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‎examples/README.md

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### Idea examples
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* [plugin example](kotlin-dataframe-plugin-example) IDEA project with a
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[Kotlin DataFrame Compiler Plugin](https://kotlin.github.io/dataframe/compiler-plugin.html) example.
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* [android example](android-example) A minimal Android project showcasing integration with Kotlin DataFrame.
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Also includes [Kotlin DataFrame Compiler Plugin](https://kotlin.github.io/dataframe/compiler-plugin.html).
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* [movies](idea-examples/movies) Using extension properties [Access API](https://kotlin.github.io/dataframe/apilevels.html) to perform a data cleaning task
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* [titanic](idea-examples/titanic)
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* [youtube](idea-examples/youtube)

‎examples/android-example/.gitignore

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*.iml
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.gradle
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/local.properties
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/.idea/caches
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/.idea/libraries
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/.idea/modules.xml
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/.idea/workspace.xml
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/.idea/navEditor.xml
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/.idea/assetWizardSettings.xml
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.DS_Store
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/build
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/captures
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.externalNativeBuild
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.cxx
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local.properties

‎examples/android-example/README.md

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# 📱 Android Example
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A minimal Android project showcasing integration with **Kotlin DataFrame**.
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<p align="center">
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<img src="screen.jpg" alt="App screenshot" height="320"/>
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</p>
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It also includes the [Kotlin DataFrame Compiler Plugin](https://kotlin.github.io/dataframe/compiler-plugin.html).
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> **Note:** The generated [extension properties](https://kotlin.github.io/dataframe/extensionpropertiesapi.html)
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> may not be highlighted correctly in current stable versions of Android Studio due to limited IDE support.
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> However, they work as expected at runtime and during compilation.

‎examples/android-example/app/.gitignore

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/build

‎examples/android-example/app/build.gradle.kts

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plugins {
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alias(libs.plugins.android.application)
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alias(libs.plugins.kotlin.android)
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alias(libs.plugins.kotlin.compose)
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kotlin("plugin.dataframe") version "2.2.20-Beta1"
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}
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android {
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namespace = "com.example.myapplication"
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compileSdk = 36
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defaultConfig {
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applicationId = "com.example.myapplication"
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minSdk = 26
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targetSdk = 36
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versionCode = 1
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versionName = "1.0"
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testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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isMinifyEnabled = false
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proguardFiles(
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getDefaultProguardFile("proguard-android-optimize.txt"),
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"proguard-rules.pro"
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)
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}
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_1_8
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targetCompatibility = JavaVersion.VERSION_1_8
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}
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kotlinOptions {
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jvmTarget = "1.8"
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}
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buildFeatures {
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compose = true
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}
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packaging {
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resources {
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pickFirsts += listOf(
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"META-INF/AL2.0",
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"META-INF/LGPL2.1",
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"META-INF/ASL-2.0.txt",
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"META-INF/LICENSE.md",
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"META-INF/NOTICE.md",
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"META-INF/LGPL-3.0.txt",
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"META-INF/thirdparty-LICENSE",
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)
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excludes += listOf(
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"META-INF/kotlin-jupyter-libraries/libraries.json",
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"META-INF/{INDEX.LIST,DEPENDENCIES}",
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"{draftv3,draftv4}/schema",
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"arrow-git.properties",
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)
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}
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}
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}
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dependencies {
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implementation(libs.androidx.core.ktx)
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implementation(libs.androidx.lifecycle.runtime.ktx)
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implementation(libs.androidx.activity.compose)
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implementation(platform(libs.androidx.compose.bom))
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implementation(libs.androidx.ui)
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implementation(libs.androidx.ui.graphics)
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implementation(libs.androidx.ui.tooling.preview)
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implementation(libs.androidx.material3)
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testImplementation(libs.junit)
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androidTestImplementation(libs.androidx.junit)
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androidTestImplementation(libs.androidx.espresso.core)
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androidTestImplementation(platform(libs.androidx.compose.bom))
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androidTestImplementation(libs.androidx.ui.test.junit4)
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debugImplementation(libs.androidx.ui.tooling)
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debugImplementation(libs.androidx.ui.test.manifest)
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implementation("org.jetbrains.kotlinx:dataframe:1.0.0-dev-7831")
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}

‎examples/android-example/app/keks.ipynb

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{
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"cells": [
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{
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"cell_type": "code",
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"metadata": {
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"collapsed": true,
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"ExecuteTime": {
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"end_time": "2025-07-25T11:25:31.644164Z",
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"start_time": "2025-07-25T11:25:31.642561Z"
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}
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},
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"source": [
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""
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],
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"outputs": [],
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"execution_count": null
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},
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{
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"metadata": {
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"ExecuteTime": {
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"end_time": "2025-07-25T11:25:42.768839Z",
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"start_time": "2025-07-25T11:25:42.767006Z"
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}
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},
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"cell_type": "code",
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"source": "",
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"outputs": [],
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"execution_count": null
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},
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{
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"metadata": {
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"ExecuteTime": {
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"end_time": "2025-07-25T11:25:58.201672Z",
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"start_time": "2025-07-25T11:25:58.199772Z"
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}
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},
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"cell_type": "code",
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"source": "",
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"outputs": [],
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"execution_count": null
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},
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{
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"metadata": {
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"ExecuteTime": {
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"end_time": "2025-07-25T11:26:02.668074Z",
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"start_time": "2025-07-25T11:26:02.619066Z"
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}
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},
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"cell_type": "code",
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"source": "1",
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"outputs": [
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{
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"data": {
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"text/plain": [
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"1"
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]
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},
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"execution_count": 2,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"execution_count": 2
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},
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{
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"metadata": {},
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"cell_type": "code",
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"outputs": [],
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"execution_count": null,
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"source": ""
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Kotlin",
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"language": "kotlin",
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"name": "kotlin"
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},
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"language_info": {
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"name": "kotlin",
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"version": "1.9.23",
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"mimetype": "text/x-kotlin",
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"file_extension": ".kt",
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"pygments_lexer": "kotlin",
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"codemirror_mode": "text/x-kotlin",
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"nbconvert_exporter": ""
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},
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"ktnbPluginMetadata": {
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"projectDependencies": [
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"Simple_Kotlin_DataFrame_Application.app.main"
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],
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"projectLibraries": false
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}
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},
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"nbformat": 4,
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"nbformat_minor": 0
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}

‎examples/android-example/app/proguard-rules.pro

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

‎examples/android-example/app/src/androidTest/java/com/example/myapplication/ExampleInstrumentedTest.kt

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package com.example.myapplication
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import androidx.test.platform.app.InstrumentationRegistry
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.Assert.*
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* See [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.example.myapplication", appContext.packageName)
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}
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}

‎examples/android-example/app/src/main/AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools" >
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<application
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android:allowBackup="true"
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android:dataExtractionRules="@xml/data_extraction_rules"
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android:fullBackupContent="@xml/backup_rules"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/Theme.MyApplication" >
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<activity
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android:name=".MainActivity"
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android:exported="true"
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android:label="@string/app_name"
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android:theme="@style/Theme.MyApplication" >
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

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