經常使用宏定義

 

#pragma mark ----------------------------- 系統控件默認尺寸

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

#define NAV_WIDTH                   SCREEN_WIDTH
#define NAV_HEIGHT                  (44)

#define TAB_BAR_WIDTH               SCREEN_WIDTH
#define TAB_BAR_HEIGHT              (48)

#define STATUS_BAR_HEIGHT           (20)


#pragma mark - Thread functions
#pragma mark   GCD線程相關
//線程執行方法 GCD
#define PERFORMSEL_BACK(block) dispatch_async(\
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),\
block)

#define PERFORMSEL_MAIN(block) dispatch_async(dispatch_get_main_queue(),\
block)


#pragma mark - Singleton Creation  functions
#pragma mark   單例建立，統一單例命名調用方式
//單例聲明 .h中使用
#undef	AS_SINGLETON
#define AS_SINGLETON( __class ) \
+ (__class *)sharedInstance;
//單例實現建立 .m中使用
#undef	DEF_SINGLETON
#define DEF_SINGLETON( __class ) \
+ (__class *)sharedInstance \
{ \
static dispatch_once_t once; \
static __class * __singleton__; \
dispatch_once( &once, ^{ __singleton__ = [[__class alloc] init]; } ); \
return __singleton__; \
}


#pragma mark - Nil or NULL
#pragma mark   爲空判斷
//是否爲空或是[NSNull null]
#define NotNilAndNull(_ref)  (((_ref) != nil) && (![(_ref) isEqual:[NSNull null]]))
#define IsNilOrNull(_ref)   (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]))

//字符串是否爲空
#define IsStrEmpty(_ref)    (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]) ||([(_ref)isEqualToString:@""]))
//數組是否爲空
#define IsArrEmpty(_ref)    (((_ref) == nil) || ([(_ref) isEqual:[NSNull null]]) ||([(_ref) count] == 0))


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


#pragma mark 系統判斷
#define IOS9_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"9.0"] != NSOrderedAscending )
#define IOS8_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"8.0"] != NSOrderedAscending )
#define IOS7_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"7.0"] != NSOrderedAscending )
#define IOS6_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"6.0"] != NSOrderedAscending )
#define IOS5_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"5.0"] != NSOrderedAscending )
#define IOS4_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"4.0"] != NSOrderedAscending )
#define IOS3_OR_LATER	( [[[UIDevice currentDevice] systemVersion] compare:@"3.0"] != NSOrderedAscending )

//檢查系統版本
#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)


//機型判斷
#define IS_IPAD         ((UI_USER_INTERFACE_IDIOM()==UIUserInterfaceIdiomPad))
#define IS_IPADz         ([(UI_USER_INTERFACE_IDIOM()==UIUserInterfaceIdiomPad) intValue])

#define IS_IPHONE_5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)
#define IS_IPHONE_6 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(750, 1334), [[UIScreen mainScreen] currentMode].size) : NO)
//iphone6_p  放大模式下的 currentMode反饋尺寸 (1125, 2001)
#define IS_IPHONE_6p (([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1242, 2208), [[UIScreen mainScreen] currentMode].size) : NO)||([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1125, 2001), [[UIScreen mainScreen] currentMode].size) : NO))
//#define IS_IPHONE_4 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) : NO)
#define WIDTH_FIT ([[UIScreen mainScreen] bounds].size.width/320)
#define HEIGHT_FIT (([[UIScreen mainScreen] bounds].size.height-64)/504)
#define IS_IPHONE_4 ([UIScreen mainScreen].bounds.size.height == 480)

//適配iphoneX
#define kStatusBarHeight [UIApplication sharedApplication].statusBarFrame.size.height
#define kNavBar ((iPhoneX || iPhoneMAXR) ? 88.0 : 64.0)
#define kTabBar ((iPhoneX || iPhoneMAXR)  ? 83.0 : 49.0)
#define kStatusBar ((iPhoneX || iPhoneMAXR) ? 44.0 : 22.0)
#define iPhoneX (UIScreen.mainScreen.bounds.size.width == 375 && UIScreen.mainScreen.bounds.size.height == 812.0 ? true : false)
#define iPhoneMAXR (UIScreen.mainScreen.bounds.size.height == 812.0 || UIScreen.mainScreen.bounds.size.height == 896.0 ? true : false)

//顏色建立
#undef  RGBCOLOR
#define RGBCOLOR(r,g,b) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1]

#undef  RGBACOLOR
#define RGBACOLOR(r,g,b,a) [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:a]

#undef	HEX_RGB
#define HEX_RGB(V)		[UIColor colorWithRGBHex:V]
 //HEX_RGB(V)  需加分類方法  SIP(APP)直接取色
+ (UIColor *)colorWithRGBHex:(UInt32)hex
{
	int r = (hex >> 16) & 0xFF;
	int g = (hex >> 8) & 0xFF;
	int b = (hex) & 0xFF;
	
	return [UIColor colorWithRed:r / 255.0f
						   green:g / 255.0f
							blue:b / 255.0f
						   alpha:1.0f];
}

參考文章：https://segmentfault.com/a/1190000003507630