JOptionPane.createDialog和OK_CANCEL_OPTION

Question

我有一个自定义对话框,从用户收集两个字符串.我在创建对话框时使用OK_CANCEL_OPTION作为选项类型.Evertyhings有效,除非用户单击取消或关闭对话框时单击确定按钮具有相同的效果.

我该如何处理取消和关闭事件？

继承我正在谈论的代码:

JTextField topicTitle = new JTextField();
JTextField topicDesc = new JTextField();
Object[] message = {"Title: ", topicTitle, "Description: ", topicDesc};

JOptionPane pane = new JOptionPane(message,  JOptionPane.PLAIN_MESSAGE, JOptionPane.OK_CANCEL_OPTION);
JDialog getTopicDialog =  pane.createDialog(null, "New Topic");
getTopicDialog.setVisible(true);

// Do something here when OK is pressed but just dispose when cancel is pressed.

Answer 1

我认为对您来说更好的选择是使用以下代码

    JTextField topicTitle = new JTextField();
    JTextField topicDesc = new JTextField();
    Object[] message = {"Title: ", topicTitle, "Description: ", topicDesc};


    Object[] options = { "Yes", "No" };
    int n = JOptionPane.showOptionDialog(new JFrame(),
            message, "",
            JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null,
            options, options[1]);
    if(n == JOptionPane.OK_OPTION){ // Afirmative
        //.... 
    }
    if(n == JOptionPane.NO_OPTION){ // negative
        //....
    }
    if(n == JOptionPane.CLOSED_OPTION){ // closed the dialog
        //....
    }

通过使用 showOptionDialog 方法，您将根据用户的行为获得结果，因此除了解释该结果外，您无需执行任何其他操作