擷取iOS裝置UUID

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擷取到UUID，然後把UUID儲存到KeyChain裡面。

這樣以後即使卸載APP，也可以從KeyChain中讀取回來。

但是刷機或重裝系統後uuid還是會改變。

代碼採用CFUUID+KeyChain的實現方式：

1.建立KeyChain管理類

@implementation ZZKeyChainManager+ (NSMutableDictionary *)getKeychainQuery:(NSString *)service {    return [NSMutableDictionary dictionaryWithObjectsAndKeys:            (__bridge_transfer id)kSecClassGenericPassword,(__bridge_transfer id)kSecClass,            service, (__bridge_transfer id)kSecAttrService,            service, (__bridge_transfer id)kSecAttrAccount,            (__bridge_transfer id)kSecAttrAccessibleAfterFirstUnlock,(__bridge_transfer id)kSecAttrAccessible,            nil];}+ (void)save:(NSString *)service data:(id)data {    //Get search dictionary    NSMutableDictionary *keychainQuery = [self getKeychainQuery:service];    //Delete old item before add new item    SecItemDelete((__bridge_retained CFDictionaryRef)keychainQuery);    //Add new object to search dictionary(Attention:the data format)    [keychainQuery setObject:[NSKeyedArchiver archivedDataWithRootObject:data] forKey:(__bridge_transfer id)kSecValueData];    //Add item to keychain with the search dictionary    SecItemAdd((__bridge_retained CFDictionaryRef)keychainQuery, NULL);}+ (id)load:(NSString *)service {    id ret = nil;    NSMutableDictionary *keychainQuery = [self getKeychainQuery:service];    //Configure the search setting    [keychainQuery setObject:(id)kCFBooleanTrue forKey:(__bridge_transfer id)kSecReturnData];    [keychainQuery setObject:(__bridge_transfer id)kSecMatchLimitOne forKey:(__bridge_transfer id)kSecMatchLimit];    CFDataRef keyData = NULL;    if (SecItemCopyMatching((__bridge_retained CFDictionaryRef)keychainQuery, (CFTypeRef *)&keyData) == noErr) {        @try {            ret = [NSKeyedUnarchiver unarchiveObjectWithData:(__bridge_transfer NSData *)keyData];        } @catch (NSException *e) {            NSLog(@"Unarchive of %@ failed: %@", service, e);        } @finally {        }    }    return ret;}+ (void)deleteUUID:(NSString *)service {    NSMutableDictionary *keychainQuery = [self getKeychainQuery:service];    SecItemDelete((__bridge_retained CFDictionaryRef)keychainQuery);}@end

2.建立UUID管理類

#import "ZZUUIDManager.h"@implementation ZZUUIDManagerstatic NSString * const KEY_IN_KEYCHAIN = @"com.zzuuid.uuid";+(void)saveUUID:(NSString *)uuid{    if (uuid && uuid.length > 0) {        [ZZKeyChainManager save:KEY_IN_KEYCHAIN data:uuid];    }}+(NSString *)getUUID{    NSString *getUDIDInKeychain = (NSString *)[ZZKeyChainManager load:KEY_IN_KEYCHAIN];    if (!getUDIDInKeychain || [getUDIDInKeychain isEqualToString:@""] || [getUDIDInKeychain isKindOfClass:[NSNull class]]) {        CFUUIDRef puuid = CFUUIDCreate(nil);        CFStringRef uuidString = CFUUIDCreateString(nil, puuid );        NSString * result = (NSString *)CFBridgingRelease(CFStringCreateCopy(NULL, uuidString));        CFRelease(puuid);        CFRelease(uuidString);        getUDIDInKeychain = result;               [ZZKeyChainManager save:KEY_IN_KEYCHAIN data:result];        getUDIDInKeychain = (NSString *)[ZZKeyChainManager load:KEY_IN_KEYCHAIN];    }    return getUDIDInKeychain;}+(void)deleteUUID{    [ZZKeyChainManager deleteUUID:KEY_IN_KEYCHAIN];}

 3.匯入#import "ZZUUIDManager.h"

直接擷取

 NSLog(@"---->>uuid:%@",[ZZUUIDManager getUUID]);

 

參考：iOS擷取UUID

 

擷取iOS裝置UUID