iwatch开发指南

https://stackoverflow.com/questions/11022964/cannot-find-interface-declaration-for-class

http://www.cocoachina.com/bbs/read.php?tid=299565

https://stackoverflow.com/questions/38034271/no-type-or-protocol-named-uiapplicationdelegate

http://blog.csdn.net/idoshi201109/article/details/50620063

 

http://blog.sina.com.cn/s/blog_e1d09f7b0102wkc3.html