如何制作模态JFrame? [英] How to make a modal JFrame?

问题描述

可能重复:
如何在Swing Java中制作JFrame模式

Possible Duplicate:
How to make a JFrame Modal in Swing java

我有2个JFrame，一个是主JFrame，另一个是子JFrame，并且当我显示子JFrame时，我试图使用户交互无法访问主JFrame.

I have 2 JFrames one is the main JFrame and the other one is a sub JFrame, and I'm trying to make the main JFrame inaccessible to user interactions when I display the sub JFrame.

推荐答案

如何制作模态JFrame?

How to make a modal JFrame?

不要.使用模式JDialog-正是它们的用途.您当然知道JDialog可以容纳复杂的GUI，就像JFrame所容纳的GUI一样复杂.

Don't. Use a modal JDialog -- that's precisely what they're for. You understand of course that a JDialog can hold a complex GUI, as complex as any held by a JFrame.

我们经常碰到这样的人，他们使用诸如NetBeans这样的GUI生成器来帮助他们创建GUI，并且由于第二个窗口的代码是由该生成器创建的，以扩展JFrame，所以对于程序员来说很难返回并更改为对话框.解决此问题的方法是尝试使您的Swing代码创建更适合创建JPanels，而不是JFrames之类的顶级窗口.这样，您可以在需要的情况下在JFrame中使用创建的JPanel，在需要时在JDialog中使用，也可以在JApplet中使用JApplet，甚至可以使用其他JPanel，无论哪种情况最适合这种情况.这将极大地增加代码的灵活性.

We often run into posts like these by folks who use a GUI-builder such as NetBeans to help them create their GUI's, and since the second window's code was created by the builder to extend a JFrame, it's very hard for the programmer to go back and change it to a dialog. The way to fix this is to try to gear your Swing code creation towards creation of JPanels, not top-level windows such as JFrames. This way you could use the created JPanel in a JFrame if desired, a JDialog if desired, a JApplet, or even another JPanel, whatever works best for the situation. This will increase your code's flexibility tremendously.

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