以下为iOS开发中常用宏：
#define NavigationBar_HEIGHT 44
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
#define SAFE_RELEASE(x) [x release];x=nil
#define IOS_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]
#define CurrentSystemVersion ([[UIDevice currentDevice] systemVersion])
#define CurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])
#define BACKGROUND_COLOR [UIColor colorWithRed:242.0/255.0 green:236.0/255.0 blue:231.0/255.0 alpha:1.0]
//----------------------------------------------------------------------------------------------------------------------------------LOG 打印
//use dlog to print while in debug model 这个没用过, 你们也可以试试
#ifdef DEBUG
# define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);
#else
# define DLog(...)
#endif
// 这个本人常用的宏，只感觉时间对不上，其他很稳定
#ifdef DEBUG
#define NSLog(FORMAT, ...) fprintf(__stderrp,"%s %s:%d\t%s\t%s\n",__TIME__,[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String], __LINE__, __FUNCTION__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);
#else
#define NSLog(...)
#endif
debug或者release版本下打印输出函数替换，以及标识
@param format nil
@param ... nil
@return debug下TL_ISDEBUG为YES，release下TL_ISDEBUG为NO
*/
#ifdef DEBUG
#define TL_CLog(format, ...) NSLog(format, ## __VA_ARGS__)
# define TL_ISDEBUG 1
#else
#define TL_CLog(format,...)
# define TL_ISDEBUG 0
#endif
//----------------------------------------------------------------------------------------------------------------------------------LOG 打印
//手机型号
#define iPhone4 ([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 iPhone6 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? (CGSizeEqualToSize(CGSizeMake(750, 1334), [[UIScreen mainScreen] currentMode].size)) : NO)
#define iPhone6plus ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1242, 2208), [[UIScreen mainScreen] currentMode].size) : NO)
#define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#if TARGET_OS_IPHONE
//iPhone Device
//判断是否真机
#endif
#if TARGET_IPHONE_SIMULATOR
//iPhone Simulator
//判断是否模拟器
#endif
//ARC
#if __has_feature(objc_arc)
//compiling with ARC
#else
// compiling without ARC
#endif
//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)
// 不堵塞线程并在主线程的延迟执行 timer:延迟时间，单位：秒；与主线程同步
#define GCDMainDelay(timer,block) dispatch_after(dispatch_time(DISPATCH_TIME_NOW, INT64_C(timer) * NSEC_PER_SEC), dispatch_get_main_queue(), block)
// 将code调到主线程执行，与主线程同步
#define GCDMain(block) dispatch_async(dispatch_get_main_queue(), block)
#define USER_DEFAULT [NSUserDefaults standardUserDefaults] // 获取 NSUserDefaults 对象
#define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer]] // 传入图片名称,获取UIImage
#pragma mark - common functions
#define RELEASE_SAFELY(__POINTER) { [__POINTER release]; __POINTER = nil; }
#pragma mark - degrees/radian functions
#define degreesToRadian(x) (M_PI * (x) / 180.0)
#define radianToDegrees(radian) (radian*180.0)/(M_PI)
#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)]
#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
#endif
// The 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
// Prints the current method's name.
#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)
#define _po(o) DLOG(@"%@", (o))
#define _pn(o) DLOG(@"%d", (o))
#define _pf(o) DLOG(@"%f", (o))
#define _ps(o) DLOG(@"CGSize: {%.0f, %.0f}", (o).width, (o).height)
#define _pr(o) DLOG(@"NSRect: {{%.0f, %.0f}, {%.0f, %.0f}}", (o).origin.x, (o).origin.x, (o).size.width, (o).size.height)
#define DOBJ(obj) DLOG(@"%s: %@", #obj, [(obj) description])
#define MARK NSLog(@"\nMARK: %s, %d", __PRETTY_FUNCTION__, __LINE__)
#pragma mark - Base
/** 弱引用*/
#define kWeakSelf(type) __weak typeof(type) weak##type = type;
/** 强引用*/
#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)
#pragma mark - Check
/** 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))
/** 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)
/** 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
#pragma mark - 缩写
#define kApplication [UIApplication sharedApplication]
#define kKeyWindow [UIApplication sharedApplication].keyWindow
#define kAppDelegate ((AppDelegate*)[UIApplication sharedApplication].delegate)
#define kUserDefaults [NSUserDefaults standardUserDefaults]
#define kNotificationCenter [NSNotificationCenter defaultCenter]
/** 获取沙盒 Document 路径*/
#define kDocumentPath [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
/** 获取沙盒 temp 路径(注:iPhone 重启会清空)*/
#define kTempPath NSTemporaryDirectory()
/** 获取沙盒 Cache 路径*/
#define kCachePath [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]
/** 获取程序包中程序路径*/
#define kResource(f, t) [[NSBundle mainBundle] pathForResource:(f) ofType:(t)];
///------ 应用程序版本号version ------
#define kAppVersion ([[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"])
///当前日期字符串
#define DATE_STRING \
({NSDateFormatter *fmt = [[NSDateFormatter alloc] init];\
[fmt setDateFormat:@"YYYY-MM-dd hh:mm:ss"];\
[fmt stringFromDate:[NSDate date]];})
///------ other ------
#define kAppDelegate ([[UIApplication sharedApplication] delegate])
#define kAppWindow (kAppDelegate.window)
#define kAppRootViewController (kAppWindow.rootViewController)
#define UserDefaults ([NSUserDefaults standardUserDefaults])
#define NotificationCenter ([NSNotificationCenter defaultCenter])
