1º Pegando sua localização:
public Location getLocation(final Context mContext) {
boolean isGPSEnabled = false;
boolean isNetworkEnabled = false;
long MIN_DISTANCE_CHANGE_FOR_UPDATES = 1;
Location location = null;
LocationManager locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
isNetworkEnabled = isConnected((Activity)mContext);
if (isNetworkEnabled) {
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, TIME, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null) {
location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
}
if (isGPSEnabled) {
if (location == null) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, TIME, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null)
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
}
}
return location;
}
private static boolean isOnline(Activity contexto) {
try {
ConnectivityManager cm = (ConnectivityManager) contexto.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo().isConnectedOrConnecting();
} catch (Exception e) {
return false;
}
}
2º Pegando um endereço e transformando em georeferencia:
Geocoder geocoder = new Geocoder(this, Locale.getDefault());
List<Address> addresses = geocoder.getFromLocationName(myLocation, 1);
Address address = addresses.get(0);
double longitude = address.getLongitude();
double latitude = address.getLatitude();
Agora se você não faz ideia de como implementar esses métodos, sugiro fortemente que procure artigos sobre o assunto.
Você pode começar por aqui
