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add first batch of Kotlin snippets for Firebase AI Logic (#630)
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‎.editorconfig

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[*.{java,kt}]
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max_line_length = 120
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indent_size = 2

‎build.gradle.kts

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id("com.google.firebase.firebase-perf") version "1.4.2" apply false
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id("androidx.navigation.safeargs") version "2.9.0" apply false
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id("com.github.ben-manes.versions") version "0.52.0" apply true
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alias(libs.plugins.composeCompiler) apply false
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}
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allprojects {

‎firebase-ai/.gitignore

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/build

‎firebase-ai/build.gradle.kts

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plugins {
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alias(libs.plugins.androidApplication)
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alias(libs.plugins.jetbrainsKotlinAndroid)
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alias(libs.plugins.composeCompiler)
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}
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android {
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namespace = "com.google.firebase.example.ai"
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compileSdk = 36
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defaultConfig {
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applicationId = "com.google.firebase.example.ai"
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minSdk = 21
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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_11
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targetCompatibility = JavaVersion.VERSION_11
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}
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kotlinOptions {
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jvmTarget = "11"
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}
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buildFeatures {
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compose = true
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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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implementation(libs.firebase.ai)
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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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}

‎firebase-ai/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

‎firebase-ai/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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<application
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android:allowBackup="true"
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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.Snippetsandroid">
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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.Snippetsandroid">
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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>

‎firebase-ai/src/main/java/com/google/firebase/example/ai/MainActivity.kt

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package com.google.firebase.example.ai
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import android.os.Bundle
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import androidx.activity.ComponentActivity
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import androidx.activity.compose.setContent
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import androidx.activity.enableEdgeToEdge
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.padding
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import androidx.compose.material3.Scaffold
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.tooling.preview.Preview
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import com.google.firebase.example.ai.ui.theme.SnippetsandroidTheme
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class MainActivity : ComponentActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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enableEdgeToEdge()
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setContent {
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SnippetsandroidTheme {
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Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
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Greeting(
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name = "Android",
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modifier = Modifier.padding(innerPadding)
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)
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}
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}
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}
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}
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}
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@Composable
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fun Greeting(name: String, modifier: Modifier = Modifier) {
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Text(
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text = "Hello $name!",
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modifier = modifier
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)
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}
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@Preview(showBackground = true)
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@Composable
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fun GreetingPreview() {
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SnippetsandroidTheme {
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Greeting("Android")
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}
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}

‎firebase-ai/src/main/java/com/google/firebase/example/ai/googleai/FirebaseAILogic.kt

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package com.google.firebase.example.ai.googleai
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import com.google.firebase.Firebase
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import com.google.firebase.ai.ai
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import com.google.firebase.ai.type.GenerativeBackend
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class FirebaseAILogic {
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private fun initialization() {
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// [START initialize_googleai_and_model]
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// Initialize the Gemini Developer API backend service
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// Create a `GenerativeModel` instance with a model that supports your use case
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val model = Firebase.ai(backend = GenerativeBackend.googleAI())
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.generativeModel("gemini-2.0-flash")
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// [END initialize_googleai_and_model]
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}
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}

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