I agree you should use a service. But for optimization, i would use this method.
You should have a call to the service to query if the service is still busy. If so, show a progress dialog and start listening to the service to know when it no longer is busy (callback from the service into your app) On May 27, 4:07 pm, Robert Green <rbgrn....@gmail.com> wrote: > I just looked at it. > > 1) They state that it is only an optimization and that you are not to > rely on the method being called. > > 2) My design is a little too complex to use that elegantly. I do > network calls from multiple activities and some dialogs on those > activities, which need to chain to other actions upon completion. > > I'm learning about Services right now and I think that if I could have > a network service that I can register a specific callback with, like a > "User Updated" callback, it would work really well. When the service > finishes updating a user, it simply notifies the user updated > callback. It won't care if it was the original activity/dialog or a > new one. > > Does that sound feasible? > > On May 27, 2:22 pm, Streets Of Boston <flyingdutc...@gmail.com> wrote: > > > > > Take a look at the method onRetainNonConfigurationInstance() of the > > Activity class. :-) > > >http://developer.android.com/reference/android/app/Activity.html#onRe...() > > > On May 27, 2:01 pm, Robert Green <rbgrn....@gmail.com> wrote: > > > > I have an app that communicates with a server. While it is > > > communicating, it shows a progress dialog. The way this actually > > > works is that I have a class that I call my NetworkGateway. Each > > > method takes a Handler as a callback so that the gateway can send back > > > the response as a bundle when it has finished. > > > > Right now when someone changes orientation while a network operation > > > is occuring, the activity doesn't know that a thread is running the > > > network code and then the callback might be invalid. > > > > What's the right way to do this? I want to make it so that after the > > > orientation switch, the activity can check something to see if a > > > network operation is running and if so, display the progress dialog > > > again and wait for the callback, or set itself as the callback handler > > > now, invalidating the old one. > > > > My first guess is that this is exactly the kind of thing services were > > > designed for, but I'd like specifics if anyone can supply them. > > > > Thanks!- 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 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 -~----------~----~----~----~------~----~------~--~---
