public void getLoc() {    // 位置     LocationManager locationManager;     LocationListener locationListener;     Location location;     String contextService = Context.LOCATION_SERVICE;     String provider;     double lat;     double lon;     locationManager = (LocationManager) getSystemService(contextService);     Criteria criteria = new Criteria();     criteria.setAccuracy(Criteria.ACCURACY_FINE);// 高精度     criteria.setAltitudeRequired(false);// 不要求海拔     criteria.setBearingRequired(false);// 不要求方位     criteria.setCostAllowed(true);// 允許有花費     criteria.setPowerRequirement(Criteria.POWER_LOW);// 低功耗     // 從可用的位置提供器中，匹配以上標(biāo)準(zhǔn)的最佳提供器     provider = locationManager.getBestProvider(criteria, true);     // 獲得最后一次變化的位置     location = locationManager.getLastKnownLocation(provider);     locationListener = new LocationListener() {     public void onStatusChanged(String provider, int status,     Bundle extras) {     // TODO Auto-generated method stub     }     public void onProviderEnabled(String provider) {     // TODO Auto-generated method stub     }     public void onProviderDisabled(String provider) {     // TODO Auto-generated method stub     }     public void onLocationChanged(Location location) {     lat = location.getLatitude();     lon = location.getLongitude();     Log.e("android_lat", String.valueOf(lat));     Log.e("android_lon", String.valueOf(lon));     }     };     // 監(jiān)聽位置變化，2秒一次，距離10米以上     locationManager.requestLocationUpdates(provider, 2000, 10,     locationListener);}