在UIImage iOS 6.0的所有四个面上添加阴影 [英] Adding shadow on all four sides of an UIImage iOS 6.0

问题描述

我正在尝试为imageView的所有四个边添加阴影。我明白了：
self.shadowView.layer.shadowOffset = CGSizeMake（10,20）;给双方留下一个阴影。
如何在四边都设置阴影？

I am trying to add a shadow to all four sides of a imageView. I see that: self.shadowView.layer.shadowOffset = CGSizeMake(10, 20); put a shadow on two sides. How do I put a shadow on all four sides?

推荐答案

设置 shadowOffset 到（0,0）或接近的东西。如果您希望阴影更大，请调整 shadowRadius 。默认值为3，但您可能需要增加它。您还可以使用 shadowOpacity 来确定阴影的可见性。

Just set shadowOffset to (0,0) or something close. Adjust shadowRadius if you want the shadow to be bigger. The default is 3 but you may have to increase it. You also may want to play with shadowOpacity to determine the visibility of the shadow.

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