checkbox kullanımı

Merhabalar

Checkbox kutularının hepsini isaretlemeden program kayit yapmiyor.Yani hepsini isaretleyip kayit ettikten sonra tek isaretleyip kayit yapabiliyorum.Hatami bulabiilirmisiniz? 

package com.ugurkrky.uygulama;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Toast;

import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import java.util.HashMap;
import java.util.Map;


public class mesajkaydet extends AppCompatActivity {

    Button mesajkayit;
    EditText mesaj;
    RequestQueue requestQueue;
    String insertUrl = ("http://10.0.3.2/msosyal/mesajkayit.php");
    String sonuc1,sonuc2,sonuc3,sonuc4;

    CheckBox cb1,cb1i,cb2,cb2i;


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

        cb1=(CheckBox)findViewById(R.id.bir);
        cb1i=(CheckBox)findViewById(R.id.birio);
        cb2=(CheckBox)findViewById(R.id.iki);
        cb2i=(CheckBox)findViewById(R.id.ikiio);


        cb1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(cb1.isChecked())
                {  sonuc1="1";}
            }
        });
        cb1i.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(cb1i.isChecked())
                { sonuc2="2";}
                         }
        });
        cb2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(cb2.isChecked())
                { sonuc3="3";}
                           }
        });
        cb2i.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if(cb2i.isChecked())
                {sonuc4="4";}

            }
        });

        mesaj=(EditText)findViewById(R.id.mesajalan);

        mesajkayit=(Button) findViewById(R.id.mesajgonder);

        requestQueue = Volley.newRequestQueue(getApplicationContext());

        assert mesajkayit != null;
        mesajkayit.setOnClickListener(new View.OnClickListener(){


            @Override
            public void onClick(View v) {

                StringRequest request = new StringRequest(Request.Method.POST, insertUrl, new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {

                        Toast.makeText(getApplicationContext(), "Gönderildi", Toast.LENGTH_SHORT).show();                    }
                }, new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast.makeText(getApplicationContext(), "Bağlantı hatası", Toast.LENGTH_SHORT).show();

                    }
                }) {

                    @Override
                    protected Map<String, String> getParams() throws AuthFailureError {
                        Map<String,String> parameters  = new HashMap<String, String>();
                        parameters.put("mesaj",mesaj.getText().toString());
                        parameters.put("cb1", sonuc1);
                        parameters.put("cb1i", sonuc2);
                        parameters.put("cb2", sonuc3);
                        parameters.put("cb2i",sonuc4.toString());


                        return parameters;
                    }
                };
                requestQueue.add(request);
            }

        });


    }


    }