//
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// ZYSideSlipFilterManger.m
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// MIduo
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//
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// Created by 重庆迈尖科技有限公司 on 2018/8/7.
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// Copyright © 2018年 yeshi. All rights reserved.
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//
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#import "ZYSideSlipFilterManger.h"
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ZYSideSlipFilterManger *manager = nil;
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@implementation ZYSideSlipFilterManger
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+ (instancetype)shareinstance{
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if(!manager){
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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manager = [ZYSideSlipFilterManger new];
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});
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}
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return manager;
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}
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// 防止使用alloc开辟空间
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+ (instancetype)allocWithZone:(struct _NSZone *)zone{
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if(!manager){
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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manager = [super allocWithZone:zone];
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});
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}
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return manager;
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}
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- (id)copyWithZone:(NSZone *)zone {
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return [ZYSideSlipFilterManger shareinstance];
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}
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- (id)mutableCopyWithZone:(NSZone *)zone{
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return [ZYSideSlipFilterManger shareinstance];
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}
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// 使用同步锁保证init创建唯一单例 ( 与once效果相同 )
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- (instancetype)init {
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@synchronized(self) {
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self = [super init];
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}
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return self;
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}
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@end
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