POST JsonObject with different data types (int, boolean etc.) params and get JsonArray response

[emreturgut]

I had to call json array post request with integer and string params. Firstly I tried with string request but when string request is used your hash map params must be string values.

After that I solved the problem with this way;

I have create CustomRequest class;

import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;
import com.android.volley.toolbox.HttpHeaderParser;
import com.android.volley.toolbox.JsonRequest;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.UnsupportedEncodingException;


public class CustomRequest extends JsonRequest<JSONArray> {

    public CustomRequest(String url, Listener<JSONArray> listener, ErrorListener errorListener) {
        super(Method.GET, url, null, listener, errorListener);
    }

    public CustomRequest(int method, String url, JSONObject jsonRequest,
                            Listener<JSONArray> listener, ErrorListener errorListener) {
        super(method, url, (jsonRequest == null) ? null : jsonRequest.toString(), listener,
                errorListener);
    }

    @Override
    protected Response<JSONArray> parseNetworkResponse(NetworkResponse response) {
        try {
            String jsonString = new String(response.data,
                    HttpHeaderParser.parseCharset(response.headers, PROTOCOL_CHARSET));
            return Response.success(new JSONArray(jsonString),
                    HttpHeaderParser.parseCacheHeaders(response));
        } catch (UnsupportedEncodingException e) {
            return Response.error(new ParseError(e));
        } catch (JSONException je) {
            return Response.error(new ParseError(je));
        }
    }
}

and I used the class like this way;

CustomRequest customRequest = new CustomRequest(Request.Method.POST, url,  (params != null) ? new JSONObject(params) : null, new Response.Listener<JSONArray>() {

            @Override
            public void onResponse(JSONArray response) {
                callback.onSuccessResponse( response);

            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                
                callback.onErrorResponse(error);

            }
        }){

            @Override
            public Map<String, String> getHeaders() throws AuthFailureError {

                HashMap<String, String> params = new HashMap<String, String>();
                

                return params;

            }
        };

I hope this solution also helps someone else who has this problem

[Dave-Algorism]

Not working for me. My issue is, where did u get params in (params != null) ? new JSONObject(params) : null from? I have followed your code to solve this exact problem. Also, what about

@OverRide
protected Map<String, String> getParams() throws AuthFailureError {
// Posting parameters to login url
Map<String, String> params = new HashMap<>();
params.put("email", mEmail);
params.put("password", mPassword);

              return params;
        }

for example?

[israilbony]

Thank you great code boss