How to parse JSON array with single element without any object in Retrofit?

Question

I am using Retrofit which uses GSON for parsing.The server will check the parameter i am sending and returns two responses Accordingly. If the parameter is valid i am getting the following response

[
  true
]

If it is not valid then i get response as,

   [
      "Sorry, <em class=\"placeholder\">[email protected]</em> is not recognized as a user name or an e-mail address."
    ]

This is the call method i am using.

@Override

public void onResponse(Call<String> call, Response<String> response) {
mProgressBar.setVisibility(View.GONE);
    Log.d("Response ", ""+response);


}

here response.body giving me as null. But there is a response.which is viewable in OKHttp Log.

Make that parameter as Object. After parsing check if the parsed Object instanceof Boolean or String. — Akshay Bhat 'AB'
– Akshay Bhat 'AB', Commented Aug 29, 2016 at 11:48

h_patel · Accepted Answer · 2016-08-29 12:14:01Z

1

you can try this

 JSONArray jArray=new JSONArray(yourString);

 String str=jArray.getString(0);;
 if(str.equalsIgnoreCase("true")
 {
      //your code
 }else
 {
 }

edited Aug 29, 2016 at 12:14

answered Aug 29, 2016 at 11:55

h_patel

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6 Comments

Noufal Over a year ago

i am not getting as jsonob.

Noufal Over a year ago

i am not even getting as string

Noufal Over a year ago

the value i am getting response.body() is null in my activity.But there is a response which we can see inD/OkHttp: ["Sorry, <em class=\"placeholder\">[email protected]</em> is not recognized as a user name or an e-mail address."]

h_patel Over a year ago

first convert it into string than try it .

Noufal Over a year ago

Thats what i am trying !! Thats actually my question

|

Hardik Vaghasiya · Accepted Answer · 2016-08-29 11:51:48Z

0

JSONArray jarray = new JSONObject(jsonString);
for (int i = 0; i < jarray.length(); i++) {
      String string = jarray.getString(i);
      log.e("String",string);
}

that's working great. Please try this.

answered Aug 29, 2016 at 11:51

Hardik Vaghasiya

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6 Comments

Noufal Over a year ago

I am not even getting JSONObject

Hardik Vaghasiya Over a year ago

but you can get responce in onsuccess method of retrofit. In this on siccess method you can parsing directly.

Noufal Over a year ago

i am getting null as response.body()

Hardik Vaghasiya Over a year ago

first you check your url. if url is right check your retrofit code.

Hardik Vaghasiya Over a year ago

public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) { String sresponce = response.body(); }

|

Community · Accepted Answer · 2017-05-23 12:25:19Z

0

You can use JsonParser provided by Gson. It will parse the json input to dynamic JsonElement.

Look at MByD example:

 public String parse(String jsonLine) {
    JsonElement jelement = new JsonParser().parse(jsonLine);
    JsonObject  jobject = jelement.getAsJsonObject();
    jobject = jobject.getAsJsonObject("data");
    JsonArray jarray = jobject.getAsJsonArray("translations");
    jobject = jarray.get(0).getAsJsonObject();
    String result = jobject.get("translatedText").toString();
    return result;
}

edited May 23, 2017 at 12:25

CommunityBot

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answered Aug 29, 2016 at 11:53

Ilya Gazman

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Comments

Hala.M · Accepted Answer · 2016-08-30 10:14:38Z

0

since the server return diffrent codes

can you try

Call<Void>

and check the response code this might work for now until you know what is wrong void will not parse any thing so it shouldn't cause a crash

///////

did you try

Call<ArrayList<String>>

also are you sure the server returns 200 in both cases ?

edited Aug 30, 2016 at 10:14

answered Aug 29, 2016 at 16:55

Hala.M

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2 Comments

Noufal Over a year ago

I tried this one first.that time i got null pointer exception. the server returns 200 and 406 respectively different in two cases.

Hala.M Over a year ago

try Call<Void> and tell me how did it go

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