Thanks for the links. Your code clarifies things a lot. Thinking about Handler/HandlerThread made me wonder about something... Activity class provides a method called runOnUIThread(), which seems to me a very straight-forward way to execute commands emanating from other threads, on UI thread. Is there any idisadvantage of using this instead of Handler or HandlerThread?
On May 27, 11:26 am, Kostya Vasilyev <[email protected]> wrote: > Agreed. > > If the service is local, you can just direct Java method calls to > communicate, either your own scheme, or these guys: > > http://developer.android.com/reference/java/util/Observable.html > > But a direct Java method call won't switch threads for you. > > For posting an event to the UI thread, your options are limited, because the > UI thread's loop is already implemented inside the Android framework. > Handler is one of those options, and you might as well use it in the > opposite direction as well, going from the UI thread to the worker thread. > > An nice property of Handler is that it works with Message objects, which can > contain useful payload, including a plain Java object (no need to > serlialize, etc., as long as you're within the same process). > > Here is a HandlerThread snippet from my current project: > > http://pastebin.com/kpSFH6Ke > > Clients call submitWorkItem on the UI thread, which processes them one by > one in onWorkItem(), on the worker thread. > > -- Kostya > > 2011/5/27 Streets Of Boston <[email protected]> > > > Yes, that's possible. You'd have to take care of the threading issues, > > though (avoiding race conditions or deadlocks, etc). > > > -- > > 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 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
