ability to display added ingredients in listview

lib/models/ingredient.dart

@@ -7,7 +7,7 @@ class Ingredient {
 
   Ingredient({
     required this.title,
-    required this.possibleUnits,
+    this.possibleUnits = const [],
     this.preferredBrands = const [],
   });
 

lib/models/ingredient_list_entry.dart

@@ -0,0 +1,11 @@
+import 'ingredient.dart';
+import 'unit.dart';
+
+class IngredientListEntry {
+  final Ingredient ingredient;
+  final int amount;
+  final Unit unit;
+  final bool optional;
+
+  IngredientListEntry(this.ingredient, this.amount, this.unit, this.optional);
+}

lib/pages/create_recipe_page.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:rezepte/widgets/ingredients_bottomsheet.dart';
 import '../models/difficulty.dart';
+import '../models/ingredient_list_entry.dart';
 import '../services/providers/recipe_provider.dart';
 
 class CreateRecipe extends StatefulWidget {
@@ -14,6 +15,7 @@ class CreateRecipe extends StatefulWidget {
 
 class _CreateRecipeState extends State<CreateRecipe> {
   late RecipeProvider recipeProvider;
+  final List<IngredientListEntry> ingredientEntries = [];
 
   @override
   Widget build(BuildContext context) {
@@ -23,6 +25,8 @@ class _CreateRecipeState extends State<CreateRecipe> {
         title: const Text('Create Recipe'),
       ),
       body: Form(
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 20),
           child: Column(
             children: [
               TextFormField(
@@ -40,21 +44,67 @@ class _CreateRecipeState extends State<CreateRecipe> {
               DropdownMenu<Difficulty?>(
                 dropdownMenuEntries: DifficultyUtil.getDropdownList(),
                 onSelected: (value) => recipeProvider.difficulty = value,
+                label: const Text('Difficulty'),
               ),
               ElevatedButton(
                 onPressed: _openIngredientBottomSheet,
                 child: const Text('Add Ingredient'),
               ),
+              Expanded(
+                child: ListView.separated(
+                  itemCount: ingredientEntries.length,
+                  itemBuilder: _ingredientListBuilder,
+                  separatorBuilder: (context, index) => const Divider(),
+                ),
+              )
             ],
           ),
         ),
+      ),
     );
   }
 
   void _openIngredientBottomSheet() {
     showModalBottomSheet(
       context: context,
-      builder: (context) => const IngredientsBottomsheet(),
+      builder: (context) => IngredientsBottomsheet(
+        onSubmitted: _onIngredientSubmitted,
+      ),
     );
   }
+
+  void _onIngredientSubmitted(IngredientListEntry ingredient) => setState(() {
+        ingredientEntries.add(ingredient);
+      });
+
+  Widget? _ingredientListBuilder(BuildContext context, int index) {
+    final ingredient = ingredientEntries.elementAt(index);
+    final textTheme = Theme.of(context).textTheme.titleMedium;
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 10),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          Text(ingredient.ingredient.title, style: textTheme),
+          Row(
+            children: [
+              Text(
+                ingredient.amount.toString(),
+                style: textTheme,
+              ),
+              const Padding(padding: EdgeInsets.symmetric(horizontal: 2)),
+              Text(
+                ingredient.unit.name,
+                style: textTheme,
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _seperatorBuilder(BuildContext context, int index) {
+    return const Divider(indent: 20, endIndent: 20);
+  }
 }

lib/theme.dart

@@ -3,6 +3,8 @@ import 'package:flutter/material.dart';
 final _baseTheme = ThemeData(
   fontFamily: "Ubuntu",
   useMaterial3: true,
+).copyWith(
+  dividerTheme: const DividerThemeData(indent: 20, endIndent: 20),
 );
 
 final lightTheme = _baseTheme.copyWith(
@@ -10,7 +12,9 @@ final lightTheme = _baseTheme.copyWith(
       seedColor: Colors.deepPurple,
       brightness: Brightness.light,
     ),
-);
+    dividerTheme: DividerThemeData(
+      color: Colors.grey[600],
+    ));
 
 final darkTheme = _baseTheme.copyWith(
   colorScheme: ColorScheme.fromSeed(

lib/widgets/ingredients_bottomsheet.dart

@@ -2,12 +2,17 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../constants.dart' as constants;
 import '../models/ingredient.dart';
+import '../models/ingredient_list_entry.dart';
 import '../models/unit.dart';
 import '../example_data.dart' as ea;
 import '../services/providers/recipe_provider.dart';
 
+typedef IngredientCallback = void Function(IngredientListEntry);
+
 class IngredientsBottomsheet extends StatefulWidget {
-  const IngredientsBottomsheet({super.key});
+  const IngredientsBottomsheet({required this.onSubmitted, super.key});
+
+  final IngredientCallback onSubmitted;
 
   @override
   State<IngredientsBottomsheet> createState() => _IngredientsBottomsheetState();
@@ -15,13 +20,13 @@ class IngredientsBottomsheet extends StatefulWidget {
 
 class _IngredientsBottomsheetState extends State<IngredientsBottomsheet> {
   final List<DropdownMenuEntry<Ingredient>> ingredientEntries = [];
-  final List<DropdownMenuEntry<Unit>> unitEntries = [];
-  Unit? selectedUnit;
   late RecipeProvider recipeProvider;
+  Unit? selectedUnit;
+  final List<DropdownMenuEntry<Unit>> unitEntries = [];
 
-  bool _isOptional = false;
-  TextEditingController _ingredientController = TextEditingController();
   TextEditingController _amountController = TextEditingController();
+  TextEditingController _ingredientController = TextEditingController();
+  bool _isOptional = false;
   TextEditingController _unitController = TextEditingController();
 
   @override
@@ -137,6 +142,44 @@ class _IngredientsBottomsheetState extends State<IngredientsBottomsheet> {
     );
   }
 
+  void _nextTapped() {
+    final success = _submit();
+    if (success) {
+      setState(() {
+        _ingredientController.value = TextEditingValue.empty;
+        _unitController.value = TextEditingValue.empty;
+        _amountController.value = TextEditingValue.empty;
+        _isOptional = false;
+        selectedUnit = null;
+      });
+    }
+  }
+
+  void _finishTapped() {
+    final success = _submit();
+    if (success) {
+      Navigator.of(context).pop();
+    }
+  }
+
+  void _cancelTapped() {
+    Navigator.of(context).pop();
+  }
+
+  bool _submit() {
+    final ingredient = Ingredient(title: _ingredientController.text);
+    final unit = selectedUnit;
+    final amount = int.tryParse(_amountController.text);
+    if (ingredient.title.isEmpty || unit == null || amount == null) {
+      return false;
+    }
+
+    final newEntry = IngredientListEntry(ingredient, amount, unit, _isOptional);
+    widget.onSubmitted(newEntry);
+
+    return true;
+  }
+
   @override
   Widget build(BuildContext context) {
     recipeProvider = Provider.of<RecipeProvider>(context);
@@ -145,24 +188,4 @@ class _IngredientsBottomsheetState extends State<IngredientsBottomsheet> {
       builder: _bottomSheetContent,
     );
   }
-
-  void _nextTapped() {
-    _submit();
-    setState(() {
-      _ingredientController.value = TextEditingValue.empty;
-      _unitController.value = TextEditingValue.empty;
-      _amountController.value = TextEditingValue.empty;
-      _isOptional = false;
-    });
-  }
-
-  void _finishTapped() {
-    // TODO implement}
-  }
-  void _cancelTapped() {
-    // TODO implement}
-  }
-  void _submit() {
-    // TODO implement
-  }
 }