iOS常用宏 定義
編輯：IOS開發基礎
總結了iOS開發過程中的一些常用宏，以後會陸陸續續添加進來。
字符串是否為空
#define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO )
數組是否為空
#define kArrayIsEmpty(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0)
字典是否為空
#define kDictIsEmpty(dic) (dic == nil || [dic isKindOfClass:[NSNull class]] || dic.allKeys == 0)
是否是空對象
#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))
獲取屏幕寬度與高度 ( " \ ":連接行標志，連接上下兩行 )
#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)
一些常用的縮寫
#define kApplication [UIApplication sharedApplication] #define kKeyWindow [UIApplication sharedApplication].keyWindow #define kAppDelegate [UIApplication sharedApplication].delegate #define kUserDefaults [NSUserDefaults standardUserDefaults] #define kNotificationCenter [NSNotificationCenter defaultCenter]
APP版本號
#define kAppVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]
系統版本號
#define kSystemVersion [[UIDevice currentDevice] systemVersion]
獲取當前語言
#define kCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])
判斷是否為iPhone
#define kISiPhone (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
判斷是否為iPad
#define kISiPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
獲取沙盒Document路徑
#define kDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
獲取沙盒temp路徑
#define kTempPath NSTemporaryDirectory()
獲取沙盒Cache路徑
#define kCachePath [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]
判斷是真機還是模擬器
#if TARGET_OS_IPHONE //真機 #endif #if TARGET_IPHONE_SIMULATOR //模擬器 #endif
開發的時候打印，但是發布的時候不打印的NSLog
#ifdef DEBUG #define NSLog(...) NSLog(@"%s 第%d行 \n %@\n\n",__func__,__LINE__,[NSString stringWithFormat:__VA_ARGS__]) #else #define NSLog(...) #endif
顏色
#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)/255.0,arc4random_uniform(256)/255.0,arc4random_uniform(256)/255.0) //隨機色生成 #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/強引用
#define kWeakSelf(type) __weak typeof(type) weak##type = type; #define kStrongSelf(type) __strong typeof(type) type = weak##type;
由角度轉換弧度
#define kDegreesToRadian(x) (M_PI * (x) / 180.0)
由弧度轉換角度
#define kRadianToDegrees(radian) (radian * 180.0) / (M_PI)
獲取一段時間間隔
#define kStartTime CFAbsoluteTime start = CFAbsoluteTimeGetCurrent(); #define kEndTime NSLog(@"Time: %f", CFAbsoluteTimeGetCurrent() - start)
宏（指令）定義
#ifndef MacroDefinition_h // 如果沒定義 #define MacroDefinition_h
獲取設備尺寸大小
NavBar高度
#define NavigationBar_HEIGHT 44
獲取屏幕 寬度、高度
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) #define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
打印日志
DEBUG 模式下打印日志,當前行
#ifdef DEBUG # define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__); #else # define DLog(...) #endif
重寫NSLog,Debug模式下打印日志和當前行數
#if DEBUG #define NSLog(FORMAT, ...) fprintf(stderr,"\nfunction:%s line:%d content:%s\n", __FUNCTION__, __LINE__, ［NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]); #else #define NSLog(FORMAT, ...) nil #endif
DEBUG 模式下打印日志,當前行 並彈出一個警告
#ifdef DEBUG
# 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
#define ITTDEBUG
#define ITTLOGLEVEL_INFO 10
#define ITTLOGLEVEL_WARNING 3
#define ITTLOGLEVEL_ERROR 1
#ifndef ITTMAXLOGLEVEL
#ifdef DEBUG
#define ITTMAXLOGLEVEL ITTLOGLEVEL_INFO
#else
#define ITTMAXLOGLEVEL ITTLOGLEVEL_ERROR
#endif
#endifThe general purpose logger. This ignores logging levels.
#ifdef ITTDEBUG #define ITTDPRINT(xx, ...) NSLog(@"%s(%d): " xx, __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__) #else #define ITTDPRINT(xx, ...) ((void)0) #endif
打印當前方法的名稱
#define ITTDPRINTMETHODNAME() ITTDPRINT(@"%s", __PRETTY_FUNCTION__)
Log-level based logging macros.
#if ITTLOGLEVEL_ERROR <= ITTMAXLOGLEVEL
#define ITTDERROR(xx, ...) ITTDPRINT(xx, ##__VA_ARGS__)
#else
#define ITTDERROR(xx, ...) ((void)0)
#endif
#if ITTLOGLEVEL_WARNING <= ITTMAXLOGLEVEL
#define ITTDWARNING(xx, ...) ITTDPRINT(xx, ##__VA_ARGS__)
#else
#define ITTDWARNING(xx, ...) ((void)0)
#endif
#if ITTLOGLEVEL_INFO <= ITTMAXLOGLEVEL
#define ITTDINFO(xx, ...) ITTDPRINT(xx, ##__VA_ARGS__)
#else
#define ITTDINFO(xx, ...) ((void)0)
#endif
#ifdef ITTDEBUG
#define ITTDCONDITIONLOG(condition, xx, ...) { if ((condition)) { \
ITTDPRINT(xx, ##__VA_ARGS__); \
} \
} ((void)0)
#else
#define ITTDCONDITIONLOG(condition, xx, ...) ((void)0)
#endif
#define ITTAssert(condition, ...) \
do { \
if (!(condition)) { \
［NSAssertionHandler currentHandler] \
handleFailureInFunction:[NSString stringWithUTF8String:__PRETTY_FUNCTION__] \
file:[NSString stringWithUTF8String:__FILE__] \
lineNumber:__LINE__ \
description:__VA_ARGS__]; \
} \
} while(0)系統
是否iPad
#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
是否iPad
#define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone
獲取系統版本
#define IOS_VERSION ［[UIDevice currentDevice] systemVersion] floatValue] #define CurrentSystemVersion ［UIDevice currentDevice] systemVersion]
獲取當前語言
#define CurrentLanguage (［NSLocale preferredLanguages] objectAtIndex:0])
判斷是否 Retina屏、設備是否為iPone 5、是否是iPad
#define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), ［UIScreen mainScreen] currentMode].size) : NO) #define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), ［UIScreen mainScreen] currentMode].size) : NO) #define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
判斷設備的操做系統是不是ios7
#define IOS7 (［[UIDevice currentDevice].systemVersion doubleValue] >= 7.0]
判斷當前設備是不是iphone5
#define kScreenIphone5 ((［UIScreen mainScreen] bounds].size.height)>=568)
獲取當前屏幕的高度
#define kMainScreenHeight ([UIScreen mainScreen].applicationFrame.size.height)
獲取當前屏幕的寬度
#define kMainScreenWidth ([UIScreen mainScreen].applicationFrame.size.width)
定義一個define函數
#define TT_RELEASE_CF_SAFELY(__REF) { if (nil != (__REF)) { CFRelease(__REF); __REF = nil; } }判斷是真機還是模擬器
#if TARGET_OS_IPHONE //iPhone Device #endif #if TARGET_IPHONE_SIMULATOR //iPhone Simulator #endif
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)
內存
使用ARC和不使用ARC
#if __has_feature(objc_arc) //compiling with ARC #else // compiling without ARC #endif
#pragma mark - common functions
#define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; }釋放一個對象
#define SAFE_DELETE(P) if(P) { [P release], P = nil; }
#define SAFE_RELEASE(x) [x release];x=nil圖片
讀取本地圖片
#define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:［NSBundle mainBundle]pathForResource:file ofType:ext］
定義UIImage對象
#define IMAGE(A) [UIImage imageWithContentsOfFile:［NSBundle mainBundle] pathForResource:A ofType:nil］
定義UIImage對象
#define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer］
//建議使用前兩種宏定義,性能高於後者
顏色類
rgb顏色轉換（16進制->10進制）
#define UIColorFromRGB(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]
帶有RGBA的顏色設置
#define COLOR(R, G, B, A) [UIColor colorWithRed:R/255.0 green:G/255.0 blue:B/255.0 alpha:A]
獲取RGB顏色
#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)
背景色
#define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0 green:236.0/255.0 blue:231.0/255.0 alpha:1.0]
清除背景色
#define CLEARCOLOR [UIColor clearColor] #pragma mark - color functions #define RGBCOLOR(r,g,b) [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:1] #define RGBACOLOR(r,g,b,a) [UIColor colorWithRed:(r)/255.0f green:(g)/255.0f blue:(b)/255.0f alpha:(a)]
其他
方正黑體簡體字體定義
#define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]
定義一個API
#define APIURL @"http://xxxxx/"
登錄API
#define APILogin [APIURL stringByAppendingString:@"Login"]
設置View的tag屬性
#define VIEWWITHTAG(_OBJECT, _TAG) [_OBJECT viewWithTag : _TAG]
程序的本地化,引用國際化的文件
#define MyLocal(x, ...) NSLocalizedString(x, nil)
G－C－D
#define BACK(block) dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), block) #define MAIN(block) dispatch_async(dispatch_get_main_queue(),block)
NSUserDefaults 實例化
#define USER_DEFAULT [NSUserDefaults standardUserDefaults]
由角度獲取弧度
#define degreesToRadian(x) (M_PI * (x) / 180.0)
由弧度獲取角度
#define radianToDegrees(radian) (radian*180.0)/(M_PI)
單例化一個類
#define SYNTHESIZE_SINGLETON_FOR_CLASS(classname) \
\
static classname *shared##classname = nil; \
\
+ (classname *)shared##classname \
{ \
@synchronized(self) \
{ \
if (shared##classname == nil) \
{ \
shared##classname = ［self alloc] init]; \
} \
} \
\
return shared##classname; \
} \
\
+ (id)allocWithZone:(NSZone *)zone \
{ \
@synchronized(self) \
{ \
if (shared##classname == nil) \
{ \
shared##classname = [super allocWithZone:zone]; \
return shared##classname; \
} \
} \
\
return nil; \
} \
\
- (id)copyWithZone:(NSZone *)zone \
{ \
return self; \
}
#endif
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