我正在尝试计算当前位置与三个标记之间的距离。 一切都很好,但如果我改变我的位置,距离等于之前的距离,我不会得到新的坐标。这是我的代码:
mMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
Location current = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, true));
latng = String.valueOf(current.getLatitude());
lngon = String.valueOf(current.getLongitude());
Location club = new Location("clubloc");
club.setLatitude(Double.parseDouble(marker_data.get("lat")));
club.setLongitude(Double.parseDouble(marker_data.get("lng")));
double distance = current.distanceTo(club);
distance = distance / 1000;
distance = Math.round(distance * 100);
distance = distance / 100;
TextView dis = (TextView) findViewById(R.id.distance);
dis.setText(String.valueOf(distance) + "KM");
}
所以我的问题是如何更新坐标以便我总能找到合适的距离?