SimulationPresenter.java 文件源码

private void addScrollHandler() {
  if (scrollHandler != null) {
    scrollHandler.removeHandler();
  }
  scrollHandler = view.addScrollHandler(new ScrollHandler() {
    @Override
    public void onScroll(ScrollEvent event) {
      updateTimer.cancel();
      updateTimer.schedule(UPDATE_INTERVAL);
    }
  });
}