Have you seen the kind of calls you do for this hello world program in Android?
A first hand look at building an Android application A first hand look at building an Android application - YouTube
Look at those
getContentResolver() startManagingCursor() SimpleCursorAdapter() setListAdapter() ...
My goodness, I just one to show a list of contacts in the screen to dial the one clicked by the user!!!
Life is hard.
-- fxn
