How to get position of checked checkbox from listview in android

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Android

checkbox

ListView

I created custom ListView with CheckBox next to title. I want to get checked  CheckBox from ListView

I created following function for get message from ListView and send it to another ListView with Intent but I cant get the particular CheckBox position to move.

public class SpamActivity extends AppCompatActivity {

List<Message> sms;
ArrayList<Message> sms1;
ArrayList<String> al;
ListView lv;
CheckBox checkbox;

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

    lv= (ListView) findViewById(R.id.lvMsg);
    checkbox = (CheckBox) findViewById(R.id.checkBox);
     sms = new ArrayList<>();
     al=new ArrayList<>(0);
    populateMessageList();

  /*  SpamActivity spamactivity = new SpamActivity();
    al = spamactivity.al;
    //InboxFragment inboxfragment = new InboxFragment();
    //al = inboxfragment.list;

    for (int i=0;i<sms.size();i++){
        System.out.println("AddressSPS" + sms.get(i));
    }                */
    Collections.reverse(sms);

}

public void populateMessageList() {
     sms1 = new ArrayList<>();
    fetchDatabaseMessage();

    lv.setAdapter(new datalist(getApplicationContext(), sms1));

        // to handle click event on listView item
        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> arg0, View v, int position, long arg3) {
                // when user clicks on ListView Item , onItemClick is called
                // with position and View of the item which is clicked
                // we can use the position parameter to get index of clicked item
                TextView textViewSMSSender = (TextView) v.findViewById(R.id.lblNumber);
                TextView textViewSMSBody = (TextView) v.findViewById(R.id.lblMsg);
                TextView textViewSMSDate = (TextView) v.findViewById(R.id.smsdate);
                String smsSender = textViewSMSSender.getText().toString();
                String smsBody = textViewSMSBody.getText().toString();
                String smsDate = textViewSMSDate.getText().toString();

                Intent intentspam = new Intent(getApplicationContext(), DisplaySpamsms.class);
                intentspam.putExtra("number",smsSender);
                intentspam.putExtra("msg",smsBody);
                startActivity(intentspam);

            }
        });
}

// This method featch the message stored in database
public  void fetchDatabaseMessage(){
    DB_Message dbmessage = new DB_Message(this);
    sms = dbmessage.ViewMessageData();
    String addr = sms.get(0).getmAddress();
    if (addr.equals(sms.get(0).getmAddress())) {
        for (int i = 0; i < sms.size(); i++) {
            al.add(sms.get(i).getmAddress());
            //al.add(sms.get(i).getmBody());
        }
    }else {
        System.out.println("SMS Not Displayed");

    }
}


class datalist extends BaseAdapter {

    Context context;
    ArrayList<Message> arrayListsms;

    public datalist(Context context, ArrayList<Message> arrayListsms) {
        // TODO Auto-generated constructor stub
        this.context = context;
        this.arrayListsms = arrayListsms;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return sms.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return getItem(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        LayoutInflater inflator = getLayoutInflater();
        View row;
        row = inflator.inflate(R.layout.row, parent, false);
        //  ImageView img1 = (ImageView) row.findViewById(R.id.imageView1);
        final CheckBox checkBox = (CheckBox) row.findViewById(R.id.checkBox);
        final TextView txt1 = (TextView) row.findViewById(R.id.lblMsg);
        final TextView txt2 = (TextView) row.findViewById(R.id.lblNumber);
        final TextView txt3 = (TextView) row.findViewById(R.id.smsdate);
        //Long timestamp = Long.parseLong(sms.get(position).getmDate());
        Calendar mcalendar = Calendar.getInstance();
        //mcalendar.setTimeInMillis(timestamp);
        DateFormat mformatter = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss");


        txt1.setText(sms.get(position).getmBody());
        txt2.setText(sms.get(position).getmAddress());
        //+"\n"+mformatter.format(mcalendar.getTime())
        txt3.setText(mformatter.format(mcalendar.getTime()));

        final String msgBody = txt1.getText().toString();
        final String msgAddr = txt2.getText().toString();
        final String msgDate = txt3.getText().toString();

        checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                Message msg = new Message();
                if (isChecked) {
                    //  selectedStrings.add(tv.getText().toString());

                    Toast.makeText(context, "" + msgBody, Toast.LENGTH_LONG).show();

                    System.out.println("Body" + msgBody);
                    System.out.println("Address" + msgAddr);
                    System.out.println("Date" + msgDate);

                      al.add(msgBody + msgAddr + msgDate);
                    //                        al.add(msgAddr);
                   //                        al.add(msgDate);

                    sms.remove(position);
                    ContentValues values = new ContentValues();
                    values.put("address", sms.get(position).getmAddress());
                    values.put("body", sms.get(position).getmBody());
                    String date = msg.getmDate();
                    SimpleDateFormat format = new SimpleDateFormat("dd/mm/yyyy hh:mm:ss");
                    getContentResolver().insert(Uri.parse("content://sms/inbox"), values);

                    notifyDataSetChanged();
                } else {
                    //   selectedStrings.remove(tv.getText().toString());
                }

            }
        });


        return row;
    }
}

}

When I used above function for sending message but error is that when I click on any CheckBox to send that message then automatically Different Message is sent to another activity. so, I want to get particular message position to sent it.

What I have tried:

I tried getTag() and setTag() methods of check box for getting and setting position, but this not work