向JOptionPane添加额外的自定义按钮

Question

Set<ICarOption> optionSet = spec.getCarOptions(category);
// If the category is not mandatory, create a makeshift option object to skip.
if(!category.getMandatory())    optionSet.add(new CarOption("skip"));
ICarOption[] optionArray = optionSet.toArray(new ICarOption[optionSet.size()]);

ICarOption selectedOption = (ICarOption)JOptionPane.showInputDialog(
                frame,
                "Choose one of the following options for Category " + category + ".\n" + 
                "If skip is available, you may choose it to skip this category.",
                "Select a feature",
                JOptionPane.QUESTION_MESSAGE, 
                null, 
                optionArray, 
                optionArray[0]);

我在这里看到了一些例子：http://docs.oracle.com/javase/7/docs/api/javax/swing/joptionpane.html

它似乎表明我应该用一个自定义的按钮列表来替换我的组合框，这不是我想要的。我需要有3个按钮（好的，跳过，取消），以及项目列表。

更新：为了说明我的GUI应该是什么样子：

null

目前我的代码如下所示：

JPanel panel = new JPanel();

JComboBox<ICarOption> optionsBox = new JComboBox<ICarOption>();
panel.add(optionsBox);
for(ICarOption option : spec.getCarOptions(category)){
    optionsBox.addItem(option);
}

Object[] options = { "Select option", "Skip", "Cancel" };

int selected = JOptionPane.showOptionDialog(
                panel,
                "Choose one of the following options for Category " + category + ".\n" + 
                "If skip is available, you may choose it to skip this category.",
                "Select option",
                JOptionPane.YES_NO_CANCEL_OPTION, 
                JOptionPane.INFORMATION_MESSAGE, null, 
                options, 
                options[0]);

if(selected == JOptionPane.NO_OPTION)   continue;
if(selected == JOptionPane.CANCEL_OPTION)   throw new UnavailableException();
if(selected == JOptionPane.YES_OPTION){
    ...
}

灵感来自：Java：showInputDialog中的自定义按钮

这样做的问题是，我现在没有办法控制跳过按钮，因为它是在窗口创建的那一刻创建的。

        JPanel panel = new JPanel();

        JComboBox<ICarOption> optionsBox = new JComboBox<ICarOption>();
        panel.add(optionsBox);
        for(ICarOption option : spec.getCarOptions(category)){
            optionsBox.addItem(option);
        }

        int selected;
        if(!category.getMandatory()){
            Object[] options = { "Select option", "Cancel", "Skip" };

            selected = JOptionPane.showOptionDialog(
                    panel,
                    "Choose one of the following options for Category " + category + ".\n" + 
                    "If skip is available, you may choose it to skip this category.",
                    "Select option",
                    JOptionPane.YES_NO_CANCEL_OPTION, 
                    JOptionPane.INFORMATION_MESSAGE, null, 
                    options, 
                    options[0]);
        }
        else{
            Object[] options = { "Select option", "Cancel" };

            selected = JOptionPane.showOptionDialog(
                    panel,
                    "Choose one of the following options for Category " + category + ".\n" + 
                    "If skip is available, you may choose it to skip this category.",
                    "Select option",
                    JOptionPane.YES_NO_OPTION, 
                    JOptionPane.INFORMATION_MESSAGE, null, 
                    options, 
                    options[0]);
        }

        // careful! CANCEL_OPTION means skip has been pressed and NO_OPTION means cancel
        if(selected == JOptionPane.CANCEL_OPTION)   continue;
        if(selected == JOptionPane.NO_OPTION)   throw new UnavailableException();
        if(selected == JOptionPane.YES_OPTION){
            ...
        }

        ArrayList<Object> tempList = new ArrayList<Object>();
        int optionType;

        tempList.add("Select option");
        tempList.add("Cancel");
        if(!category.getMandatory()){
            tempList.add("Skip");
            optionType = JOptionPane.YES_NO_CANCEL_OPTION;
        }
        else    optionType = JOptionPane.YES_NO_OPTION;

        Object[] options = tempList.toArray(new Object[tempList.size()]);

        int selected = JOptionPane.showOptionDialog(
                panel,
                "Choose one of the following options for Category " + category + ".\n" + 
                        "If skip is available, you may choose it to skip this category.",
                        "Select option",
                        optionType, 
                        JOptionPane.INFORMATION_MESSAGE, null, 
                        options, 
                        options[0]);

Answer 1

您链接的文档非常直截了当：

选项：将出现在对话框底部的选项按钮集的更详细描述。options参数的通常值是字符串数组。但参数类型是对象数组

因此，您只需要定义一些您选择的JButtons，将它们封装在一个数组中（就像您的字符串数组一样），然后将它们传递到joptionPane.showOptionDialog-方法中。为了实现JButtons的交互性，您可以使用一些Mouseclick监听器，例如，将其灰化并使其不可单击（不同的事情！）您可以使用setEnabled（）更改JButton-properties；

    JButton jbt_ok = new JButton("OK");
    JButton jbt_skip = new JButton("Skip");
    JButton jbt_cancel = new JButton("Cancel");

    boolean greyOutSkipButton = true;

    jbt_ok.addMouseListener(new MouseAdapter() {

        @Override
        public void mouseClicked(MouseEvent e) {
            System.out.println("OK was clicked");

        }
    });

    jbt_cancel.addMouseListener(new MouseAdapter() {

        @Override
        public void mouseClicked(MouseEvent e) {
            System.out.println("Cancel was clicked");

        }
    });

    if(greyOutSkipButton)
        jbt_skip.setEnabled(false);
    else

        jbt_skip.addMouseListener(new MouseAdapter() {

            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("Skip was clicked");

            }
        });

    Object[] options = {jbt_ok, jbt_skip, jbt_cancel};

    JOptionPane.showOptionDialog(null, "Click OK to continue", "Warning",
            JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE,
            null, options, options[0]);