如何在android中查找两个GPS坐标之间的相似度

Location location1 = new Location("");
location1.setLatitude(latitude1);
location1.setLongitude(longitude1);

Location location2 = new Location("");
location2.setLatitude(latitude2);
location2.setLongitude(longitude2);

float distance = location1.distanceTo(location2);

double distance = Math.abs(latitude1 - latitude2) + Math.abs(longitude1 - longitude2);

double earthRadius = 6371; // 地球半径，单位为千米

double latDistance = Math.toRadians(latitude2 - latitude1);
double lonDistance = Math.toRadians(longitude2 - longitude1);

double a = Math.sin(latDistance / 2) * Math.sin(latDistance / 2)
        + Math.cos(Math.toRadians(latitude1)) * Math.cos(Math.toRadians(latitude2))
        * Math.sin(lonDistance / 2) * Math.sin(lonDistance / 2);

double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));

double distance = earthRadius * c;