This post is in addition to:
http://groups.google.com/group/android-developers/browse_thread/thread/1459f065d3af1a5e
I have exactly the same problem and Doug pinpointed what's probably
the issue in my case exactly:
So here's the deal: I have a Vector containing traffic messages
(received from a server via UDP in an own thread). Each time a message
is received, I create a new overlay object and populate it with the
traffic messages:
public void receiveMessage(BinaryMessage binaryMsg) {
....
TrafficMessage message = createMessage(binaryMsg);
// adds message to vector
addTrafficMessage(message,
CoCarMapView.trafficMessages);
CoCarMapView.showTrafficMessages();
....
}
public static void showTrafficMessages() {
List<Overlay> overlays = mapView.getOverlays();
if (overlays.size() > 1) {
overlays.remove(1);
}
Drawable warningIcon = context.getResources().getDrawable
(R.drawable.sign_warning_small);
CoCarItemizedOverlay trafficEventsOverlay = new
CoCarItemizedOverlay
(warningIcon);
// the overlay is populated here
trafficEventsOverlay.updateOverlay(trafficMessages);
mapView.getOverlays().add(trafficEventsOverlay);
mapView.postInvalidate();
}
public void updateOverlay(Vector<TrafficMessage> messages) {
for(int i=0; i < messages.size(); i++) {
TrafficMessage message = messages.elementAt(i);
Drawable messageIcon = getMessageIcon(message);
GeoPoint point = getGeoPoint(message);
OverlayItem messageItem = createItem(messageIcon,
point);
this.addItem(messageItem);
}
}
I don't understand yet exactly where the error is caused, that is
where to start improving stuff...
Thanks for your advice,
Lex
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