How to calculate distance between two marker points in android

Question

I am creating an android app which shows distance and duration of two marker points in the Map. In the onCreate() I have written the following code:

In MapsActivity.java

   private List<LatLng> getDirectionPolylines(List<RouteObject> routes){
        List<LatLng> directionList = new ArrayList<LatLng>();
        for(RouteObject route : routes){
            List<LegsObject> legs = route.getLegs();
            for(LegsObject leg : legs){
                String routeDistance = leg.getDistance().getText();
                String routeDuration = leg.getDuration().getText();
                setRouteDistanceAndDuration(routeDistance, routeDuration);
                List<StepsObject> steps = leg.getSteps();
                for(StepsObject step : steps){
                    PolylineObject polyline = step.getPolyline();
                    String points = polyline.getPoints();
                    List<LatLng> singlePolyline = decodePoly(points);
                    for (LatLng direction : singlePolyline){
                        directionList.add(direction);
                    }
                }
            }
        }
        return directionList;
    }

I am not clear how to calculate distance & duration in 'getText' in the code above. I was not able to see some APIs like Distancebetween() which is using LtnLtg as references. Please suggest how to calculate the distance and duration values.

But you have a list of LatLng objects some lines further down your code... — Ridcully, Jan 24 '17 at 20:50

score 1 · Answer 1 · answered Jan 24 '17 at 20:58

You should get the LatLngs of those markers (You can do that by using

marker.getPosition().getLatitude()

and

marker.getPosition().getLongitude()

Find the distance between these two LatLngs. There are several ways of doing that. You could use

Location.distanceBetween(
    startLatitude,
    startLongitude,
    endLatitude,
    endLongitude,
    results);

or

Location loc1 = new Location("");
loc1.setLatitude(lat1);
loc1.setLongitude(lon1);
Location loc2 = new Location("");
loc2.setLatitude(lat2);
loc2.setLongitude(lon2);
float distanceInMeters = loc1.distanceTo(loc2);

My question is how to get these latitudes from the markers.I understand that I can use these APIs. — garima, Jan 24 '17 at 21:01

score -1 · Answer 2 · answered Aug 19 '19 at 12:03

-1

var lat = marker.getPosition().lat();
var lng = marker.getPosition().lng();

answered Aug 19 '19 at 12:03

Pavel Mavel

19
3

How to calculate distance between two marker points in android

2 Answers2