How to define preprocessor macro to check iOS version

Question

I use it to check iOS version, but it doesn\'t work:

#ifndef kCFCoreFoundationVersionNumber_iPhoneOS_5_0
#define kCFCoreFoundationVersionNumber_iPhoneOS_5_0          


        

Answer 1

#define isIOS7 ([[[UIDevice currentDevice]systemVersion]floatValue] > 6.9) ?1 :0