Collection of Objective-C Macros

Below you’ll find a collection of Objective-C macros, a reader submission (thank you): // Device Info #define UA_isIPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) #define UA_isIPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) #define UA_isRetinaDevice ([[UIScreen mainScreen] respondsToSelector:@selector(scale)] && [[UIScreen mainScreen] scale] >= 2) #define U