更新JProgressBar

Question

我无法更新我的进度条...这是我的代码

Thread t=new Thread(new Runnable(){
        public void run(){
            int i=1;
            jProgBar.setMinimum(0);
            jProgBar.setMaximum(100);
            try {
                while(i<=100 || true){
                    jProgBar.setValue(i);
                    i++;
                    Thread.sleep(50);
                }
            }
            catch (InterruptedException ex){
                jProgBar.setValue(jProgBar.getMaximum());
            }
        }
    });
    t.start();

    .... Something code that correctly works

    t.interrupt();

进度条状态仅在线程结束时更新。有人能帮我吗？?

Answer 1

谢谢大家。我就是这样解决的

try{
       jProgBar.setIndeterminate(true);
       jProgBar.setStringPainted(true);
       jProgBar.setBorderPainted(true);
       new Thread(new Runnable() {
           public void run() {
               ...
               // here is code that i've to wait
               // after this i stop my jProgressBar
               ...
               jProgBar.setStringPainted(false);
               jProgBar.setBorderPainted(true);
               jProgBar.setIndeterminate(false);
       }
       }).start();
   }
   catch(IllegalStateException ex){
       //some code
   }

Answer 2

在休眠之前，添加一个对SwingUtilties.invokeLater()的调用，该调用产生一个线程，以在EDT中的进度栏上触发一个firePropertyChange。

Answer 3

直接使用模型而不是JProgressBar：

DefaultBoundedRangeModel model = new DefaultBoundedRangeModel();
JProgressBar bar = new JProgressBar(model);

// Somewhere else, perhaps in another Thread
model.setValue(i)

下面的示例运行良好：

public static void main(String[] args) throws InterruptedException {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 100);
    frame.setVisible(true);
    final DefaultBoundedRangeModel model = new DefaultBoundedRangeModel();
    frame.add(new JProgressBar(model));
    Thread t = new Thread(new Runnable() {
        public void run() {
            int i = 1;
            model.setMinimum(0);
            model.setMaximum(100);
            try {
                while (i <= 100 || true) {
                    model.setValue(i);
                    i++;
                    Thread.sleep(50);
                }
            } catch (InterruptedException ex) {
                model.setValue(model.getMaximum());
            }
        }
    });
    t.start();

    Thread.sleep(2000);

    t.interrupt();
}