protected void initMap(int mapViewId, Bundle state) {
mMapView = (MapView) findViewById(mapViewId);
MapView map = mMapView;
map.setFocusableInTouchMode(true);
map.setClickable(true);
map.setBuiltInZoomControls(true);
map.getOverlays().clear();
map.getOverlays().add(new MyLocationOverlay(this, map));
if (state != null) {
onRestoreInstanceState(state);
}
}