IOS开发中常用的宏概述

//字符串是否为空
#define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] > 16)) / 255.0 \
green:((float)((rgbValue & 0xFF00) >> 8)) / 255.0 \
blue:((float)(rgbValue & 0xFF)) / 255.0 alpha:1.0]

//弱引用/强引用
#define kWeakSelf(type) __weak typeof(type) weak##type = type;
#define kStrongSelf(type) __strong typeof(type) type = weak##type;

//由角度转换弧度
#define kDegreesToRadian(x)  (M_PI * (x) / 180.0)
//由弧度转换角度
#define kRadianToDegrees(radian) (radian * 180.0) / (M_PI)

//获取一段时间间隔
#define kStartTime CFAbsoluteTime start = CFAbsoluteTimeGetCurrent();
#define kEndTime NSLog(@"Time: %f", CFAbsoluteTimeGetCurrent() - start)

DimensMacros.h
//状态栏高度
#define STATUS_BAR_HEIGHT 20
//NavBar高度
#define NAVIGATION_BAR_HEIGHT 44
//状态栏 ＋ 导航栏 高度
#define STATUS_AND_NAVIGATION_HEIGHT ((STATUS_BAR_HEIGHT) + (NAVIGATION_BAR_HEIGHT))

//屏幕 rect
#define SCREEN_RECT ([UIScreen mainScreen].bounds)

#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)

#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)

#define CONTENT_HEIGHT (SCREEN_HEIGHT - NAVIGATION_BAR_HEIGHT - STATUS_BAR_HEIGHT)

//屏幕分辨率
#define SCREEN_RESOLUTION (SCREEN_WIDTH * SCREEN_HEIGHT * ([UIScreen mainScreen].scale))


//广告栏高度
#define BANNER_HEIGHT 215

#define STYLEPAGE_HEIGHT 21

#define SMALLTV_HEIGHT 77

#define SMALLTV_WIDTH 110

#define FOLLOW_HEIGHT 220

#define SUBCHANNEL_HEIGHT 62

PathMacros.h
//文件目录
#define kPathTemp          NSTemporaryDirectory()
#define kPathDocument        [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]
#define kPathCache         [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0]
#define kPathSearch         [kPathDocument stringByAppendingPathComponent:@"Search.plist"]

#define kPathMagazine        [kPathDocument stringByAppendingPathComponent:@"Magazine"]
#define kPathDownloadedMgzs     [kPathMagazine stringByAppendingPathComponent:@"DownloadedMgz.plist"]
#define kPathDownloadURLs      [kPathMagazine stringByAppendingPathComponent:@"DownloadURLs.plist"]
#define kPathOperation       [kPathMagazine stringByAppendingPathComponent:@"Operation.plist"]

#define kPathSplashScreen      [kPathCache stringByAppendingPathComponent:@"splashScreen"]
#endif

UtilsMacros.h
//Log utils marco

#define ALog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);

#ifdef DEBUG
#define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);
#else
#define DLog(...)
#endif

#ifdef DEBUG
#define ULog(...)
//#define ULog(fmt, ...) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:[NSString stringWithFormat:@"%s\n [Line %d] ", __PRETTY_FUNCTION__, __LINE__] message:[NSString stringWithFormat:fmt, ##__VA_ARGS__] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil]; [alert show]; }
#else
#define ULog(...)
#endif


//System version utils

#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)


// 获取RGB颜色
#define RGBA(r,g,b,a) [UIColor colorWithRed:r/255.0f green:g/255.0f blue:b/255.0f alpha:a]
#define RGB(r,g,b) RGBA(r,g,b,1.0f)


#define IsPortrait ([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortrait || [UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationPortraitUpsideDown)


#define IsNilOrNull(_ref)  (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]))


//角度转弧度
#define DEGREES_TO_RADIANS(d) (d * M_PI / 180)

//大于等于7.0的ios版本
#define iOS7_OR_LATER SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")

//大于等于8.0的ios版本
#define iOS8_OR_LATER SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"8.0")

//iOS6时，导航VC中view的起始高度
#define YH_HEIGHT (iOS7_OR_LATER ? 64:0)

//获取系统时间戳
#define getCurentTime [NSString stringWithFormat:@"%ld", (long)[[NSDate date] timeIntervalSince1970]]

NotificationMacros.h
//系统Notification定义

#define TNCancelFavoriteProductNotification   @"TNCancelFavoriteProductNotification"   //取消收藏时
#define TNMarkFavoriteProductNotification    @"TNMarkFavoriteProductNotification"    //标记收藏时

#define kNotficationDownloadProgressChanged   @"kNotficationDownloadProgressChanged"   //下载进度变化
#define kNotificationPauseDownload       @"kNotificationPauseDownload"        //暂停下载
#define kNotificationStartDownload       @"kNotificationStartDownload"        //开始下载

#define kNotificationDownloadSuccess      @"kNotificationDownloadSuccess"       //下载成功
#define kNotificationDownloadFailed       @"kNotificationDownloadFailed"       //下载失败
#define kNotificationDownloadNewMagazine    @"kNotificationDownloadNewMagazine"
服务端API接口的宏

APIStringMacros.h
//////////////////////////////////////////////////////////////////////////////////////////////////
//接口名称相关

#ifdef DEBUG
//Debug状态下的测试API
#define API_BASE_URL_STRING   @"http://boys.test.companydomain.com/api/"

#else
//Release状态下的线上API
#define API_BASE_URL_STRING   @"http://www.companydomain.com/api/"

#endif

//接口
#define GET_CONTENT_DETAIL   @"channel/getContentDetail" //获取内容详情(含上一个和下一个)

#define GET_COMMENT_LIST    @"comment/getCommentList"  //获取评论列表

#define COMMENT_LOGIN      @"comment/login"      //获取评论列表

#define COMMENT_PUBLISH     @"comment/publish"     //发布评论

#define COMMENT_DELETE     @"comment/delComment"    //删除评论

#define LOGINOUT        @"common/logout"      //登出
还有很多其他类型的宏，此处不一一列举

创建一个import所有宏相关的文件Macros.h

Macros.h
#import "UtilsMacros.h"
#import "APIStringMacros.h"
#import "DimensMacros.h"
#import "NotificationMacros.h"
#import "SharePlatformMacros.h"
#import "StringMacros.h"
#import "UserBehaviorMacros.h"
#import "PathMacros.h"
在xcode项目的pch文件中，导入Macros.h文件

XcodeProjectName-Prefix.pch
#ifdef __OBJC__
  #import 
  #import 
  #import "Macros.h"
#endif