#define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) : NO)
posted on 2012-05-02 14:59 周爃慧 阅读(238) 评论(0) 编辑 收藏 举报