Re: [android-developers] Service Vs Thread

Thanks you so much for this clarification ,,exactly I want to make an application that keeps running while the user may went of the main application ,,and I guess Service will be the best candidate for doing that  ,,,,,,,

But what if the application will take much time ,,so should I make a thread that embedded inside it a Service??

On Sun, Jun 13, 2010 at 7:35 PM, Olivier Guilyardi <list@samalyse.com> wrote:

On 06/13/2010 06:23 PM, Olivier Guilyardi wrote:
> On 06/13/2010 03:46 PM, tarek.attia wrote:
>> I have a question what to Use ,Service Or Thread,as both run in the
>> background
>
> There is confusion here, because you are referring to two different meanings of
> the word "background".
>
> A thread, in Java but also in many other languages, allows for parallelization
> within a single program/process, that is: doing several things at the same time.
> If your program has a GUI and needs to do something heavy then you need to do it
> in the "background" and thus within a separate thread, to avoid freezing the UI.
> But this thread will terminate when your program terminates.
>
> A service, in Android, is something which runs even when the application is not
> in the foreground, that is: it continues to run when the user leaves your
> activity and returns to home, or when the phone goes to sleep. If you don't need
> this then you don't need a service.

One thing that I forgot: if you need to have something to keep on running while
the user goes from one of your activities to the other, then you may also need a
service.

But the best would be that you explain what you are trying to do.

> As you may see, "background" here means something quite different, because a
> service never runs in a dedicated /thread/. By default it runs in the main
> application thread, and may optionally run in a separate /process/:
> http://developer.android.com/intl/fr/reference/android/app/Service.html

--
 Olivier

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