Can I use the thread.join() mechanism? Basically, in the onDestroy() method of the service, I would send a message to the background thread and call join on the thread. The background thread would destroy it self after proper cleanup. But, what method should I use to exit the thread. Please note the background thread uses a looper to handle messages from the main thread.
Or, pl. suggest some other method of implementing the above behavior. On May 27, 11:31 am, [email protected] wrote: > Android may kill the process and thus the service running in the > process, onceonDestroy() returns (after sending a message to the > worker thread). > But how will I make sure that the service has completed it's clean up > operations (ex. saving some data on to some storage, etc...), if any? > > The main thread nevers gets blocked in any other scenario exceptonDestroy(). > Do you have any other mechanism to achieve this behavior in the > platform? > > On May 27, 2:23 am, Dianne Hackborn <[email protected]> wrote: > > > > > Blocking inonDestroy() waiting for the background thread to complete > > basically defeats the purpose of doing work in a background thread. > > > On Tue, May 26, 2009 at 7:09 AM, Gautam > > <[email protected]>wrote: > > > > Hi, > > > > I'm implementing a service that contains a thread to handle all > > > time consuming operation. My core service logic is in a different > > > thread than the ui or main thread. According to the Android document, > > > when the OS plans to free some system resource, it will callonDestroy > > > () on the service and only whenonDestroy() returns it will kill the > > > process hosting the service, thus giving opportunity to the service to > > > cleanup. > > > > Now, whenonDestroy() is called, I want to send a message to my > > > service thread to do the necessary cleanup. Only when the service > > > thread acknowledges that the cleanup or shutdown is complete,onDestroy > > > () should return. > > > I could find a way to send asynchronous messages to threads and the > > > corresponding processing of the messages, but not able to figure out > > > how I need to implementonDestroy(), such that it would send a message > > > to the service thread and should wait for a result, before returning. > > > > Appreciate if someone can comment on my understanding ofonDestroy > > > () and provide some solution to the above problem. > > > > Thanks and Regards, > > > Gautam. > > > -- > > 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, and so won't reply to such e-mails. All such > > questions should be posted on public forums, where I and others can see and > > answer them.- Hide quoted text - > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
