CALayer延伸链接

*calayer  http://thenewself.blog.163.com/blog/static/1985013302012120112020398/

什么是CALayer     http://blog.sina.com.cn/s/blog_6cecd4430100zxsn.html 

定制按钮及CALayer    http://www.2cto.com/kf/201112/112730.html

CALayer和VIew    http://3426724.blog.51cto.com/3416724/696565

CALayer  http://hi.baidu.com/cwt0408/blog/item/71a2413d4f54d7d09e3d623a.html

ios实现CALayer层的动画点击  http://wangjun.easymorse.com/?p=1267

多个CALayer的联动  http://marshal.easymorse.com/archives/4021