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SmartToolFactorySmartToolFactory
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start shared transition tutorials
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‎Tutorial3-1Transitions/.gitignore

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/build

‎Tutorial3-1Transitions/build.gradle

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plugins {
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id 'com.android.application'
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id 'kotlin-android'
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id 'kotlin-android-extensions'
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id 'kotlin-kapt'
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}
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android {
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compileSdkVersion 30
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buildToolsVersion "30.0.2"
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defaultConfig {
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applicationId "com.smarttoolfactory.tutorial3_1transitions"
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minSdkVersion 21
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targetSdkVersion 30
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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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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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dataBinding = true
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}
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}
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dependencies {
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implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
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implementation 'androidx.core:core-ktx:1.3.2'
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implementation 'androidx.appcompat:appcompat:1.2.0'
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implementation 'com.google.android.material:material:1.2.1'
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implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
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implementation 'androidx.viewpager2:viewpager2:1.0.0'
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implementation 'io.reactivex.rxjava3:rxjava:3.0.6'
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// LifeCycle
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implementation "androidx.lifecycle:lifecycle-common-java8:2.2.0"
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// Coroutines
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7"
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.7"
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// Dynamic Animation
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implementation "androidx.dynamicanimation:dynamicanimation:1.0.0"
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// Leak Canary
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debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.5'
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testImplementation 'junit:junit:4.+'
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androidTestImplementation 'androidx.test.ext:junit:1.1.2'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
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}

‎Tutorial3-1Transitions/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

‎Tutorial3-1Transitions/src/androidTest/java/com/smarttoolfactory/tutorial3_1transitions/ExampleInstrumentedTest.kt

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package com.smarttoolfactory.tutorial3_1transitions
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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.smarttoolfactory.tutorial3_1transitions", appContext.packageName)
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}
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}

‎Tutorial3-1Transitions/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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package="com.smarttoolfactory.tutorial3_1transitions">
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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.AnimationTutorials">
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<activity android:name=".MainActivity">
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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>

‎Tutorial3-1Transitions/src/main/java/com/smarttoolfactory/tutorial3_1transitions/MainActivity.kt

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package com.smarttoolfactory.tutorial3_1transitions
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import android.content.Intent
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import android.view.View
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import androidx.databinding.DataBindingUtil
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import androidx.recyclerview.widget.DividerItemDecoration
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import androidx.recyclerview.widget.LinearLayoutManager
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import com.smarttoolfactory.tutorial3_1transitions.adapter.BaseAdapter
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import com.smarttoolfactory.tutorial3_1transitions.adapter.ChapterSelectionAdapter
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import com.smarttoolfactory.tutorial3_1transitions.adapter.model.ActivityClassModel
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import com.smarttoolfactory.tutorial3_1transitions.databinding.ActivityMainBinding
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import java.util.ArrayList
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class MainActivity : AppCompatActivity(), BaseAdapter.OnRecyclerViewItemClickListener {
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private val activityClassModels = ArrayList<ActivityClassModel>()
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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title = "MainActivity"
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val activityMainBinding =
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DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main)
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addChapters()
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val recyclerView = activityMainBinding.recyclerView
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recyclerView.apply {
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// Use fixed size for performance
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setHasFixedSize(true)
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// use a linear layout manager
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layoutManager = LinearLayoutManager(this@MainActivity)
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// Add vertical divider
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addItemDecoration(
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DividerItemDecoration(
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this@MainActivity,
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DividerItemDecoration.VERTICAL
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)
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)
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// Add Adapter
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recyclerView.adapter = ChapterSelectionAdapter(activityClassModels).apply {
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setOnItemClickListener(this@MainActivity)
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}
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}
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}
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private fun addChapters() {
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// Add Activities to list to be displayed on RecyclerView
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// activityClassModels.add(
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// ActivityClassModel(
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// Activity1_1Basics::class.java,
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// getString(R.string.activity1_1)
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// )
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// )
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}
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@Override
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override fun onItemClicked(view: View, position: Int) {
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Intent(this@MainActivity, activityClassModels[position].clazz).also {
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startActivity(it)
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}
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}
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}

‎Tutorial3-1Transitions/src/main/java/com/smarttoolfactory/tutorial3_1transitions/adapter/BaseAdapter.kt

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package com.smarttoolfactory.tutorial3_1transitions.adapter
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.databinding.DataBindingUtil
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import androidx.databinding.ViewDataBinding
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import androidx.recyclerview.widget.RecyclerView
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import com.smarttoolfactory.tutorial3_1transitions.BR
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/**
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* Base Adapter class for creating [RecyclerView.Adapter]
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*
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* Process to create Adapter is listed below:
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* * 1- Inflate layout and create binding object with DataBindingUtil.inflate
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* inside onCreateViewHolder() and create ViewHolder
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*
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* * 2- Get binding object inside constructor of MyViewHolder constructor
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*
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* * 3- Bind items to rows inside onCreateViewHolder() method
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*
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*/
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abstract class BaseAdapter : RecyclerView.Adapter<BaseAdapter.MyViewHolder>() {
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private var listener: OnRecyclerViewItemClickListener? = null
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inner class MyViewHolder// TODO #2
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(// each data item is just a string in this case
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private val binding: ViewDataBinding
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) : RecyclerView.ViewHolder(binding.root), View.OnClickListener {
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// TODO #3
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internal fun bind(obj: Any) {
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binding.setVariable(BR.obj, obj)
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binding.executePendingBindings()
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// Set click listener
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itemView.setOnClickListener(this)
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}
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override fun onClick(v: View) {
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listener?.run {
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onItemClicked(v, layoutPosition)
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}
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}
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}
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// TODO #1
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
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// create a new view
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val layoutInflater = LayoutInflater.from(parent.context)
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val binding =
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DataBindingUtil.inflate<ViewDataBinding>(
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layoutInflater,
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getLayoutIdForType(viewType),
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parent,
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false
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)
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// set the view's size, margins, paddings and layout parameters
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return MyViewHolder(binding)
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}
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// TODO #3
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override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
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holder.bind(getDataAtPosition(position))
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}
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// TODO #3
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/**
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* Get data in position for RecyclerView row. This method is invoked inside
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* onBindViewHolder() method of RecyclerView
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*
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* @param position indicates the item for the current row
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* @return data for the current row
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*/
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abstract fun getDataAtPosition(position: Int): Any
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// TODO #1
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/**
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* Get id of layout from R. This method is invoked from onCreateViewHolder method of Adapter
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*
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* @param viewType id of layout row of RecyclerView
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* @return id of layout
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*/
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abstract fun getLayoutIdForType(viewType: Int): Int
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/**
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* RecyclerViewClickListener interface helps user to set a clickListener to the
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* RecyclerView. By setting this listener, any item of Recycler View can respond
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* to any interaction.
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*/
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interface OnRecyclerViewItemClickListener {
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/**
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* This is a callback method that be overridden by the class that implements this
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* interface
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*/
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fun onItemClicked(view: View, position: Int)
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}
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fun setOnItemClickListener(listener: OnRecyclerViewItemClickListener) {
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this.listener = listener
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}
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}

‎Tutorial3-1Transitions/src/main/java/com/smarttoolfactory/tutorial3_1transitions/adapter/ChapterSelectionAdapter.kt

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package com.smarttoolfactory.tutorial3_1transitions.adapter
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import com.smarttoolfactory.tutorial3_1transitions.adapter.model.ActivityClassModel
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/**
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* Process to create Adapter is listed below:
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* * 1- Inflate layout and create binding object with DataBindingUtil.inflate
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* inside onCreateViewHolder() and create ViewHolder
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*
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* * 2- Get binding object inside constructor of MyViewHolder constructor
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*
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* * 3- Bind items to rows inside onCreateViewHolder() method
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*
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*/
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// Provide a suitable constructor (depends on the kind of data set)
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class ChapterSelectionAdapter(private val data: List<ActivityClassModel>) : BaseAdapter() {
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override fun getDataAtPosition(position: Int): Any {
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return data[position]
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}
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override fun getLayoutIdForType(viewType: Int): Int {
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return R.layout.row_layout
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}
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override fun getItemCount(): Int {
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return data.size
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}
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}
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‎Tutorial3-1Transitions/src/main/java/com/smarttoolfactory/tutorial3_1transitions/adapter/model/ActivityClassModel.kt

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package com.smarttoolfactory.tutorial3_1transitions.adapter.model
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data class ActivityClassModel(val clazz: Class<*>, val description: String = clazz.name)

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