Noam wrote:
> I have tried that, but since both A and B are in the same java file,
> then it won't work.

Oh, oops. Sorry.

Have you tried overriding onContentChanged()? I'm not sure when that all
gets called, but there's a decent chance it is called when the screen
changes content. That would probably trap both B->A and A->B; you'd need
to figure out how to track which is which (e.g., also override
onPreferenceTreeClick()).

If that doesn't help, since PreferenceActivity extends ListActivity, you
might try calling registerDataSetObserver() on the activity's
ListAdapter and see if the DataObserver gets control when screens change.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com
_The Busy Coder's Guide to Android Development_ Version 2.0 Available!

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