Question

I’m trying to have GPS coordinates sent to a text message. This code works, but every time the GPS updates location, it tries to send a new text message. I can’t figure out how to stop the location updates. This is what I have currently…I realize it may not be the most efficient way to do it.

Any help would be appreciated!

  public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
    LocationListener mlocListener = new MyLocationListener();
    mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, mlocListener);

}

public void GPSDisable() {
    LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
    LocationListener mlocListener = new MyLocationListener();
    mlocManager.removeUpdates(mlocListener);
}

public class MyLocationListener implements LocationListener {

    @Override

    public void onLocationChanged(Location loc) {

        loc.getLatitude();
        loc.getLongitude();

        double latitude = loc.getLatitude();
        double longitude = loc.getLongitude();

        Intent smsIntent = new Intent(Intent.ACTION_VIEW);
        smsIntent.setType("vnd.android-dir/mms-sms");
        smsIntent.putExtra("address", "5555555555");
        smsIntent.putExtra("sms_body", "Location:"+latitude+","+longitude);
        GPSDisable();
        startActivity(smsIntent);

    }


    @Override

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

    {

    }


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

    }

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

    }

}

@Override
public void onLocationChanged(Location location) {
    // TODO Auto-generated method stub

}

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

}

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

}

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

}

}

Answer 1

I would set two global variables latitude and longitude.
This variables would be updated every onLocationChanged. You cannot change this comportament, but you can get out from there the sending of sms.

I would send the sms on a timer after 5 seconds let’s say.

new java.util.Timer().schedule( 
    new java.util.TimerTask() {
        @Override
        public void run() {
           Intent smsIntent = new Intent(Intent.ACTION_VIEW);
    smsIntent.setType("vnd.android-dir/mms-sms");
    smsIntent.putExtra("address", "5555555555");
    smsIntent.putExtra("sms_body", "Location:"+latitude+","+longitude);

    startActivity(smsIntent);
        }
    }, 
    5000 );

And your onlocation changed could look like this

 @Override
public void onLocationChanged(Location loc) {
    loc.getLatitude();
    loc.getLongitude();

    latitude = loc.getLatitude();
    longitude = loc.getLongitude();


}