Android how to use location.distanceTo()

Question

I am using a fragement, I need to get my currently Location (lat and lng) and I need to calculate my currently location with the destination location.

Can you pls give me a hand. what is the best way to calculate the location:

How can I get the distance from my currently location and the destination location using lat and lng ;

    LocationManager locationManager;
    Location locatio;



locationManager = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);

location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);





String product_latitude     = "3.121191";
            String product_longtitude   = "101.673298";

            Double latitude     = Double.valueOf(product_latitude);
            Double longtitude   = Double.valueOf(product_longtitude);

            // Calculate the Distance
            String product_distance = location.distanceTo(latitude, longtitude);

Answer 1

Try this

double latitude=lat;
double longitude=lng;    
float distance=0;
Location crntLocation=new Location("crntlocation");
crntLocation.setLatitude(currentLatitude);
crntLocation.setLongitude(currentLongitude);

Location newLocation=new Location("newlocation");
newLocation.setLatitude(latitude);
newLocation.setLongitude(longitude);


//float distance = crntLocation.distanceTo(newLocation);  in meters
distance =crntLocation.distanceTo(newLocation) / 1000; // in km

Answer 2

You can use static method of Location: distanceBetween to get distance between 2 locations.

float [] results = new float[5]; 
Location.distanceBetween(startLatitude, startLongitude, endLatitude,
endLongitude, results)

doc: here