How to set custom header in Volley Request

Question

How can custom headers be set for a Volley request? At the moment, there is way to set body content for a POST request. I've a simple GET request, but I need to pass the custom headers alongwith. I don't see how JsonRequest class supports it. Is it possible at all?

Answer 1

The accepted answer with getParams() is for setting POST body data, but the question in the title asked how to set HTTP headers like User-Agent. As CommonsWare said, you override getHeaders(). Here's some sample code which sets the User-Agent to 'Nintendo Gameboy' and Accept-Language to 'fr':

public void requestWithSomeHttpHeaders() {     RequestQueue queue = Volley.newRequestQueue(this);     String url = "http://www.somewebsite.com";     StringRequest getRequest = new StringRequest(Request.Method.GET, url,          new Response.Listener<String>()          {             @Override             public void onResponse(String response) {                 // response                 Log.d("Response", response);             }         },          new Response.ErrorListener()          {             @Override             public void onErrorResponse(VolleyError error) {                 // TODO Auto-generated method stub                 Log.d("ERROR","error => "+error.toString());             }         }     ) {              @Override         public Map<String, String> getHeaders() throws AuthFailureError {                  Map<String, String>  params = new HashMap<String, String>();                   params.put("User-Agent", "Nintendo Gameboy");                   params.put("Accept-Language", "fr");                  return params;           }     };     queue.add(getRequest);  } 

Answer 2

It looks like you override public Map<String, String> getHeaders(), defined in Request, to return your desired HTTP headers.