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‎.gitignore

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# Built application files
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*.apk
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*.aar
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*.ap_
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*.aab
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# Files for the ART/Dalvik VM
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*.dex
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# Java class files
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*.class
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# Generated files
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bin/
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gen/
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out/
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# Uncomment the following line in case you need and you don't have the release build type files in your app
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# release/
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# Gradle files
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.gradle/
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build/
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# Local configuration file (sdk path, etc)
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local.properties
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# Proguard folder generated by Eclipse
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proguard/
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# Log Files
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*.log
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# Android Studio Navigation editor temp files
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.navigation/
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# Android Studio captures folder
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captures/
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# IntelliJ
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*.iml
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.idea/workspace.xml
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.idea/tasks.xml
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.idea/gradle.xml
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.idea/assetWizardSettings.xml
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.idea/dictionaries
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.idea/libraries
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# Android Studio 3 in .gitignore file.
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.idea/caches
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.idea/modules.xml
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# Comment next line if keeping position of elements in Navigation Editor is relevant for you
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.idea/navEditor.xml
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# Keystore files
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# Uncomment the following lines if you do not want to check your keystore files in.

‎.idea/.gitignore

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‎.idea/compiler.xml

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‎.idea/misc.xml

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‎Readme.md

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# Demo Internet Access App - Bookshelf App
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Simple app to demonstrate internet access.
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The App display asynchronously downloaded images of the books along with their titles in a vertical grid.
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In Addition it lets the user Search for Books
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Some goals
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- Use repository
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- Use Dependency Injection Container
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- use viewmodel
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- use uiState
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- use allow user to search
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### ScreenShots
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![|100](screenshot_01.png) ![|100](screenshot_02.png) ![|100](screenshot_03.png)
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<p style=float:left">
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<img src="screenshot_01.png" width="200" />
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<img src="screenshot_02.png" width="200" />
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<img src="screenshot_03.png" width="200" />
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</p>
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<p style=float:left">
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<img src="screenshot_04.png" width="200" />
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<img src="screenshot_05.png" width="200" />
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<img src="screenshot_06.png" width="200" />
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</p>
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---
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ref: demo-internet-access-bookshelf-app-android-kotlin-compose

‎app/.gitignore

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/build

‎app/build.gradle

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plugins {
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id 'com.android.application'
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id 'org.jetbrains.kotlin.android'
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id 'org.jetbrains.kotlin.plugin.serialization' version '1.7.20'
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}
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android {
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namespace 'com.example.bookshelf'
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compileSdk 33
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defaultConfig {
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applicationId "com.example.bookshelf"
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minSdk 26
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targetSdk 33
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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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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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minifyEnabled 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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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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composeOptions {
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kotlinCompilerExtensionVersion '1.2.0'
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}
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packagingOptions {
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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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}
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dependencies {
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implementation 'androidx.core:core-ktx:1.9.0'
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implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.5.1'
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implementation 'androidx.activity:activity-compose:1.6.1'
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implementation "androidx.compose.ui:ui:$compose_ui_version"
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implementation "androidx.compose.ui:ui-tooling-preview:$compose_ui_version"
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implementation 'androidx.compose.material:material:1.3.1'
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testImplementation 'junit:junit:4.13.2'
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androidTestImplementation 'androidx.test.ext:junit:1.1.5'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
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androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_ui_version"
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debugImplementation "androidx.compose.ui:ui-tooling:$compose_ui_version"
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debugImplementation "androidx.compose.ui:ui-test-manifest:$compose_ui_version"
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// viewmodel
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implementation "androidx.lifecycle:lifecycle-viewmodel-compose:2.5.1"
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// retrofit
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implementation "com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:0.8.0"
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implementation "com.squareup.retrofit2:retrofit:2.9.0"
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// json file
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implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.4.1"
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// images in json
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implementation "io.coil-kt:coil-compose:2.2.2"
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//Navigation
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implementation "androidx.navigation:navigation-compose:2.5.3"
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}

‎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

‎app/src/androidTest/java/com/example/bookshelf/ExampleInstrumentedTest.kt

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package com.example.bookshelf
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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.bookshelf", appContext.packageName)
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}
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}

‎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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<uses-permission android:name="android.permission.INTERNET"/>
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<application
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android:name=".BookshelfApplication"
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android:usesCleartextTraffic="true"
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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:supportsRtl="true"
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android:theme="@style/Theme.Bookshelf"
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tools:targetApi="31">
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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.Bookshelf">
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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>

‎app/src/main/java/com/example/bookshelf/BookshelfApplication.kt

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package com.example.bookshelf
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import android.app.Application
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import com.example.bookshelf.di.AppContainer
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import com.example.bookshelf.di.DefaultAppContainer
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class BookshelfApplication: Application() {
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/** AppContainer instance used by the rest of classes to obtain dependencies */
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lateinit var container: AppContainer
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override fun onCreate() {
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super.onCreate()
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container = DefaultAppContainer()
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}
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}

‎app/src/main/java/com/example/bookshelf/MainActivity.kt

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package com.example.bookshelf
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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.lifecycle.viewmodel.compose.viewModel
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import com.example.bookshelf.ui.BookshelfApp
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import com.example.bookshelf.ui.screens.home_screen.BookshelfViewModel
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import com.example.bookshelf.ui.theme.BookshelfTheme
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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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setContent {
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BookshelfTheme {
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val viewModel : BookshelfViewModel = viewModel(factory = BookshelfViewModel.Factory)
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BookshelfApp(viewModel)
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}
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}
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}
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}

‎app/src/main/java/com/example/bookshelf/data/BookshelfRepository.kt

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package com.example.bookshelf.data
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import com.example.bookshelf.model.Book
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/**
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* Repository retrieves volume data from underlying data source.
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*/
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interface BookshelfRepository {
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/** Retrieves list of books from underlying data source */
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// Notes: List<Book>? NULLABLE
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suspend fun getBooks(query: String): List<Book>?
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}

‎app/src/main/java/com/example/bookshelf/data/DefaultBookshelfRepository.kt

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package com.example.bookshelf.data
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import com.example.bookshelf.model.Book
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import com.example.bookshelf.network.BookshelfApiService
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/**
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* Default Implementation of repository that retrieves volumes data from underlying data source.
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*/
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class DefaultBookshelfRepository(
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private val bookshelfApiService: BookshelfApiService
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) : BookshelfRepository {
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/** Retrieves list of Volumes from underlying data source */
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// Notes: List<Book>? NULLABLE
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override suspend fun getBooks(query: String): List<Book>? {
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return try {
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val res = bookshelfApiService.getBooks(query)
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if (res.isSuccessful) {
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res.body()?.items ?: emptyList()
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} else {
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emptyList()
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}
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} catch (e: Exception) {
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e.printStackTrace()
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null
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}
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}
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}

‎app/src/main/java/com/example/bookshelf/di/AppContainer.kt

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package com.example.bookshelf.di
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import com.example.bookshelf.data.BookshelfRepository
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import com.example.bookshelf.network.BookshelfApiService
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/**
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* Dependency Injection container at the application level.
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*/
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interface AppContainer {
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val bookshelfApiService: BookshelfApiService
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val bookshelfRepository: BookshelfRepository
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}

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