如何用java制作一个“不要再问我”的对话框弹出框？

Question

在我的程序的一部分中，我使用 JOptionPane 询问用户是否确定他将要做什么。但是我不想让用户每次都这么问，所以我喜欢使用android中一些对话框的功能，但不知道如何实现。在我的程序中，这里有人可以帮助我吗？（应该有西班牙语 Whosebug）这是我的代码

if (jCheckBox2.isSelected() && jCheckBox1.isSelected()){
        JOptionPane.showConfirmDialog(null, "This action can cause problems, want to do it?");
        //here must be something to never ask again this 

    }

Answer 1

JOptionPane 也允许显示 Component 作为消息。所以这个问题可以这样解决：

JPanel msgPanel = new JPanel();

JLabel msg = new JLabel("some message");
msgPanel.add(msg);

JCheckBox jcb = new JCheckBox("do not ask me again");
msgPanel.add(jcb);

JOptionPane.showConfirmDialog(null , msgPanel , "some title" , JOptionPane.OK_CANCEL_OPTION);

Answer 2

基本思想是利用 message 参数实际上可以是 Component 这一事实。然后问题归结为检查用户是否 select 编辑了 "Don't ask me again" 选项，存储并重新使用它

类似...

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.util.Properties;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

public class DontAskMeAgainPanel extends JPanel {

    private JCheckBox dontAskMeAgain;

    public DontAskMeAgainPanel(Object message) {
        setLayout(new BorderLayout());
        if (message instanceof Component) {
            add((Component) message);
        } else if (message != null) {
            add(new JLabel(message.toString()));
        }
        dontAskMeAgain = new JCheckBox("Don't ask me again");
        JPanel panel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
        panel.add(dontAskMeAgain);
        add(panel, BorderLayout.SOUTH);
    }

    public boolean dontAskMeAgain() {
        return dontAskMeAgain.isSelected();
    }

    private static Properties settings;

    protected static void loadProperties() {
        if (settings != null) {
            settings = new Properties();
            File source = new File("...");
            if (source.exists()) {
                try (Reader r = new FileReader(source)) {
                    settings.load(r);
                } catch (IOException exp) {
                    exp.printStackTrace();
                }
            }
        }
    }

    protected static void saveProperties() {
        if (settings != null) {
            settings = new Properties();
            File source = new File("...");
            try (Writer w = new FileWriter(source)) {
                settings.store(w, "Don't prompt for settings");
            } catch (IOException exp) {
                exp.printStackTrace();
            }
        }
    }

    public static int showConfirmDialog(Component parent, Object message, String key) {

        loadProperties();

        int result = JOptionPane.NO_OPTION;

        if (settings.containsKey(key + ".prompt") && !Boolean.parseBoolean(settings.getProperty(key + ".value"))) {
            result = Integer.parseInt(settings.getProperty(key + ".value"));
        } else {
            DontAskMeAgainPanel panel = new DontAskMeAgainPanel(message);
            result = JOptionPane.showConfirmDialog(parent, panel);
            if (panel.dontAskMeAgain()) {
                settings.put(key + ".prompt", "false");
                settings.put(key + ".value", Integer.toString(result));

                saveProperties();
            }
        }
        return result;
    }

}

作为基本起点。为简单起见，我使用 Properties 作为后备存储，您可以使用数据库或其他持久方法（Preferences、XML 等）

然后你可以像这样使用它...

int result = DontAskMeAgainPanel.showConfirmDialog(null, "This is annoying", "Annoying");
System.out.println("You selected " + result);
result = DontAskMeAgainPanel.showConfirmDialog(null, "This is annoying", "Annoying");
System.out.println("Then you selected " + result);

如果您在第一次提示时 select "Don't ask me again"，则第二次调用将 return 之前 select 编辑的值

现在，在某个地方，您可能希望能够扭转这些决定；)

Answer 3

使用这里的一些答案，我已经设法解决了我的问题，我会在这里分享它以防其他人可能感兴趣：

我有一个复选框仅在当前会话期间有效以重置聊天 window，该复选框在我的应用程序的 "options" 部分可用，单击重置按钮时还会出现另一个复选框。

按钮的 ActionListener 代码如下，包含必要的注释：

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

jButtonReset.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                //this checkbox is the one available in app settings
                if (!surpassResetConfirmCheckBox.isSelected()) {
                    JPanel msgPanel = new JPanel();

                    // message inside confirmation dialog
                    JLabel msg = new JLabel("Are you sure you wish to clear current conversation?");
                    msgPanel.add(msg);

                    JCheckBox jcb = new JCheckBox("do not ask me again.");
                    jcb.addActionListener(new ActionListener() {

                        @Override
                        public void actionPerformed(ActionEvent arg0) {
                            // if-else statement below is used to update checkbox in settings whenever this one is changed.
                            if (jcb.isSelected()) {
                                surpassResetConfirmCheckBox.setSelected(true);
                            } else {
                                surpassResetConfirmCheckBox.setSelected(false);
                            }

                        }
                    });
                    msgPanel.add(jcb);

                    // JOptionPane returns an integer value ,we'll use it later
                    int result = JOptionPane.showConfirmDialog(null, msgPanel, "Reset Conversation",
                            JOptionPane.OK_CANCEL_OPTION);

                    // check user's response..
                    if (result == JOptionPane.OK_OPTION) {
                        // if user clicked Ok , call your method here
                        // reset();
                    } else if (result == JOptionPane.CANCEL_OPTION || result == JOptionPane.CLOSED_OPTION) {
                        // if user closed the dialog or clicked cancel, uncheck the checkbox in settings 
                        surpassResetConfirmCheckBox.setSelected(false);
                    }
                } else {
                    // if checkbox in settings is checked, call your method immediately 
                    // reset();
                }
            }
        });
    }

如何用java制作一个“不要再问我”的对话框弹出框？

How to make a “do not ask me again” dialog pop-up box with java?

java

swing

joptionpane