Usage and specification of IOS macro definitions

http://my.oschina.net/leejan97/blog/354904

Macro definitions are used in many ways, such as defining heights, judging iOS systems, tool classes, and documentation such as file paths and server-side API interfaces. In order to the macro can quickly locate and understand its function, we better in the definition of the time to put it into a specific header file, the following I would like to introduce some commonly used macros to classify, sub-file definition, I hope to be helpful.

1. Define a macro for a dimension class

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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

2. Define a macro for the sandbox catalog file

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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

3. Macros for tool classes

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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]]

4. Notification of notification related macros

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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"

Server-side API interface macros

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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

There are many other types of macros that are not listed here

Create an import of all macros related files Macros.h

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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"

In the PCH file for the Xcode project, import the Macros.h file

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XcodeProjectName-Prefix.pch#ifdef __OBJC__    #import <UIKit/UIKit.h>    #import <Foundation/Foundation.h>    #import "Macros.h"#endif

Usage and specification of IOS macro definitions