当JProgressBar达到100％时，如何使JDialog不可见? [英] How to make the JDialog invisible when the JProgressBar reaches 100%?

问题描述

相关代码段:

JProgressBar progress;
JButton button;     
JDialog dialog;      //Fields of my GUI class

progress=new JProgressBar(JProgressBar.HORIZONTAL,0,100);
button=new JButton("Done");
dialog=new JDialog();             //Done from methods

progress.setValue(0);
progress.setStringPainted(true);
progress.setBorderPainted(true);  //Also done from methods

button.addActionListener(this);   //Also done from methods

dialog.setLayout(new FlowLayout(FlowLayout.CENTER));
dialog.setTitle("Please wait...");
dialog.setBounds(475,150,250,100);
dialog.setModal(true);            //Also done from methods

dialog.add(new JLabel("Loading..."));
dialog.add(progress);             //Also done from methods

这是actionPerformed方法:

public void actionPerformed(ActionEvent e)
{
    dialog.setVisible(true);
    Task task=new Task();
    task.start();


    //After the JProgressBar reaches 100%, do the following things:
    /*progress.setValue(progress.getMinimum());
    dialog.setVisible(false);*/
}

Task是actionPerformed方法下面的嵌套类:

Task is a nested class just below the actionPerformed method:

private class Task extends Thread {    
  public void run(){
     for(int i =0; i<= 100; i++){
        final int j = i;
        SwingUtilities.invokeLater(new Runnable() {
           public void run() {
              progress.setValue(j);
           }
        });
        try {
           Thread.sleep(10);
        } catch (InterruptedException e) {}
     }
  }
} 

我希望当JProgressBar达到100％时，JDialog不可见.当前，当JProgressBar达到100％时，JDialog不会关闭.其实，我想在JProgressBar达到100％之后执行actionPerformed中的注释代码.

I want the JDialog not to be visible when the JProgressBar in it reaches 100% . Currently, the JDialog does not close when the JProgressBar reaches 100%. Actually, I want to the commented piece of code in actionPerformed to be executed after the JProgressBar reaches 100%.

我刚在task.start();之后尝试了task.join();，但这给出了负面的结果.当我这样做时，将显示JDialog的边框，然后，对话框关闭.我从没在JDialog中看到任何东西.

I've tried task.join(); just after task.start();, but this gave a negative result. When I did this, the JDialog's border was displayed and then, after a moment, the dialog closes. I never see anything in the JDialog.

请注意，我是SwingUtilities的新手.

我如何使程序达到预期的效果?

How do I make the program do what I am expecting?

推荐答案

怎么样:

public void run() {
          if(j == 100)
              dialog.dispose();
          else
              progress.setValue(j);
       }

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