显示“JOptionPane.showMessageDialog”不停止执行流程 [英] Showing "JOptionPane.showMessageDialog" without stopping flow of execution

问题描述

我目前正在开展一个比我原先想象的更复杂的项目。我现在的目标是显示一个消息对话框，而不会停止程序中主线程的执行。现在，我正在使用：

I'm currently working on a project that's getting more complex than I thought it would be originally. What I'm aiming to do right now is show a message dialog without halting the execution of the main thread in the program. Right now, I'm using:

JOptionPane.showMessageDialog(null, message, "Received Message", JOptionPane.INFORMATION_MESSAGE);

但这会暂停主线程中的其他所有内容，因此它不会一次显示多个对话框，就在另一个之后。这个m =可以像创建一个新的JFrame一样简单而不是使用JOptionPane吗？

But this pauses everything else in the main thread so it won't show multiple dialogs at a time, just on after the other. Could this m=be as simple as creating a new JFrame instead of using the JOptionPane?

推荐答案

根据 docs ：

JOptionPane创建模态的JDialog。要创建非模态对话框，必须直接使用JDialog类。

JOptionPane creates JDialogs that are modal. To create a non-modal Dialog, you must use the JDialog class directly.

上面的链接显示了一些创建对话框的例子。

The link above shows some examples of creating dialog boxes.

另一个选择是在自己的线程中启动JOptionPane，如下所示：

One other option is to start the JOptionPane in its own thread something like this:

  Thread t = new Thread(new Runnable(){
        public void run(){
            JOptionPane.showMessageDialog(null, "Hello");
        }
    });
  t.start();

这样，即使模态对话框已启动，程序的主线程也会继续。

That way the main thread of your program continues even though the modal dialog is up.

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