How to get location when it changes

Question

I would like to know there is a way to get location if only it changes? I know android provides this http://developer.android.com/training/location/receive-location-updates.html

Answer 1

// try this way
// declaration
public static LocationManager mlocManager;
public static LocationListner mListner;
private static String latitude;
public static String longitude;

//initialization
try {
    if (mlocManager == null)
            mlocManager = (LocationManager) getSystemService(Activity.LOCATION_SERVICE);
    if (mListner == null)
            mListner = new LocationListner();
            runOnUiThread(new Runnable() {

                @Override
                public void run() {
                    try {
                        try {
                            mlocManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER, 0, 0, mListner);
                        } catch (Throwable e) {
                            e.printStackTrace();
                        }

                        mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mListner);
                    } catch (Throwable e) {
                        e.printStackTrace();
                    }
                    try {
                        mlocManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, mListner);
                    } catch (Throwable e) {
                        e.printStackTrace();
                    }

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

//listener
class LocationListner implements LocationListener {

        @Override
        public void onLocationChanged(Location location) {
            setLatitude("" + location.getLatitude());
            setLongitude("" + location.getLongitude());
            setCurrentLocation(location);
        }

        @Override
        public void onProviderDisabled(String provider) {
        }

        @Override
        public void onProviderEnabled(String provider) {
        }

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

}
// Setter
public void setLatitude(String latitide) {
    this.latitude = latitide;
}
// Getter
public String getLatitude() {

    try {
        if (latitude != null) {
            return latitude;
        }
        if(mlocManager==null)
        {
            mlocManager = (LocationManager) getSystemService(Activity.LOCATION_SERVICE);
        }
        Location loc = mlocManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        if (loc == null) {
            loc = mlocManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            if (loc == null) {
                loc = mlocManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
            }
            if (loc != null) {
                    return "" + loc.getLatitude();
            }
            } else {
                    return "" + loc.getLatitude();
            }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "0";
}
  // Setter
public void setLongitude(String longitude) {
    this.longitude = longitude;
}
// Getter
public String getLongitude() {
    try {
        if (longitude != null) {
            return longitude;
        }
        if(mlocManager==null)
        {
            mlocManager = (LocationManager) getSystemService(Activity.LOCATION_SERVICE);
        }
        Location loc = mlocManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
        if (loc == null) {
            loc = mlocManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            if (loc == null) {
                loc = mlocManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
            }
            if (loc != null) {
                return "" + loc.getLongitude();
            }
            } else {
                return "" + loc.getLongitude();
            }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "0";
}