/**
* Adds a historical record.
*
* @param historicalRecord The record to add.
* @return True if the record was added.
*/
private boolean addHisoricalRecord(HistoricalRecord historicalRecord) {
final boolean added = mHistoricalRecords.add(historicalRecord);
if (added) {
mHistoricalRecordsChanged = true;
pruneExcessiveHistoricalRecordsIfNeeded();
persistHistoricalDataIfNeeded();
sortActivitiesIfNeeded();
notifyChanged();
}
return added;
}
