blocks|key|275816|text|由于iOS+7，因此不再可能获得任何唯一的设备标识符。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|275817|你的选择是：|275818|创建您自己的唯一ID和把它保存在钥匙链中。|unordered-list-item|offset|length|275819|使用供应商ID，如果同一厂商的所有应用程序都从设备中删除，它将被重置。|275820|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/7273014/ios-unique-user-identifier/8677177#8677177|1|https://developer.apple.com/library/ios/documentation/uikit/reference/UIDevice_Class/Reference/UIDevice.html#//apple_ref/doc/uid/TP40006902-CH3-SW49^0|0|0|B|9|0|0|2|5|1|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@$G|X|H|Y|1|Z]]|A|$]]|$1|I|3|J|5|F|7|10|8|@]|9|@$G|11|H|12|1|13]]|A|$]]|$1|K|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]|S|$5|N|O|P|A|$Q|T]]]]

Since iOS 7 it is no longer possible to get any unique device identifiers.

Your options are:

<ul>
<li>create your own unique ID and <a href="https://stackoverflow.com/questions/7273014/ios-unique-user-identifier/8677177#8677177">save it in the keychain</a>.</li>
<li>use the <a href="https://developer.apple.com/library/ios/documentation/uikit/reference/UIDevice_Class/Reference/UIDevice.html#//apple_ref/doc/uid/TP40006902-CH3-SW49" rel="noreferrer">vendor ID</a>, which will be reset if all the app by the same vendor are removed from the device. </li>
</ul>

blocks|key|275835|text|UIDevice+uniqueIdentifier；在ios+5和更高版本中被废弃。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|275836|您可以使用此NSString+*udid+=+[UIDevice+currentDevice+uniqueIdentifier]获取供应商标识符；|275837|并将其存储在密钥链中，并在以后使用。|275838|你也可以检查一下NSUUID，2)CFUUID|275839|您将在这里获得详细描述，ios中唯一的设备标识|offset|length|275840|entityMap|0|LINK|mutability|MUTABLE|url|https://possiblemobile.com/2013/04/unique-identifiers/^0|0|0|0|0|C|B|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@$J|Y|K|Z|1|10]]|A|$]]|$1|L|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S]]]]

[UIDevice uniqueIdentifier]; is deprecated in ios 5 and above.

You can get identifier for vendor using this 
NSString *udid = [[UIDevice currentDevice] uniqueIdentifier];

and store this in keychain and use later on.

Also you can check for 
1) NSUUID
2)CFUUID

you will get detail description here <a href="https://possiblemobile.com/2013/04/unique-identifiers/" rel="nofollow">Unique device identification in ios</a>

blocks|key|2488282|text|在目标c中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2488283|NSString+*uniqueIdentifier+=+[[[UIDevice+currentDevice]+identifierForVendor]+UUIDString];|code-block|syntax|javascript|2488284|斯威夫特|2488285|+var+uniqueId=UIDevice.currentDevice().identifierForVendor.UUIDString+as+String
+println("Your+device+identifires+=>\(uniqueId)")|2488286|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

In Objective c

<pre><code>NSString *uniqueIdentifier = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
</code></pre>

In Swift

<pre><code> var uniqueId=UIDevice.currentDevice().identifierForVendor.UUIDString as String
 println("Your device identifires =&gt;\(uniqueId)")
</code></pre>

blocks|key|276925|text|不幸的是，当您卸载应用程序时，identifierForVendor会发生更改，以确保它不会更改，并将其保存在密钥链中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|276926|我使用了pod+'SSKeychain‘主页：https://github.com/soffes/sskeychain|offset|length|276927|这是代码|276928|+%2B+(NSString+*)getDeviceId+{
+++++++++++NSString+*appName=[[[NSBundle+mainBundle]+infoDictionary]+objectForKey:(NSString*)kCFBundleNameKey];
+++++++++++NSString+*strApplicationUUID+=+[SSKeychain+passwordForService:appName+account:@"MY_KEY"];
+++++++++++if+(strApplicationUUID+==+nil)+{
+++++++++++++++strApplicationUUID++=+[[[UIDevice+currentDevice]+identifierForVendor]+UUIDString];
+++++++++++++++[SSKeychain+setPassword:strApplicationUUID+forService:appName+account:@"MY_KEY"];
++++++++++++}
++++return+strApplicationUUID;
}|code-block|syntax|javascript|276929|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/soffes/sskeychain^0|0|N|10|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@$D|W|E|X|1|Y]]|A|$]]|$1|F|3|G|5|6|7|Z|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

Unfortunately identifierForVendor changes when you uninstall your application so to guarantee that the it will not change save it in the keychain 

I used pod 'SSKeychain' Homepage: <a href="https://github.com/soffes/sskeychain" rel="noreferrer">https://github.com/soffes/sskeychain</a> 

Here is the code

<pre><code> + (NSString *)getDeviceId {
 NSString *appName=[[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString*)kCFBundleNameKey];
 NSString *strApplicationUUID = [SSKeychain passwordForService:appName account:@"MY_KEY"];
 if (strApplicationUUID == nil) {
 strApplicationUUID = [[[UIDevice currentDevice] identifierForVendor] UUIDString];
 [SSKeychain setPassword:strApplicationUUID forService:appName account:@"MY_KEY"];
 }
 return strApplicationUUID;
}
</code></pre>

blocks|key|275888|text|如果您只尝试识别一个设备一次，即估计唯一用户的数量，那么我建议使用ASIdentifierManager的“ASIdentifierManager”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|275889|苹果博士|offset|length|275890|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/library/ios/documentation/AdSupport/Reference/ASIdentifierManager_Ref/index.html#//apple_ref/occ/instp/ASIdentifierManager/advertisingTrackingEnabled^0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

If you're trying to identify a device only once i.e., to estimating the number of unique users then I suggest using "advertisingIdentifier" of ASIdentifierManager.

<a href="https://developer.apple.com/library/ios/documentation/AdSupport/Reference/ASIdentifierManager_Ref/index.html#//apple_ref/occ/instp/ASIdentifierManager/advertisingTrackingEnabled" rel="nofollow">Apple Doc</a>

blocks|key|880786|text|现在，在iOS+11.0%2B中，苹果推出了一种名为DeviceCheck+API的新API，开发者可以用它来唯一地识别设备。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|880787|正如文献资料中提到的|880788|使用DeviceCheck+API，结合服务器到服务器的API，您可以在每个设备上设置和查询两位数据，同时保持用户隐私。您可以使用此数据识别已经利用您提供的促销优惠的设备，或者标记您已确定为欺诈性的设备。DeviceCheck+app还允许您验证您收到的令牌来自一个包含您的应用程序的真实的苹果设备。|blockquote|880789|另外，从24分钟开始查看以下WWDC17视频：https://developer.apple.com/videos/play/wwdc2017/702/|880790|编辑：|880791|关于这个Device+Check主题的详细教程可以找到这里。|880792|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/devicecheck|1|https://developer.apple.com/videos/play/wwdc2017/702/|2|https://fluffy.es/devicecheck-tutorial/?utm_campaign=AppCoda%2520Weekly&utm_medium=email&utm_source=Revue%2520newsletter^0|4|9|O|F|0|2|4|0|0|0|N|1H|1|0|0|3|0|4|C|R|2|2|0^^$0|@$1|2|3|4|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|18|8|@]|E|@$9|19|A|1A|1|1B]]|F|$]]|$1|I|3|J|5|K|7|1C|8|@]|E|@]|F|$]]|$1|L|3|M|5|6|7|1D|8|@]|E|@$9|1E|A|1F|1|1G]]|F|$]]|$1|N|3|O|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|E|@]|F|$]]|$1|P|3|Q|5|6|7|1K|8|@$9|1L|A|1M|B|D]]|E|@$9|1N|A|1O|1|1P]]|F|$]]|$1|R|3|-4|5|6|7|1Q|8|@]|E|@]|F|$]]]|S|$T|$5|U|V|W|F|$X|Y]]|Z|$5|U|V|W|F|$X|10]]|11|$5|U|V|W|F|$X|12]]]]

Now it's possible in iOS 11.0+, Apple has introduced a new API called <code>DeviceCheck API</code> with which developers can uniquely identify a device.

As mentioned in <a href="https://developer.apple.com/documentation/devicecheck" rel="nofollow noreferrer">the documentation</a>:

<blockquote>
 Using the DeviceCheck APIs, in combination with server-to-server APIs,
 you can set and query two bits of data per device, while maintaining
 user privacy. You might use this data to identify devices that have
 already taken advantage of a promotional offer that you provide, or to
 flag a device that you have determined to be fraudulent. The
 DeviceCheck APIs also let you verify that the token you receive comes
 from an authentic Apple device that includes your app.
</blockquote>

Also, check out the following WWDC17 video starting at 24 min:
<a href="https://developer.apple.com/videos/play/wwdc2017/702/" rel="nofollow noreferrer">https://developer.apple.com/videos/play/wwdc2017/702/</a>

<hr>

EDIT:

A thoroughly detailed tutorial on this <code>Device Check</code> topic can be found <a href="https://fluffy.es/devicecheck-tutorial/?utm_campaign=AppCoda%20Weekly&amp;utm_medium=email&amp;utm_source=Revue%20newsletter" rel="nofollow noreferrer">here</a>.

Looking for your help

I am facing a problem while getting Device Identifier. Actually I am using a UIDevice+IdentifierAddition.h, NSString+MD5Addition.h classes to get Identifier, but its return same identifier for all my devices i.e. iPhone 4s (iOS 7.1) &amp; iPhone 5 (iOS 7.1.1).

Can any one have any solution for this problem. because I want a something unique for device specific. its my app requirement.

Important: I want to submit this app on app store, So please, answer must be as per the guidelines

Unique Identification of iOS device for iOS 7.0 and above

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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寻求你的帮助在获取设备标识符时，我面临一个问题。实际上，我使用一个UIDevice+IdentifierAddition.h，NSString+MD5Addition.h类来获取标识符，但是它的为我的所有设备返回相同的标识符--即iPhone 4s (iOS 7.1)和iPhone 5 (iOS 7.1.1)。有谁能解...

问iOS 7.0及以上设备的唯一识别
EN

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问iOS 7.0及以上设备的唯一识别EN