How To Send Array Of Params Using Volley In Android

I am developing an application which send lot of data to server.Now i want to send an array of params to a php page using volley.But i am not able to send it. Code for adding param

Solution 1:

Use

HashMap<String ,String> params=new HashMap<String, String>(7);
for(int i=1;i<=7;i++)
{
    params.put("params_"+i, arr[i]);
}

in CustomJobjectRequest class because currently you are using String type as value in Map in CustomJobjectRequest class but sending String[] type when create object of CustomJobjectRequest class.

Edit:

To send all values in single parameter to server use JSONObject.Create a json object using all key-value as:

JSONObject jsonObject=newJSONObject();
 for(int i=1;i<=7;i++)
    {
        arr[i]="questionId_"+i+"_"+"ans_"+i;
        jsonObject.put("params_"+i,arr[i]);
    }
HashMap<String ,String> params=newHashMap<String, String>();
params.put("params",jsonObject.toString());

TO send all values on server side get params and convert to JSON object and iterate to get all values

Solution 2:

Use

    Map<String, String> postParam = new HashMap<>();
    int i=0;
    for(Stringobject: friendIds){
        postParam.put("friendIds["+(i++)+"]", object);
        // you first send both data with same param name as friendnr[] ....  now send with params friendnr[0],friendnr[1] ..and so on
    }

this work for me, hope it work to you.

Solution 3:

Use google json Library to make json array.

compile'com.google.code.gson:gson:2.6.2'

And this code is to put json array in the body of the request

privatevoidsendTokenToServer(final String jsonArrayString) {
        String tag_string_req = "string_req";
        String url = Const.SEND_TOKEN_TO_SERVER;


        final StringRequest strReq = newStringRequest(Request.Method.POST,
                url, newResponse.Listener<String>() {

            @OverridepublicvoidonResponse(String response) {
                Log.d(TAG, response.toString());
                hideProgressDialog();
            }
        }, newResponse.ErrorListener() {

            @OverridepublicvoidonErrorResponse(VolleyError error) {
                VolleyLog.d(TAG, "Error: " + error.getMessage());
                hideProgressDialog();
            }
        }) {
            @OverridepublicMap<String, String> getHeaders() throws AuthFailureError {
                Map<String, String> header = newHashMap<>();
                header.put("Content-Type", "application/json; charset=utf-8");
                return header;
            }


            @OverridepublicStringgetBodyContentType() {
                return"application/json; charset=utf-8";
            }

            @Overridepublic byte[] getBody() throws AuthFailureError {
                try {
                    return jsonArrayString.getBytes("utf-8");
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
                returnnull;
            }

        };
        AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
    }

Solution 4:

Step 1

Make json param

Map<String, String> jsonParams = newHashMap<>();

Step 2

Make set or Arraylist why set or arraylist because no need to put fixed lenth

private Set<String>  arr;
  for(int i=1;i<=7;i++)
    {
        arr[i]="questionId_"+i+"_"+"ans_"+i;
        arr.add("params_"+i,arr[i]);
    }

Step 3 pass set object as a string

if (arr!= null) {
       jsonParams.put("param", arr.toString());
                  }