private boolean sortActivitiesIfNeeded ( ) { if ( mActivitySorter != null && mIntent != null && ! mActivities . isEmpty ( ) && ! mHistoricalRecords . isEmpty ( ) ) { mActivitySorter . sort ( mIntent , mActivities , Collections . unmodifiableList ( mHistoricalRecords ) ) ; return true ; } return false ; }
Sorts the activities if necessary which is if there is a sorter there are some activities to sort and there is some historical data .