java - 如何在 GUI 中出现另一个 JOptionPane 时关闭一个 JOptionPane

Question

正如你从我上面的主题中看到的，
我想知道我怎么能解雇一个 JOptionPane 因为另一个 JOptionPane 而变得无关紧要，因为用户出于某种原因没有通过自己点击确定按钮(例如)解雇第一个。

我在其他站点看到过一些类似的问题，人们建议简单地做:

JOptionPane.getRootFrame().dispose();  

但是我怎样才能为我拥有的每个 JOptionPane 存储一个引用，并且能够只关闭想要的那个。
谢谢

编辑:
代码示例:

package Gui;

import javax.swing.JOptionPane;
import java.awt.*;

/**
 *
 * @author 
 */
public class JpanelMainView extends javax.swing.JPanel {

    /** Creates new form JpanelMainView */
    public JpanelMainView() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jButton1 = new javax.swing.JButton();

        jButton1.setText("jButton1");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(149, 149, 149)
                .addComponent(jButton1)
                .addContainerGap(178, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(77, 77, 77)
                .addComponent(jButton1)
                .addContainerGap(200, Short.MAX_VALUE))
        );
    }// </editor-fold>                        

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)                                         
    {                                             
       JOptionPane.showMessageDialog(this, "Board was sent for validation check\n Please wait...","Board Sent",JOptionPane.INFORMATION_MESSAGE);

       //Please note that this OptionPane is coming in my real program always after the first JoptionPane
       //I want that if I've reached the line in the code that need to show this second JoptionPane, I will first close the first JoptionPane
       //Else you will dismiss the last JoptionPane and then the first one and I don't want to give the user two JoptionPane to close, it's annoying.
       JOptionPane.showMessageDialog(this, "Set your move now please","Game started",JOptionPane.INFORMATION_MESSAGE);
    }                                        

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    // End of variables declaration                   

}

Answer 1

我会推荐你​​

• 用你的 JOptionPane 创建一个 JDialog(JOptionPane API 会告诉你怎么做)，
• 然后将 SwingWorker 用于您希望执行的任何后台任务，这些任务应该在 Swing 主线程 EDT 之外完成，
• 然后在后台任务完成时调用的 SwingWorker 的 done() 方法中，处理 JDialog。
• 然后将立即调用下一个 JOptionPane。

例如，以下代码使用 Thread.sleep(3000) 进行 3 秒 sleep 来模拟需要 3 秒的后台任务。然后它将关闭第一个对话框并显示第二个:

   private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
      JOptionPane messagePane = new JOptionPane(
            "Board was sent for validation check\n Please wait...",
            JOptionPane.INFORMATION_MESSAGE);
      final JDialog dialog = messagePane.createDialog(this, "Board Sent");

      new SwingWorker<Void, Void>() {

         @Override
         protected Void doInBackground() throws Exception {
            // do your background processing here
            // for instance validate your board here

            // mimics a background process that takes 3 seconds
            // you would of course delete this in your actual progam
            Thread.sleep(3000); 

            return null;
         }

         // this is called when background thread above has completed.
         protected void done() {
            dialog.dispose();
         };
      }.execute();

      dialog.setVisible(true);

      JOptionPane.showMessageDialog(this, "Set your move now please",
            "Game started", JOptionPane.INFORMATION_MESSAGE);
   }