cannot select radio button

Question

I have a RadioGroup in which I have 5 RadioButton's. Also I have a button next. On click of next button the text of radiobuttons changes. It all works fine but some of the radio buttons are not selected. This is my xml file

 public class SampleTestQuestionsActivity extends AppCompatActivity {

String totalques, timee, namee, idd;
String strServerResponse;
ProgressDialog nDialog;
ConnectionDetector cd;
Pojo pojo;
SamplePaperPojo samplePaperPojo;
RadioButton s_rb_1, s_rb_2, s_rb_3, s_rb_4, s_rb_5;
RadioGroup s_rbgrp;
private Toolbar toolbar;
TextView s_section, s_time, s_question;
Button s_submit, s_next, s_previous;

private CountDownTimer countDownTimer;
private boolean timerHasStarted = false;
long startTime;
private final long interval = 1 * 1000;
final Context context = this;
ArrayList<String> al_que_title;
ArrayList<String> al_que_id;
ArrayList<String> al_ans1;
ArrayList<String> al_ans2;
ArrayList<String> al_ans3;
ArrayList<String> al_ans4;
ArrayList<String> al_ans5;
ArrayList<String> al_correct;
ArrayList<String> al_exp;
ArrayList<String> al_desc;
String submitQuestionId;
ArrayList<SamplePaperPojo> sampleTest;
RadioButton selectedRbButton;
public static int inc = 0;
String correctAns;
ArrayList<String> selectedAns;
int selectedpos;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sample_test_questions);
    toolbar = (Toolbar) findViewById(R.id.app_bar);
    toolbar.setTitle("Sample Tests");
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    al_que_title = new ArrayList<String>();
    al_que_id = new ArrayList<String>();
    al_ans1 = new ArrayList<String>();
    al_ans2 = new ArrayList<String>();
    al_ans3 = new ArrayList<String>();
    al_ans4 = new ArrayList<String>();
    al_ans5 = new ArrayList<String>();
    al_correct = new ArrayList<String>();
    al_exp = new ArrayList<String>();
    al_desc = new ArrayList<String>();
    selectedAns = new ArrayList<String>();
    Intent i =getIntent();
    namee = i.getStringExtra("test_name");
    totalques = i.getStringExtra("test_ques");
    timee = i.getStringExtra("test_time");
    idd = i.getStringExtra("test_id");


    sampleTest = new ArrayList<SamplePaperPojo>();
    Log.e("test_id", ""+idd);
    Long ti = Long.valueOf(timee);
    startTime = 1000*ti;
    s_section = (TextView) findViewById(R.id.sampleSectionName);
    s_time = (TextView) findViewById(R.id.sampleTimer);
    s_question = (TextView) findViewById(R.id.sampleQuestion);
    s_submit = (Button) findViewById(R.id.sampleSubmitAnswer);
    s_next = (Button) findViewById(R.id.sampleNext);
    s_previous = (Button) findViewById(R.id.samplePrevious);
    s_rbgrp = (RadioGroup) findViewById(R.id.s_rbgrp);
    s_rb_1 = (RadioButton) findViewById(R.id.SA);
    s_rb_2 = (RadioButton) findViewById(R.id.SB);
    s_rb_3 = (RadioButton) findViewById(R.id.SC);
    s_rb_4 = (RadioButton) findViewById(R.id.SD);
    s_rb_5 = (RadioButton) findViewById(R.id.SE);

    countDownTimer = new MyCountDownTimer(startTime, interval);
    s_time.setText(s_time.getText() + String.valueOf(startTime / 1000));
    new NetCheck().execute();

    s_next.setVisibility(View.GONE);
    s_previous.setVisibility(View.GONE);

    s_submit.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            int index_selected = s_rbgrp.indexOfChild(s_rbgrp
                    .findViewById(s_rbgrp.getCheckedRadioButtonId()));

            // get selected radio button from radioGroup
            int selectedId = s_rbgrp.getCheckedRadioButtonId();

            if (selectedId==-1){
                AlertDialog alertDialog = new AlertDialog.Builder(
                        SampleTestQuestionsActivity.this).create();
                alertDialog.setMessage("Please select atleast one answer.");
                alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });

                alertDialog.show();
            }
            s_next.setVisibility(View.VISIBLE);
        }
    });

    s_next.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            submitQuestionId = al_que_id.get(inc).toString();
            s_rb_1.setTextColor(Color.parseColor("#000000"));
            s_rb_2.setTextColor(Color.parseColor("#000000"));
            s_rb_3.setTextColor(Color.parseColor("#000000"));
            s_rb_4.setTextColor(Color.parseColor("#000000"));
            s_rb_5.setTextColor(Color.parseColor("#000000"));
            int selectedId = s_rbgrp.getCheckedRadioButtonId();
            selectedRbButton = (RadioButton) findViewById(selectedId);
            selectedRbButton.setChecked(false);

            inc = inc + 1;
            s_question.setText("" + al_que_title.get(inc).toString());
            s_rb_1.setText("" + al_ans1.get(inc).toString());
            s_rb_2.setText("" + al_ans2.get(inc).toString());
            s_rb_3.setText("" + al_ans3.get(inc).toString());
            s_rb_4.setText("" + al_ans4.get(inc).toString());
            s_rb_5.setText("" + al_ans5.get(inc).toString());
            s_next.setVisibility(View.GONE);
        }
    });

}

private class NetCheck extends AsyncTask<Void, Void, Void> {

    @Override
    protected void onPreExecute() {
        // TODO Auto-generated method stub
        super.onPreExecute();
        nDialog = new ProgressDialog(SampleTestQuestionsActivity.this);
        nDialog.setMessage("Loading..");
        nDialog.setTitle("Please Wait");
        nDialog.setIndeterminate(false);
        nDialog.setCancelable(true);
        nDialog.show();
    }

    @Override
    protected void onPostExecute(Void result) {
        // TODO Auto-generated method stub
        super.onPostExecute(result);
        Log.e("Post exec calleld", "dfds");
        nDialog.dismiss();

        s_question.setText("" + al_que_title.get(inc).toString());
        s_rb_1.setText("" + al_ans1.get(inc).toString());
        s_rb_2.setText("" + al_ans2.get(inc).toString());
        s_rb_3.setText("" + al_ans3.get(inc).toString());
        s_rb_4.setText("" + al_ans4.get(inc).toString());
        s_rb_5.setText("" + al_ans5.get(inc).toString());

        countDownTimer.start();

    }

    @Override
    protected Void doInBackground(Void... params) {
        // TODO Auto-generated method stub

        try {

            cd = new ConnectionDetector(getApplicationContext());

            if (!cd.isConnectingToInternet()) {
                Handler handler = new Handler(Looper.getMainLooper());
                handler.post(
                        new Runnable() {
                            @Override
                            public void run() {
                                AlertDialog alertDialog = new AlertDialog.Builder(
                                        SampleTestQuestionsActivity.this).create();
                                alertDialog.setMessage("Error connecting to internet.");
                                alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
                                    public void onClick(DialogInterface dialog, int which) {
                                    }
                                });

                                alertDialog.show();
                            }
                        }
                );
            }
            HttpClient httpClient = new DefaultHttpClient();

            HttpPost httpRequest = new HttpPost(

                    "http://url");
            httpRequest.setHeader("Content-Type", "application/json");
            SharedPreferences preff = getSharedPreferences(
                    "MyPref", MODE_PRIVATE);
            String userid = preff.getString("id", null);
            Log.e("Student id", "" + userid);


            JSONObject json = new JSONObject();
            json.put("mocktest_id", idd);
            json.put("section_id", 1);


            Log.e("JSON Object", json.toString());

            StringEntity se = new StringEntity(json.toString());

            se.setContentEncoding("UTF-8");
            se.setContentType("application/json");

            httpRequest.setEntity(se);
            HttpResponse httpRes = httpClient.execute(httpRequest);

            java.io.InputStream inputStream = httpRes.getEntity()
                    .getContent();
            InputStreamReader inputStreamReader = new InputStreamReader(
                    inputStream);
            BufferedReader reader = new BufferedReader(inputStreamReader);
            StringBuilder sb = new StringBuilder();

            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
            inputStream.close();
            strServerResponse = sb.toString();
            Log.e("Server Response", "" + strServerResponse.toString());
            if (strServerResponse != null) {
                try {

                    JSONArray arr1 = new JSONArray(strServerResponse);
                    JSONObject jsonObj1 = arr1.getJSONObject(0);

                    samplePaperPojo = new SamplePaperPojo();
                    for (int i = 0; i < arr1.length(); i++) {

                        JSONObject jobjj11 = arr1
                                .getJSONObject(i);

                        String qq_id = jobjj11.optString("id");
                        String qq_title = jobjj11.optString("title");
                        String qq_des = jobjj11.optString("description");
                        String ans_a = jobjj11.optString("ans_a");
                        String ans_b = jobjj11.optString("ans_b");
                        String ans_c = jobjj11.optString("ans_c");
                        String ans_d = jobjj11.optString("ans_d");
                        String ans_e = jobjj11.optString("ans_e");
                        String right_ans = jobjj11.optString("right_ans");
                        String explanation = jobjj11.optString("explanation");

                        samplePaperPojo.setSampleQuesId(qq_id);
                        samplePaperPojo.setSampleQuesTitle(qq_title);
                        samplePaperPojo.setSampleAns1(ans_a);
                        samplePaperPojo.setSampleAns2(ans_b);
                        samplePaperPojo.setSampleAns3(ans_c);
                        samplePaperPojo.setSampleAns4(ans_d);
                        samplePaperPojo.setSampleAns5(ans_e);
                        samplePaperPojo.setSampleRightAns(right_ans);
                        samplePaperPojo.setSampleQuesDescription(qq_des);
                        samplePaperPojo.setSampleExplaination(explanation);
                        sampleTest.add(samplePaperPojo);

                        al_que_id.add(qq_id);
                        al_que_title.add(qq_title);
                        al_ans1.add(ans_a);
                        al_ans2.add(ans_b);
                        al_ans3.add(ans_c);
                        al_ans4.add(ans_d);
                        al_ans5.add(ans_e);
                        al_correct.add(right_ans);
                        al_exp.add(explanation);
                        al_desc.add(qq_des);

                    }                       

                } catch (JSONException e) {
                    e.printStackTrace();
                }
            } else {
                Log.e("ServiceHandler",
                        "Couldn't get any data from the url");
            }

        } catch (UnsupportedEncodingException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (ClientProtocolException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        return null;

    }

}

 }

The radio button which I previously selected is not selected when the text is changed after i click on next button. Please help

@Priyanka I didn't understant this line. It all works fine but some of the radio buttons are not selected. I guess, a user can only select only one answer and you are loading the new questions and answer on next button click. — Rahul Chaurasia, Nov 16 '15 at 07:32
@RahulChaurasia The radio button which I previously selected is not selected when the text is changed after i click on next button. — USER9561, Nov 16 '15 at 07:48
@Priyanka: What do you mean `but some of the radio buttons are not selected` ? — ρяσѕρєя K, Nov 16 '15 at 07:50
@ρяσѕρєяK The radio button which I previously selected is not selected when the text is changed after i click on next button — USER9561, Nov 16 '15 at 07:55
@Priyanka try 'setOnCheckedChangeListener' in radio button see http://stackoverflow.com/questions/8323778/how-to-set-on-click-listener-on-the-radio-button-in-android — Amit Basliyal, Nov 16 '15 at 08:03
Checked `RadioButton` is not selected because you are doing this: `selectedRbButton.setChecked(false);` — activesince93, Nov 16 '15 at 08:13
@activesince93 But i have to clear the selected radio button when next data is set — USER9561, Nov 16 '15 at 08:16
Can you tell me what exactly do you want? Because in the question you are saying something else. — activesince93, Nov 16 '15 at 08:20
@activesince93 when i click on next button I want to clear the selected radio button and dislpay new data — USER9561, Nov 16 '15 at 08:24
You should do this: `s_rbgrp.clearCheck();` rather than `int selectedId = s_rbgrp.getCheckedRadioButtonId(); selectedRbButton = (RadioButton) findViewById(selectedId); selectedRbButton.setChecked(false);` — activesince93, Nov 16 '15 at 08:32
Please mark my answer as accepted if it solved your problem. And please upvote it if this helped you. — activesince93, Nov 16 '15 at 09:14

score 4 · Accepted Answer · answered Nov 16 '15 at 09:13

4

You should replace:

int selectedId = s_rbgrp.getCheckedRadioButtonId();
selectedRbButton = (RadioButton) findViewById(selectedId);
selectedRbButton.setChecked(false);

with:

s_rbgrp.clearCheck();

answered Nov 16 '15 at 09:13

activesince93

1,716
17
37

Very helpful. Thanks – Pooja Jan 14 '21 at 19:22

cannot select radio button

1 Answers1