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37 lines
745 B
37 lines
745 B
// |
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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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