Route draw between two locations google map in android

 implementation 'com.google.maps:google-maps-services:0.1.20'



DateTime now = new DateTime();
try {
             final DirectionsResult result = DirectionsApi.newRequest(getGeoContext())
                           .mode(TravelMode.DRIVING).origin(origin)
                            .destination(destination).departureTime(now)
                            .await();


                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            addPolyline(result);
                        }
                    });

                    Log.e("ZX", "ZX");

                } catch (ApiException e) {
                    e.printStackTrace();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }


  private void addPolyline(DirectionsResult results) {
        List<LatLng> decodedPath = results.routes[0].overviewPolyline.decodePath();
        ArrayList<com.google.android.gms.maps.model.LatLng> pathlist = new ArrayList<>();
        for (int i = 0; i < decodedPath.size(); i++) {
            pathlist.add(new com.google.android.gms.maps.model.LatLng(decodedPath.get(i).lat, decodedPath.get(i).lng));
        }
        googleMap.addPolyline(new PolylineOptions().addAll(pathlist).color(R.color.linecolor));
    }

    private GeoApiContext getGeoContext() {
        GeoApiContext geoApiContext = new GeoApiContext();
        return geoApiContext.setQueryRateLimit(3)
                .setApiKey(getString(R.string.google_maps_key))
                .setConnectTimeout(1, TimeUnit.SECONDS)
                .setReadTimeout(1, TimeUnit.SECONDS)
                .setWriteTimeout(1, TimeUnit.SECONDS);
    }

Date Picker Dialog

int mYear, mMonth, mDay;
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);




DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(),
        new DatePickerDialog.OnDateSetListener() {
            @Override            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {

                Calendar cal = new GregorianCalendar(year, monthOfYear, dayOfMonth);

                Date current = cal.getTime();
                int diff1 = new Date().compareTo(current);
                if (diff1 < 0) {

                    Snackbar.make(coordinatorLayout, "valid Message", Snackbar.LENGTH_LONG);

} else {

                    SimpleDateFormat dateFormat = new SimpleDateFormat("MM-dd-yyyy");
                    datePickerTv.setText(dateFormat.format(cal.getTime()));
                }
            }
        }, mYear, mMonth, mDay);
datePickerDialog.getDatePicker().setMaxDate(System.currentTimeMillis() - 1000);
datePickerDialog.show();