added size pizza

Author: shekharAggarwal

lib/pizza_order/bloc/pizza_order_bloc.dart

@@ -0,0 +1,33 @@
+import 'package:flutter/foundation.dart' show ChangeNotifier, ValueNotifier;
+import 'package:flutter_animation/pizza_order/constant/ingredient.dart';
+
+class PizzaOrderBLoC extends ChangeNotifier{
+  final listIngredients = <Ingredient>[];
+  final notifierTotal = ValueNotifier(15);
+  final notifierDeletedIngredient = ValueNotifier<Ingredient>(null);
+  void addIngredient(Ingredient ingredient){
+    listIngredients.add(ingredient);
+    notifierTotal.value++;
+  }
+
+  bool containsIngredient(Ingredient ingredient){
+    for (Ingredient i in listIngredients) {
+      if (i.compare(ingredient)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  void removeIngredient(Ingredient ingredient) {
+    listIngredients.remove(ingredient);
+    notifierTotal.value--;
+    notifierDeletedIngredient.value =ingredient;
+
+  }
+
+  void refreshDeletedIngredient() {
+    notifierDeletedIngredient.value = null;
+  }
+
+}

lib/pizza_order/bloc/pizza_order_provider.dart

@@ -0,0 +1,14 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_animation/pizza_order/bloc/pizza_order_bloc.dart';
+
+class PizzaOrderProvider extends InheritedWidget {
+  PizzaOrderProvider({this.bloc, @required this.child}) : super(child: child);
+  final PizzaOrderBLoC bloc;
+  final Widget child;
+
+  static PizzaOrderBLoC of(BuildContext context) =>
+      context.findAncestorWidgetOfExactType<PizzaOrderProvider>().bloc;
+
+  @override
+  bool updateShouldNotify(covariant InheritedWidget oldWidget) => true;
+}

lib/pizza_order/constent/ingredient.dart renamed to lib/pizza_order/constant/ingredient.dart

@@ -1,23 +1,27 @@
-import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
 
 class Ingredient {
-  const Ingredient(this.image,this.positions);
-  final List<Offset> positions;
+  const Ingredient(this.image,this.imageUnit, this.positions);
+
   final String image;
+  final List<Offset> positions;
+  final String imageUnit;
 
   bool compare(Ingredient i) => i.image == image;
 }
 
 final ingredients = const <Ingredient>[
   Ingredient('assets/pizza_order/chili.png',
-  <Offset>[
-    Offset(0.2, 0.2),
-    Offset(0.6, 0.2),
-    Offset(0.4, 0.25),
-    Offset(0.5, 0.3),
-    Offset(0.4, 0.65)
-  ]),
-  Ingredient('assets/pizza_order/garlic.png',
+      'assets/pizza_order/chili_unit.png',
+      <Offset>[
+        Offset(0.2, 0.2),
+        Offset(0.6, 0.2),
+        Offset(0.4, 0.25),
+        Offset(0.5, 0.3),
+        Offset(0.4, 0.65)
+      ]),
+  Ingredient('assets/pizza_order/mushroom.png',
+      'assets/pizza_order/mushroom_unit.png',
       <Offset>[
         Offset(0.2, 0.35),
         Offset(0.65, 0.35),
@@ -26,14 +30,16 @@ final ingredients = const <Ingredient>[
         Offset(0.3, 0.5)
       ]),
   Ingredient('assets/pizza_order/olive.png',
+      'assets/pizza_order/olive_unit.png',
       <Offset>[
         Offset(0.25, 0.5),
-        Offset(0.65, 0.6),
+        Offset(0.4, 0.4),
         Offset(0.2, 0.3),
         Offset(0.4, 0.2),
-        Offset(0.2, 0.6)
+        Offset(0.2, 0.45)
       ]),
   Ingredient('assets/pizza_order/onion.png',
+      'assets/pizza_order/onion.png',
       <Offset>[
         Offset(0.2, 0.65),
         Offset(0.65, 0.3),
@@ -42,6 +48,7 @@ final ingredients = const <Ingredient>[
         Offset(0.4, 0.65)
       ]),
   Ingredient('assets/pizza_order/pea.png',
+      'assets/pizza_order/pea_unit.png',
       <Offset>[
         Offset(0.2, 0.35),
         Offset(0.65, 0.35),
@@ -50,6 +57,7 @@ final ingredients = const <Ingredient>[
         Offset(0.3, 0.5)
       ]),
   Ingredient('assets/pizza_order/pickle.png',
+      'assets/pizza_order/pickle_unit.png',
       <Offset>[
         Offset(0.2, 0.65),
         Offset(0.65, 0.3),
@@ -58,6 +66,7 @@ final ingredients = const <Ingredient>[
         Offset(0.4, 0.65)
       ]),
   Ingredient('assets/pizza_order/potato.png',
+      'assets/pizza_order/potato_unit.png',
       <Offset>[
         Offset(0.2, 0.2),
         Offset(0.6, 0.2),