相关的代码:
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
方法正下方的嵌套类:
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) {}
}
}
}
当JProgressBar达到100%时,我希望JDialog不可见。目前,当JProgressBar达到100%时,JDialog不会关闭。实际上,我想在actionPerformed
中的注释代码片段在JProgressBar达到100%之后执行。
我在task.join();
之后尝试了task.start();
,但这会产生负面结果。当我这样做时,显示了JDialog的边框,然后片刻之后,对话框关闭。我从来没有在JDialog中看到任何东西。
请注意,我是SwingUtilities
的新手。
如何使程序完成我期望的工作?
答案 0 :(得分:2)
怎么样:
public void run() {
if(j == 100)
dialog.dispose();
else
progress.setValue(j);
}