iPhone型号判断

//获取屏幕的宽度

#define kScreenWidth [UIScreen mainScreen].bounds.size.width

#define kScreenHeight [UIScreen mainScreen].bounds.size.height

//判断时iPhone几

#define kDoubleMargin 0.00001

#define IPHON4 (kScreenWidth  > 320-kDoubleMargin && kScreenWidth < 320+kDoubleMargin && kScreenHeight<480+kDoubleMargin)

#define IPHONE5 (kScreenWidth  > 320-kDoubleMargin && kScreenWidth < 320+kDoubleMargin && kScreenHeight>480+kDoubleMargin)

#define IPHONE6 (kScreenWidth  > 375-kDoubleMargin && kScreenWidth < 375+kDoubleMargin)

#define IPHONE6PLUS (kScreenWidth  > 414-kDoubleMargin && kScreenWidth < 414+kDoubleMargin)

#define IPAD_AIR ((UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad))

iPhone型号判断

原文：http://blog.csdn.net/lu_ca/article/details/46376331