On Thu, Aug 11, 2011 at 4:58 PM, Mikael Kuisma <kui...@ping.se> wrote:
> System.exit()?

No, a regular stopSelf() / IntentService should be fine.

> Since Android keeps the DVM around even after I terminate my
> services and activities, I thought it would be a nice place to store the
> state via a singelton object to save flash writes.

As a cache, sure. Don't count on it though -- save your data before
onHandleIntent() returns or you call stopSelf(). Static data members
are *only* to be used as a cache.

>> Users don't like sloppy developers who keep services in RAM for no
>> good reason. Guess what? Users win.
>
> A good reason is to save unnecessary flash writes, wouldn't you say?

Users don't notice "unnecessary flash writes", assuming that they are
done on a background thread. They do notice services running 24x7.
Developers who create such everlasting services have harmed Android's
reputation and spawned the creation of task killers and equivalent
capabilities within the OS itself.

You are welcome to write daemon processes that run forever on your 8GB
RAM Web server. Please don't do it on a 192MB RAM phone.

>> You have to know "how long the next sleep will be", by definition.
>> After all, you have to tell Android when to resume operation of your
>> code, regardless of how you accomplish it (AlarmManager,
>> Thread.sleep(), postDelayed(), etc.).
>
> I don't control the user, I'm sorry.

Then who is calling set() on AlarmManager to trigger your PendingIntent?

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy

Android Training in Oslo: http://bit.ly/fjBo24

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