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Common flow child flow demo
Refs: #11
1 parent 62a875e commit 4704be0

32 files changed

Lines changed: 758 additions & 9 deletions

‎.github/workflows/check.yml‎

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@@ -33,7 +33,7 @@ jobs:
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- name: Grant execute permission for gradlew
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run: chmod +x gradlew
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- name: Check with gradle
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run: ./gradlew runUnitTests :examples:lce:assembleDebug :examples:welcome:welcome:assembleDebug :examples:multi:navbar:assembleDebug :examples:multi:parallel:assembleDebug :examples:lifecycle:assembleDebug :examples:di:app:assembleDebug :examples:commonflow:assembleDebug --no-daemon --no-configuration-cache
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run: ./gradlew runUnitTests :examples:lce:assembleDebug :examples:welcome:welcome:assembleDebug :examples:multi:navbar:assembleDebug :examples:multi:parallel:assembleDebug :examples:lifecycle:assembleDebug :examples:di:app:assembleDebug :examples:book:app:assembleDebug :examples:book:book:demo:assembleDebug --no-daemon --no-configuration-cache
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- name: Upload problems report
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uses: actions/upload-artifact@v4
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if: failure()

‎build.gradle.kts‎

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@@ -129,7 +129,7 @@ tasks.register("runDiExampleUnitTests") {
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}
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tasks.register("runBooksExampleUnitTests") {
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dependsOn(":examples:books:item:testDebugUnitTest")
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dependsOn(":examples:books:book:testDebugUnitTest")
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dependsOn(":examples:books:app:testDebugUnitTest")
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description = "Run unit tests for books app."
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}

‎examples/books/app/src/test/kotlin/com/motorro/statemachine/books/app/state/ItemListStateTest.kt‎

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@@ -53,8 +53,8 @@ internal class ItemListStateTest : BaseStateTest() {
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state.start(stateMachine)
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coVerify(ordering = Ordering.ORDERED) {
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stateMachine.setUiState(MainUiState.Loading)
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stateMachine.setUiState(MainUiState.Master(persistentListOf(BOOK_1)))
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stateMachine.setUiState(MainUiState.List.Loading)
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stateMachine.setUiState(MainUiState.List.Master(persistentListOf(BOOK_1)))
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}
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}
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@@ -65,8 +65,8 @@ internal class ItemListStateTest : BaseStateTest() {
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state.start(stateMachine)
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coVerify(ordering = Ordering.ORDERED) {
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stateMachine.setUiState(MainUiState.Master(persistentListOf(BOOK_2)))
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stateMachine.setUiState(MainUiState.Master(persistentListOf(BOOK_1)))
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stateMachine.setUiState(MainUiState.List.Master(persistentListOf(BOOK_2)))
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stateMachine.setUiState(MainUiState.List.Master(persistentListOf(BOOK_1)))
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}
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}
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items.emit(persistentListOf(BOOK_2))
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coVerify(ordering = Ordering.ORDERED) {
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stateMachine.setUiState(MainUiState.Loading)
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stateMachine.setUiState(MainUiState.Master(persistentListOf(BOOK_1)))
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stateMachine.setUiState(MainUiState.Master(persistentListOf(BOOK_2)))
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stateMachine.setUiState(MainUiState.List.Loading)
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stateMachine.setUiState(MainUiState.List.Master(persistentListOf(BOOK_1)))
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stateMachine.setUiState(MainUiState.List.Master(persistentListOf(BOOK_2)))
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}
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}
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‎examples/books/book/demo/.gitignore‎

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/build

‎examples/books/book/demo/build.gradle.kts‎

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/*
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* Copyright 2026 Nikolai Kotchetkov.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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@file:Suppress("unused")
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import org.jetbrains.kotlin.gradle.dsl.JvmTarget
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/*
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* Copyright 2022 Nikolai Kotchetkov.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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plugins {
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id("com.android.application")
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id("org.jetbrains.kotlin.plugin.compose")
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alias(libs.plugins.google.ksp)
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alias(libs.plugins.hilt)
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}
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val versionCode: String by project.extra
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val versionName: String by project.extra
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val androidMinSdkVersion: Int by project.extra
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val androidCompileSdkVersion: Int by project.extra
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val androidTargetSdkVersion: Int by project.extra
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android {
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compileSdk = androidCompileSdkVersion
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defaultConfig {
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applicationId = "com.motorro.statemachine.books.book.demo"
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minSdk = androidMinSdkVersion
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targetSdk = androidTargetSdkVersion
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versionCode = versionCode
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versionName = versionName
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testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
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vectorDrawables {
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useSupportLibrary = true
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}
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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(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
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}
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}
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compileOptions {
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isCoreLibraryDesugaringEnabled = true
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sourceCompatibility = JavaVersion.VERSION_17
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targetCompatibility = JavaVersion.VERSION_17
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}
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kotlin {
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compilerOptions {
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jvmTarget.set(JvmTarget.JVM_17)
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}
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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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excludes += "/META-INF/{AL2.0,LGPL2.1}"
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}
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}
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namespace = "com.motorro.statemachine.books.book.demo"
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}
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dependencies {
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implementation(project(":commonstatemachine"))
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implementation(project(":commonflow:data"))
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implementation(project(":commonflow:compose"))
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implementation(project(":commonflow:viewmodel"))
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implementation(project(":examples:commoncore"))
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implementation(project(":examples:androidcore"))
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implementation(project(":examples:books:domain"))
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implementation(project(":examples:books:book"))
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coreLibraryDesugaring(libs.desugaring)
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implementation(libs.androidx.core)
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implementation(libs.androidx.lifecycle.runtime)
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implementation(libs.androidx.lifecycle.livedata)
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implementation(libs.androidx.lifecycle.viewmodel)
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implementation(libs.kotlin.immutable)
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implementation(libs.kotlin.coroutines.core)
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implementation(libs.kotlin.coroutines.android)
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implementation(platform(libs.compose.bom))
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implementation(libs.bundles.compose.core)
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implementation(libs.compose.activity)
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implementation(libs.compose.viewmodel)
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implementation(libs.compose.foundation)
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implementation(libs.compose.foundation.layouts)
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implementation(libs.compose.material.icons)
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implementation(libs.hilt.android)
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implementation(libs.hilt.compose)
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ksp(libs.hilt.compiler)
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ksp(libs.hilt.compiler.androidx)
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debugImplementation(libs.compose.tooling)
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}

‎examples/books/book/demo/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/books/book/demo/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<!--
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~ Copyright 2022 Nikolai Kotchetkov.
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~ Licensed under the Apache License, Version 2.0 (the "License");
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~ you may not use this file except in compliance with the License.
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~ You may obtain a copy of the License at
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~ http://www.apache.org/licenses/LICENSE-2.0
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~ Unless required by applicable law or agreed to in writing, software
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~ distributed under the License is distributed on an "AS IS" BASIS,
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~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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~ See the License for the specific language governing permissions and
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~ limitations under the License.
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-->
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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:name=".App"
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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.Book">
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<activity
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android:name=".MainActivity"
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android:exported="true"
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android:theme="@style/Theme.Book">
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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>

‎examples/books/book/demo/src/main/kotlin/com/motorro/statemachine/books/book/demo/App.kt‎

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/*
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* Copyright 2026 Nikolai Kotchetkov.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.motorro.statemachine.books.book.demo
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import android.app.Application
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import dagger.hilt.android.HiltAndroidApp
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import timber.log.Timber
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@HiltAndroidApp
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class App : Application() {
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override fun onCreate() {
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super.onCreate()
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setupLogger()
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}
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private fun setupLogger() {
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Timber.plant(Timber.DebugTree())
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}
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}

‎examples/books/book/demo/src/main/kotlin/com/motorro/statemachine/books/book/demo/MainActivity.kt‎

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/*
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* Copyright 2026 Nikolai Kotchetkov.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.motorro.statemachine.books.book.demo
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import android.os.Bundle
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import androidx.activity.ComponentActivity
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import androidx.activity.enableEdgeToEdge
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import com.motorro.commonstatemachine.flow.viewmodel.setStateMachineContent
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import com.motorro.statemachine.androidcore.ui.theme.CommonStateMachineTheme
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import com.motorro.statemachine.books.book.api.BookGesture
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import com.motorro.statemachine.books.book.api.BookInput
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import com.motorro.statemachine.books.book.api.BookUiState
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import com.motorro.statemachine.books.book.ui.BookScreen
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import dagger.hilt.android.AndroidEntryPoint
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import dagger.hilt.android.lifecycle.withCreationCallback
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@AndroidEntryPoint
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class MainActivity : ComponentActivity() {
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override fun onCreate(savedInstanceState: Bundle?) {
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enableEdgeToEdge()
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super.onCreate(savedInstanceState)
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setStateMachineContent<BookGesture, BookUiState, Unit, MainViewModel>(
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extrasProducer = {
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defaultViewModelCreationExtras.withCreationCallback<MainViewModel.Factory> {
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it.create(BookInput(BOOK.id, BOOK.title))
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}
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},
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content = { state, onGesture ->
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CommonStateMachineTheme {
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BookScreen(state, onGesture)
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}
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}
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)
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}
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}

‎examples/books/book/demo/src/main/kotlin/com/motorro/statemachine/books/book/demo/MainViewModel.kt‎

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/*
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* Copyright 2026 Nikolai Kotchetkov.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
8+
* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.motorro.statemachine.books.book.demo
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import com.motorro.commonstatemachine.flow.viewmodel.CommonFlowViewModel
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import com.motorro.statemachine.books.book.api.BookApi
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import com.motorro.statemachine.books.book.api.BookGesture
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import com.motorro.statemachine.books.book.api.BookInput
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import com.motorro.statemachine.books.book.api.BookUiState
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import dagger.assisted.Assisted
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import dagger.assisted.AssistedFactory
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import dagger.assisted.AssistedInject
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import dagger.hilt.android.lifecycle.HiltViewModel
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@HiltViewModel(assistedFactory = MainViewModel.Factory::class)
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class MainViewModel @AssistedInject internal constructor(
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@Assisted input: BookInput,
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bookApi: BookApi
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) : CommonFlowViewModel<BookGesture, BookUiState, BookInput, Unit>(
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api = bookApi,
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init = input
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) {
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@AssistedFactory
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interface Factory {
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fun create(input: BookInput): MainViewModel
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}
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}

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