iOS 宏~单例封装宏

//联系人:石虎  QQ: 1224614774 昵称:嗡嘛呢叭咪哄

/**

1.SH前缀是作者名称简称"SH".

2.宏定义直接拷贝到pch文件中即可.

*/

一、单例使用

1.使用方法.h

#import <Foundation/Foundation.h>

@interface MineAuthentication :NSObject

SHSingleInstance_H_(AuthenticationManager )

@end

2.使用方法.m

#import "SHMineAuthentication.h"

@interface MineAuthentication ()

@end

@implementation MineAuthentication

SHSingleInstance_M_(AuthenticationManager )

@end

二、单例实现和定义

//1.单例实现和定义宏--方便.h文件使用

#define SHSingleInstance_H_(name) \

+ (instancetype)shared##name;

//2.单例实现和定义宏--方便.m文件使用

#define SHSingleInstance_M_(name) \

static id _instance = nil; \

+ (instancetype)shared##name \

{ \

static dispatch_once_t onceToken; \

dispatch_once(&onceToken, ^{ \

if (_instance == nil) \

{ \

_instance = [[self alloc] init]; \

} \

}); \

return _instance; \

} \

\

+ (instancetype)allocWithZone:(struct _NSZone *)zone \

{ \

static dispatch_once_t onceToken; \

dispatch_once(&onceToken, ^{ \

if (_instance == nil) \

{ \

_instance = [super allocWithZone:zone]; \

} \

}); \

return _instance; \

} \

\

+ (id)copyWithZone:(struct _NSZone *)zone \

{ \

return _instance; \

} \

+ (id)mutableCopyWithZone:(struct _NSZone *)zone \

{ \

return _instance; \

}

三、单例调用

   [MineAuthenticationsharedAuthenticationManager];

谢谢!!!