Re: [android-developers] Re: runOnUIThread method in doInBackground of Async Task...

On Mon, Oct 3, 2011 at 5:28 PM, Studio LFP <studio.lfp@gmail.com> wrote:

When this happens, you need to save off the position in your AsyncTask and restart it back when the activity gets restarted.

The OP is using getLastNonConfigurationInstance(), which would indicate he's keeping the same AsyncTask instance across the application restart, so he wouldn't have to restart the AsyncTask.

2011/10/3 João Rossa <joao.rossa@gmail.com>

Well when i rotate, either while the thread is started or after the screen data is refreshed it goes back to the fields having not been filled. but the thread does run because if i dont rotate the UI views are filled with the content i fetch from the server.

Looks like you AsyncTask is an inner-class of your Activity, which means that when you start it, it has an implicit reference to the Activity that started it. When you rotate the device, that Activity is destroyed but your AsyncTask is still holding on to it, so when you do findViewById() in your Runnable, you're acting on the old instance that is no longer visible.

One thing you can do is make the AsyncTask *not* an inner-class and give it an *explicit* reference to the Activity it's working on, then reset that instance to the new Activity once your activity is restarted.

Or something like that.

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TreKing - Chicago transit tracking app for Android-powered devices

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