+ private void replaceItems(@NonNull List<Item> newList) {
+ renumberItems();
+
+ setItems(newList);
+ }
+ /**
+ * make old items replaceable in-place. makes the new values visually blend in
+ */
+ private void renumberItems() {
+ final List<Item> list = items.getValue();
+ if (list == null) {
+ return;
+ }
+
+ int id = 0;
+ for (Item item : list)
+ item.id = id++;
+ }