Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.location.Location;

import android.util.Log;

public class Main {
    /**
     * 
     * @param lat1
     * @param lng1
     * @param lat2
     * @param lng2
     * @return distance in km
     */

    public static float distFrom(double lat1, double lng1, double lat2, double lng2) {
        Log.e("lat1" + lat1 + "  long1" + lng1, "lat 2" + lat2 + "  long2" + lng2);
        /*double earthRadius = 6371;
        double dLat = Math.toRadians(lat2 - lat1);
        double dLng = Math.toRadians(lng2 - lng1);
        lat1 = Math.toRadians(lat1);
        lat2 = Math.toRadians(lat2);
        double sindLat = Math.sin(dLat / 2);
        double sindLng = Math.sin(dLng / 2);
        double a = Math.pow(sindLat, 2) + Math.pow(sindLng, 2) * Math.cos(lat1) * Math.cos(lat2);
        double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
        double dist = earthRadius * c;
        Log.e("difference in distance",""+dist);
        return distance(lat1, lng1, lat2, lng2);*/
        float[] result = new float[3];
        Location.distanceBetween(lat1, lng1, lat2, lng2, result);
        //conversion to m
        result[0] = result[0] / 1000;

        return result[0];

    }
}