如何在JFrame中居中对齐标题?

本文介绍了如何在JFrame中居中对齐标题?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个带有标题的 JFrame .我希望标题居中对齐，以便它出现在JFrame标题的中间.

I have a JFrame with a Title. I want center align the title, so that it appears in the middle of the JFrame's title.

谢谢.

推荐答案

考虑将标题左对齐...但是...这将使您靠近中心.对于可调整大小的框架，您需要在调整大小时重写标题.

Consider leaving the title left-justified...but...this will get you near the center. For resizable frames, you need to rewrite the title on resize.

JFrame t = new JFrame(); t.setSize(600,300); t.setFont(new Font("System", Font.PLAIN, 14)); Font f = t.getFont(); FontMetrics fm = t.getFontMetrics(f); int x = fm.stringWidth("Hello Center"); int y = fm.stringWidth(" "); int z = t.getWidth()/2 - (x/2); int w = z/y; String pad =""; //for (int i=0; i!=w; i++) pad +=" "; pad = String.format("%"+w+"s", pad); t.setTitle(pad+"Hello Center");