Update foreground activity from background
<p>I have <code>ListView</code>, populated by an SQLITE table, that is updated by bluetooth spp input through the use of a <code>Handler</code>. (A bluetooth barcode scanner performs a scan-and-increment function to modify lines in the table.)  I <code>startActivityForResult</code> on a <code>ListItemClick</code> to bring up a view with more detail and the ability to change the record information.  While the detail view is active, additional scans will continue to update the original table and ListView.</p>

<p>Is there a way to notify the active "detail" view that the background table has been changed (and thereby enabling the foreground activity to display new data)?</p>
