嗨,我做了一个简单的应用程序,获取当前位置的GPS,并显示当前城市,但当我运行它,它显示经纬度正确,但返回城市为空。
Location mLastLocation = locationResult.getLastLocation();
lat = mLastLocation.getLatitude() + "";
lon = mLastLocation.getLongitude() + "";
Geocoder gcd = new Geocoder(MLocationListener.this, Locale.getDefault());
List<Address> addresses;
try {
addresses = gcd.getFromLocation(mLastLocation.getLatitude(), mLastLocation.getLongitude(), 1);
if (addresses.size() > 0) {
// Log.d("city", addresses.get(0).getLocality());
String cityName = addresses.get(0).getLocality();
//Toast.makeText(MLocationListener.this, cityName, Toast.LENGTH_SHORT).show();
}
} catch (IOException e) {
e.printStackTrace();
}
试试这个解决方案。
Google map = googleMap;
this.map = googleMap;
this.map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
this.map.getUiSettings().setZoomControlsEnabled(true);
this.map.getUiSettings().setCompassEnabled(true);
this.map.getUiSettings().setMyLocationButtonEnabled(true);
this.map.getUiSettings().setZoomGesturesEnabled(true);
this.map.getUiSettings().setRotateGesturesEnabled(true);
String s = "New York";
List<Address> addressList = null;
if(s!=null){
Geocoder geocoder = new Geocoder( ); //inside put "getActivity()" or "this"
try{
addressList=geocoder.getFromLocationName(s, 1);
}catch(IOException e){
e.printStackTrace();
}
Address address = addressList.get(0);
LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
map.addMarker(new MarkerOptions().position(latLng).title(s));
map.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 10));
}
把这种类型的解决方案放在一个实现了... OnMapReadyCallback
的方法中,在 OnMapReady(GoogleMap googleMap)
希望能帮到你