iOS开发中常用的宏

  • OC对象判断是否为空？

    • 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))

  • UI尺寸类的宏

    • 状态栏高度 
      #define STATUS_BAR_HEIGHT 20
    • NavBar导航栏高度 
      #define NAVIGATION_BAR_HEIGHT 44
    • 状态栏 ＋ 导航栏 高度 
      #define STATUS_AND_NAVIGATION_HEIGHT ((STATUS_BAR_HEIGHT) + (NAVIGATION_BAR_HEIGHT))
    • 屏幕 rect 
      #define SCREEN_RECT ([UIScreen mainScreen].bounds)
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width) 
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
#define CONTENT_HEIGHT (SCREEN_HEIGHT - NAVIGATION_BAR_HEIGHT - STATUS_BAR_HEIGHT)
    • 屏幕分辨率 
      #define SCREEN_RESOLUTION (SCREEN_WIDTH * SCREEN_HEIGHT * ([UIScreen mainScreen].scale))

  • LOG日志打印

    • DEBUG 模式下打印日志,当前行 
      #ifdef DEBUG
# define DLog(fmt, ...) NSLog((@"%s [Line %d] " fmt), __PRETTY_FUNCTION__, __LINE__, ##__VA_ARGS__);
#else
# define DLog(...)
#endif
    • 重写NSLog,Debug模式下打印日志和当前行数 
      #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,当前行 并弹出一个警告 
      #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

  • 判断设备？系统？

    • 是否iPad 
      #define isPad (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
    • 是否iPad 
      #define someThing (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)? ipad: iphone
    • 获取系统版本 
      #define IOS_VERSION ［[UIDevice currentDevice] systemVersion] floatValue]
#define CurrentSystemVersion ［UIDevice currentDevice] systemVersion]
    • 判断是否 Retina屏? 
      #define isRetina ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), ［UIScreen mainScreen] currentMode].size) : NO)

  • 判断当前的iPhone设备/系统版本

    • 判断是否为iPhone 
      #define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
    • 判断是否为iPad 
      #define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
    • 判断是否为ipod 
      #define IS_IPOD ([[[UIDevice currentDevice] model] isEqualToString:@"iPod touch"])
    • 判断是否为 iPhone 5SE 
      #define iPhone5SE [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 568.0f
    • 判断是否为iPhone 6/6s 
      #define iPhone6_6s [[UIScreen mainScreen] bounds].size.width == 375.0f && [[UIScreen mainScreen] bounds].size.height == 667.0f
    • 判断是否为iPhone 6Plus/6sPlus 
      #define iPhone6Plus_6sPlus [[UIScreen mainScreen] bounds].size.width == 414.0f && [[UIScreen mainScreen] bounds].size.height == 736.0f
    • 获取系统版本 
      #define IOS_SYSTEM_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]
    • 判断 iOS 8 或更高的系统版本 
      #define IOS_VERSION_8_OR_LATER (([[[UIDevice currentDevice] systemVersion] floatValue] >=8.0)? (YES):(NO))
    • 判断设备的操做系统是不是ios7  
      #define IOS7 (［[UIDevice currentDevice].systemVersion doubleValue] >= 7.0]
    • 判断是真机还是模拟器 
      #if TARGET_OS_IPHONE
//iPhone Device
#endif 
#if TARGET_IPHONE_SIMULATOR
//iPhone Simulator
#endif
    • 检查系统版本 
      #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)

  • 定义一个define函数

    #define TT_RELEASE_CF_SAFELY(__REF) { if (nil != (__REF)) { CFRelease(__REF); __REF = nil; } }
  • 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; }
  • 释放一个对象
#define SAFE_DELETE(P) if(P) { [P release], P = nil; }
#define SAFE_RELEASE(x) [x release];x=nil

  • 图片相关

    //读取本地图片
#define LOADIMAGE(file,ext) [UIImage imageWithContentsOfFile:［NSBundle mainBundle]pathForResource:file ofType:ext］
//定义UIImage对象
#define IMAGE(A) [UIImage imageWithContentsOfFile:［NSBundle mainBundle] pathForResource:A ofType:nil］
//定义UIImage对象
#define ImageNamed(_pointer) [UIImage imageNamed:[UIUtil imageName:_pointer］

  • 颜色相关

    • rgb颜色转换（16进制->10进制） 
      #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]
    • 带有RGBA的颜色设置 
      #define COLOR(R, G, B, A) [UIColor colorWithRed:R/255.0 green:G/255.0 blue:B/255.0 alpha:A]
    • 设置随机颜色 
      #define LRRandomColor [UIColor colorWithRed:arc4random_uniform(256)/255.0 green:arc4random_uniform(256)/255.0 blue:arc4random_uniform(256)/255.0 alpha:1.0]
    • 获取RGB颜色 
      #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)]

  • 方正黑体简体字体定义

    #define FONT(F) [UIFont fontWithName:@"FZHTJW--GB1-0" size:F]
  • 网址相关 
    • 定义一个API 
      #define APIURL @"http://xxxxx/"
    • 登录API 
      #define APILogin [APIURL stringByAppendingString:@"Login"]
  • 设置View的tag属性 
    #define VIEWWITHTAG(_OBJECT, _TAG) [_OBJECT viewWithTag : _TAG]
  • 语言/国际化相关
    • 获取当前语言 
      #define LRCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])
    • 程序的本地化,引用国际化的文件 
      #define MyLocal(x, ...) NSLocalizedString(x, nil)
  • 线程 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)
  • 沙盒目录文件 
    //获取temp
#define kPathTemp NSTemporaryDirectory()
//获取沙盒 Document
#define kPathDocument [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject]
//获取沙盒 Cache
#define kPathCache [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) firstObject]
  • NSUserDefaults 实例化 
    #define USER_DEFAULT [NSUserDefaults standardUserDefaults]

  • 由角度获取弧度 ,由弧度获取角度

    #define degreesToRadian(x) (M_PI * (x) / 180.0)
#define radianToDegrees(radian) (radian*180.0)/(M_PI)

  • 单例化一个类

#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; \
}
posted @ 2017-06-19 18:23  Leo-Wmw  阅读(258)  评论(0)  编辑  收藏  举报