iOS 设置控件圆角及边框

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: