How to add API key for Authorization as header in android volley?

Question

I am attempting to get values from my api which has API key and value for simple security. When I use postman, it works well and only returns value when api key and its value matches like so.

The Authorization uses Key and Value as Header which responds with data.

I am attempting to get the same result with android volley and getting no success.

    RequestQueue queue = Volley.newRequestQueue(this);

        String url = "http://10.0.2.2:8080/api/mynewapp";

        JsonArrayRequest request = new JsonArrayRequest(Request.Method.GET, url, null, new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {
                    for (int i = 0; i < response.length(); i++) {
                    try {
                        JSONObject reqobject = response.getJSONObject(i);
                        int petId = reqobject.getInt("petId");
                        String petName = reqobject.getString("petName");
                        Log.i("petName : ", petName);    

                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }

            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                error.printStackTrace();
            }
        })
         {
            @Override
            public Map<String, String> getHeaders() throws AuthFailureError {
                Map<String, String> headers = new HashMap<>();               
                headers.put("Content-Type", "application/json");
                headers.put("petsapiheader977", "petsapikey977");
                return headers;

            }
        };

        queue.add(request);

I am getting error right now.

W/System.err: com.android.volley.NoConnectionError: java.net.SocketException: socket failed: EACCES (Permission denied)