Question

我需要使用gps计算当前位置与给定位置之间的时间和距离。

任何人请提出想法

  final TextView speedView = (TextView) findViewById(R.id.speedtxt);
     locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
     locationListener = new LocationListener() {
         public void onLocationChanged(Location location) {
             if (location.hasSpeed()) {
                float speed = location.getSpeed() * 3.6f;// km/h
                speedView.setText(String.format("%.0f km/h", speed));
            }
        }
        public void onProviderDisabled(String provider) {
        }

        public void onProviderEnabled(String provider) {
        }

        public void onStatusChanged(String provider, int status, Bundle extras) {
        }
    };

Answer 1

位置具有distanceTo方法，该方法返回此位置与给定位置之间的大致距离（以米为单位）。 E.g

float distance = gpsLocation.distanceTo(dstLocation);

Answer 2

查看 Location.distanceBetween（double startLatitude，double startLongitude，double endLatitude，double endLongitude，float [] results）方法

http://developer.android.com/reference/android/location/Location.html

//finding the distance between destination and mylocation

                Location.distanceBetween(startLatitude , startLongitude, endLatitude , endLongitude , results);
// to convert metre to KM
                if(results[0]>1000)
                {
                    distString = (double)Math.round(results[0]/1000)+"km";

                }
                else
                {
                    distString = Math.round(results[0])+"m";
                }
                Log.d("dist string",distString);
// Store the distances in array

                distance[i]=distString;

而且只是chek，已经有问题了

Calculating distance between two geographic locations

如何计算距离和时间到位置

2 个答案: