ios 常用宏定义

//字符串是否为空

#define kstringisempty(str) ([str iskindofclass:[nsnull class]] || str == nil || [str length] < 1 ? yes : no )

//数组是否为空

#define karrayisempty(array) (array == nil || [array iskindofclass:[nsnull class]] || array.count == 0)

//字典是否为空

#define kdictisempty(dic) (dic == nil || [dic iskindofclass:[nsnull class]] || dic.allkeys == 0)

//是否是空对象

#define kobjectisempty(_object) (_object == nil \

|| [_object iskindofclass:[nsnull class]] \

|| ([_object respondstoselector:@selector(length)] && [(nsdata *)_object length] == 0) \

|| ([_object respondstoselector:@selector(count)] && [(nsarray *)_object count] == 0))

//获取屏幕宽度与高度

#define kscreenwidth \

([[uiscreen mainscreen] respondstoselector:@selector(nativebounds)] ? [uiscreen mainscreen].nativebounds.size.width/[uiscreen mainscreen].nativescale : [uiscreen mainscreen].bounds.size.width)

#define kscreenheight \

([[uiscreen mainscreen] respondstoselector:@selector(nativebounds)] ? [uiscreen mainscreen].nativebounds.size.height/[uiscreen mainscreen].nativescale : [uiscreen mainscreen].bounds.size.height)

#define kscreensize \

([[uiscreen mainscreen] respondstoselector:@selector(nativebounds)] ? cgsizemake([uiscreen mainscreen].nativebounds.size.width/[uiscreen mainscreen].nativescale,[uiscreen mainscreen].nativebounds.size.height/[uiscreen mainscreen].nativescale) : [uiscreen mainscreen].bounds.size)

//一些缩写

#define kapplication [uiapplication sharedapplication]

#define kkeywindow [uiapplication sharedapplication].keywindow

#define kappdelegate [uiapplication sharedapplication].delegate

#define kuserdefaults [nsuserdefaults standarduserdefaults]

#define knotificationcenter [nsnotificationcenter defaultcenter]

//app版本号

#define kappversion [[[nsbundle mainbundle] infodictionary] objectforkey:@"cfbundleshortversionstring"]

//版本号

#define ksystemversion [[uidevice currentdevice] systemversion]

//获取当前语言

#define kcurrentlanguage ([[nslocale preferredlanguages] objectatindex:0])

//判断是否为iphone

#define kisiphone (ui_user_interface_idiom() == uiuserinterfaceidiomphone)

//判断是否为ipad

#define kisipad (ui_user_interface_idiom() == uiuserinterfaceidiompad)

//获取沙盒document路径

#define kdocumentpath [nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes) firstobject]

//获取沙盒temp路径

#define ktemppath nstemporarydirectory()

//获取沙盒cache路径

#define kcachepath [nssearchpathfordirectoriesindomains(nscachesdirectory, nsuserdomainmask, yes) firstobject]

//判断是真机还是模拟器

#if target_os_iphone

//真机

#endif

#if target_iphone_simulator

//模拟器

#endif

//开发的时候打印，但是发布的时候不打印的nslog

#ifdef debug

#define nslog(...) nslog(@"%s 第%d行 \n %@\n\n",__func__,__line__,[nsstring stringwithformat:__va_args__])

#else

#define nslog(...)

#endif

//颜色

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

#define krgbacolor(r, g, b, a) [uicolor colorwithred:(r)/255.0 green:(r)/255.0 blue:(r)/255.0 alpha:a]

#define krandomcolor krgbcolor(arc4random_uniform(256),arc4random_uniform(256),arc4random_uniform(256))

#define kcolorwithhex(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]

//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)