如何在Java中居中drawString？ [英] How to center a drawString in Java?

问题描述

如何将Java中drawString的文本居中？我希望它能够动态地沿屏幕居中，无论是否改变框的高度和宽度。我发现此代码，但我不知道如何使用它。有人可以解释吗？

How can I center the text of a drawString in Java? I want it to that it can be centered along the screen dynamically, whether I change the height and width of the box or not. I found this codebut I don't know how to use it. can someone explain?

推荐答案

横向...

Horizontally...

String text = "...";
Graphics2D g2d = (Graphics2D)g.create();
FontMetrics fm = g2d.getFontMetrics();
int x = (getWidth() - fm.stringWidth(text)) / 2;

垂直...

Vertically...

String text = "...";
Graphics2D g2d = (Graphics2D)g.create();
FontMetrics fm = g2d.getFontMetrics();
int y = ((getHeight() - fm.getHeight()) / 2) + fm.getAscent();

还演示了在这里

另请参阅 2D图形和使用文本API

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