How to make a label (javafx) to display the current time dynamically?

Hi all

How to make a label (javafx) to display the current time dynamically?

I have not found a Type of event related to the time in javafx API.

Please give me some suggestions. Thank you!

Sage

There are lots of examples of JavaFX clocks available, for example https://gist.github.com/jewelsea/3388637 or http://blog.crisp.se/2012/08/09/perlundholm/an-analog-clock-in-javafx

For a simple label displaying the time, the simplest thing is to create a Timeline with duration 1 second and the number of indefinite cycle, which triggers an event handler that updates the label:

final Label clock = new Label();
final DateFormat format = DateFormat.getInstance();
final Timeline timeline = new Timeline(new KeyFrame(Duration.seconds(1), new EventHandler() {
     @Override
     public void handle(ActionEvent event) {
          final Calendar cal = Calendar.getInstance();
          clock.setText(format.format(cal.getTime());
     }
});
timeline.setCycleCount(Animation.INDEFINITE);
timeline.play();

(If you use Java 8, use the new time API, which is much more pleasant than calendar.)

Tags: Java

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