问题描述
这是什么皮棉警告意思是：
What does this Lint warning mean:
应该明确设置机器人：fullBackupContent，以避免备份 在GCM设备特定REGID？
我GOOGLE了，但没有发现任何东西。
I've googled but haven't found anything yet.
推荐答案
的<零件href="https://commonsware.com/blog/2015/06/04/random-musings-m-developer-$p$pview-bad-part-two.html">disturbing 自动备份的应用程序是要控制哪些文件可以备份，通过安卓fullBackupContent 。该属性指向一个XML资源（例如， @ XML / backup_rulez ），即描述了一个白名单或黑名单控制哪些内容进行备份。
Part of the disturbing "auto backup for apps" is the ability to control what files get backed up, via android:fullBackupContent. That attribute points to an XML resource (e.g., @xml/backup_rulez), that describes either a whitelist or a blacklist controlling what gets backed up.
什么皮棉警告警告你没有备份GCM注册ID，作为每个设备，所以它需要被重新生成，如果您的应用程序的数据从备份恢复到新设备。就个人而言，从我的头顶，我不知道在哪里GCM中存储的注册ID。
What the Lint warning is warning you about is not backing up the GCM registration ID, as that is per-device, and so it would need to be re-generated if your app's data is restored from the backup onto a new device. Personally, off the top of my head, I don't know where GCM is storing that registration ID.
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