如何在Core Graphics / Quartz 2D中绘制圆角矩形？ [英] How to draw a rounded rectangle in Core Graphics / Quartz 2D?

问题描述

我需要为圆角矩形绘制轮廓。我知道我可以制作直线和圆弧，但也许还有一个圆形反射函数？

I need to draw an outline for a rounded rectangle. I know I can make lines and arcs, but maybe there is also a function for rounded rects?

推荐答案

而不是制作自己的路径和弧线之外的路径，你可以使用

Instead of making your own path out of lines and arcs, you can use

[UIBezierPath bezierPathWithRoundedRect:cornerRadius:]

或

[UIBezierPath bezierPathWithRoundedRect:byRoundingCorners:cornerRadii:]

（第二个允许你指定哪些角被舍入）

(the second one lets you specify which corners are rounded)

适用于iOS 3.2或更高版本。

Available in iOS 3.2 or later.

这篇关于如何在Core Graphics / Quartz 2D中绘制圆角矩形？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！