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58 lines
1.9 KiB
58 lines
1.9 KiB
// |
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// UUID.m |
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// |
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// Created by Andrew on 2017/8/5. |
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// Copyright © 2017年 Andrew. All rights reserved. |
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// |
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#import "UUID.h" |
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#import "KeyChainStore.h" |
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#define UUID_KEY(bunid) [NSString stringWithFormat:@"cn.property.uuidkey%@",bunid] |
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#define Pasteboard(bunid) [NSString stringWithFormat:@"cn.property.PublicPasteBord%@",bunid] |
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@implementation UUID |
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+ (NSString *)getUUID |
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{ |
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NSString *bunid = [[NSBundle mainBundle]bundleIdentifier]; |
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NSString *strUUID; |
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NSUserDefaults *userDefault = [NSUserDefaults standardUserDefaults]; |
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strUUID = [userDefault objectForKey:UUID_KEY(bunid)]; |
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if (!strUUID) { |
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UIPasteboard *pp = [UIPasteboard generalPasteboard]; |
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NSData *data = [pp valueForPasteboardType:Pasteboard(bunid)]; |
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strUUID = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; |
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if (!strUUID || [strUUID isEqualToString:@""]) { |
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strUUID = (NSString *)[KeyChainStore load:UUID_KEY(bunid)]; |
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if (strUUID) { |
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[userDefault setObject:strUUID forKey:UUID_KEY(bunid)]; |
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[userDefault synchronize]; |
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} |
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} else { |
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[userDefault setObject:strUUID forKey:UUID_KEY(bunid)]; |
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[userDefault synchronize]; |
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} |
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} |
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//首次执行该方法时，uuid为空 |
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if ([strUUID isEqualToString:@""] || !strUUID) { |
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//生成一个uuid的方法 |
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CFUUIDRef uuidRef = CFUUIDCreate(kCFAllocatorDefault); |
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strUUID = (NSString *)CFBridgingRelease(CFUUIDCreateString(kCFAllocatorDefault,uuidRef)); |
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//将该uuid保存到keychain |
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[KeyChainStore save:UUID_KEY(bunid) data:strUUID]; |
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[userDefault setObject:strUUID forKey:UUID_KEY(bunid)]; |
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[userDefault synchronize]; |
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UIPasteboard *p = [UIPasteboard generalPasteboard]; |
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[p setValue:strUUID forPasteboardType:Pasteboard(bunid)]; |
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CFRelease(uuidRef); |
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} |
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return strUUID; |
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} |
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@end
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