Usage and specification of IOS macro definitions

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

dimensmacros.h//status Bar Height # define status_bar_height 20//navbar Height # define navigation_bar_height 44//status bar + navigation bar Height # # Status_and_navigation_height ((status_bar_height) + (navigation_bar_height))//Screen 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)// Screen resolution # define SCREEN_RESOLUTION (Screen_width * screen_height * ([UIScreen Mainscreen].scale))//Banner Height # 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

pathmacros.h//file directory #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

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)//  get RGB color #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]))//Angle to radians #define degrees_to_radians (d)   (d *  m_pi / 180)//iOS version greater than or equal to 7.0 #define ios7_or_later system_version_greater_than_or_equal _to (@ "7.0")//iOS version #define ios8_or_later system_version_greater_than_or_equal_to (@ "8.0")//greater than or equal to 8.0 IOS6, the starting height of the view in the Navigation VC # # YH_HEIGHT  (ios7_or_later ? 64:0)//Get system timestamp #define getcurenttime [nsstring  stringwithformat:@ "%ld",  (long) [[[nsdate date] timeintervalsince1970]]

4. Notification of notification related macros

notificationmacros.h//system Notification Definition #define tncancelfavoriteproductnotification      @ "Tncancelfavoriteproductnotification"       //when you cancel a collection #define  tnmarkfavoriteproductnotification       @ "TNMarkFavoriteProductNotification "        //Tag Collection when #define knotficationdownloadprogresschanged      @ "knotficationdownloadprogresschanged"       //Download Progress Change # define knotificationpausedownload               @ "Knotificationpausedownload"                 //Pause Download #define knotificationstartdownload               @ "Knotificationstartdownload"                 //Start Download #define knotificationdownloadsuccess             @ "Knotificationdownloadsuccess"               //Download Successful #define knotificationdownloadfailed              @ "Knotificationdownloadfailed"                //Download Failed #define  knotificationdownloadnewmagazine        @ " Knotificationdownloadnewmagazine "

Server-side API interface macros

apistringmacros.h////////////////////////////////////////////////////////////////////////////////////////////// Interface name-related #ifdef debug//debug state test api#define api_base_url_string     @ " http://boys.test.companydomain.com/api/"#else on-line api#define api_base_url_string   in//release state    @ "http://www.companydomain.com/api/" #endif//interface #define get_content_detail       @ "Channel/getcontentdetail"  //get content details (including previous and next) #define  GET_COMMENT_LIST         @ "Comment/getcommentlist"    //get a list of comments #define  comment_login           @ "Comment/login"              //get a list of comments #define comment_publish          @ "Comment/publish"            //Post Comments #define&nBsp comment_delete          @ "Comment/delComment"         //Delete Comments #define loginout                 @ "Common/logout"              //Log Out

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

Create an import of all macros related files 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"

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

Xcodeprojectname-prefix.pch#ifdef __objc__ #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import "Macros.h" #endif

Usage and specification of IOS macro definitions