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POLocationListener InSide AsyncTask
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copied!<p>Hi I am New to android programming and currently developing an application that uses location manager to get user location and place a marker on a map. i am attempting to use AsyncTask to run the LocationListener and Constantly update the marker when the user location has changed. this is the class i am working on...</p> <pre><code>public class IncidentActivity extends MapActivity{ public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); this.setContentView(R.layout.incidentactivity); mapView = (MapView)findViewById(R.id.mapView); mapView.setBuiltInZoomControls(true); mapView.setTraffic(true); mapController = mapView.getController(); String coordinates[] = {"-26.167004","27.965505"}; double lat = Double.parseDouble(coordinates[0]); double lng = Double.parseDouble(coordinates[1]); geoPoint = new GeoPoint((int)(lat*1E6), (int)(lng*1E6)); mapController.animateTo(geoPoint); mapController.setZoom(16); mapView.invalidate(); new MyLocationAsyncTask().execute(); } private class MyLocationAsyncTask extends AsyncTask<Void, Location, Void> implements LocationListener{ private double latLocation; private Location l; //location management variables to track and maintain user location protected LocationManager locationManager; protected LocationListener locationListener; @Override protected Void doInBackground(Void... arg0) { Looper.prepare(); locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE); locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 1, locationListener); this.publishProgress(l); return null; } @Override protected void onPostExecute(Void result) { super.onPostExecute(result); } @Override protected void onProgressUpdate(Location... values) { super.onProgressUpdate(values); } //this method is never executed i dont know why...? public void onLocationChanged(Location location) { if (location != null){ latLocation = location.getLatitude(); Toast.makeText(getBaseContext(), " Your latLocation :" + latLocation, Toast.LENGTH_LONG).show(); //Log.d("Your Location", ""+latLocation); } } public void onProviderDisabled(String provider) { } public void onProviderEnabled(String provider) { // TODO Auto-generated method stub } public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub } } } </code></pre>

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