recipes can be added to db from createpage

lib/pages/create_recipe_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
+import 'package:rezepte/services/providers/db/dbhelper.dart';
 import 'package:rezepte/widgets/ingredients_bottomsheet.dart';
 import 'package:rezepte/widgets/will_pop_scope.dart';
 import '../models/difficulty.dart';
@@ -34,10 +35,17 @@ class _CreateRecipeState extends State<CreateRecipe> {
 
   @override
   Widget build(BuildContext context) {
-    recipe = Provider.of<RecipeProvider>(context).recipe;
-    recipeProvider = Provider.of<RecipeProvider>(context, listen: false);
+    recipeProvider = Provider.of<RecipeProvider>(context, listen: true);
     recipeListProvider =
         Provider.of<RecipeListProvider>(context, listen: false);
+
+    if (recipeProvider.recipe == null) {
+      recipe = Recipe(id: DbHelper.nextRecipeId, title: '');
+      WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
+        recipeProvider.recipe = recipe;
+      });
+    }
+
     return CustomWillPopScope(
       context,
       ignore: recipe.isEmpty,

lib/pages/recipe_detail_page.dart

@@ -2,6 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:rezepte/services/providers/recipe_provider.dart';
 
+import '../models/recipe.dart';
+
 class RecipeDetail extends StatelessWidget {
   const RecipeDetail({super.key});
   static const routeName = '/recipeDetail';
@@ -10,6 +12,9 @@ class RecipeDetail extends StatelessWidget {
   Widget build(BuildContext context) {
     final recipe = Provider.of<RecipeProvider>(context, listen: false).recipe;
 
+    if (recipe == null) Navigator.of(context).pop();
+    recipe as Recipe;
+
     return Scaffold(
       appBar: AppBar(),
       body: Center(

lib/services/providers/db/dbhelper.dart

@@ -30,4 +30,6 @@ class DbHelper {
   static bool deleteRecipe(Recipe recipe) {
     return _isar.write((isar) => isar.recipes.delete(recipe.id));
   }
+
+  static Stream<void> get recipesChangedStream => _isar.recipes.watchLazy();
 }

lib/services/providers/recipe_list_provider.dart

@@ -4,6 +4,11 @@ import 'package:rezepte/services/providers/db/dbhelper.dart';
 import '../../models/recipe.dart';
 
 class RecipeListProvider extends ChangeNotifier {
+  RecipeListProvider() {
+    DbHelper.recipesChangedStream.listen((event) {
+      notifyListeners();
+    });
+  }
   // final List<Recipe> _recipes = [];
 
   // set recipes(List<Recipe> recipes) {
@@ -20,8 +25,7 @@ class RecipeListProvider extends ChangeNotifier {
   //   if (!silent) notifyListeners();
   // }
 
-  void addRecipe(Recipe recipe, {silent = false}) {
+  void addRecipe(Recipe recipe) {
     DbHelper.putRecipe(recipe);
-    if (!silent) notifyListeners();
   }
 }

lib/services/providers/recipe_provider.dart

@@ -5,9 +5,9 @@ import '../../models/recipe.dart';
 class RecipeProvider extends ChangeNotifier {
   Recipe? _recipe;
 
-  Recipe get recipe => _recipe ??= Recipe(id: 0, title: '');
+  Recipe? get recipe => _recipe;
 
-  set recipe(Recipe recipe) {
+  set recipe(Recipe? recipe) {
     _recipe = recipe;
     notifyListeners();
   }