JSON request using Volley

Question

Im trying to make a JSON request using Volley, i was able to successfully make a request using StringRequest but now have an error when trying to do a JSONRequest.

private void postData(final String param, final TextView tv) {
    RequestQueue request = Volley.newRequestQueue(this);

    JsonObjectRequest postReq = new JsonObjectRequest(Request.Method.GET, url_login, new Response.Listener<JsonReader>() {
        @Override
        public void onResponse(JsonReader response) {
            tv.setText(response); // We set the response data in the TextView
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            System.out.println("Error [" + error + "]");
        }
    }) {
        /**
         * Add the headers to the request
         * @return headers
         * @throws AuthFailureError
         */
        @Override
        public Map getHeaders() throws AuthFailureError {
            Map headers = new HashMap();
            headers.put("customHeader", "someCrap");
            System.out.println(headers); //testing output of headers
            return headers;
        }
    };
    request.add(postReq);
}

Im getting an error under the tv.setText(response);

Cannot resolve method 'setText(android.util.JsonReader)'

I would like to output the Json request as a test to text in the TextView labelled "tv"

Thank you

Answer 1

TextView does not accept JsonReader. You need CharSequence or String for that.