RecyclerView with CheckBox Example in Android

CheckBoxRecyclerActivity.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="com.example.bhaumik.demo.CheckBoxRecyclerActivity">


    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view_fruits"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="@dimen/_40dp"/>

    <Button
        android:id="@+id/btn_select_fruit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Show Selected Fruits"
        android:textAllCaps="false"
        android:layout_alignParentBottom="true"
        android:background="#00BCD4"
        android:textColor="#fff" />
</RelativeLayout>

item_fruits.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    app:cardCornerRadius="8dp">

   <LinearLayout
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:orientation="horizontal">

       <TextView
           android:id="@+id/tv_fruit_name"
           android:layout_width="0dp"
           android:layout_height="wrap_content"
           android:layout_below="@+id/empName"
           android:text="TextView"
           android:layout_weight="1"
           android:textColor="#000"
           android:padding="@dimen/_20dp"
           android:layout_toLeftOf="@+id/checkBox"
           android:layout_toStartOf="@+id/checkBox" />
       <TextView
           android:id="@+id/tv_fruit_price"
           android:layout_width="0dp"
           android:layout_height="wrap_content"
           android:textColor="#000"
           android:layout_weight="1"
           android:layout_toLeftOf="@+id/checkBox"
           android:layout_toStartOf="@+id/checkBox"
           android:text="TextView" />

       <CheckBox
           android:id="@+id/checkBox_select"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_alignParentEnd="true"
           android:layout_alignParentRight="true"
           android:layout_centerVertical="true"
           android:text=""
           android:layout_marginRight="@dimen/_10dp"/>

   </LinearLayout>

</android.support.v7.widget.CardView>

Add String Resource

<string-array name="item_fruits">

        <item>Apple</item>
        <item>Banana</item>
        <item>Mango</item>
        <item>Orange</item>
        <item>Cherry</item>
        <item>Grape</item>
        <item>Coconut</item>

    </string-array>

    <string-array name="item_price">

        <item>100</item>
        <item>40</item>
        <item>55</item>
        <item>25</item>
        <item>80</item>
        <item>120</item>
        <item>15</item>

    </string-array>

Fruits.java

package com.example.bhaumik.demo.pojo;

import java.io.Serializable;

/**
 * Created by Bhaumik on 8/25/2017.
 */

public class Fruits implements Serializable {

    String name;
    String price;
    boolean isSelected;

    public Fruits(String name, String price, boolean isSelected) {
        this.name = name;
        this.price = price;
        this.isSelected = isSelected;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }

    public boolean isSelected() {
        return isSelected;
    }

    public void setSelected(boolean selected) {
        isSelected = selected;
    }
}

FruitsAdapter.java

package com.example.bhaumik.demo.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;

import com.example.bhaumik.demo.R;import com.example.bhaumik.demo.pojo.Fruits;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by Bhaumik on 8/25/2017.
 */

public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.FruitHolder>{

    Context context;
    List<Fruits> list = new ArrayList<>();

    public FruitAdapter(Context context, List<Fruits> list) {
        this.context = context;
        this.list = list;
    }

    @Override
    public FruitHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View view  = LayoutInflater.from(context).inflate(R.layout.item_fruits,parent,false);

        return new FruitHolder(view);
    }

    @Override
    public void onBindViewHolder(final FruitHolder holder, final int position) {

        Fruits fruits = list.get(position);

        holder.tv_name.setText(fruits.getName());
        holder.tv_price.setText(fruits.getPrice());

        holder.checkBox.setChecked(fruits.isSelected());
        holder.checkBox.setTag(list.get(position));

        holder.checkBox.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Fruits fruits1 = (Fruits)holder.checkBox.getTag();

                fruits1.setSelected(holder.checkBox.isChecked());

                list.get(position).setSelected(holder.checkBox.isChecked());

            }
        });
    }

    @Override
    public int getItemCount() {
        return list.size();
    }

    public static class FruitHolder extends RecyclerView.ViewHolder{

        TextView tv_name,tv_price;
        CheckBox checkBox;

        public FruitHolder(View itemView) {
            super(itemView);

            tv_name = itemView.findViewById(R.id.tv_fruit_name);
            tv_price = itemView.findViewById(R.id.tv_fruit_price);
            checkBox = itemView.findViewById(R.id.checkBox_select);
        }
    }

    public List<Fruits> getFruitsList(){
        return list;
    }
}

CheckBoxRecyclerActivity.java

package com.example.bhaumik.demo;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.example.bhaumik.demo.adapter.FruitAdapter;import com.example.bhaumik.demo.pojo.Fruits;
import java.util.ArrayList;
import java.util.List;

public class CheckBoxRecyclerActivity extends AppCompatActivity {

    FruitAdapter adapter;

    List<Fruits> list = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_check_box_recycler);

        RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view_fruits);
        Button btn_select = (Button) findViewById(R.id.btn_select_fruit);

        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        String[] fruits = getResources().getStringArray(R.array.item_fruits);
        String[] price = getResources().getStringArray(R.array.item_price);


      for (int i=0;i<6;i++){

          Fruits fruits1 = new Fruits(fruits[i],price[i],false);
          list.add(fruits1);
      }

        
        adapter = new FruitAdapter(CheckBoxRecyclerActivity.this,list);
        recyclerView.setAdapter(adapter);

        btn_select.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String data = "";

                List<Fruits> list_fruit = adapter.getFruitsList();

                for (int i=0;i<list_fruit.size();i++){

                    Fruits fruits2 = list_fruit.get(i);

                    if (fruits2.isSelected() == true){
                        data = data + "\n" + fruits2.getName().toString() + "   " + fruits2.getPrice().toString();
                    }
                }

                Toast.makeText(CheckBoxRecyclerActivity.this,"Your Fruits Selected : \n " + data,Toast.LENGTH_SHORT)
                        .show();
            }
        });
    }
}