I believe you are confusing *foreground* from a shell perspective and
Android perspective (foreground activity):

$ ps | grep fg
makes no sense to me.

Have a look to this
question<http://programmers.stackexchange.com/questions/162940/how-do-i-implement-the-bg-and-fg-commands-functionaliity-in-my-custom-unix-s>.
I believe the Original Poster has the same misunderstanding as you here.

Good luck,
Emeric


On Mon, Jul 15, 2013 at 9:41 PM, Boyan Vladinov <boyan.vladi...@gmail.com>wrote:

> Hello,
>
> I know that only visible application is with foreground priority, but when
> I get process list ps | grep fg I see not only the visible app there, but
> many more.
> Is this ok or some I miss something in my configuration?
>
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