Recycler View with View Binding in Android Kotlin.

I am creating a recycler view with an adapter using view binding in android kotlin.

So first of all we need to add a build feature in the build.Gradle(:app) file.

buildFeatures {
    viewBinding true
}

Now, let us start with the design part.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

   <androidx.recyclerview.widget.RecyclerView
       android:id="@+id/rv_recycler"
       app:layout_constraintTop_toTopOf="parent"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintEnd_toEndOf="parent"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       tools:listitem="@layout/item_recyler"/>
</androidx.constraintlayout.widget.ConstraintLayout>

I am creating a list of items for my recycler view.

item_recyler.xml

<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/card"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="8dp"
    android:layout_marginStart="10dp"
    android:layout_marginTop="10dp"
    app:cardCornerRadius="5dp"
    app:cardElevation="5dp"
    app:cardUseCompatPadding="true">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="16dp">

        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Name "
            android:textAppearance="?attr/textAppearanceHeadline6" />

        <TextView
            android:id="@+id/email"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Email"
            android:textAppearance="?attr/textAppearanceHeadline6" />


    </LinearLayout>

</com.google.android.material.card.MaterialCardView>

Now we will create a data class for recycler items.

Data. kt

package com.example.recyclerview

data class Data(val name:String,val email:String)

Let us create an adapter class.

UserAdapter.kt

package com.example.recyclerview

import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView
import com.example.recyclerview.databinding.ItemRecylerBinding

class UserAdapter(var datalist:List<Data>):RecyclerView.Adapter<UserAdapter.UserHolder>() {


    class UserHolder(val binding: ItemRecylerBinding) : RecyclerView.ViewHolder(binding.root) {
        fun bind(get: Data) {
            binding.email.text = get.email
            binding.name.text = get.name

        }
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): UserHolder {
        val binding = ItemRecylerBinding
            .inflate(LayoutInflater.from(parent.context), parent, false)
        return UserHolder(binding)
    }



    override fun onBindViewHolder(holder: UserHolder, position: Int) {
        holder.bind(datalist.get(position))
    }

    override fun getItemCount(): Int {
        return datalist.size
    }

}

Now we need to code for Main Activity.

MainActivity.kt

package com.example.recyclerview

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.example.recyclerview.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {

 private lateinit var binding: ActivityMainBinding
 private lateinit var adapter: UserAdapter
  private lateinit var user :List<Data>


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding= ActivityMainBinding.inflate(layoutInflater)
        val view = binding.root
        setContentView(view)
        userList()
       binding.rvRecycler.layoutManager = LinearLayoutManager(this)
       adapter = UserAdapter(user)
        binding.rvRecycler.adapter = adapter

    }
    private fun userList(){
        user = listOf(
            Data("Harshita","Harshita@gmail.com"),
            Data("minu","minu@gmail.com"),
            Data("ram","ram@gmail.com"),
            Data("sham","sham@gmail.com"),
            Data("raja","raja@gmail.com"),
            Data("harsh","harsh@gmail.com"),
            Data("harshu","harshu@gmail.com"),
            Data("xyz","xyz@gmail.com"),
            Data("abc","abc@gmail.com"),
            Data("pqr","pqr@gmail.com")
        )
    }

}

recycler view using view binding in android kotlin.

The source code.

GitHub - HarshitaBambure/RecyclerView_Binding

That's it. Happy Coding!!