question: @ Override protected void onProgressUpdate ( Integer ... values ) { if ( parent != null ) { if ( values [ 0 ] == ON_CACHE_END ) { parent . onCacheEnd ( ) ; } else if ( values [ 0 ] == ON_CACHE_INTERRUPTED ) { Log . i ( TAG , "Flag ON_CACHE_INTERRUPTED has been set..." ) ; shouldBeStopped = true ; parent . onCacheInterrupted ( ) ; } else { parent . onCacheProgress ( taskCount , values [ 0 ] ) ; } } }
target:  Calls the parent method to update the progress-bar in the UI while articles are refreshed.