CheckBox in Listview Using Custom Adapter

 In this Application we just need to add a CheckBox along with the TextView. This Tutorial is an extension of ListView Using Custom Adapter 

We need the following things:
1. CustomAdapter class
2. DataModel Class
3. MainActivity Class

and with these classes we need only two xml files
1. activity_main.xml(xml file for MainActivity.java)
2. row.xml(To hold listview components)

Here is your Code :



MainActivity.java

package com.AndroidDevelopmentGuru.checkbox;

import java.util.ArrayList;



import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity  {


    ListView list;
    DataModel[] items;
   
    DataModel data;
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       
       
        list =(ListView)findViewById(R.id.listView1);
        list.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
     
        data = new DataModel();
        items = new DataModel[5];
        items[0] = new DataModel("BTech", 0);
        items[1]= new DataModel("MCA", 0);
        items[2]= new DataModel("Mtech", 0);
        items[3]= new DataModel("MBA", 0);
        items[4]= new DataModel("PhD", 0);
       
        CustomAdapter adapter = new CustomAdapter(this,items);
        list.setAdapter(adapter);
   
            
        }


   
   
}



CustomAdapter.java

package com.AndroidDevelopmentGuru.checkbox;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;

public class CustomAdapter extends ArrayAdapter<DataModel> {


    DataModel[] items = null;
    Context context;
    ArrayList<String> checkedValues;
    boolean[] CheckBoxState;
   
    public CustomAdapter(Context context, DataModel[] resource) {
        super(context, R.layout.row,resource);
        // TODO Auto-generated constructor stub
       
        this.context=context;
        this.items=resource;
        CheckBoxState = new boolean[resource.length];
        checkedValues = new ArrayList<String>();
    }
    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
       
       
        LayoutInflater inflater = ((Activity)context).getLayoutInflater();
        convertView = inflater.inflate(R.layout.row, parent,false);
       
        final TextView stream = (TextView)convertView.findViewById(R.id.textView1);
        CheckBox ch = (CheckBox)convertView.findViewById(R.id.checkBox1);
       
        stream.setText(items[position].getStream());
       
   
        convertView.setOnClickListener(new OnClickListener() {
           
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
           
                Toast.makeText(context.getApplicationContext(), "you Clicked"+items[position].getStream(), Toast.LENGTH_LONG).show();
            }
        });
       
        ch.setChecked(false);
       
       
ch.setOnClickListener(new View.OnClickListener() {
       
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
           
        if(((CheckBox)v).isChecked()){
            CheckBoxState[position]=true;
            checkedValues.add(stream.getText().toString());
        Toast.makeText(context.getApplicationContext(), "You Have Selected: "+checkedValues, Toast.LENGTH_LONG).show();
        }
        else if(!((CheckBox)v).isChecked()){
           
            CheckBoxState[position]=false;
            checkedValues.remove(stream.getText().toString());
        }
           
       
        }
       
           
    });
       
   
       
        return convertView;
                }
   
   
    }


DataModel.java

package com.AndroidDevelopmentGuru.checkbox;



public class DataModel {

    String stream;
    int value; //for check box
   
    public DataModel(String string, int value) {
        // TODO Auto-generated constructor stub
       
        this.stream=string;
        this.value=value;
    }
    public DataModel() {
        // TODO Auto-generated constructor stub
    }
    public String getStream() {
        return stream;
    }
    public void setStream(String stream) {
        this.stream = stream;
    }
    public int getValue() {
        return value;
    }
    public void setValue(int value) {
        this.value = value;
    }
   
}











activity_main.xml


<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>







 In row.xml, keep the orientation of Linear layout horizontal for better view.

row.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/LinearLayout1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

   

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

</LinearLayout>

Download the Source code 

Output: