11

我试图从地址中获取纬度和经度，问题是..当我只给出城市名称时，它会给我正确的纬度和经度，而当我给出完整的地址（如州、城市名称、街道号）时，它会做不给我正确的纬度和经度...

感谢您的合作回应...

我的代码是..

//String addressStr = "faisalabad";/// this give me correct address
        String addressStr = "Sainta Augustine,FL,4405 Avenue A";
          Geocoder geoCoder = new Geocoder(MapClass.this, Locale.getDefault());

          try {
              List<Address> addresses =
          geoCoder.getFromLocationName(addressStr, 1); 
              if (addresses.size() >  0) {
                 latitude = addresses.get(0).getLatitude(); longtitude =
          addresses.get(0).getLongitude(); }

          } catch (IOException e) { // TODO Auto-generated catch block
          e.printStackTrace(); }


        pos = new LatLng(latitude, longtitude);
        googleMap.addMarker(new MarkerOptions().icon(
                BitmapDescriptorFactory
                        .defaultMarker(BitmapDescriptorFactory.HUE_RED))
                .position(pos));
        googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(pos, 15));
        googleMap.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);
4

2 回答 2

6

我不... :)

只有顺序不正确...

首先给出街道地址而不是城市名称和州名......它给我地址的正确纬度和经度...... :)

和改变

Geocoder geoCoder = new Geocoder(MapClass.this, Locale.getDefault());

到

Geocoder geoCoder = new Geocoder(MapClass.this);

谢谢大家的时间...

于 2013-05-22T11:14:14.517 回答
1

这是我的解决方案：

private void createMarkerWithLocation() {
    /* Use the LocationManager class to obtain GPS locations */
    LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
    mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 300000, 40, this);

    Location location = mlocManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); 
    /*check both providers even for lastKnownLocation*/
    if (location == null)
        location = mlocManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    if(location != null) {

        double latitude = location.getLatitude();
        double longitude = location.getLongitude();

        LatLng currentLatLng = new LatLng(latitude, longitude);

        if(isConnected(this)) {
            Geocoder gCoder = new Geocoder(ChoiceDestinationActivity.this);
            List<Address> addresses = gCoder.getFromLocation(latitude, longitude, 1);
            String address = addresses.get(0).getAddressLine(0);
            String city = addresses.get(0).getAddressLine(1);
            String country = addresses.get(0).getAddressLine(2);
            Toast.makeText(this, country + ", " + city + ", " + address, Toast.LENGTH_SHORT).show();

            marker = map.addMarker(new MarkerOptions()
            .position(currentLatLng)
            .title(city)
            .snippet(address)
            .icon(BitmapDescriptorFactory.fromResource(R.drawable.marker)));
        }
    }
}

public static boolean isConnected(Context context) {
    NetworkInfo ni = ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
    return (ni!=null && ni.isAvailable() && ni.isConnected());
}

我用它在谷歌地图上添加一个标记。它允许您检索有关用户位置的所有信息。

我希望你有帮助！

于 2013-05-22T08:38:52.913 回答