I recommend people avoid shared user IDs.  It is a hole you can never escape
once you are in it.

It is true that you can't disable the components of another app that has a
different uid.  However, you could have a broadcast receiver in the other
app that when invoked disables the appropriate component in that app.  So
the main app can just send a broadcast to the other app to disable its
component.  If you want to be secure, you can define a signature-only
permission that the sender must hold.  (Your .apks of course are good being
signed with the same cert.)

On Thu, Aug 18, 2011 at 12:23 AM, Jeremy Lakeman
<[email protected]>wrote:

> If they are signed by the same key, both applications should be able to use
> the same user id, data folder and process space.
>
> I'm thinking of doing something similar, where the main application can
> download and install additional apk's directly from our web site. But I
> haven't got around to experimenting with it yet.
>
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-- 
Dianne Hackborn
Android framework engineer
[email protected]

Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails.  All such
questions should be posted on public forums, where I and others can see and
answer them.

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