lib/pages/report.dart

@@ -48,15 +48,15 @@ class _ProjectionPageState extends State<ProjectionPage> {
     // Summaries for display as well as calculation of totals for projections.
     Widget expenseSummary = SummaryCardForTotals(
       list: DatabaseHelper.instance.getExpenses(),
-      itemType: ItemType.expense,
+      summaryTypeLabel: ItemType.expense.title,
     );
     Widget incomeSummary = SummaryCardForTotals(
       list: DatabaseHelper.instance.getIncomes(),
-      itemType: ItemType.income,
+      summaryTypeLabel: ItemType.income.title,
     );
     Widget assetSummary = SummaryCardForTotals(
       list: DatabaseHelper.instance.getAssets(),
-      itemType: ItemType.asset,
+      summaryTypeLabel: ItemType.asset.title,
     );
 
     // Calculations for the projections.
@@ -155,16 +155,14 @@ class SummaryCardForTotals extends StatelessWidget {
   const SummaryCardForTotals({
     super.key,
     required this.list,
-    required this.itemType,
+    required this.summaryTypeLabel,
   });
 
   final Future<List<TrackedItem>> list;
-  final ItemType itemType;
+  final String summaryTypeLabel;
 
   @override
   Widget build(BuildContext context) {
-    String summaryTypeLabel = itemType.title.toString();
-
     return FutureBuilder<List<TrackedItem>>(
         future: list,
         builder: (
@@ -177,9 +175,12 @@ class SummaryCardForTotals extends StatelessWidget {
 
           // Calculate the total fields based on item type.
           double dailyTotal = 0, monthlyTotal = 0, yearlyTotal = 0;
+          ItemType? itemType;
           for (TrackedItem e in snapshot.data!) {
-            if (e.type != itemType) {
+            if (itemType == null) {
-              throw "List in SummaryCardForTotals has incorrect item types, abort!";
+              itemType = e.type!;
+            } else if (itemType != e.type) {
+              throw "List in SummaryCardForTotals has multiple item types, abort!";
             }
 
             if (e.type == ItemType.asset) {
@@ -193,6 +194,9 @@ class SummaryCardForTotals extends StatelessWidget {
 
           /* Load page variables based on calculated totals. */
           switch (itemType) {
+            case null:
+              break;
+
             case ItemType.asset:
               _assetTotal = monthlyTotal;
               break;

pubspec.yaml

@@ -1,7 +1,7 @@
 name: expense_tracker
 description: Track recurring expenses against income and liquid assets.
 publish_to: 'none'
-version: 0.1.3
+version: 0.1.2
 
 environment:
   sdk: ^3.6.1