import org.osmdroid.bonuspack.overlays.MapEventsOverlay; //导入依赖的package包/类
/**
 * Sets up the map view, gets the current location and initiates a new
 * marker object from it, if valid. Then plots it on the map.
 * 
 * @param mapEventsReceiver
 *            The MapEventsReceiver for handling click events on the map.
 */
private void setupMap(MapEventsReceiver mapEventsReceiver) {
	mapData = new MapDataHelper((MapView) getActivity().findViewById(
			R.id.map_view));
	mapData.setUpMap();

	mapEventsOverlay = new MapEventsOverlay(getActivity(),
			mapEventsReceiver);
	mapData.addToOverlays(mapEventsOverlay);

	GeoLocation currentLocation = new GeoLocation(locationListenerService);

	markers = new ArrayList<Marker>();

	// if valid current location, put it on the map
	if (currentLocation.getLocation() != null) {
		Drawable icon = getResources().getDrawable(
				R.drawable.current_location_pin);
		currentLocationMarker = new CustomMarker(currentLocation,
				mapData.getMap(), icon);

		currentLocationMarker.setUpInfoWindow("Current Location",
				getActivity());

		markers.add(currentLocationMarker);

		setMarkerListeners(currentLocationMarker);

		mapData.addMarkerToOverlayAndCenter(currentLocationMarker, 13);

	} else {
		ErrorDialog.show(getActivity(),
				"Could not retrieve current location");
		mapData.getController().setZoom(3);
	}
}