If you notice the api docs say that creating a Handler associates it with the current thread. Probably you create your Handler instance while setting up the UI? That should mean the UI thread is what it uses when you use your Handler. That would explain why you have a frozen UI. Quite often a Handler is used for making changes to the UI, so having it run on the UI thread is the most common use case in my opinion. I think for your example, you don't even need to use a Handler. I'd just utilize a Thread directly.
On Apr 26, 1:24 pm, WildLuka <[EMAIL PROTECTED]> wrote: > hello there, > > I have been trying to provide an answer to one of my own questions, > you can see it > here:http://groups.google.com/group/android-developers/browse_thread/threa... > > so I have created a service an inner class that extends Handler. > here is the class: > > private class ServiceHandler extends Handler { > > Session login(final String username, final String password, > final > ActivityPendingResult result) { > post(new Runnable() { > public void run() { > long id = > Thread.currentThread().getId(); > // login code here. > // creation of Session object > } > }); > return mSession; > } > > public void handleMessage(Message msg) { > int what = msg.what; > switch(msg.what) { > case 0: > ActivityPendingResult result = > (ActivityPendingResult) msg.obj; > result.sendResult(0, null, null); > break; > default: break; > } > } > } > > the hadler.login() method gets called by the login method declared in > the Service class. > The Service.login method is called by an Activity method. What puzzles > me is that i was expecting handler.post() to spawn a new thread, and > turn the whole login process into an asynchronous one, instead the > thread id is 1 and as a result the interface on the Activity is > frozen. > what's going on here ? > > take care > luka --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] Announcing the new M5 SDK! http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
