Hi, suppose an activity start a background service in the oncreate method and now user switch to other activity and when my app is working in the background then system kill my activity life-cycle but when i return to my activity then system call the oncreate method of my application and then android system again start a new service again even the last one working in the background..
On Thursday, August 8, 2013 4:53:27 AM UTC-8, Daniele Segato wrote: > > On 08/08/2013 01:40 PM, ashish wrote: > > I read about services in Android very carefully, but I didn't find any > > valid reasons to use it. E.g. > > > > 1. > > > > By default services run in the main thread, which most of the > > applications don't want. > > > > 2. > > > > A service can run on a seperate thread if it spawns it own thread. > > But if a service runs on a seprate thread, then the method > > |stopService(new Intent(getApplicationContext(), > > MyService.class));| does not stop the running service. Again this is > > a problem. > > > > If we want to do some background operations, then I think threads are > > better than services. Am I right? > > You've been already told by others that Services should be used to > MANAGE separate thread(s). > > The important part is that while an application is used to interact with > the user a Service has no UI and can run in background. > > And with "background" I don't necessary mean off-the-main-thread. > I mean that they can run even if the application (activities) is not > used at the time. > > Services have a simpler life cycle in respect to activities and they are > not influenced or killed by the framework by changes in configurations. > > Furthermore the framework will kill activities before starting to kill > services. And if the framework decide to kill your service you can > specify what you want to do with the request you received (drop it, ask > the framework to re-do it, etc...) > > Services are a main component of the system and it is good practice to, > for example, use them to update underling data (better if using a > SyncAdapter) and manage remote calls. > > regards, > Daniele Segato > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
