[android-developers] Refreshing/reloading an ExpandableListActivity

My app is an ExpandableListActivity sub-class.

I monitor preferences modification, and on a system callback -

i'd like to refresh/reload the list. i call setContentView( layout ).

the problem is that the system squawks that the calling thread
is different. it's the system notification thread and not the
original UI thread that created the view.

how can i reload the list.

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