Unable to get longitude and latitude in android

Question

I am developing android app to get my current longitude and latitude from GPS. I have the following code

public class setting extends Activity {

TextView longval;
TextView latval;

@Override
public void onCreate(Bundle savedInstanceState){
/** Called when the activity is first created. */
    super.onCreate(savedInstanceState);
    setContentView(R.layout.setting);

    longval = (TextView)findViewById(R.id.longitudefield);
    latval = (TextView)findViewById(R.id.latitudefield);

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

//Location lastLocation = locationManager.getLastKnownLocation(locationManager.GPS_PROVIDER);
LocationListener locationListener = new myLocationListener();

locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
}
class myLocationListener implements LocationListener{

    public void onLocationChanged(Location location) {
        // TODO Auto-generated method stub
        if(location != null){
            double longitude = location.getLongitude();
            double latitude = location.getLatitude();
            //Toast.makeText(getApplicationContext(), Double.toString(longitude), Toast.LENGTH_SHORT).show();
            longval.setText(Double.toString(longitude));
            latval.setText(Double.toString(latitude));
        }
    }

    public void onProviderDisabled(String provider) {
        // TODO Auto-generated method stub

    }

    public void onProviderEnabled(String provider) {
        // TODO Auto-generated method stub

    }

    public void onStatusChanged(String provider, int status, Bundle extras) {
        // TODO Auto-generated method stub

    }

}

I am not sure when I put it into my phone (Galaxy Nexus). I saw a GPS icon on the bar located at the top of my phone. However, the textfield is not updated to show my current longitude and latitude. I would like to ask if it is the problem of my code or my phone? I am just switching on wifi without mobile data. It seems that onLocationChanged is not invoked.

Thanks everyone!

Providing a [SSCE](http://sscce.org/) is a start. And since it "seems that onLocationChanged is not invoked", you should check that. — keyser, May 23 '12 at 09:17
I just used the emulator to fix those two values and they are correctly shown in the emulator. However, I was unable to do it on my mobile devices. — user1311794, May 23 '12 at 09:27
Its difficult to get gps update when you are inside a building. — Rasel, May 23 '12 at 09:29
I just realize that it might be the problem. Does it mean that my code is able to work? — user1311794, May 23 '12 at 09:32

score 4 · Accepted Answer · answered May 23 '12 at 09:45

4

Its difficult to get Lat,Long inside room/apartment using GPS.Instead of LocationManager.GPS_PROVIDER use LocationManager.NETWORK_PROVIDER..it ll solve ur problem.

answered May 23 '12 at 09:45

P Srinivas Goud

886
1
12
30

I would like to ask how to change to code for NETWORK_PROVIDER. Just changing locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener); to locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener); } ? } – user1311794 May 23 '12 at 09:57
yes...if ur using getLastKnownLocation() method their also use NETWORK_PROVIDER.. – P Srinivas Goud May 23 '12 at 10:51

score 0 · Answer 2 · answered Sep 28 '12 at 03:21

0

You Code is correct.After install it on your device change your current location at least 10 meter.We go from your current room to another room that is at least 10 meter away.I hope you will get your output....

answered Sep 28 '12 at 03:21

Sajal Saha

169
2
12

Unable to get longitude and latitude in android

2 Answers2

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