JOptionPane.showMessageDialog 查询？

Question

This is the Scenario.

I have Code which intiates a Alram when an error is encountered.

AudioAlarm t = new AudioAlarm(song);
    try {
        Thread.sleep(2000);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    System.out.println("Awake");
    t.start();
    setRunnung(true);
    JOptionPane.showMessageDialog(null, "Alarm ...", "Alarm", JOptionPane.OK_OPTION);
    AudioAlarm.setLoop(false);
    System.out.println("Alarm Acknowledged ...");

I would like to re-design this logic in this manner,

If the Alarm is unacknowledged by the user over a period of time say 2 min, it turn off and message msg dialog should disappear.

How can I Obtain this?

I am able to Stop the Alram, but unable to dispose the dialog without the user pressing "OK"

Answer 1

To do what you want, you should:

• Create a JOptionPane instance using one of its constructors
• Call createDialog on this option pane to get a dialog containing this option pane
• Use a javax.swing.Timer instance in order to fire an action event after 2 minutes
• add an action listener to this timer which would close the dialog containing the option pane
• show the dialog containing the option pane.

Answer 2

I do not know if what you are after can be done, but can't you instead replicate the JOptionPane as a JFrame and dispose of that one? You can find how to close a JFrame on this Previous SO Post:

If you want the GUI to behave as if you clicked the "X" then you need to dispatch a windowClosing Event to the Window. The "ExitAction" from Closing An Application allows you to add this functionality to a menu item or any component that uses Actions easily.