According to my research, which includes reputable sources (Mark
Murphy et al), the most preferred way of polling a remote source and
presenting said data to the user is by creating a service and using
AsyncTask within that service to do the polling. I have done that.

But, when I read the docs (http://developer.android.com/reference/
android/os/AsyncTask.html), there seem to be several "Threading Rules"
that conflict with this way of doing things: "The task instance must
be created on the UI thread." and "execute(Params...) must be invoked
on the UI thread." As stated, I have created the task instance on the
Service thread (not the UI thread). Am I missing something?

Also, when the AsyncTask finished, I sent out a Broadcast on
onPostExecute, which is then picked up by the Activity, telling it to
retrieve the final value again from the service (since I couldn't
obviously update the UI from the service). I couldn't figure out any
other way to return the result of the AsyncTask. Is this the correct
practice?

Java is not my native language so please bear with my ignorance.
Thanks!

-- 
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

Reply via email to