如何“做某事"?在Swing组件上调整大小? [英] How to "do something" on Swing component resizing?

问题描述

我有一个扩展 JPanel 的类.我重写了受保护的void paintComponent(Graphics g).

I've a class which extends JPanel. I overwrote protected void paintComponent(Graphics g).

当面板尺寸改变时，必须重新计算一个变量.如何以适当的方式做到这一点?

There is a variable which has to be recalculated when the panel's dimensions change. How do I do that in a proper way?

推荐答案

如果我正确理解了这个问题，那么您应该阅读

If I understand the question correctly then you should read the section from the Swing tutorial on How to Write a Component Listener which shows you how to listen for a change in a components size.

这篇关于如何“做某事"?在Swing组件上调整大小?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！