Ошибка jsonexception no value for type вконтакте

I want to display my friend’s list.I don’t understand why String cannot converted to json. I understand that error in 152(MainActivity)

JSONObject o = new JSONObject(response.toString());

but i don’t know why…

JSONException: Value com.vk.sdk.api.VKResponse@42b49418 of type java.lang.String cannot be converted to JSONObject

In logs this response show Response:

 {
    "response": {
        "count": 40,
        "items": [{
                    "id": 10543136,
                    "first_name": "Филип",
                    "last_name": "Канна",
                    "sex": 2,
                    "city": {
                        "id": 1710959,
                        "title": "Кишинев"
                    },
                    "online": 0
                }, ........

How JSON looks like VK server

response: {
    count: 693,
    items: [{
        id: 1987761,
        first_name: 'Александром',
        last_name: 'Мирмильштейном',
        sex: 2,
        city: {
            id: 60,
            title: 'Казань'
        },
        online: 0
    }, {
        id: 153796,
        first_name: 'Александром',
        last_name: 'Москалюком',
        sex: 2,
        city: {
            id: 1568,
            title: 'Черновцы'
        },
        online: 0
    }, {
        id: 10741,
        first_name: 'Александром',
        last_name: 'Мынзой',
        sex: 2,
        city: {
            id: 1,
            title: 'Москва'
        },
        online: 0
    }]
 }

My MainActivity

public class MainActivity extends Activity {
TextView text;
getFriendTask task;
ListView listView1;
VKAccessToken token;


ArrayList<Friend> friendArrayList;
ArrayAdapter<Friend> adapter;




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

    VKUIHelper.onCreate(this);
    VKSdk.initialize(listener, "4571964");
    VKSdk.authorize(new String[]{"friends"});



    text=(TextView)findViewById(R.id.txt);
}



public void FriendClick(View view) {

     friendArrayList=new ArrayList<Friend>();
               task=new getFriendTask();
                task.execute();
                listView1=(ListView)findViewById(R.id.list);
                adapter=new FriendAdapter(getApplicationContext(), R.layout.friendlist, friendArrayList);
                listView1.setAdapter(adapter);



}

class getFriendTask extends AsyncTask<Void, Void, Void> {


    protected void onPostExecute(Void result){
        super.onPostExecute(result);
        adapter.notifyDataSetChanged();
    }


    @Override
    protected Void doInBackground(Void... params) {
        if(listener!=null) {
            VKRequest request = new VKRequest("friends.get", VKParameters.from(VKApiConst.FIELDS, "first_name, last_name, sex, bdate, city"));
            request.start();

            request.executeWithListener(new VKRequest.VKRequestListener() {

                                            @Override
                                            public void onComplete(VKResponse response) {
                                                super.onComplete(response);
                                                Toast.makeText(MainActivity.this, response.responseString, Toast.LENGTH_LONG).show();
            try{

                    JSONObject o = new JSONObject(response.toString());
                    JSONArray jsonArray = o.getJSONArray("response");

                    for (int i = 0; i < jsonArray.length(); i++) {
                        JSONObject jsonObject = jsonArray.getJSONObject(i);
                        Friend fr = new Friend();

                        fr.setFirst_name(jsonObject.getString("first_name"));
                        fr.setLast_name(jsonObject.getString("last_name"));
                        fr.setSex(jsonObject.getString("sex"));
                        fr.setBdate(jsonObject.getString("bdate"));
                        fr.setCity(jsonObject.getString("city"));

                        friendArrayList.add(fr);



                }

            }catch (JSONException e){
                e.printStackTrace();
            }
                Log.i("Are You Ready???", "Response - "+response.responseString);

                                            }

                @Override
                public void onError(VKError error) {
                    super.onError(error);
                    Log.i("Are You Ready to Fly???", "EEEror - "+error.errorMessage);

                }

                @Override
                public void attemptFailed(VKRequest request, int attemptNumber, int totalAttempts) {
                    super.attemptFailed(request, attemptNumber, totalAttempts);

                }
            });
        }
        return null;
    }


}






VKSdkListener listener=new VKSdkListener() {
    @Override
    public void onCaptchaError(VKError vkError) {


    }

    @Override
    public void onTokenExpired(VKAccessToken vkAccessToken) {

    }

    @Override
    public void onAccessDenied(VKError vkError) {
        Log.d("Gooooo", " My error - "+vkError.errorMessage);
    }
    public void onReceiveNewToken(VKAccessToken newToken){

        Log.d("Gooooo", "My token - "+newToken.accessToken);

        token=newToken;

    }

};

@Override
protected void onResume() {
    super.onResume();
    VKUIHelper.onResume(this);
}

@Override
protected void onDestroy() {
    super.onDestroy();
    VKUIHelper.onDestroy(this);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    VKUIHelper.onActivityResult(requestCode, resultCode, data);
}

public void onAutoClick(View view) {
}}

My Model Friend

  class Friend{

    String first_name;
    String last_name;
    String sex;
    String bdate;
    String city;         
        public Friend(){}
      public Friend(String first_name, String last_name, String sex, String bdate, String city){
    super();
    this.first_name=first_name;
    this.last_name=last_name;
    this.sex=sex;
    this.bdate=bdate;
    this.city=city;
    }

     public String getFirst_name(){
    return first_name;
    }
     public void setFirst_name(String first_name){
    this.first_name=first_name;
    }
     public String getLast_name(){
    return last_name;
    }
     public void setLast_name(String last_name){
    this.last_name=last_name;
    }
     public String getSex(){
    return sex;
    }
     public void setSex(String sex){
    this.sex=sex;
    }
     public String getBdate(){
    return bdate;
    }
     public void setBdate(String bdate){
    this.bdate=bdate;
    }
     public String getCity(){
    return city;
    }
     public void setCity(String city){
    this.city=city;
    }
    }

My FriendAdapter

      public class FriendAdapter extends ArrayAdapter<Friend> {
 ArrayList<Friend> friendArrayList;
LayoutInflater inflater;
int Resource;
ViewHolder holder = new ViewHolder();

public FriendAdapter(Context context, int resource, ArrayList<Friend> objects) {
    super(context, resource, objects);
    inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    Resource=resource;
    friendArrayList=objects;
}

@Override
public View getView(int position, View convertView, ViewGroup parent){
    View view=convertView;

    if(view==null){
    holder=new ViewHolder();
        view=inflater.inflate(Resource, null);
        holder.name=(TextView)view.findViewById(R.id.fname);
        holder.laname=(TextView)view.findViewById(R.id.lname);
        holder.s=(TextView)view.findViewById(R.id.sx);
        holder.b=(TextView)view.findViewById(R.id.bd);
        holder.c=(TextView)view.findViewById(R.id.ct);
        view.setTag(holder);
    }else{
        holder=(ViewHolder) view.getTag();
    }
    holder.name.setText(friendArrayList.get(position).getFirst_name());
    holder.laname.setText(friendArrayList.get(position).getLast_name());
    holder.s.setText(friendArrayList.get(position).getSex());
    holder.b.setText(friendArrayList.get(position).getBdate());
    holder.c.setText(friendArrayList.get(position).getCity());
    return view;
}
static class ViewHolder {
    public TextView name;
    public TextView laname;
    public TextView s;
    public TextView b;
    public TextView c;
} }

Error

10-25 22:57:33.130  31812-31812/standandroid.ru.vktestapi W/System.err﹕ org.json.JSONException: Value com.vk.sdk.api.VKResponse@42b40ac0 of type java.lang.String cannot be converted to JSONObject
10-25 22:57:33.130  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at org.json.JSON.typeMismatch(JSON.java:111)
10-25 22:57:33.130  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at org.json.JSONObject.<init>(JSONObject.java:158)
10-25 22:57:33.130  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at org.json.JSONObject.<init>(JSONObject.java:171)
10-25 22:57:33.140  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at standandroid.ru.vktestapi.MainActivity$getFriendTask$1.onComplete(MainActivity.java:152)
10-25 22:57:33.140  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at com.vk.sdk.api.VKRequest$3.run(VKRequest.java:459)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at android.os.Handler.handleCallback(Handler.java:730)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at android.os.Handler.dispatchMessage(Handler.java:92)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at android.os.Looper.loop(Looper.java:137)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at android.app.ActivityThread.main(ActivityThread.java:5137)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at java.lang.reflect.Method.invokeNative(Native Method)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:525)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:756)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:572)
10-25 22:57:33.150  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at miui.dexspy.DexspyInstaller.main(DexspyInstaller.java:171)
10-25 22:57:33.160  31812-31812/standandroid.ru.vktestapi W/System.err﹕ at dalvik.system.NativeStart.main(Native Method)
10-25 22:57:33.160  31812-31812/standandroid.ru.vktestapi I/Are You Ready???﹕ Response - {"response":{"count":40,"items":[{"id":10543136,"first_name":"Филип","last_name":"Канна","sex":2,"city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":12567913,"first_name":"Юлия","last_name":"Мурашева","sex":1,"bdate":"4.4","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":15349233,"first_name":"Алёна","last_name":"Волкова","sex":1,"bdate":"31.3","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":15890365,"first_name":"Алиса","last_name":"Голдур","sex":1,"bdate":"25.2","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":17445476,"first_name":"Лена","last_name":"Стурза","sex":1,"bdate":"6.3.1995","online":1},{"id":20855237,"first_name":"Никита","last_name":"Чукля","sex":2,"online":1},{"id":22441902,"first_name":"Максим","last_name":"Чакир","sex":2,"bdate":"4.1.1994","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":23260033,"first_name":"Катя","last_name":"Кузьмина","sex":1,"bdate":"27.6.1994","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":24891252,"first_name":"Арина","last_name":"Горобец","sex":1,"bdate":"20.12.1994","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":33387222,"first_name":"Алёна","last_name":"Миколюк","sex":1,"bdate":"14.10","city":{"id":292,"title":"Одесса"},"online":1},{"id":38467274,"first_name":"Андрей","last_name":"Тросиненко","sex":2,"bdate":"19.3","online":0},{"id":38733273,"first_name":"Миха","last_name":"Романчук","sex":1,"bdate":"2.6.1937","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":39117080,"first_name":"Рома","last_name":"Беженарь","sex":2,"bdate":"14.10","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":45171519,"first_name":"Александр","last_name":"Огурцов","sex":2,"bdate":"22.6.1994","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":47147705,"first_name":"Никита","last_name":"Драгуцану","sex":2,"bdate":"28.12","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":58606740,"first_name":"Франческа","last_name":"Канна","sex":1,"bdate":"25.1","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":62678153,"first_name":"Лёша","last_name":"Кугут","sex":2,"city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":67485434,"first_name":"Ирина","last_name":"Трапезникова","sex":1,"bdate":"15.7","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":76249958,"first_name":"Никита","last_name":"Литвинов","sex":2,"online":1},{"id":78574119,"first_name":"Женя","last_name":"Чередниченко","sex":2,"city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":87816032,"first_name":"Саша","last_name":"Сергунин","sex":2,"bdate":"28.5.1994","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":91235673,"first_name":"Вадим","last_name":"Барский","sex":2,"bdate":"22.6.1994","city":{"id":1908479,"title":"Antananarivo"},"online":1},{"id":94373404,"first_name":"Никита","last_name":"Головко","sex":2,"bdate":"29.1","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":101047911,"first_name":"Алексей","last_name":"Кицак","sex":2,"bdate":"12.5","city":{"id":1710959,"title":"Кишинев"},"online":1},{"id":101208573,"first_name":"Глеб","last_name":"Глинянов","deactivated":"deleted","sex":2,"online":0},{"id":108330289,"first_name":"Саша","last_name":"Руденко","sex":2,"bdate":"16.6","online":0},{"id":129188949,"first_name":"Роман","last_name":"Бугаян","sex":2,"city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":139584680,"first_name":"Кристиан","last_name":"Мбала","sex":2,"bdate":"10.6","city":{"id":1710959,"title":"Кишинев"},"online":0},{"id":154083054,"first_name":"Оля","last_name":"За

После небольшой корректировки ответа JSON ошибка изменилась на W/System.err: org.json.JSONException: No value for retCode.

Полная ошибка:

04-03 12:53:26.624 14366-14366/com.allianz.azemployee W/System.err: org.json.JSONException: No value for retCode
04-03 12:53:26.624 14366-14366/com.allianz.azemployee W/System.err:     at org.json.JSONObject.get(JSONObject.java:389)
04-03 12:53:26.624 14366-14366/com.allianz.azemployee W/System.err:     at org.json.JSONObject.getString(JSONObject.java:550)
04-03 12:53:26.624 14366-14366/com.allianz.azemployee W/System.err:     at com.allianz.azemployee.ActivityRegister$2.serviceResult(ActivityRegister.java:194)
04-03 12:53:26.624 14366-14366/com.allianz.azemployee W/System.err:     at com.allianz.azemployee.Net$1$1.run(Net.java:420)
04-03 12:53:26.624 14366-14366/com.allianz.azemployee W/System.err:     at android.os.Handler.handleCallback(Handler.java:739)
04-03 12:53:26.625 14366-14366/com.allianz.azemployee W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:95)
04-03 12:53:26.625 14366-14366/com.allianz.azemployee W/System.err:     at android.os.Looper.loop(Looper.java:148)
04-03 12:53:26.625 14366-14366/com.allianz.azemployee W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:5417)
04-03 12:53:26.625 14366-14366/com.allianz.azemployee W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
04-03 12:53:26.625 14366-14366/com.allianz.azemployee W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
04-03 12:53:26.625 14366-14366/com.allianz.azemployee W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
04-03 12:53:26.703 14366-14454/com.allianz.azemployee V/RenderScript: 0x9d789000 Launching thread(s), CPUs 4

Это мой класс ActivityRegister.java:

public class ActivityRegister extends AppCompatActivity implements View.OnClickListener {

    Button btnRequestPin, btnConfirm, btnRequestNewPin;
    EditText editTextEmail;
    EditText editTextPin;

    private static final String FIRST_START_KEY = "first_start";
    private static final boolean ALWAYS_SEND_FIRST_START_BROADCAST = false;

    private String emailTemp, tokenTemp;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        btnRequestPin = (Button)findViewById(R.id.btn_request_pin);
        btnConfirm = (Button)findViewById(R.id.btn_confirm);
        btnRequestNewPin = (Button)findViewById(R.id.btn_request_newpin);
        editTextEmail = (EditText) findViewById(R.id.editText_mail);
        editTextPin = (EditText) findViewById(R.id.editText_pin);

        btnRequestPin.setOnClickListener(this);
        btnConfirm.setOnClickListener(this);
        btnRequestNewPin.setOnClickListener(this);
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        finish();
        Intent intent = new Intent(this,ActivityLogin.class);
        this.startActivity(intent);
    }

    @Override
    public void onClick(View v) {
        if(v == btnConfirm){

            final String email = editTextEmail.getText().toString();
            final String token = editTextPin.getText().toString();

            if (email == null || email.length() == 0){
                Toast.makeText(this,"Email required",Toast.LENGTH_SHORT).show();
                return;
            }

            if (token == null || token.length() == 0){
                Toast.makeText(this,"OTP required",Toast.LENGTH_SHORT).show();
                return;
            }

            //Check if email is valid
            if(!android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()){
                Toast.makeText(this,"Valid email required.",Toast.LENGTH_SHORT).show();
                return;
            }

            String postBody = Net.getInstance().getJSONForRegister(email,token);
            Net.getInstance().callServiceWithURLPart(this, Net.kURLPartEmpAuthentication, postBody, new Net.ICallServiceResult() {
                @Override
                public void serviceResult(String urlPart, boolean expected, String errorMsg) {

                    if(!expected){

                        if(errorMsg!=null){
                            Net.fastToast(ActivityRegister.this,"Unable to register. Try again.nn"+errorMsg);
                        }
                        else {
                            Net.fastToast(ActivityRegister.this,"Unable to register. Try again.");
                        }
                    }
                    else {
                        try {
                            JSONObject jsonObject = new JSONObject(errorMsg);

                            String retCode = jsonObject.getString("retCode");
                            String status = jsonObject.getString("status");

                            int retCodeInt = Integer.parseInt(retCode);
                            Net.fastToast(ActivityRegister.this,status);

                            if (retCodeInt==0) { //Registration success

                                //Store user-email and token
                                Net.getInstance().saveUserWithValues(ActivityRegister.this, email, token, "");
                                //Take user to login screen.
                                ActivityRegister.this.finish();
                            }
                        } catch (JSONException e) {
                            e.printStackTrace();
                            Net.fastToast(ActivityRegister.this,"Unable to get valid response for registration. Try again.");
                        }
                    }
                }
            });
        }
        if(v == btnRequestPin || v == btnRequestNewPin){

            final String email = editTextEmail.getText().toString();

            if (email == null || email.length() == 0){
                Toast.makeText(this,"Email required",Toast.LENGTH_SHORT).show();
                return;
            }

            //Check if email is valid
            if(!android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()){
                Toast.makeText(this,"Valid email required.",Toast.LENGTH_SHORT).show();
                return;
            }

            final Button button = (Button) v;
            String postBody = Net.getInstance().getJSONForPinGeneration(email);
            Net.getInstance().callServiceWithURLPart(this, Net.kURLPartEmpAuthentication, postBody, new Net.ICallServiceResult() {
                @Override
                public void serviceResult(String urlPart, boolean expected, String errorMsg) {

                    if(!expected){
                        Log.i("Aditi","errorMsg== " +errorMsg);
                        if(errorMsg!=null){
                            Net.fastToast(ActivityRegister.this,"Unable to generate pin. Try again.nn"+errorMsg);
                        }
                        else {
                            Net.fastToast(ActivityRegister.this,"Unable to generate pin. Try again.");
                        }
                    }
                    else {
                        try {
                            JSONObject jsonObject = new JSONObject(errorMsg);

                            String retCode = jsonObject.getString("retCode");
                            String status = jsonObject.getString("status");

                            Log.i("Aditi","retCode===" + retCode + " ,status== "+status);
                            Log.i("Aditi","errorMsg== " +errorMsg);

                            int retCodeInt = Integer.parseInt(retCode);
                            Net.fastToast(ActivityRegister.this,status);

                            if(retCodeInt == 0 && button == btnRequestNewPin){

                                ActivityRegister.this.finish(); //take user to login on success.
                            }

                        } catch (JSONException e) {
                            e.printStackTrace();
                            Net.fastToast(ActivityRegister.this,"Unable to get valid response for pin generation. Try again.");
                        }
                    }

                }
            });
        }
    }
}

Это строка ответа, которую я даю:

public void callServiceWithURLPart(final Activity activity, final String urlPart, final String postBody, final ICallServiceResult callServiceResult){

        final ProgressDialog progress = new ProgressDialog(activity);
        progress.setTitle("Processing..");
        progress.setProgressStyle(android.R.attr.progressBarStyleSmall);
        //progress.setMessage("Connecting...");
        progress.show();

        ConnectivityManager connMgr = (ConnectivityManager)
                activity.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
        if (networkInfo != null && networkInfo.isConnected()) {


            Runnable r = new Runnable() {
                @Override
                public void run() {

                    OkHttpClient client = new OkHttpClient.Builder().connectTimeout(60, TimeUnit.SECONDS).build();

                    try{

                        String servicePath = kURLBase + urlPart;

                        Log.d("OkHttpClient","servicePath = "+servicePath);
                        Log.d("postBody",postBody);

                        Request request = new Request.Builder()
                                .url(servicePath)
                                .put(RequestBody.create(MEDIA_TYPE_JSON, postBody))
                                .build();

                        final Response response = client.newCall(request).execute();
                        if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

                        //final String stringResponse = response.body().string();

                        final String stringResponse = "{'serviceName': 'registerToken', 'emailID': '', 'token': ''}";

                        if(stringResponse!=null){
                            Log.d("ServiceResponseString",stringResponse);
                        }else {
                            Log.d("ServiceResponseString","null");
                        }

                        if(callServiceResult!=null){
                            activity.runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    progress.dismiss();
                                    if(stringResponse!=null){
                                        callServiceResult.serviceResult(urlPart,true,stringResponse);
                                    }
                                    else {
                                        callServiceResult.serviceResult(urlPart,false,stringResponse);
                                    }
                                }
                            });
                        }
                    } catch (Exception e){

                        Log.d("OkHttpClient exception",e.toString());
                        final Exception _e = e;
                        if(callServiceResult!=null){
                            activity.runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    progress.dismiss();
           callServiceResult.serviceResult(urlPart,false,_e.toString());
                                }
                            });
                        }
                    }
                }
            };
            Thread t = new Thread(r);
            t.start();
        } else {
            progress.dismiss();
            fastToast(activity,"Connect to internet and try again.");
        }
    }

Мой базовый URL: public static final String kURLBase = "https://api-test.allianz.com/digithonempwebservice/rest";, который предоставляется при запросе stringResponse. Любая помощь будет оценена.

I know that there are several questions posted on here with the same topic and error, but none of them indicate the same problem as mine, so I decided to post my question here, hoping that someone would help me point out the cause.
So I’m trying to implement the login feature in my app and here’s the code:

if (tag.equalsIgnoreCase(login_tag)){
                // check for login response
                try {
                    if (json.getString(KEY_SUCCESS) != null) {
                        String res = json.getString(KEY_SUCCESS);
                        if(Integer.parseInt(res) == 1){
                            // user successfully logged in
                            // Store user details in SQLite Database
                            DatabaseHandler db = new DatabaseHandler(mContext);
                            JSONObject json_user = json.getJSONObject("user");

                            // Clear all previous data in database
                            logoutUser(mContext);
                            Toast.makeText(mContext, json.toString(3), Toast.LENGTH_LONG).show();
                            db.addUser(json_user.getString(KEY_EMAIL), json_user.getString(KEY_NAME), json.getString(KEY_UID), json.getString(KEY_AVA), json_user.getString(KEY_BDAY), json_user.getString(KEY_COUNTRY), json_user.getString(KEY_PREF), json_user.getString(KEY_SPEND));  

                            // Launch Dashboard Screen
                            Intent dashboard = new Intent(mContext, DashboardActivity.class);

                            // Close all views before launching Dashboard
                            dashboard.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                            mContext.startActivity(dashboard);

                            // Close Login Screen
                            ((Activity) mContext).finish();
                        }
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

And this is the JSON response I got when logging in:

{
    "tag": "login",
    "success": 1,
    "error": 0,
    "uid": "5123",
    "user": {
        "email": "abcxyz@gmail.com",
        "name": "abc",
        "avatar": "avatars/img_hzsxda_2013-03-18-11-03-33.jpg",
        "bday": "1991-02-01",
        "country": "Australia",
        "preferences": "none",
        "spending": "none"
    }
}

So apparently there is a value for avatar, but I still got this warning in my logcat:

03-18 12:06:36.972: W/System.err(24574): org.json.JSONException: No value for avatar

Since no value avatar is got, I can’t complete addUser, hence login fails.
Please help me find the error and how to solve it. Thank you.

{"error":false,"values":{"1":{"name":"This is a string"}, "2":{...}}}

JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");

if (!error) {
JSONObject values = jObj.getJSONObject("values");
Iterator<?> keys = values.keys();

while(keys.hasNext()) {
String key = (String)keys.next();
JSONObject value = jObj.getJSONObject(key);
...
}

org.json.JSONException: No value for "1"

Решение

JSONObject value = jObj.getJSONObject(key);

JSONObject value = values.getJSONObject(key);

Другие решения

JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");

if (!error) {
JSONObject values = jObj.getJSONObject("values");
Iterator<?> keys = values.keys();

while(keys.hasNext()) {
String key = (String)keys.next();
JSONObject value = values.getJSONObject(key);
...
}

Я получаю следующую строку JSON, которую мне нужно проанализировать:

response => {
    "error":false,
    "uid":39,
    "user":{
        "name":"my username",
        "email":"[email protected]",
        "created_at":"2019-05-15 13:22:19",
        "updated_at":null,
        "imagen":null,
        "nombre":null,
        "apellidos":null,
        "nivel_usuario":null,
        "id_usuario":39,
        "unique_id":null,
        "verified":null,
        "cel_verificado":null,
        "tel":"123456789",
        "code_cel":null
    }
}

Мне нужно получить значения для полей внутри ключевого пользователя.

Я пытаюсь следующим образом, но не работает:

String errorMsg = jObj.getString("error_msg");

Здесь я получаю исключение:

W/System.err: org.json.JSONException: No value for error_msg

и, следовательно, следующие строки не выполняются:

JSONObject jObj = new JSONObject(response);
JSONObject user = jObj.getJSONObject("user");
String email = user.getString("email");

Log.d("RESPUESTA", "RESPUESTA email" + email);