Android AsyncTask context behavior

Question

I\'ve been working with AsyncTasks in Android and I am dealing with an issue.

Take a simple example, an Activity with one AsyncTask. The task on the background does

Answer 1

AsyncTask is not designed to be reused once an Activity has been torn down and restarted. The internal Handler object becomes stale, just like you stated. In the Shelves example by Romain Guy, he simple cancels any currently running AsyncTask's and then restarts new ones post-orientation change.

It is possible to hand off your Thread to the new Activity, but it adds a lot of plumbing. There is no generally agreed on way to do this, but you can read about my method here : http://foo.jasonhudgins.com/2010/03/simple-progressbar-tutorial.html