Simple download JSON example using Volley

volleyExample.java

Volley.newRequestQueue(this).add(
  new JsonObjectRequest(Request.Method.GET, "http://your-url.com/file.json", null, 
    new Response.Listener<JSONObject>() {
      @Override
      public void onResponse(JSONObject response) {} // what happens on success?
    
  }, new Response.ErrorListener() {
      @Override
      public void onErrorResponse(VolleyError error) {} // what happens on fail?  
      
  })
);