XDEVTextField 的值未实时更新

Question

我有一个需要每秒实时更新的 XDEVTextField。我尝试了 this question, including using Executor and Swing Timer. I also tried this way.
中提出的答案下面是我的代码：

public class FirstView extends XdevView implements Runnable {
    Thread t = null;
    String timeString = "";

    public FirstView() {
        super();
        this.initUI();
        this.t = new Thread(this);
        this.t.start();
    }

    @Override
        public void run() {
            // TODO Auto-generated method stub
            try {
                 while (true) {
                    final Calendar cal = Calendar.getInstance();
                    final SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
                    final Date date = cal.getTime();
                    this.timeString = formatter.format(date);
                    System.out.println(this.timeString);
                    this.txtTime.setValue(this.timeString);
                    Thread.sleep(500); <-- this should be changed to 1000 but I forgot to
                 } 
              }
              catch (final Exception e) {
                  e.printStackTrace();
              }
        }

问题是 txtTime 的值根本没有连续更新，该值仅在线程启动时设置一次

while the System.out.println(dateandtime.format(date)); can still print out the real time to the console, like this:

我正在使用 Rapidclipse 3.1.1。我在 Netbeans 上使用 Java Swing 的 JLabel 制作了一个类似的数字时钟。我不知道这里可能是什么问题。我怀疑并检查了 txtTime 元素的所有属性，但似乎没有任何原因。任何建议或解决方案将不胜感激。

Answer 1

您只能使用 access() 方法访问 UI，该方法会锁定会话以防止冲突。

@Override
    public void run() {
        try {
            while (true) {
                this.time = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss").format(new Date());
                System.out.println(this.time);
                UI.getCurrent().access(()->this.button.setCaption(this.time));
                this.t.sleep(1000);
                
            }
        } catch (final InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

XDEVTextField 的值未实时更新

XDEVTextField's value isn't updated to real time

java

date

time

timer

rapidclipse