如何计算eclipse中多个标记的总方向

Question

我需要在多个方向上获得总距离，但是当我运行它时只显示当前距离。如图所示，当我点击第三个标记时，它只计算第二个方向（它应该是第一个和第二个）。非常感谢你:)）

            // 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);

                if(j==0){    // Get distance from the list
                    distance = (String)point.get("distance");
                    continue;
                }else if(j==1){ // Get duration from the list
                    duration = (String)point.get("duration");
                    continue;
                }

                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(3);
        }
    tvDistanceDuration.setText(" Distance :"+distance + ", Duration:"+duration);