// rota inicial,e rota da unit
public void getEndereco() throws UnsupportedEncodingException {
    String o = String.valueOf(latitude +","+ longitude);
    String d = "Universidade Tiradentes - Avenida Murilo Dantas - Farolândia, Aracaju - SE";
    String origin = URLEncoder.encode(o, "UTF-8");
    String destination = URLEncoder.encode(d, "UTF-8");
}


    // WEB CONNECTION
        public void getRoute(final String origin, final String destination){

            new Thread(){
                public void run(){
                    String url= "http://maps.googleapis.com/maps/api/directions/json?origin="
                            + origin+"&destination="
                            + destination+"&sensor=false";

HttpResponse response;
                    HttpGet request;
                    AndroidHttpClient client = AndroidHttpClient.newInstance("route");

                    request = new HttpGet(url);
                    try {
                        response = client.execute(request);
                        final String answer = EntityUtils.toString(response.getEntity());

                        runOnUiThread(new Runnable(){
                            public void run(){
                                try {
                                    //Log.i("Script", answer);
                                    list = buildJSONRoute(answer);
                                    drawRoute();
                                }
                                catch(JSONException e) {
                                    e.printStackTrace();
                                }
                            }
                        });

                    }
                    catch(IOException e) {
                        e.printStackTrace();
                    }
                }
            }.start();
        }



//JSON
public List<LatLng> buildJSONRoute(String json) throws JSONException {
    JSONObject result = new JSONObject(json);
    JSONArray routes = result.getJSONArray("routes");

    long distanceForSegment = routes.getJSONObject(0).getJSONArray("legs").getJSONObject(0).getJSONObject("distance").getInt("values");
    JSONArray steps = routes.getJSONObject(0).getJSONArray("legs").getJSONObject(0).getJSONArray("steps");
    List<LatLng> lines = new ArrayList<LatLng>();

    for (int i = 0; i < steps.length(); i++) {
        Log.i("Script", "STEP: LAT: " + steps.getJSONObject(i).getJSONObject("start_location").getDouble("lat") + " | LNG: " + steps.getJSONObject(i).getJSONObject("start_location").getDouble("lng"));


        String polyline = steps.getJSONObject(i).getJSONObject("polyline").getString("points");

        for (LatLng p : decodePolyline(polyline)) {
            lines.add(p);
        }

        Log.i("Script", "STEP: LAT: " + steps.getJSONObject(i).getJSONObject("end_location").getDouble("lat") + " | LNG: " + steps.getJSONObject(i).getJSONObject("end_location").getDouble("lng"));
    }

    return lines;
}


// DECODE POLYLINE
private List<LatLng> decodePolyline(String encoded) {

    List<LatLng> listPoints = new ArrayList<LatLng>();
    int index = 0, len = encoded.length();
    int lat = 0, lng = 0;

    while (index < len) {
        int b, shift = 0, result = 0;
        do {
            b = encoded.charAt(index++) - 63;
            result |= (b & 0x1f) << shift;
            shift += 5;
        } while (b >= 0x20);
        int dlat = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
        lat += dlat;

        shift = 0;
        result = 0;
        do {
            b = encoded.charAt(index++) - 63;
            result |= (b & 0x1f) << shift;
            shift += 5;
        } while (b >= 0x20);
        int dlng = ((result & 1) != 0 ? ~(result >> 1) : (result >> 1));
        lng += dlng;

        LatLng p = new LatLng((((double) lat / 1E5)), (((double) lng / 1E5)));
        Log.i("Script", "POL: LAT: " + p.latitude + " | LNG: " + p.longitude);
        listPoints.add(p);
    }
    return listPoints;
}