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38 lines
745 B
38 lines
745 B
1 year ago
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//
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// SGQRCodeLog.m
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// SGQRCodeExample
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//
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// Created by kingsic on 2022/7/15.
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// Copyright © 2022 kingsic. All rights reserved.
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//
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#import "SGQRCodeLog.h"
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static SGQRCodeLog *singleton = nil;
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@implementation SGQRCodeLog
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+ (instancetype)sharedQRCodeLog {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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if (singleton == nil) {
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singleton = [[super allocWithZone:NULL] init];
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}
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});
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return singleton;
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}
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+ (instancetype)allocWithZone:(struct _NSZone *)zone {
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return [[self class] sharedQRCodeLog];
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}
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- (id)copyWithZone:(NSZone *)zone {
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return [[self class] sharedQRCodeLog];
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}
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- (id)mutableCopyWithZone:(NSZone *)zone {
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return [[self class] sharedQRCodeLog];
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}
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@end
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