final UIProgressBar bar = new UIProgressBar("Loading: ", true);
bar.setPercentFilled(0);
bar.setLocalComponentWidth(250);
bar.setMaximumContentWidth(bar.getContentWidth());
bar.addController(new SpatialController<UIProgressBar>() {
@Override
public void update(final double time, final UIProgressBar caller) {
//caller.setPercentFilled(_timer.getTimeInSeconds() / 15);
}
});