implemented hotrecharge changes

lib/screens/home/home_controller.dart

@@ -62,11 +62,11 @@ abstract class BillProvider with _$BillProvider {
     required String description,
     required bool requiresAccount,
     required bool requiresAmount,
-    required bool requiresAmountFromMerchant,
+    required bool? requiresAmountFromMerchant,
     required bool requiresPhone,
-    required bool requiresReversal,
+    required bool? requiresReversal,
     required String? additionalDataString,
-    required String processorType,
+    required String? processorType,
     required String uid,
     required String image,
     required String label,
@@ -83,8 +83,16 @@ class HomeController extends ChangeNotifier {
   final Http http = Http();
   BuildContext context;
 
+  bool _disposed = false;
+
   HomeController(this.context);
 
+  @override
+  void dispose() {
+    _disposed = true;
+    super.dispose();
+  }
+
   void _showErrorSnackBar(String? message) {
     WidgetsBinding.instance.addPostFrameCallback((_) {
       ScaffoldMessenger.of(context).showSnackBar(
@@ -99,7 +107,7 @@ class HomeController extends ChangeNotifier {
 
   Future<void> getAccounts() async {
     model.accounts = getFakeAccounts();
-    notifyListeners();
+    if (!_disposed) notifyListeners();
   }
 
   Future<void> getProviders() async {
@@ -108,7 +116,7 @@ class HomeController extends ChangeNotifier {
       model.transactions = getFakeTransactions();
 
       model.isLoading = true;
-      notifyListeners();
+      if (!_disposed) notifyListeners();
 
       List<dynamic> response = await http.get('/public/providers');
       model.providers = response.map((e) => BillProvider.fromJson(e)).toList();
@@ -117,8 +125,9 @@ class HomeController extends ChangeNotifier {
       if (model.providers.isNotEmpty) {
         updateSelectedProvider(model.providers[0]);
       }
-    } catch (e) {
+    } catch (e, s) {
       logger.e(e);
+      logger.e(s);
       _showErrorSnackBar(
         "Problem fetching providers, are you connected to the internet?",
       );
@@ -128,7 +137,7 @@ class HomeController extends ChangeNotifier {
     }
 
     model.isLoading = false;
-    notifyListeners();
+    if (!_disposed) notifyListeners();
   }
 
   void updateSelectedProvider(BillProvider provider) {
@@ -136,13 +145,13 @@ class HomeController extends ChangeNotifier {
 
     // getProducts(provider.uid);
 
-    notifyListeners();
+    if (!_disposed) notifyListeners();
   }
 
   Future<void> getTransactions(String userId) async {
     model.isLoading = true;
     // model.transactions = getFakeTransactions();
-    notifyListeners();
+    if (!_disposed) notifyListeners();
 
     try {
       Map<String, dynamic> response = await http.get(
@@ -163,7 +172,7 @@ class HomeController extends ChangeNotifier {
       model.transactions = [];
     } finally {
       model.isLoading = false;
-      notifyListeners();
+      if (!_disposed) notifyListeners();
     }
   }
 
@@ -171,7 +180,7 @@ class HomeController extends ChangeNotifier {
     // activate skeletonizer
     model.categories = getFakeCategoryData();
     model.isLoading = true;
-    notifyListeners();
+    if (!_disposed) notifyListeners();
 
     // Simulate fetching categories
     try {
@@ -190,14 +199,14 @@ class HomeController extends ChangeNotifier {
       model.categories = [];
     } finally {
       model.isLoading = false;
-      notifyListeners();
+      if (!_disposed) notifyListeners();
     }
   }
 
   Future<void> updateSelectedCategory(Category? category) async {
     if (category == null) {
       model.filterableProviders = model.providers;
-      notifyListeners();
+      if (!_disposed) notifyListeners();
       return;
     }
 
@@ -207,7 +216,7 @@ class HomeController extends ChangeNotifier {
         .where((element) => element.category == category.label)
         .toList();
 
-    notifyListeners();
+    if (!_disposed) notifyListeners();
   }
 
   List<Map<String, dynamic>> getFakeTransactions() {