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我用Java做了一个小数字猜谜游戏。我的主 JFrame(主菜单)有三个 JButton,播放、声音和退出。

按下播放按钮开始我的游戏,一系列 JOptionPanes 出现要求用户输入数字。它工作正常,游戏运行正常。但是当我按播放按钮玩游戏时,我无法按退出或声音按钮或游戏中的任何其他按钮。我什至不能按下主 JFrame 窗口的 X(关闭)按钮,直到我完全玩游戏,或者关闭 JOptionPane 从而关闭当前游戏。

当我已经按下声音按钮开始背景声音时,我可以按下退出按钮。当我已经按下声音按钮时,我可以按下播放按钮。

有什么建议么?

我的问题是,假设我正在使用 JOptionPane 制作一个小游戏,当 JOptionPane 已经打开时,如何按下我的主 JFrame(主菜单)上存在的 JButton

这是我的SSCCE

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

class Test2 {
    static JFrame frame;
    static JPanel jp;

    static JButton b1;
    static JButton b2;
    static JButton b3;

    public static void main(String[] args)  {
        final long startTime = System.currentTimeMillis();
        frame=new JFrame("Game ");
        jp=new JPanel();
        b1=new JButton("Play");
        b1.addActionListener (new Action());
        b2=new JButton("Exit");
        b2.addActionListener (new Action1());
        b3=new JButton("Sound");
        b3.addActionListener (new Action2());

        jp.add(b1);
        jp.add(b2);
        jp.add(b3);

        frame.add(jp);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300,400);
        frame.setVisible(true);
    }

    static class Action implements ActionListener { // For (game) Play button
        public void actionPerformed (ActionEvent e) {
            Thread  bb=new Thread(new Runnable(){
                public void run(){
                    new Test2().start();
                }});
            bb.setPriority(1);
            bb.start();
        }
    }

    static class Action1 implements ActionListener { // For Exit button
        public void actionPerformed (ActionEvent e) {

            Thread  tt=new Thread( new Runnable(){
                public void run(){
                    int response = JOptionPane.showConfirmDialog(
                            null,
                            "Exit application?",
                            "Confirm",
                            JOptionPane.YES_NO_OPTION,
                            JOptionPane.QUESTION_MESSAGE);
                    if (response == JOptionPane.NO_OPTION) {

                    }
                    else if (response == JOptionPane.YES_OPTION) {
                        System.exit(0);
                    }
                }
            });
            tt.setPriority(10);
            tt.start();
        }
    }

    static class Action2 implements ActionListener { //For Sound Button
        public void actionPerformed (ActionEvent e)  {

            try {
                /* Code to play sound */
            }
            catch(Exception ex) {
                ex.printStackTrace();
            }
        }
    }

    void start() { //   sample  game
        JOptionPane.showMessageDialog(null,"Step 1  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 2  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 3  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 4  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 5  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 6  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 7  ..click OK  to continue");
        JOptionPane.showMessageDialog(null,"Step 8  ..click OK  to continue");
    }
}

在我的新代码中,只有 start() 方法发生了变化

void start()                          //   sample  game
{

JOptionPane pane = new JOptionPane();
 // Configure via set methods
dialog = pane.createDialog(null,"exp 1");
 // the line below is added to the example from the docs

dialog.setSize(300, 200);

 dialog.setModal(false); // this says not to block background components

JButton nextButton = new JButton("Go to Dialog2");


dialog.add(nextButton);
nextButton.setBounds(25,25,20,20);


 dialog.show();

JOptionPane pane2 = new JOptionPane();
 // Configure via set methods
 dialog2 = pane2.createDialog(null,"exp 2");
 // the line below is added to the example from the docs
 dialog2.setModal(false); // this says not to block background components
// dialog2.show();






nextButton.addActionListener(new ActionListener() {
 public void actionPerformed(ActionEvent arg0) {

dialog2.setVisible(true);
dialog.setVisible(false);

 }
});





}
4

1 回答 1

4

不幸的是,JOptionPane 是一个模态对象,在通过所有对话框之前不能离开它们。从文档中,所有对话框都是模态的。每个 showXxxDialog 方法都会阻塞当前线程,直到用户交互完成。

您可以通过创建非模态对话框来解决您的问题。 创建非模态对话框的示例

取而代之的是,JDialog类似于JFrame,你可以在里面添加 Button,事件监听器。 一个简单的例子

您可以为自己创建一个自定义JDialog类:)

一个定制的例子JDialog

我编辑了你的代码,就像:

void start() { // sample game
    MyDialog dialog7 = new MyDialog(null);
    MyDialog dialog6 = new MyDialog(dialog7);
    MyDialog dialog5 = new MyDialog(dialog6);
    MyDialog dialog4 = new MyDialog(dialog5);
    MyDialog dialog3 = new MyDialog(dialog4);
    MyDialog dialog2 = new MyDialog(dialog3);
    MyDialog dialog1 = new MyDialog(dialog2);

    dialog1.setVisible(true);
}
于 2012-10-14T16:22:41.493 回答