How to Create Simple RecyclerView in Android || How to Create RecycleriView in Android

How To Create Simple RecyclerView in Android

RecyclerView in Android Example

Hello Friends, Today we will teach you how to add RecyclerView in Android.

Follow the Steps

Step 1. :- Open build.gradle (Module:app) and add RecyclerView's Dependency

For API Level 28 use :-

implementation 'com.android.support:recyclerview-v7:28.0.0'

For API Level 29 (AndroidX) use :-

implementation 'androidx.recyclerview:recyclerview:1.1.0-alpha01'

Step 2. :- Now open your xml layout file and add RecyclerView element.

activity_main.xml :-

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/recycler_view"/>

</RelativeLayout>

Note :- We are using androidx because we have currently use API Level 29

Step 3. :- Now we need to create a xml layout file for our RecyclerView as a row_layout.xml

row_layout.xml :-

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/recycler_view_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:layout_gravity="left"
        android:textSize="20dp"
        android:textStyle="bold"
        android:textColor="@android:color/background_dark"/>

</LinearLayout>

Step 4. :- Now we need to create a Class, MyAdapter

MyAdapter.java :-

package com.akshayarora.myapplication;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;
import java.util.List;

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {

    String[] name;
    Context context;
    View view;
    TextView textView;

    public MyAdapter(String[] name, Context context) {
        this.name = name;
        this.context = context;
    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_layout,parent,false);
        MyViewHolder viewHolder = new MyViewHolder(view);
        return viewHolder;
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder holder, final int position) {
        holder.textView.setText(name[position]);
        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(context, name[position], Toast.LENGTH_SHORT).show();
            }
        });
    }

    @Override
    public int getItemCount() {
        return name.length;
    }

    public class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;

        public MyViewHolder(View itemView) {
            super(itemView);
            textView = (TextView) itemView.findViewById(R.id.recycler_view_title);
        }
    }
}

Step 5. :- Now open MainActivity.java and make some changes.

MainActivity.java :-

package com.akshayarora.myapplication;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.hardware.Camera;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ExpandableListView;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private MyAdapter myAdapter;
    String[] sub = {"India","USA","UK","Japan","China"};
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        myAdapter = new MyAdapter(sub,this);
        recyclerView.setAdapter(myAdapter);
    }
}

Now Run the Project and see the output

Output :-

 

Enjoy !