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 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
