Apps Android Google Maps. Polylines not drawn correctly

[CommonDandy]

I am trying to draw a costume route on a Google map. The route is displayed but I get some extra polylines in it which make the route wrong.




I am drawing the lines using this method:

// Executes in UI thread, after the parsing process                  protected void onPostExecute(List<List<HashMap<String, String>>> result)         {             ArrayList<LatLng> points = null;             PolylineOptions lineOptions = null;              // Traversing through all the routes             for(int i=0;i<result.size();i++)             {                 points = new ArrayList<LatLng>();                 lineOptions = new PolylineOptions();                  // Fetching i-th route                 List<HashMap<String, String>> path = result.get(i);                  // Fetching all the points in i-th route                 for(int j=0;j<path.size();j++)                 {                     HashMap<String,String> point = path.get(j);                       double lat = Double.parseDouble(point.get("lat"));                     double lng = Double.parseDouble(point.get("lng"));                     LatLng position = new LatLng(lat, lng);                       points.add(position);                 }                  // Adding all the points in the route to LineOptions                                    lineOptions.addAll(points);                 lineOptions.width(7);                 lineOptions.color(Color.GREEN);             }              // Drawing polyline in the Google Map for the i-th route             mGoogleMap.addPolyline(lineOptions);         }   [CODE]

and I am putting the coordinates of the segments using this code:

  [CODE]public List<List<HashMap<String,String>>> parse(Variant variant) {            List<List<HashMap<String, String>>> routes = new ArrayList<List<HashMap<String,String>>>();      try      {                 /** Traversing all routes */         for(int i=0;i < variant.route.length; i++)         {                            List<HashMap<String, String>> path = new ArrayList<HashMap<String, String>>();              /** Traversing all legs */             for(int j=0;j < variant.route[i].segments.length; j++)             {                                                       /** Traversing all points */                 for(int l=0;l < variant.route[i].segments[j].coordinate.length; l++)                 {                     HashMap<String, String> hm = new HashMap<String, String>();                     hm.put("lat", Double.toString(variant.route[i].segments[j].coordinate[l].latitude));                     hm.put("lng", Double.toString(variant.route[i].segments[j].coordinate[l].longitude));                     path.add(hm);                 }              }routes.add(path);             }     }catch (Exception e){     }     return routes; }    [CODE]

I dont understand what I am doing wrong. Is polyline the best solution for drawing a route on a map?