(changeSet == null) {
notifyDataSetChanged();
return;
}
OrderedCollectionChangeSet.Range[] deletions = changeSet.getDeletionRanges();
for (int i = deletions.length - 1; i >= 0; i--) {
OrderedCollectionChangeSet.Range range = deletions[i];
notifyItemRangeRemoved(range.startIndex, range.length);
}
OrderedCollectionChangeSet.Range[] insertions = changeSet.getInsertionRanges();
for (OrderedCollectionChangeSet.Range range : insertions) {
notifyItemRangeInserted(range.startIndex, range.length);
}
OrderedCollectionChangeSet.Range[] modifications = changeSet.getChangeRanges();
for (OrderedCollectionChangeSet.Range range : modifications) {
notifyItemRangeChanged(range.startIndex, range.length);
}
}