Create System Application

Question

What I should to do to create a system app (to obtain rights to use android:sharedUserId=\"android.uid.system\"in manifest file without receiving an error from

Answer 1

What I should to do to create a system app

There are two types of system apps:

• Apps installed on the system partition, which can be accomplished by users with root privileges

• Apps signed by the same signing key that signed the firmware

to obtain rights to use android:sharedUserId="android.uid.system"

That definitely would require your app to be signed by the same signing key that signed the firmware. That's true for any android:sharedUserId.

But some guys edit stock apps, prepare zip file which user can update system apps by recovery.

You are welcome to provide any evidence that what they do somehow involves android:sharedUserId="android.uid.system".