added a prototype for a basket

Frontend-user/lib/basket.dart

@@ -1,29 +1,51 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'sample_data.dart';
 
 /* todo:
-  - Flag für Ansicht/Bearbeitung
   - individuelle Icons je nach Kategorie
   - Gesamtpreis
 */
 
 class ShowBasket extends StatelessWidget {
   final Transaction transaction;
+  final bool editable;
 
-  const ShowBasket({super.key, required this.transaction});
+  const ShowBasket(
+      {super.key, required this.transaction, this.editable = false});
 
   @override
   Widget build(BuildContext context) {
+    return Column(children: [
+      Card(
+        child: ListTile(
+            leading: const Icon(
+              Icons.euro,
+            ),
+            title: const Text(
+              'Kosten:',
+            ),
+            subtitle: Text(
+              '${transaction.amount / 100}',
+            )),
+      ),
+      getBasket(transaction.basket!)
+    ]);
+  }
+
+  ListView getBasket(List<Basket> basket) {
     return ListView.builder(
+      shrinkWrap: true,
       itemCount: null,
       itemBuilder: (context, index) {
-        if (index < transaction.basket!.length) {
+        if (index < basket.length) {
           return Card(
             child: ListTile(
-              leading: const Icon(Icons.abc),
-              title: Text(
-                  transaction.basket![index].products.name), //better null check
-              //trailing: Text(),
+              leading: getLeading(basket[index].products.category),
+              title: Text(basket[index].products.name),
+              subtitle: Text(
+                  '${basket[index].amount} ${basket[index].products.unit}'),
+              trailing: editable == true ? getTrailing() : null,
             ),
           );
         } else {
@@ -32,4 +54,31 @@ class ShowBasket extends StatelessWidget {
       },
     );
   }
+
+  Widget getLeading(Category category) {
+    switch (category) {
+      case Category.obstUndGemuese:
+        return const Text("🍅");
+      case Category.brotCerealienUndAufstriche:
+        return const Text('🍞');
+      case Category.drogerieUndHaushalt:
+      case Category.getraenke:
+      case Category.kochenUndBacken:
+      case Category.pfand:
+      case Category.suessesUndKnabbereien:
+      case Category.oeleSossenUndGewuerze:
+      default:
+        return const Icon(Icons.error);
+    }
+  }
+
+  Widget getTrailing() {
+    return TextField(
+      decoration: const InputDecoration(labelText: "Enter your number"),
+      keyboardType: TextInputType.number,
+      inputFormatters: <TextInputFormatter>[
+        FilteringTextInputFormatter.digitsOnly
+      ],
+    );
+  }
 }

Frontend-user/lib/finance.dart

@@ -11,6 +11,7 @@ todo:
   - farbliche Hervorhebungen
   - semanticLabels, Screenreader
   - monatliche Aufladung: ausstehende Beträge
+  - Icons: maybe flutter awesome
 */
 
 class Finance extends StatelessWidget {
@@ -95,6 +96,8 @@ class Finance extends StatelessWidget {
         return 'Korrektur';
       case TransaktionArt.monatlBeitrag:
         return 'monatlicher Beitrag';
+      default:
+        return 'Ein Error ist aufgetreten';
     }
   }
 
@@ -116,10 +119,10 @@ class Finance extends StatelessWidget {
         return const Icon(Icons.savings);
       case TransaktionArt.einkauf:
         return const Icon(Icons.shopping_basket);
-      case TransaktionArt.korrektur:
-        return const Icon(Icons.priority_high);
       case TransaktionArt.monatlBeitrag:
         return const Icon(Icons.payment);
+      default:
+        return const Icon(Icons.priority_high);
     }
   }
 }

Frontend-user/lib/main.dart

@@ -27,7 +27,7 @@ class MyApp extends StatelessWidget {
             brightness: Brightness.dark,
             seedColor: const Color(0xff5f7c61),
           )),
-      themeMode: ThemeMode.dark,
+      themeMode: ThemeMode.system,
       home: const MyHomePage(),
     );
   }