IOC，DI框架
http://objection-framework.org/
HTTP网络框架
https://github.com/AFNetworking/AFNetworking

网络图像库
https://github.com/rs/SDWebImage?source=cc

自定义简单TabBar
https://github.com/alikaragoz/AKTabBarController

简化autolayout
https://github.com/cloudkite/Masonry