Return an address

Question

I’m finalizing a project where will open a alertDialog. Once the user presses OK he will make a confirmation and his location will be informed by a Toast. I would like to know how I can return the location where the user is.

Answer 1

Do it this way:

public class main extends AppCompatActivity {

    LocationListener locationListener;
    LocationManager locationManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Faço o objeto da classe
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        locationListener = new MyLocationListener();

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }

        assert locationManager != null;
        //Requesto a localização, os parâmetros 500 e 0 são intervalo que irei pegar o localização e a variação em metros que irei pegar respectivamente
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 500, 0, locationListener);

    }

    public class MyLocationListener implements LocationListener {

            @Override
            public void onLocationChanged(Location loc) {

                   //Peguei a latitude e longitude
                   double lat = loc.getLatitude();
                   double log = loc.getLongitude();

                   //Agora transformo em endereço:
                   String cityName = null;
                   Geocoder gcd = new Geocoder(context, Locale.getDefault());
                   List<Address> addresses;
                   try {
                        addresses = gcd.getFromLocation(loc.getLatitude(),
                        loc.getLongitude(), 1);

                        if (addresses.size() > 0) {

                           //Aqui você chama seu alert, o endereço se pega da maneira abaixo:
                           //Endereço = addresses.get(0).getLocality());

                           System.out.println(addresses.get(0).getLocality());
                           cityName = addresses.get(0).getLocality();

                        }
                    }catch (IOException e) {
                           e.printStackTrace();
                    }

                   //Depois de pegar a localização eu para o onLocationChanged
                   locationManager.removeUpdates(this);

            }

            @Override
            public void onProviderDisabled(String provider) {}

            @Override
            public void onProviderEnabled(String provider) {}

            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {}

        }
}

Chewier than this only if I make your alertDialog kkkkkkkkkkkkkkkkkk, remember to make a method that checks if the GPS is active before trying to pick up the location, as an exception may occur if it is turned off.

Remembering that you should add in the Manifest:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />