how I can get the city name of my current position

Question

I'm working with android studio and in a popup dialog I want that users can get their position but all I know to do is get my latitude and longitude.

This is the code

import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements LocationListener {
    private TextView latituteField;
    private TextView longitudeField;
    private LocationManager locationManager;
    private String provider;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        latituteField = (TextView) findViewById(R.id.TextView02);
        longitudeField = (TextView) findViewById(R.id.TextView04);


        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        Criteria criteria = new Criteria();
        provider = locationManager.getBestProvider(criteria, false);
        Location location = locationManager.getLastKnownLocation(provider);


        if (location != null) {
            System.out.println("Provider " + provider + " has been selected.");
            onLocationChanged(location);
        } else {
            latituteField.setText("Location not available");
            longitudeField.setText("Location not available");
        }
    }


    @Override
    protected void onResume() {
        super.onResume();
        locationManager.requestLocationUpdates(provider, 400, 1, this);
    }


    @Override
    protected void onPause() {
        super.onPause();
        locationManager.removeUpdates(this);
    }

    @Override
    public void onLocationChanged(Location location) {
        int lat = (int) (location.getLatitude());
        int lng = (int) (location.getLongitude());
        latituteField.setText(String.valueOf(lat));
        longitudeField.setText(String.valueOf(lng));
    }

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


    }

    @Override
    public void onProviderEnabled(String provider) {
        Toast.makeText(this, "Enabled new provider " + provider,
                Toast.LENGTH_SHORT).show();

    }

    @Override
    public void onProviderDisabled(String provider) {
        Toast.makeText(this, "Disabled provider " + provider,
                Toast.LENGTH_SHORT).show();
    }
} 

in the MainActivity.Can you help me?

I've added this in the manifest

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

but it still says "Location not available".

---

Answer 1

You need the GeoCoder class to get Address from a given Lat/Long. try the following:

Geocoder geoCoder = new Geocoder(this, Locale.getDefault()); //it is Geocoder
StringBuilder builder = new StringBuilder();
try {
    List<Address> address = geoCoder.getFromLocation(latitude, longitude, 1);
    int maxLines = address.get(0).getMaxAddressLineIndex();
    for (int i=0; i<maxLines; i++) {
    String addressStr = address.get(0).getAddressLine(i);
    builder.append(addressStr);
    builder.append(" ");
    }

String fnialAddress = builder.toString(); //This is the complete address.
} catch (IOException e) {}
  catch (NullPointerException e) {}

Code below should work for you: (Check the inline comments regarding your code)

import java.io.IOException;
import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements LocationListener {
private TextView latituteField;
private TextView longitudeField;
private TextView addressField; //Add a new TextView to your activity_main to display the address
private LocationManager locationManager;
private String provider;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    latituteField = (TextView) findViewById(R.id.TextView02);
    longitudeField = (TextView) findViewById(R.id.TextView04);
    addressField = (TextView) findViewById(R.id.TextView05); //Make sure you add this to activity_main


    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

    Criteria criteria = new Criteria();
    provider = locationManager.getBestProvider(criteria, false);
    Location location = locationManager.getLastKnownLocation(provider);


    if (location != null) {
        System.out.println("Provider " + provider + " has been selected.");
        onLocationChanged(location);
    } else {
        latituteField.setText("Location not available");
        longitudeField.setText("Location not available");
    }
}


@Override
protected void onResume() {
    super.onResume();
    locationManager.requestLocationUpdates(provider, 400, 1, this);
}


@Override
protected void onPause() {
    super.onPause();
    locationManager.removeUpdates(this);
}

@Override
public void onLocationChanged(Location location) {
    //You had this as int. It is advised to have Lat/Loing as double.
    double lat = location.getLatitude();
    double lng = location.getLongitude();

    Geocoder geoCoder = new Geocoder(this, Locale.getDefault());
    StringBuilder builder = new StringBuilder();
    try {
        List<Address> address = geoCoder.getFromLocation(lat, lng, 1);
        int maxLines = address.get(0).getMaxAddressLineIndex();
        for (int i=0; i<maxLines; i++) {
            String addressStr = address.get(0).getAddressLine(i);
            builder.append(addressStr);
            builder.append(" ");
        }

        String fnialAddress = builder.toString(); //This is the complete address.

        latituteField.setText(String.valueOf(lat));
        longitudeField.setText(String.valueOf(lng));
        addressField.setText(fnialAddress); //This will display the final address.

    } catch (IOException e) {
        // Handle IOException
    } catch (NullPointerException e) {
        // Handle NullPointerException
    }
}

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


}

@Override
public void onProviderEnabled(String provider) {
    Toast.makeText(this, "Enabled new provider " + provider,
            Toast.LENGTH_SHORT).show();

}

@Override
public void onProviderDisabled(String provider) {
    Toast.makeText(this, "Disabled provider " + provider,
            Toast.LENGTH_SHORT).show();
}
}

Answer 2

You can use google api to get current location address. Check out my answer in this post go get your city.

How to get city name from latitude and longitude coordinates in Google Maps?

Answer 3

You need to execute the Geocoder in a AysncTask (or in a Thread not in the same ThreadGroup as the UI Thread)!

public void getCityName(final Location location, final OnGeocoderFinishedListener listener) {
   new AsyncTask<Void, Integer, List<Address>>() {
      @Override
      protected List<Address> doInBackground(Void... arg0) {
         Geocoder coder = new Geocoder(getContext(), Locale.ENGLISH);
         List<Address> results = null;
         try {
            results = coder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
         } catch (IOException e) {
            // nothing
         }
         return results;
      }

      @Override
      protected void onPostExecute(List<Address> results) {
         if (results != null && listener != null) {
            listener.onFinished(results);
         }
      }
   }.execute();
}

With this abstract Listener

public abstract class OnGeocoderFinishedListener {
   public abstract void onFinished(List<Address> results);
}

Now call the method like this:

getCityName(location, new OnGeocoderFinishedListener() {
   @Override
   public void onFinished(List<Address> results) {
      // do something with the result
   }
});

Hope this will help some of you!