如何计算到位置的距离和时间答案

【问题标题】：How to calculate distance and time to location如何计算到位置的距离和时间
【发布时间】：2014-10-24 13:04:22
【问题描述】：

我需要使用 gps 计算当前位置到给定位置之间的时间和距离。

哪位大侠给点意见

  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) {
        }
    };

【问题讨论】：

标签： android gps geolocation

【解决方案1】：

Location 具有distanceTo 方法，该方法返回此位置与给定位置之间的近似距离（以米为单位）。例如

float distance = gpsLocation.distanceTo(dstLocation);

【讨论】：

【解决方案2】：

看看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;

顺便问一下，已经有问题了

Calculating distance between two geographic locations

【讨论】：