iOS-为方便项目开发在pch加入一些经常使用宏定义

1.关于NSLog输出

/**
 *  当Xcode为Release时不输出，为Debug时输出
 *
 *  @param ...
 *
 *  @return 
 */
#ifndef __OPTIMIZE__
#define NSLog(...) NSLog(__VA_ARGS__)

/**
 *  打印的时候能够看到类名、方法以及行数
 *
 */
//#define NSLog(fmt,...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ## __VA_ARGS__);

#else
#define NSLog(...) {}
#endif

2.颜色

#define RGB_Color(r,g,b) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:1.0]
#define RGB_ColorAlpha(r,g,b,a) [UIColor colorWithRed:(r)/255.0 green:(g)/255.0 blue:(b)/255.0 alpha:a]
#define RGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16)) / 255.0 green:((float)((rgbValue & 0xFF00) >> 8)) / 255.0 blue:((float)(rgbValue & 0xFF)) / 255.0 alpha:1.0]
#define RGBALPHA(rgbValue,a) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16)) / 255.0 green:((float)((rgbValue & 0xFF00) >> 8)) / 255.0 blue:((float)(rgbValue & 0xFF)) / 255.0 alpha:(a)]

3.屏幕大小

#define APP_SIZE [UIScreen mainScreen].bounds.size
#define APP_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define APP_HEIGHT ([UIScreen mainScreen].bounds.size.height)

4.系统版本号

#define PPSystemVersionGreaterOrEqualThan(version) ([[[UIDevice currentDevice] systemVersion] floatValue] >= version)

#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]

#define SYSTEM_VERSION_EQUAL_TO(v) 
([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedSame)
#define SYSTEM_VERSION_GREATER_THAN(v) 
([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedDescending)
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) 
([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN(v) 
([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] == NSOrderedAscending)
#define SYSTEM_VERSION_LESS_THAN_OR_EQUAL_TO(v) 
([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedDescending)

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