Some Improvements

lib/providers/todoprovider.dart

@@ -24,11 +24,16 @@ class TodoProvider extends ChangeNotifier {
         String title = key2;
         bool checked = decode[key2]["checked"];
         DateTime dueTime = DateTime.parse(decode[key2]["dueTime"]);
+        bool notifiedDay = decode[key2]["notifiedDay"] ?? false;
+        bool notifiedHour = decode[key2]["notifiedHour"] ?? false;
         todoLists[key]!.todos.add(Todo(
-            title: title,
-            widget: buildTodoWidget(title, checked, dueTime),
-            checked: checked,
-            dueTime: dueTime));
+              title: title,
+              widget: buildTodoWidget(title, checked, dueTime),
+              checked: checked,
+              dueTime: dueTime,
+              notifiedDay: notifiedDay,
+              notifiedHour: notifiedHour,
+            ));
       }
     }
 
@@ -91,7 +96,9 @@ class TodoProvider extends ChangeNotifier {
     for (Todo t in todos) {
       js["${t.title}"] = {
         "checked": t.checked,
-        "dueTime": t.dueTime.toString()
+        "dueTime": t.dueTime.toString(),
+        "notifiedDay": t.notifiedDay,
+        "notifiedHour": t.notifiedHour
       };
     }
     await FileHandler.saveList(js, selectedList);
@@ -99,7 +106,12 @@ class TodoProvider extends ChangeNotifier {
 
   void addTodo(String title, DateTime dueTime) async {
     todos.add(Todo(
-        title: title, checked: false, widget: buildTodoWidget(title, false, dueTime), dueTime: dueTime));
+        title: title,
+        checked: false,
+        widget: buildTodoWidget(title, false, dueTime),
+        dueTime: dueTime,
+        notifiedHour: false,
+        notifiedDay: false));
 
     await writeTodoChanges();
     notifyListeners();
@@ -117,6 +129,8 @@ class TodoProvider extends ChangeNotifier {
     Todo todo = todoByTitle(oldTitle);
     todo.title = newTitle;
     todo.dueTime = dueTime;
+    todo.notifiedDay = false;
+    todo.notifiedHour = false;
 
     todo.widget = buildTodoWidget(newTitle, todo.checked, dueTime);
 
@@ -152,6 +166,9 @@ class TodoProvider extends ChangeNotifier {
         title: "None",
         widget: const SizedBox(),
         checked: false,
-        dueTime: DateTime.now());
+        dueTime: DateTime.now(),
+        notifiedDay: false,
+        notifiedHour: false,
+    );
   }
 }