在Eclipse中，如何在过滤器上的键输入结束时刷新视图？

Question

I have a view with a table and a search box above the table. I'm currently refreshing the view everytime a key is released. This causes some lag.

Code:

searchText.addKeyListener(new KeyAdapter() {
        @Override
        public void keyReleased(final KeyEvent ke) {
            filter.setSearchText(searchText.getText());
            viewer.refresh();
        }
        });

How can I refresh the view only when the user stops writting ?

Answer 1

You can achieve this using a threshold and Timer :

final Timer timer = new Timer(threshold, new ActionListener() {
  @Override
  public void actionPerformed(ActionEvent e) {
    filter.setSearchText(searchText.getText());
    viewer.refresh();
  }
});
timer.setRepeat(false);
searchText.addKeyListener(new KeyAdapter() {
    @Override
    public void keyReleased(final KeyEvent ke) {
        timer.restart();
    }
});