Changed styling, bit of refactoring

lib/models/todo.dart

@@ -7,15 +7,17 @@ part 'todo.g.dart';
 @collection
 class Todo {
   final int id;
-  final String title;
-  final String description;
+  String title;
+  String description;
   final DateTime createdAt;
+  bool done;
 
   Todo({
-    int? id,
+    int? index,
     required this.title,
     this.description = '',
-    DateTime? createdAt,
-  })  : createdAt = createdAt ?? DateTime.now(),
-        id = id ?? DbHelper.nextTodoId;
+    DateTime? createdTime,
+    this.done = false,
+  })  : createdAt = createdTime ?? DateTime.now(),
+        id = index ?? DbHelper.nextTodoId;
 }

lib/pages/dashboard_page.dart

@@ -10,12 +10,18 @@ class DashboardPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      appBar: AppBar(),
       floatingActionButton: FloatingActionButton(
         onPressed: () =>
             Navigator.of(context).pushNamed(CreateTodoPage.routeName),
         child: const Icon(Icons.add),
       ),
-      body: const TodoList(),
+      body: Center(
+        child: SizedBox(
+          width: MediaQuery.of(context).size.width * 0.9,
+          child: const TodoList(),
+        ),
+      ),
     );
   }
 }

lib/pages/todo_create_page.dart

@@ -56,7 +56,7 @@ class _CreateTodoPageState extends State<CreateTodoPage> {
   }
 
   void _onSubmitted() {
-    DbHelper.addTodo(Todo(title: _title, description: _description));
+    DbHelper.addOrUpdateTodo(Todo(title: _title, description: _description));
     Navigator.of(context).pop();
   }
 }

lib/services/dbhelper.dart

@@ -13,12 +13,21 @@ class DbHelper {
       schemas: [TodoSchema],
       directory: dir.path,
     );
+    _isar.write((isar) => isar.todos.clear());
   }
 
-  static List<Todo> fetchTodos() => _isar.todos.where().findAll();
+  static List<Todo> fetchTodos() =>
+      _isar.todos.where().doneEqualTo(false).findAll();
 
-  static void addTodo(Todo todo) => _isar.write((isar) => isar.todos.put(todo));
+  static void addOrUpdateTodo(Todo todo) =>
+      _isar.write((isar) => isar.todos.put(todo));
 
-  static Stream<void> watchTodos() =>
+  static void deleteTodoAt(int index) =>
+      _isar.write((isar) => isar.todos.delete(index));
+
+  static void deleteTodo(Todo todo) =>
+      _isar.write((isar) => isar.todos.delete(todo.id));
+
+  static Stream<void> get todosChangedStream =>
       _isar.todos.watchLazy(fireImmediately: true);
 }

lib/widgets/todo_list.dart

@@ -16,7 +16,7 @@ class _TodoListState extends State<TodoList> {
   @override
   void initState() {
     super.initState();
-    DbHelper.watchTodos().listen((event) {
+    DbHelper.todosChangedStream.listen((event) {
       setState(() {
         _todos = DbHelper.fetchTodos();
       });
@@ -35,7 +35,16 @@ class _TodoListState extends State<TodoList> {
   Widget _listBuilder(BuildContext context, int index) {
     final todo = _todos.elementAt(index);
     return ListTile(
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+      tileColor: Theme.of(context).colorScheme.primaryContainer,
       title: Text(todo.title),
+      trailing: IconButton(
+        onPressed: () {},
+        icon: Icon(
+          Icons.check_box,
+          color: Theme.of(context).colorScheme.primary,
+        ),
+      ),
     );
   }
 }