Question

I have a question about the google api function called getFromLocationName()
I use the following code to put the address where I want to get the coordinates.

Geocoder geoCoder = new Geocoder(test.this, Locale.TAIWAN);
float add_lat=0,add_lot=0;
try {
      List addresses = geoCoder.getFromLocationName(location,1);
      if (!addresses.isEmpty()) {
      add_lat=(float) (addresses.get(0).getLatitude()*1E6);
      add_lot=(float) (addresses.get(0).getLongitude()*1E6);
      }
} catch (IOException e) {
     e.printStackTrace();
}

When I printed the values of coordinates,I always got zero point zero.
I don’t know how to solve this problem,because it didn’t get any error message when I compiled my code.

Please give me your point of views
Thanks 🙂

Answer 1

I would suggest you should first check the presence of GeoCoder implementation and only then use it. It is not necessarily present in all devices.

The Geocoder class requires a backend
service that is not included in the
core android framework. The Geocoder
query methods will return an empty
list if there no backend service in
the platform. Use the isPresent()
method to determine whether a Geocoder
implementation exists.