ios UI 适配布局相关文章

1. http://lvwenhan.com/ios/430.html

2 . http://blog.csdn.net/liangliang103377/article/details/40082231

3.  http://www.cocoachina.com/ios/20140915/9623.html

4.  写代码布局 http://www.cocoachina.com/ios/20150702/12217.html