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velmurugan-murugesan
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added drag and drop recyclerview
1 parent 3de9f8e commit 5e26673

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‎DragandDropRecyclerviewitemandroid/.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

‎DragandDropRecyclerviewitemandroid/app/.gitignore‎

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/build

‎DragandDropRecyclerviewitemandroid/app/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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}
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android {
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compileSdk 31
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defaultConfig {
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applicationId "com.velmurugan.draganddroprecyclerviewitemandroid"
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minSdk 24
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targetSdk 31
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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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viewBinding = true
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}
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}
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dependencies {
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implementation 'androidx.core:core-ktx:1.6.0'
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implementation 'androidx.appcompat:appcompat:1.3.1'
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implementation 'com.google.android.material:material:1.4.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
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testImplementation 'junit:junit:4.+'
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androidTestImplementation 'androidx.test.ext:junit:1.1.3'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
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}

‎DragandDropRecyclerviewitemandroid/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

‎DragandDropRecyclerviewitemandroid/app/src/androidTest/java/com/velmurugan/draganddroprecyclerviewitemandroid/ExampleInstrumentedTest.kt‎

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package com.velmurugan.draganddroprecyclerviewitemandroid
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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.velmurugan.draganddroprecyclerviewitemandroid", appContext.packageName)
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}
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}

‎DragandDropRecyclerviewitemandroid/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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package="com.velmurugan.draganddroprecyclerviewitemandroid">
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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.DragandDropRecyclerviewitemandroid">
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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>

‎DragandDropRecyclerviewitemandroid/app/src/main/java/com/velmurugan/draganddroprecyclerviewitemandroid/MainActivity.kt‎

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package com.velmurugan.draganddroprecyclerviewitemandroid
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import androidx.recyclerview.widget.ItemTouchHelper
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import androidx.recyclerview.widget.ItemTouchHelper.*
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import androidx.recyclerview.widget.RecyclerView
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import com.velmurugan.draganddroprecyclerviewitemandroid.databinding.ActivityMainBinding
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class MainActivity() : AppCompatActivity() {
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lateinit var binding: ActivityMainBinding
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lateinit var recyclerviewAdapter: RecyclerviewAdapter
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private val itemTouchHelper by lazy {
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val itemTouchCallback = object: ItemTouchHelper.SimpleCallback(UP or DOWN or START or END, 0) {
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override fun onMove(
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recyclerView: RecyclerView,
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viewHolder: RecyclerView.ViewHolder,
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target: RecyclerView.ViewHolder
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): Boolean {
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val recyclerviewAdapter = recyclerView.adapter as RecyclerviewAdapter
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val fromPosition = viewHolder.adapterPosition
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val toPosition = target.adapterPosition
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recyclerviewAdapter.moveItem(fromPosition, toPosition)
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recyclerviewAdapter.notifyItemMoved(fromPosition,toPosition)
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return true
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}
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override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
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}
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override fun onSelectedChanged(viewHolder: RecyclerView.ViewHolder?, actionState: Int) {
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super.onSelectedChanged(viewHolder, actionState)
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if(actionState == ACTION_STATE_DRAG) {
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viewHolder?.itemView?.scaleY = 1.3f
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viewHolder?.itemView?.alpha = 0.7f
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}
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}
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override fun clearView(
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recyclerView: RecyclerView,
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viewHolder: RecyclerView.ViewHolder
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) {
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super.clearView(recyclerView, viewHolder)
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viewHolder.itemView.scaleY = 1.0f
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viewHolder?.itemView?.alpha = 1.0f
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}
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}
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ItemTouchHelper(itemTouchCallback)
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}
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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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itemTouchHelper.attachToRecyclerView(binding.recyclerview)
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recyclerviewAdapter = RecyclerviewAdapter()
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recyclerviewAdapter.differ.submitList(getUsers())
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binding.recyclerview.adapter = recyclerviewAdapter
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}
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private fun getUsers() : List<User>{
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val users = mutableListOf<User>()
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users.add(User("John","Chennai",35))
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users.add(User("Mahesh","Pune",32))
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users.add(User("Palani","Bengalore",23))
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users.add(User("Kumar","Delhi",45))
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users.add(User("Dinesh","Mumbai",27))
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return users
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}
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}

‎DragandDropRecyclerviewitemandroid/app/src/main/java/com/velmurugan/draganddroprecyclerviewitemandroid/Model.kt‎

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package com.velmurugan.draganddroprecyclerviewitemandroid
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data class User(val name: String, val location: String, val age: Int)

‎DragandDropRecyclerviewitemandroid/app/src/main/java/com/velmurugan/draganddroprecyclerviewitemandroid/RecyclerviewAdapter.kt‎

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package com.velmurugan.draganddroprecyclerviewitemandroid
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import android.view.LayoutInflater
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import android.view.ViewGroup
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import androidx.recyclerview.widget.AsyncListDiffer
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import androidx.recyclerview.widget.DiffUtil
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import androidx.recyclerview.widget.RecyclerView
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import com.velmurugan.draganddroprecyclerviewitemandroid.databinding.AdapterItemBinding
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class RecyclerviewAdapter : RecyclerView.Adapter<RecyclerviewAdapter.ItemViewHolder>() {
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ItemViewHolder {
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val inflater = LayoutInflater.from(parent.context)
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val binding = AdapterItemBinding.inflate(inflater, parent, false)
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return ItemViewHolder(binding)
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}
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override fun onBindViewHolder(holder: ItemViewHolder, position: Int) {
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val movieItem= differ.currentList[position]
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holder.bindView(movieItem)
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}
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override fun getItemCount(): Int {
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return differ.currentList.size
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}
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private val differCallback = object: DiffUtil.ItemCallback<User>() {
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override fun areItemsTheSame(oldItem: User, newItem: User): Boolean {
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return oldItem == newItem
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}
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override fun areContentsTheSame(oldItem: User, newItem: User): Boolean {
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return oldItem == newItem
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}
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}
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val differ = AsyncListDiffer(this, differCallback)
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fun moveItem(fromPosition: Int, toPosition: Int) {
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val list = differ.currentList.toMutableList()
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val fromItem = list[fromPosition]
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list.removeAt(fromPosition)
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if (toPosition < fromPosition) {
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list.add(toPosition + 1 , fromItem)
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} else {
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list.add(toPosition - 1, fromItem)
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}
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differ.submitList(list)
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}
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inner class ItemViewHolder(val binding: AdapterItemBinding) : RecyclerView.ViewHolder(binding.root) {
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fun bindView(item: User) {
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binding.apply {
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textTitle.text = item.name
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textDesc.text = item.location
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}
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}
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}
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}
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‎DragandDropRecyclerviewitemandroid/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>

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