[android-developers] Design Question

I have an app that posts a status and a location to a php script.
Currently It is all performed with 2 classes. One is the main screen
where you can put the status in and click a submit button, the second
is a class that implements the LocationListener and keeps the location
up to date and handles change events to the location.

When you click submit the application hangs while it send the status
and location to the PHP page, admitedly it doesn't hang long but i
realise this is not the correct way to do it so i was wondering what
the best practice is for performing background tasks that return
results in Android is?

Thanks in advance for any help :-)

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