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59 lines
1.9 KiB
59 lines
1.9 KiB
4 years ago
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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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