UUID是唯一的吗?苹果手机 [英] UUID is unique? iphone

问题描述

我可以将UUID保存在外部数据库中，以检查用户是否仅从iPhone一次发布了他的消息吗?我进行了搜索，发现删除该应用程序后无法保存NSString值.我说的对吗?

Can i save an UUID in an external database in order to check if the user posts his message only one time from his iphone? I have searched and i have found that there is no way to save a NSString value after the app has been deleted. Am i right?

推荐答案

删除应用程序后，其所有数据也将被删除.您可以将UUID存储在远程服务器上，但是无论您的应用程序被删除并重新安装多少次，iPhone的UUID都是相同的.

When an app is deleted, all of its data is deleted too. You could store the UUID on a remote server, however the iPhone's UUID will be the same regardless of how many times your app is deleted and reinstalled.

请注意，这可能是一个安全问题，因为您的远程服务器可能会识别出已擦除并出售的设备.

Note that this can be a security concern as your remote server may recognize a device which has been wiped and sold.

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