Re: [android-developers] Re: Froyo -- How to detect that my application has been killed?

Um yeah the check for process priority does let it kill service processes (not visible or foreground service processes though).  Whoops.  I'll fix that.

That said, the service *does* restart like it always did, and I have confirmed it does.  That code path hasn't changed at all.  So basically the behavior is still like it was pre-2.2, except there are still some processes that can unintentionally be killed.

On Fri, Jul 30, 2010 at 10:15 AM, tomei.ningen45@gmail.com <tomei.ningen45@gmail.com> wrote:

Dianne, here's the reproduction step on Froyo:

[1] Run on Froyo - start ApiDemos, start the RemoveService sample. You
will now see two processes
   com.example.android.apis
   com.example.android.apis:remote

[2] You will notice that "Sample Remote Service" appears on status
bar.

[3] write an app with KILL_BACKGROUND_PROCESSES permission. Call


ActivityManager.killBackgroundProcesses("com.example.android.apis");

[4] Both processes created at step [1] are killed.

[5] RemoveService is never restarted, even though you see something
like

W/ActivityManager( 2426): Scheduling restart of crashed service
com.example.android.apis/.app.RemoteService in 20000ms

[6] "Sample Remote Service" message still stays on status bar. This is
because StatusBarService expects a ACTION_PACKAGE_RESTARTED broadcast,
but
this braodcast is never delivered.

What's the best way to handle this -- we need to clean up some
resources if
the app process is killed.

Thanks!

On Jul 29, 8:15 pm, Dianne Hackborn <hack...@android.com> wrote:
> Applications can't kill services with this.  They can only kill background
> processes, which the OOM killer is free to kill at any time anyway.
>

> On Thu, Jul 29, 2010 at 6:37 PM, tomei.ninge...@gmail.com <

>
>
>
>
>
>
>
> tomei.ninge...@gmail.com> wrote:
> > On Froyo, we found that some new "Task Manager" apps are now using the
> > ActivityManager.killBackgroundProcesses() to kill apps. When this
> > happens, Intent.ACTION_PACKAGE_RESTARTED is no longer fired.
>
> > How can I find out that my application has been killed?
>
> > I tried to start a service, and I do see this message printed in
> > logcat:
>
> > W/ActivityManager( 2426): Scheduling restart of crashed service
> > com.example.android.apis/.app.RemoteService in 20000ms
>
> > However, the service is never restarted as advertised, if the app is
> > killed using the killBackgroundProcesses API.
>
> > (If I go into adb shell and kill the service process, the service will
> > indeed be restarted ...)
>
> > This looks like a bug anyway, because the notification created by the
> > app is no longer removed like in eclair (the StatusBarService, and a
> > bunch of other system services, depend on the
> > Intent.ACTION_PACKAGE_RESTARTED broadcast).
>
> > Thanks
>
> > --
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> --
> Dianne Hackborn
> Android framework engineer

> hack...@android.com

>
> 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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--
Dianne Hackborn
Android framework engineer
hackbod@android.com

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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