERNET permission is required for development. Specifically,
+ the Flutter tool needs it to communicate with the running application
+ to allow setting breakpoints, to provide hot reload, etc.
+ -->
+ <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>