android-volley

See Request.setRetryPolicy() and the constructor for DefaultRetryPolicy, e.g. JsonObjectRequest myRequest = new JsonObjectRequest(Method.GET, url, null, new Response.Listener<JSONObject>() { @Override public void onResponse(JSONObject response) { Log.d(TAG, response.toString()); } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.d(TAG, “Error: ” + error.getMessage()); } }); myRequest.setRetryPolicy(new DefaultRetryPolicy( MY_SOCKET_TIMEOUT_MS, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));