Find distance between two coordinates in km.

distancecoordinates

private float getDistanceBetweenCoordinates(double latitude1,
			double longitude1, double latitude2, double longitude2) {
		Location locationA = new Location("point A");

		locationA.setLatitude(latitude1);
		locationA.setLongitude(longitude1);
		Location locationB = new Location("point B");
		locationB.setLatitude(latitude2);
		locationB.setLongitude(longitude2);
		float meter = locationA.distanceTo(locationB);
		float distance = meter / 1000;
		String d = String.format("%.2f", distance);
		return Float.parseFloat(d);
	}