CODEWITHSUNDEEP
android
Wei Jia
Wei Jia

Reputation: 168

Does android app update change the UID?

App UID is determined by the package manager, if i take an update version app from playstore, does it necessarily change the app UID?

Upvotes: 3

Views: 958

Answers (1)

CommonsWare
CommonsWare

Reputation: 1006584

Normally the Linux UID assigned to your app does not change after an upgrade to your app.

One exception is if you choose to alter the android:sharedUserId attribute. Once an app is installed, if you change the android:sharedUserId attribute (including giving it a value where you did not have one before), the app will get a new Linux UID... but your files will be owned by the old UID. This is why I strongly encourage developers to not use android:sharedUserId.

Upvotes: 5

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