Hi everyone,
I want to override the method enableMyLocation() in MyLocationOverlay
class, in order to implement my own positioning algorithm to get
latitude/longitude, and then plot them onto a MapView.
I figured out how to do that, but now I'm stuck because I dont know
what Canvas to pass when I call the method drawMyLocation().
Here is the MyLocationOverlay class:
public class LocationOverlay extends MyLocationOverlay implements
LocationListener,GpsStatus.Listener{
Bitmap circleIcon;
private MapView mapView;
private OutdoorMap outdoorMap;
private Context context;
private LocationManager locationManager;
public LocationOverlay(Context context, MapView mapView) {
super(context, mapView);
this.mapView = mapView;
this.context = context;
circleIcon =
BitmapFactory.decodeResource(context.getResources(),R.drawable.circle);
}
@Override
public boolean enableMyLocation() {
locationManager = (LocationManager)
context.getSystemService(Context.LOCATION_SERVICE);
start();
return true;
}
@Override
public void onLocationChanged(Location loc) {
// Here want to call drawMyLocation but I dont know
what Canvas to pass to it
this.drawMyLocation(canvas, mapView, loc, new GeoPoint((int)
(loc.getLatitude()*1000000)
,(int)(loc.getLongitude()*1000000)), loc.getTime());
}
public void start() {
// Register for location updates.
LocationProvider prov =
locationManager.getProvider(LocationManager.GPS_PROVIDER);
if (prov != null) {
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
0, 0, this);
locationManager.addGpsStatusListener((Listener) this);
Location prime =
locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
}
}
public void stop() {
LocationProvider prov =
locationManager.getProvider(LocationManager.GPS_PROVIDER);
if (prov != null)
locationManager.removeUpdates(this);
}
@Override
public void onGpsStatusChanged(int event) {
}
}
Thanks very much for your help.
Cheers
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