Um...  it sounds like you are just doing a lot of work in the main thread,
and getting an ANR dialog.  Don't do that. :)  If you have lots of work to
do, do it in a background thread.  All Service callbacks happen on the main
thread.

On Fri, Mar 13, 2009 at 11:16 AM, Bob <[email protected]> wrote:

>
> Thanks, I'll look more at the logs for crash issue.  But regardless of
> the crash, am I correct in thinking that if I call a service it should
> do its processing in the background and the main UI thread should
> immediately update?  For this does it matter whether I start the
> service from a background thread or not?  The crash doesn't occur for
> a while into the processing but in the mean time my UI is not
> progressing.
>
> On Mar 13, 11:03 am, Dianne Hackborn <[email protected]> wrote:
> > At the very least, you should include (and look at!) the stack crawl of
> the
> > crash.  That will usually tell you all you need to know about why it
> > crashed.  The stack crawl is in the log.
> >
> >
> >
> > On Fri, Mar 13, 2009 at 9:39 AM, Bob <[email protected]> wrote:
> >
> > > Thanks for your quick response.  It doesn't access or modify any
> > > views.  It accesses the context to read in some raw resources and
> > > writes to the sqllite database also via context.
> >
> > > On Mar 13, 9:32 am, Streets Of Boston <[email protected]> wrote:
> > > > Hi Bob,
> >
> > > > Your code snippet is not enough to give you some more info.
> > > > E.g. how does backgroundRefresh2 looks like (it public void run()
> > > > implementation).
> >
> > > > Based on its name 'backgroundRefresh2': does it access View-s and
> > > > modify these view (e.g. update text-view, images, etc.)?
> > > > If so, that may explain your crash. You should not access any View
> (or
> > > > subclass of View) in any other thread than your main message-
> > > > dispatching thread (i.e. the thread on which your onCreate/onDestroy/
> > > > onPause/onResume/on<anything> is called).
> >
> > > > On Mar 13, 11:05 am, Bob <[email protected]> wrote:
> >
> > > > > Hi,
> > > > > I have moved some intensive processing from my main thread to a
> > > > > service.  My UI is hanging and then crashing when I start the
> service,
> > > > > even if I put the service start in a new thread started via
> >
> > > > >  Thread updateThread = new Thread(null, backgroundRefresh2,
> > > > > "new_thread");
> > > > >                   updateThread.start();
> >
> > > > > What am I doing wrong?  Also, it seems like the cause of the
> eventual
> > > > > crash in the service/worker thread doesn't show up in LogCat.
> >
> > > > > Thanks,
> > > > > Bob
> >
> > --
> > 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.  All such questions should be posted on public
> > forums, where I and others can see and answer them.
> >
>


-- 
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.  All such questions should be posted on public
forums, where I and others can see and answer them.

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