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‎AdvancedBarGraph/.gitignore

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

‎AdvancedBarGraph/.idea/.gitignore

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‎AdvancedBarGraph/.idea/compiler.xml

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‎AdvancedBarGraph/.idea/gradle.xml

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‎AdvancedBarGraph/.idea/misc.xml

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‎AdvancedBarGraph/.idea/vcs.xml

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‎AdvancedBarGraph/app/.gitignore

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/build

‎AdvancedBarGraph/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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}
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android {
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compileSdk 32
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defaultConfig {
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applicationId "prateek_gupta.advanced_bar_graph"
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minSdk 21
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targetSdk 32
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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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// For Data Binding and View Binding
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buildFeatures{
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dataBinding=true
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viewBinding=true
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}
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}
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dependencies {
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implementation 'androidx.core:core-ktx:1.7.0'
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implementation 'androidx.appcompat:appcompat:1.5.1'
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implementation 'com.google.android.material:material:1.7.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
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testImplementation 'junit:junit:4.13.2'
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androidTestImplementation 'androidx.test.ext:junit:1.1.4'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
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// Data binding
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annotationProcessor "androidx.databinding:databinding-common:7.3.1"
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}

‎AdvancedBarGraph/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

‎AdvancedBarGraph/app/src/androidTest/java/prateek_gupta/advanced_bar_graph/ExampleInstrumentedTest.kt

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package prateek_gupta.advanced_bar_graph
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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("prateek_gupta.advanced_bar_graph", appContext.packageName)
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}
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}

‎AdvancedBarGraph/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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package="prateek_gupta.advanced_bar_graph">
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<application
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android:allowBackup="true"
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android:dataExtractionRules="@xml/data_extraction_rules"
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android:fullBackupContent="@xml/backup_rules"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/Theme.AdvancedBarGraph"
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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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<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>

‎AdvancedBarGraph/app/src/main/java/prateek_gupta/advanced_bar_graph/Adapter.kt

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package prateek_gupta.advanced_bar_graph
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import android.animation.ValueAnimator
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import android.view.LayoutInflater
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import android.view.ViewGroup
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import android.widget.TextView
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import androidx.recyclerview.widget.RecyclerView
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import prateek_gupta.advanced_bar_graph.databinding.BarGraphBinding
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class Adapter : RecyclerView.Adapter<Adapter.ViewHolder>() {
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var values: MutableList<Int> = ArrayList()
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var triggerAnimation = false
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class ViewHolder(binding: BarGraphBinding) :
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RecyclerView.ViewHolder(binding.root) {
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var binding: BarGraphBinding
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init {
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this.binding = binding
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}
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}
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
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return ViewHolder(
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BarGraphBinding.inflate(
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LayoutInflater.from(parent.context), parent, false
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)
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)
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}
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override fun onBindViewHolder(holder: ViewHolder, position: Int) {
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if (triggerAnimation) {
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startBarAnimation(values[position], 1000, holder.binding)
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}
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}
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override fun getItemCount(): Int {
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return values.size
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}
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fun startBarAnimation(
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value: Int, duration: Long,
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barGraphBinding: BarGraphBinding
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) {
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val barFullHeight: Float = barGraphBinding.bar.getPivotY()
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val scalingFactor = value.toFloat() / 100
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val translationHeight = barFullHeight * scalingFactor
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barGraphBinding.pin.animate().translationY(-translationHeight).duration = duration
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barGraphBinding.bar.animate().scaleY(scalingFactor).duration = duration
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barGraphBinding.value.animate().translationY(-translationHeight).duration = duration
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if ((barGraphBinding.value.text as String).toInt() == 0)
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startCountAnimation(
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value,
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barGraphBinding.value,
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duration
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)
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}
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private fun startCountAnimation(stop: Int, textView: TextView, duration: Long) {
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val animator = ValueAnimator.ofInt(0, stop)
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animator.duration = duration.toLong()
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animator.addUpdateListener { animation: ValueAnimator ->
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textView.text = animation.animatedValue.toString()
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}
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animator.start()
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}
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init {
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values.add(100)
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values.add(60)
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values.add(20)
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values.add(50)
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values.add(80)
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values.add(10)
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values.add(40)
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values.add(90)
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}
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}

‎AdvancedBarGraph/app/src/main/java/prateek_gupta/advanced_bar_graph/MainActivity.kt

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package prateek_gupta.advanced_bar_graph
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import android.os.Bundle
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import android.view.ViewTreeObserver.OnScrollChangedListener
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import androidx.appcompat.app.AppCompatActivity
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import androidx.recyclerview.widget.LinearLayoutManager
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import prateek_gupta.advanced_bar_graph.databinding.ActivityMainBinding
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class MainActivity : AppCompatActivity() {
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lateinit var binding: ActivityMainBinding
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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binding = ActivityMainBinding.inflate(layoutInflater)
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setContentView(binding.root)
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val values: MutableList<Int>
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values = ArrayList()
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values.add(100)
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values.add(60)
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values.add(20)
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values.add(50)
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values.add(80)
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values.add(60)
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values.add(40)
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values.add(90)
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val adapter = Adapter()
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binding.recyclerView.adapter = adapter
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binding.recyclerView.layoutManager = LinearLayoutManager(
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this, LinearLayoutManager.HORIZONTAL, false
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)
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binding.scrollView.viewTreeObserver.addOnScrollChangedListener(
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object : OnScrollChangedListener {
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override fun onScrollChanged() {
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if (binding.root.scrollY > 550) {
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binding.scrollView.viewTreeObserver.removeOnScrollChangedListener(this)
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for (i in 0 until binding.recyclerView.childCount) {
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if (i > (binding.recyclerView.layoutManager as
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LinearLayoutManager).findLastCompletelyVisibleItemPosition() + 1) {
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break
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}
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adapter.startBarAnimation(
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values[i], 1000,
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(binding.recyclerView.getChildViewHolder(
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binding.recyclerView.getChildAt(i)
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) as Adapter.ViewHolder).binding
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)
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}
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adapter.triggerAnimation = true
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}
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}
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})
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}
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}

‎AdvancedBarGraph/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:aapt="http://schemas.android.com/aapt"
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android:width="108dp"
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android:height="108dp"
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android:viewportWidth="108"
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android:viewportHeight="108">
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<path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
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<aapt:attr name="android:fillColor">
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<gradient
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android:endX="85.84757"
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android:endY="92.4963"
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android:startX="42.9492"
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android:startY="49.59793"
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android:type="linear">
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<item
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android:color="#44000000"
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android:offset="0.0" />
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<item
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android:color="#00000000"
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android:offset="1.0" />
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</gradient>
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</aapt:attr>
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</path>
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<path
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android:fillColor="#FFFFFF"
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android:fillType="nonZero"
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android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
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android:strokeWidth="1"
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android:strokeColor="#00000000" />
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</vector>

‎AdvancedBarGraph/app/src/main/res/drawable-v24/ic_pin.xml

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="24dp"
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android:height="100dp"
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android:viewportWidth="69"
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android:viewportHeight="379">
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<path
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android:pathData="M26.9,4.2c-4.3,2.4 -7.9,8.3 -7.9,12.7 0,5.4 3.5,10.9 8.5,13.3l4.5,2.2 0,173.3 0,173.3 2.5,-0 2.5,-0 0,-173.5 0,-173.4 3.5,-1.7c10.8,-5.1 11.1,-21 0.5,-26.4 -5,-2.6 -9.5,-2.5 -14.1,0.2z"
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android:fillColor="#000000"
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android:strokeColor="#00000000"/>
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</vector>

‎AdvancedBarGraph/app/src/main/res/drawable-v24/ic_rectangle.xml

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
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android:width="91dp"
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android:height="181dp"
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android:viewportWidth="91"
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android:viewportHeight="181">
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<path
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android:pathData="M1,91l0,90 45,-0 45,-0 0,-90 0,-90 -45,-0 -45,-0 0,90z"
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android:fillColor="#000000"
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android:strokeColor="#00000000"/>
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</vector>

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