Reverse geocoding in Android with touch event

问题

I have gone through several articles through this stack overflow and other related articles with reverse geocoding.

I have intended to find the name of the place with the given latitude and longitude from touch event. I got the latitude and longitude from the touch event but I couldn't get the address from that geo coordinate, it passes in the exception rather then being in the try area,

here is the code :

public boolean onTouchEvent(MotionEvent event, MapView mapView)
{
     //---when user lifts his finger---
        //---when user lifts his finger---
         if (event.getAction() == 1) {
         GeoPoint p = mapView.getProjection().fromPixels(
         (int) event.getX(),
         (int) event.getY());
                  Toast.makeText(getBaseContext(),
         p.getLatitudeE6() / 1E6 + "," +
         p.getLongitudeE6() /1E6 ,
         Toast.LENGTH_SHORT).show();

         Geocoder geoCoder = new Geocoder(getBaseContext(), Locale.getDefault());
         try {
         List<Address> addresses = geoCoder.getFromLocation(p.getLatitudeE6() / 1E6, p.getLongitudeE6() / 1E6, 1);

         String strCompleteAddress= "";
         if (addresses.size() > 0)
         {
         for (int i=0; i<addresses.get(0).getMaxAddressLineIndex();i++)
        strCompleteAddress+= addresses.get(0).getAddressLine(i) + "\n";
         }
         Log.i("MyLocTAG => ", strCompleteAddress);
         Toast.makeText(getBaseContext(), strCompleteAddress,            Toast.LENGTH_LONG).show();
         }
         catch (IOException e) {

         e.printStackTrace();
         Toast.makeText(getBaseContext(), "exception", Toast.LENGTH_LONG).show();
         }
         return true;
         }
         else
         return false;
     }
}

please get me to the solution to it.

回答1:

so The emulator 2.2 has bug associated with Reverse Geocoding. So we need to download version like 2.1 and try. It will provide the desired result

回答2:

What exception do you get? Does you App have INTERNET permission? I'm pretty sure you'll need this for Geocoder to work (as it calls a Google Service via Internet).

来源：https://stackoverflow.com/questions/12555032/reverse-geocoding-in-android-with-touch-event

标签

android

android-emulator