iOS

• 以下直接复制,在此不逐条解释
• tost框架挺好用 https://github.com/scalessec/Toast

/// 回收键盘
#define KEND_EDITING [[[UIApplication sharedApplication] keyWindow] endEditing:YES]

/// 弧度转角度
#define KRADIAN_TO_DEGREES(radian) (radian * 180.0) / (M_PI)

/// 角度转弧度
#define KDEGREES_TO_RADIAN(x)      (M_PI * (x) / 180.0)

/// 对象是否为空
#define KOBJ_IS_EMPTY(_object) (_object == nil 
  || [_object isKindOfClass:[NSNull class]] 
  || ([_object respondsToSelector:@selector(length)] && [(NSData *)_object length] == 0) 
  || ([_object respondsToSelector:@selector(count)] && [(NSArray *)_object count] == 0))

///字典是否为空
#define KDIC_IS_EMPTY(dic) (dic == nil || [dic isKindOfClass:[NSNull class]] || dic.allKeys == 0)

/// 数组是否为空
#define KARRAY_IS_EMPTY(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0)

/// 字符串是否为空
#define KSTR_IS_EMPTY(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO )

//带有RGBA的颜色设置
#define KCOLOR_RGBA(R, G, B, A) [UIColor colorWithRed:R/255.0 green:G/255.0 blue:B/255.0 alpha:A]
#define KWHITECOLOR [UIColor whiteColor]
#define KCLEARCOLOR [UIColor clearColor]
#define KREDCOLOR   [UIColor redColor]
#define KBLACKCOLOR [UIColor blackColor]
#define KORANGECOLOR [UIColor orangeColor]
///图片
#define KImageNamed(a) [UIImage imageNamed:(a)]
/** 获取系统版本 */
#define KDEVICE_SYSTEM_VERSION_STRING [[UIDevice currentDevice] systemVersion]
/** 获取系统版本 */
#define KDEVICE_SYSTEM_VERSION_FLOATVALUE  [[[UIDevice currentDevice] systemVersion] floatValue]

/** 通知中心 */
#define KNOTIFACTION_CENTER  [NSNotificationCenter defaultCenter]

/** 偏好 */
#define KUSER_DEFAULT [NSUserDefaults standardUserDefaults]

/** 设备标示 */
#define KUUID ([[[UIDevice currentDevice] identifierForVendor] UUIDString])

/// 获取APP版本号
#define KAPP_VERSION  [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]

/// 设置字体大小
#define KFONT(a)      [UIFont systemFontOfSize:(a)]
/// 设置LED字体样式
#define KFONT_LED(a)  [UIFont fontWithName:@"Georgia-Bold" size:(a)]


/// 获取屏幕尺寸相关
/* 屏幕宽度 */
#define KSCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
/** 屏幕高度 */
#define KSCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)
/** 屏幕bounds */
#define KSCREEN_BOUNDS ([UIScreen mainScreen].bounds)

/// 打印相关
#ifdef DEBUG
#define KLog(format, ...) printf("
[%s] %s [第%d行] %s
", __TIME__, __FUNCTION__, __LINE__, [[NSString stringWithFormat:format, ## __VA_ARGS__] UTF8String]);
#else
#define KLog(format, ...)
#endif


/// 判断屏幕尺寸
/// 4寸
#define KSCREEN_4INCH   (KSCREEN_WIDTH == 320 ? YES : NO)
/// 4.7寸
#define KSCREEN_4_7INCH (KSCREEN_WIDTH == 375 ? YES : NO)
/// 5.5寸
#define KSCREEN_5_5INCH (KSCREEN_WIDTH == 414 ? YES : NO)

#define KVersion [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]
#define KUUID ([[[UIDevice currentDevice] identifierForVendor] UUIDString])
#define KIOS_Version_FloatValue [[[UIDevice currentDevice] systemVersion] floatValue]
#define KIOS_Version_String [[UIDevice currentDevice] systemVersion]
#define KCurrentLanguage ([[NSLocale preferredLanguages] objectAtIndex:0])
//定义UIImage对象
#define KImageNamed(a) [UIImage imageNamed:(a)]

#define kStringIsEmpty(str) ([str isKindOfClass:[NSNull class]] || str == nil || [str length] < 1 ? YES : NO )
#define kArrayIsEmpty(array) (array == nil || [array isKindOfClass:[NSNull class]] || array.count == 0)
#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))