iOS development-Common macro definitions

Sometimes, we need to make the code simple so that it's easy to read code. We can extract some unchanging stuff and change things as parameters. Defined as a macro, so it's much easier to write.

The following examples illustrate some common macro definitions and share them with you:

1. Determine if the device's operating system is IOS7
1. #define IOS7 ([[[Uidevice currentdevice].systemversion Doublevalue] >= 7.0])




2. Determine if the current device is IPhone5
1. #define KSCREENIPHONE5 ([[[UIScreen Mainscreen] bounds].size.height) >=568)


3. Get the height of the current screen
1. #define Kmainscreenheight ([UIScreen mainscreen].applicationframe.size.height)

4. Get the width of the current screen
1. #define KMAINSCREENWIDTH ([UIScreen mainscreen].applicationframe.size.width)

5. Get RGB color
1. #define Smscolor (R, G, b) [Uicolor colorwithred: (r)/255.0 Green: (g)/255.0 Blue: (b)/255.0 alpha:1.0]

6: Custom Log

#ifdef DEBUG
#define SMSLOG (...) NSLog (__va_args__)
#else
#define SMSLOG (...)
#endif

7. Single case

01.//@interface
#define SINGLETON_INTERFACE (ClassName)
03.+ (ClassName *) shared# #className;
04.
05.
06.//@implementation
#define Singleton_implementation (ClassName)
08.static ClassName *_instance;
09.+ (ID) allocwithzone: (struct _nszone *) zone
10.{
11.static dispatch_once_t Oncetoken;
12.dispatch_once (&oncetoken, ^{
13._instance = [Super Allocwithzone:zone];
14.});
15.return _instance;
16.}
17.+ (ClassName *) shared# #className
18.{
19.static dispatch_once_t Oncetoken;
20.dispatch_once (&oncetoken, ^{
21._instance = [[Self alloc] init];
22.});
23.return _instance;
24.}

Used to determine if a login has been made

#define Islongin [Kdocumentpath stringbyappendingstring:@ "/islongin.plist"]

#define CONTROLLERW [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). FirstObject stringbyappendingstring:@ "/controllerw"]

#define Cancelorderpath [Kdocumentpath stringbyappendingstring:@ "/cancelorderpath"]

Used to temporarily save the current location information

#define Localaddressinfo [Nssearchpathfordirectoriesindomains (Nscachesdirectory, Nsuserdomainmask,yes). Firstobject stringbyappendingstring:@ "/localaddressinfo"]

#define Userinfoo [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). FirstObject stringbyappendingstring:@ "/userinfo.pliist"]

Save History contacts

#define Hislianxiren [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). FirstObject stringbyappendingstring:@ "/HISLIAWEDWEDNDDEWDF"]

Save Order Number

#define Saveorderno [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). FirstObject stringbyappendingstring:@ "/orderno"]

Save order type

#define Saveordernotype [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). FirstObject stringbyappendingstring:@ "/ordernotype"]

Save the address of the login return information

#define Klongininfopath [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). FirstObject stringbyappendingstring:@ "/localinfo.plist"]

Save History Search record to Local

#define Savehistorysearchrecord [Kdocumentpath stringbyappendingstring:@ "/historysearchrecord.plist"]

Temporarily save selected locations to local

#define Savetemporarysearchrecord [Nssearchpathfordirectoriesindomains (Nscachesdirectory, NSUserDomainMask,YES). Firstobject stringbyappendingstring:@ "/temporarysearchrecordlocalinfo.plist"]

Start coordinates

#define Savestartemporarysearchrecord [Nssearchpathfordirectoriesindomains (Nscachesdirectory, NSUserDomainMask, YES). Firstobject stringbyappendingstring:@ "/starpoint.plist"]

#define Colorgray [Uicolor colorwithred:245/255.0 green:245/255.0 blue:245/255.0 alpha:1]

#define Knavigationbartext self.navigationController.navigationBar.titleTextAttributes = @{ Nsforegroundcolorattributename:krgbcolor (255, 212, ten), Nsfontattributename: [Uifont boldsystemfontofsize:18]};

#define Ktintcolor [Uicolor colorwithred:253/255.0 green:208/255.0 blue:11/255.0 alpha:1.0]

/** navigation bar Title Text Size */

#define KNAVITITLEFONTSIZE 20.0

/** navigation bar Title text color */

#define Knavititlecolor [Uicolor colorwithred:250/255.0 green:190/255.0 blue:1/255.0 alpha:1.0]

#define Kviewbackgroundcolor [Uicolor colorwithred:245/255.0 green:245/255.0 blue:245/255.0 alpha:1.0]

Setting colors with RGB

#define KRGBCOLOR (r,g,b) [Uicolor colorwithred:r/255.0 green:g/255.0 blue:b/255.0 alpha:1.0]

#define KWINDOWH [UIScreen mainscreen].bounds.size.height//Application screen height

#define KWINDOWW [UIScreen mainscreen].bounds.size.width//Application screen width

#define Kappdelegate ((appdelegate*) ([UIApplication sharedapplication].delegate)

#define Kstoryboard (storyboardname) [Uistoryboard storyboardwithname:storyboardname Bundle:nil]

Get the scene object in the corresponding storyboard with the storyboard ID

#define KVCFROMSB (Storyboardid, Storyboardname) [[Uistoryboard storyboardwithname:storyboardname Bundle:nil] \

Instantiateviewcontrollerwithidentifier:storyboardid]

After removing iOS7, the split line margin on the left side of the cell default

#define KREMOVECELLSEPARATOR \

-(void) TableView: (UITableView *) TableView Willdisplaycell: (UITableViewCell *) cell Forrowatindexpath: (Nsindexpath *) Indexpath{\

Cell.separatorinset = uiedgeinsetszero;\

Cell.layoutmargins = Uiedgeinsetszero; \

Cell.preservessuperviewlayoutmargins = NO; \

}

Docment folder Directory

#define Kdocumentpath nssearchpathfordirectoriesindomains (nsdocumentdirectory, Nsuserdomainmask, YES). FirstObject

#define SCREEN_FRAME ([UIScreen mainscreen].applicationframe)

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

#define Screen_height ([UIScreen mainscreen].bounds.size.height)

#define Colorwhite [Uicolor colorwithred:255.0 green:255.0 blue:255.0 alpha:1]

#define Colorgray [Uicolor colorwithred:245/255.0 green:245/255.0 blue:245/255.0 alpha:1]

#define Colororange [Uicolor colorwithred:254/255.0 green:216/255.0 blue:0.0 alpha:1]

#define Colorblue [Uicolor colorwithred:58/255.0 green:225/255.0 blue:1.0 alpha:1]

#define Colorblack [Uicolor colorwithred:17/255.0 green:17/255.0 blue:7/255.0 alpha:1]

#define Colorline [Uicolor colorwithred:220/255.0 green:220/255.0 blue:220/255.0 alpha:1]

#define Colortext [Uicolor colorwithred:200/255.0 green:200/255.0 blue:200/255.0 alpha:1]

#define Colortextselect [Uicolor colorwithred:248/255.0 green:152/255.0 blue:0/255.0 alpha:1]

#define Colorbigtext [Uicolor colorwithred:254/255.0 green:216/255.0 blue:3/255.0 alpha:1]

#define Colorblacktext [Uicolor colorwithred:45/255.0 green:45/255.0 blue:45/255.0 alpha:1]

#define Font (a) [Uifont fontwithname:@ "Helvetica" size:a]

#define Sysfont (a) [Uifont systemfontofsize:a]

#define IsLogin @ "Loginstyle"

#define LOCA [Nssearchpathfordirectoriesindomains (Nscachesdirectory, nsuserdomainmask,yes). Firstobject stringbyappendingstring:@ "/local.plist"]

#define IS_IPAD (ui_user_interface_idiom () = = Uiuserinterfaceidiompad)

#define Is_iphone (ui_user_interface_idiom () = = Uiuserinterfaceidiomphone)

#define Is_retina ([[UIScreen mainscreen] scale] >= 2.0)

#define SCREEN_WIDTHH ([[UIScreen mainscreen] bounds].size.width)

#define SCREEN_HEIGHTT ([[UIScreen mainscreen] bounds].size.height)

#define SCREEN_MAX_LENGTH (MAX (Screen_widthh, Screen_heightt))

#define SCREEN_MIN_LENGTH (MIN (Screen_width, Screen_heightt))

#define Is_iphone_4_or_less (Is_iphone && screen_max_length < 568.0)

#define IS_IPHONE_5 (is_iphone && screen_max_length = = 568.0)

#define IS_IPHONE_6 (is_iphone && screen_max_length = = 667.0)

#define IS_IPHONE_6P (is_iphone && screen_max_length = = 736.0)

#endif

iOS development-Common macro definitions