1. 设置圆角:
self.view.layer.masksToBounds = YES; self.view.layer.cornerRadius = 10.0f;
2. 添加边框:
self.layer.borderWidth = 5.0f; self.layer.borderColor = [[UIColor colorWithRed:164.0/255 green:142.0/255 blue:247.0/255 alpha:1.0] CGColor];
示例:
原文：http://www.cnblogs.com/happyplane/p/4737995.html