iOS常用宏定义.docx

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 ( \ :连接行标志，连接上下两行 ) #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]系统版本号 #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_INTERFA