feat:增加代办事项状态管理

lib/main.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import 'layout/main_screen.dart';
+import 'store/todo_dialog_store.dart';
 
 void main() {
   runApp(const MyApp());
@@ -13,8 +14,11 @@ class MyApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return ChangeNotifierProvider(
+    return MultiProvider(
-      create: (context) => AppProvider(),
+      providers: [
+        ChangeNotifierProvider(create: (_) => AppProvider()),
+        ChangeNotifierProvider(create: (_) => TodoDialogStore()), // 新增
+      ],
       child: MaterialApp(
         title: '闪灵',
         theme: ThemeData(

lib/pages/todo_page.dart

@@ -1,10 +1,12 @@
+import 'package:flisp_app/store/todo_dialog_store.dart';
+import 'package:flisp_app/widgets/todo_widget.dart';
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'package:awesome_dialog/awesome_dialog.dart';
 import 'package:flisp_app/models/todo.dart';
 import 'package:flisp_app/utils/todo_utils.dart';
 import 'package:flisp_app/widgets/common.dart';
 import 'package:flisp_app/widgets/todo_dialog.dart';
-import 'package:flisp_app/widgets/todo_widget.dart';
-import 'package:flutter/material.dart';
 
 class TodoPage extends StatefulWidget {
   final VoidCallback? onAddTodoPressed;
@@ -16,28 +18,21 @@ class TodoPage extends StatefulWidget {
 }
 
 class TodoPageState extends State<TodoPage> {
-  // 添加一个公共方法供外部调用
-  void showAddTodoDialog() {
-    _showAddTodoDialog();
-  }
-
   // 待办事项列表
-  final List<TodoItem> _todos = [
+  final List<TodoItem> _todos = [];
-    // ... 原有的待办事项数据保持不变
-  ];
 
   TodoTab _currentTab = TodoTab.all;
-  final TextEditingController _titleController = TextEditingController();
-  final TextEditingController _descriptionController = TextEditingController();
-  DateTime? _selectedDueDate;
-  TodoPriority _selectedPriority = TodoPriority.medium;
-  String? _selectedCategory;
 
   // 获取过滤后的待办事项
   List<TodoItem> get _activeTodos {
     return getActiveTodos(_currentTab, _todos);
   }
 
+  // 添加一个公共方法供外部调用
+  void showAddTodoDialog() {
+    _showAddTodoDialog();
+  }
+
   @override
   Widget build(BuildContext context) {
     return buildBody(
@@ -79,144 +74,64 @@ class TodoPageState extends State<TodoPage> {
 
   // 显示添加待办事项对话框
   void _showAddTodoDialog() {
-    _resetForm();
+    final store = Provider.of<TodoDialogStore>(context, listen: false);
+    store.reset();
 
     showAwesomeDialog(
       context: context,
-      body: _buildTodoDialogContent(isEditing: false),
+      body: TodoDialog(isEditing: false),
-      onOk: () => _saveTodo(false, null),
+      onOk: () {
-      onCancel: () => _resetForm(),
+        if (store.validate()) {
+          _saveTodo(false, null);
+        }
+      },
+      onCancel: () {
+        store.reset();
+      },
     );
   }
 
   // 显示编辑待办事项对话框
   void _showEditTodoDialog(TodoItem todo) {
-    _titleController.text = todo.title;
+    final store = Provider.of<TodoDialogStore>(context, listen: false);
-    _descriptionController.text = todo.description ?? '';
+    store.initEditData(todo);
-    _selectedDueDate = todo.dueDate;
-    _selectedPriority = todo.priority;
-    _selectedCategory = todo.category;
 
     showAwesomeDialog(
       context: context,
-      body: _buildTodoDialogContent(isEditing: true),
+      body: TodoDialog(isEditing: true, initialTodo: todo),
-      onOk: () => _saveTodo(true, todo),
+      onOk: () {
-      onCancel: () => _resetForm(),
+        if (store.validate()) {
+          _saveTodo(true, todo);
+        }
+      },
+      onCancel: () {
+        store.reset();
+      },
     );
   }
 
-  // 构建待办事项对话框 - 现在使用新的组件
-  Widget _buildTodoDialogContent({bool isEditing = false}) {
-    return TodoDialogContent(
-      isEditing: isEditing,
-      titleController: _titleController,
-      descriptionController: _descriptionController,
-      selectedDueDate: _selectedDueDate,
-      selectedPriority: _selectedPriority,
-      selectedCategory: _selectedCategory,
-      onDueDateChanged: (date) {
-        setState(() {
-          _selectedDueDate = date;
-        });
-      },
-      onPriorityChanged: (priority) {
-        setState(() {
-          _selectedPriority = priority;
-        });
-      },
-      onCategoryChanged: (category) {
-        setState(() {
-          _selectedCategory = category;
-        });
-      },
-      onClearDueDate: () {
-        setState(() {
-          _selectedDueDate = null;
-        });
-        // 重新显示对话框以更新状态
-        if (isEditing) {
-          _showEditTodoDialog(_todos.firstWhere((todo) =>
-          _titleController.text == todo.title &&
-              _descriptionController.text == (todo.description ?? '')));
-        } else {
-          _showAddTodoDialog();
-        }
-      },
-      onSelectDueDate: () => _selectDueDateInDialog(isEditing),
-    );
-  }
-
-  // 在对话框中选择日期
-  Future<void> _selectDueDateInDialog(bool isEditing) async {
-    final DateTime? picked = await showDatePicker(
-      context: context,
-      initialDate: DateTime.now(),
-      firstDate: DateTime.now(),
-      lastDate: DateTime(2100),
-    );
-
-    if (picked != null) {
-      setState(() {
-        _selectedDueDate = picked;
-      });
-      // 重新显示对话框以更新日期显示
-      if (isEditing) {
-        // 找到对应的待办事项重新显示编辑对话框
-        final todo = _todos.firstWhere((todo) =>
-        _titleController.text == todo.title &&
-            _descriptionController.text == (todo.description ?? ''));
-        _showEditTodoDialog(todo);
-      } else {
-        _showAddTodoDialog();
-      }
-    }
-  }
-
-  // 验证表单
-  bool _validateForm() {
-    return _titleController.text.trim().isNotEmpty;
-  }
-
-  // 重置表单
-  void _resetForm() {
-    _titleController.clear();
-    _descriptionController.clear();
-    _selectedDueDate = null;
-    _selectedPriority = TodoPriority.medium;
-    _selectedCategory = null;
-  }
-
   // 保存待办事项
   void _saveTodo(bool isEditing, TodoItem? todo) {
-    if (!_validateForm()) return;
+    final store = Provider.of<TodoDialogStore>(context, listen: false);
 
-    final newTodo = TodoItem(
+    final newTodo = store.createTodoItem(
-      id: isEditing ? todo!.id : DateTime.now().millisecondsSinceEpoch.toString(),
+      id: isEditing ? todo!.id : null,
-      title: _titleController.text.trim(),
+      isCompleted: isEditing ? todo!.isCompleted : false,
-      description: _descriptionController.text.trim().isEmpty
+      createdAt: isEditing ? todo!.createdAt : null,
-          ? null
-          : _descriptionController.text.trim(),
-      dueDate: _selectedDueDate,
-      priority: _selectedPriority,
-      category: _selectedCategory,
     );
 
     setState(() {
       if (isEditing) {
         final index = _todos.indexWhere((t) => t.id == todo!.id);
         if (index != -1) {
-          _todos[index] = newTodo.copyWith(
+          _todos[index] = newTodo;
-            isCompleted: _todos[index].isCompleted,
-          );
         }
       } else {
         _todos.insert(0, newTodo);
       }
     });
 
-    _resetForm();
+    store.reset();
-
-    // 显示成功提示
     _showSuccessDialog(isEditing ? '更新成功' : '添加成功');
   }
 
@@ -245,11 +160,4 @@ class TodoPageState extends State<TodoPage> {
       }
     });
   }
-
-  @override
-  void dispose() {
-    _titleController.dispose();
-    _descriptionController.dispose();
-    super.dispose();
-  }
 }

lib/store/todo_dialog_store.dart

@@ -0,0 +1,82 @@
+import 'package:flutter/material.dart';
+import 'package:flisp_app/models/todo.dart';
+
+class TodoDialogStore extends ChangeNotifier {
+  String _title = '';
+  String _description = '';
+  DateTime? _dueDate;
+  TodoPriority _priority = TodoPriority.medium;
+  String? _category;
+
+  // Getters
+  String get title => _title;
+  String get description => _description;
+  DateTime? get dueDate => _dueDate;
+  TodoPriority get priority => _priority;
+  String? get category => _category;
+
+  // Setters
+  set title(String value) {
+    _title = value;
+    notifyListeners();
+  }
+
+  set description(String value) {
+    _description = value;
+    notifyListeners();
+  }
+
+  set dueDate(DateTime? value) {
+    _dueDate = value;
+    notifyListeners();
+  }
+
+  set priority(TodoPriority value) {
+    _priority = value;
+    notifyListeners();
+  }
+
+  set category(String? value) {
+    _category = value;
+    notifyListeners();
+  }
+
+  // 初始化编辑数据
+  void initEditData(TodoItem todo) {
+    _title = todo.title;
+    _description = todo.description ?? '';
+    _dueDate = todo.dueDate;
+    _priority = todo.priority;
+    _category = todo.category;
+    notifyListeners();
+  }
+
+  // 重置表单数据
+  void reset() {
+    _title = '';
+    _description = '';
+    _dueDate = null;
+    _priority = TodoPriority.medium;
+    _category = null;
+    notifyListeners();
+  }
+
+  // 验证表单
+  bool validate() {
+    return _title.trim().isNotEmpty;
+  }
+
+  // 创建待办事项对象
+  TodoItem createTodoItem({String? id, bool isCompleted = false, DateTime? createdAt}) {
+    return TodoItem(
+      id: id ?? DateTime.now().millisecondsSinceEpoch.toString(),
+      title: _title.trim(),
+      description: _description.trim().isEmpty ? null : _description.trim(),
+      dueDate: _dueDate,
+      priority: _priority,
+      category: _category,
+      isCompleted: isCompleted,
+      createdAt: createdAt ?? DateTime.now(),
+    );
+  }
+}

lib/widgets/todo_dialog.dart

@@ -1,43 +1,80 @@
+import 'package:flisp_app/store/todo_dialog_store.dart';
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
 import 'package:flisp_app/models/todo.dart';
 import 'package:flisp_app/utils/date_utils.dart';
 import 'package:flisp_app/widgets/common.dart';
 
-class TodoDialogContent extends StatefulWidget {
+class TodoDialog extends StatefulWidget {
   final bool isEditing;
-  final TextEditingController titleController;
+  final TodoItem? initialTodo;
-  final TextEditingController descriptionController;
-  final DateTime? selectedDueDate;
-  final TodoPriority selectedPriority;
-  final String? selectedCategory;
-  final Function(DateTime?) onDueDateChanged;
-  final Function(TodoPriority) onPriorityChanged;
-  final Function(String?) onCategoryChanged;
-  final VoidCallback onClearDueDate;
-  final VoidCallback onSelectDueDate;
 
-  const TodoDialogContent({
+  const TodoDialog({
     super.key,
     required this.isEditing,
-    required this.titleController,
+    this.initialTodo,
-    required this.descriptionController,
-    required this.selectedDueDate,
-    required this.selectedPriority,
-    required this.selectedCategory,
-    required this.onDueDateChanged,
-    required this.onPriorityChanged,
-    required this.onCategoryChanged,
-    required this.onClearDueDate,
-    required this.onSelectDueDate,
   });
 
   @override
-  State<TodoDialogContent> createState() => _TodoDialogContentState();
+  State<TodoDialog> createState() => _TodoDialogState();
+}
+
+class _TodoDialogState extends State<TodoDialog> {
+  late TextEditingController _titleController;
+  late TextEditingController _descriptionController;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _titleController = TextEditingController();
+    _descriptionController = TextEditingController();
+
+    // 如果是编辑模式，初始化数据
+    if (widget.isEditing && widget.initialTodo != null) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        final store = Provider.of<TodoDialogStore>(context, listen: false);
+        store.initEditData(widget.initialTodo!);
+      });
+    }
+  }
+
+  @override
+  void dispose() {
+    _titleController.dispose();
+    _descriptionController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _selectDueDate(BuildContext context) async {
+    final DateTime? picked = await showDatePicker(
+      context: context,
+      initialDate: DateTime.now(),
+      firstDate: DateTime.now(),
+      lastDate: DateTime(2100),
+    );
+
+    if (picked != null) {
+      final store = Provider.of<TodoDialogStore>(context, listen: false);
+      store.dueDate = picked;
+    }
   }
 
-class _TodoDialogContentState extends State<TodoDialogContent> {
   @override
   Widget build(BuildContext context) {
+    final store = Provider.of<TodoDialogStore>(context);
+
+    // 同步控制器文本
+    if (_titleController.text != store.title) {
+      _titleController.text = store.title;
+      _titleController.selection = TextSelection.collapsed(offset: store.title.length);
+    }
+
+    if (_descriptionController.text != store.description) {
+      _descriptionController.text = store.description;
+      _descriptionController.selection = TextSelection.collapsed(offset: store.description.length);
+    }
+
     return Padding(
       padding: const EdgeInsets.all(16),
       child: Column(
@@ -62,16 +99,15 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
 
           // 标题输入框
           TextField(
-            controller: widget.titleController,
+            controller: _titleController,
+            onChanged: (value) => store.title = value,
             decoration: InputDecoration(
               labelText: '标题',
               hintText: '请输入待办事项标题...',
               counterText: '',
-              suffixText: '${widget.titleController.text.length}/20',
+              suffixText: '${store.title.length}/20',
               suffixStyle: TextStyle(
-                color: widget.titleController.text.length > 20
+                color: store.title.length > 20 ? Colors.red : Colors.grey,
-                    ? Colors.red
-                    : Colors.grey,
               ),
               border: OutlineInputBorder(
                 borderRadius: BorderRadius.circular(12),
@@ -88,32 +124,25 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
               filled: true,
               fillColor: Colors.white,
               prefixIcon: Icon(Icons.title, color: Colors.black87),
-              contentPadding: EdgeInsets.symmetric(
+              contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 14),
-                horizontal: 16,
-                vertical: 14,
-              ),
             ),
             style: TextStyle(fontSize: 16),
             maxLength: 20,
-            onChanged: (value) {
-              if (mounted) setState(() {});
-            },
           ),
 
           SizedBox(height: 12),
 
           // 描述输入框
           TextField(
-            controller: widget.descriptionController,
+            controller: _descriptionController,
+            onChanged: (value) => store.description = value,
             decoration: InputDecoration(
               labelText: '内容',
               hintText: '请输入待办事项内容...',
               counterText: '',
-              suffixText: '${widget.titleController.text.length}/50',
+              suffixText: '${store.description.length}/50',
               suffixStyle: TextStyle(
-                color: widget.titleController.text.length > 20
+                color: store.description.length > 50 ? Colors.red : Colors.grey,
-                    ? Colors.red
-                    : Colors.grey,
               ),
               border: OutlineInputBorder(
                 borderRadius: BorderRadius.circular(12),
@@ -130,10 +159,7 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
               filled: true,
               fillColor: Colors.white,
               prefixIcon: Icon(Icons.description, color: Colors.black87),
-              contentPadding: EdgeInsets.symmetric(
+              contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 14),
-                horizontal: 16,
-                vertical: 14,
-              ),
             ),
             style: TextStyle(fontSize: 16),
             maxLines: 2,
@@ -148,22 +174,22 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
             child: ListTile(
               leading: Icon(Icons.calendar_today, color: Colors.blue),
               title: Text(
-                widget.selectedDueDate == null
+                store.dueDate == null
                     ? '选择截止日期'
-                    : '截止: ${formatDate(widget.selectedDueDate!)}',
+                    : '截止: ${formatDate(store.dueDate!)}',
                 style: TextStyle(
-                  color: widget.selectedDueDate == null
+                  color: store.dueDate == null ? Colors.grey : Colors.black87,
-                      ? Colors.grey
-                      : Colors.black87,
                 ),
               ),
-              trailing: widget.selectedDueDate != null
+              trailing: store.dueDate != null
                   ? IconButton(
                 icon: Icon(Icons.clear, size: 18),
-                onPressed: widget.onClearDueDate,
+                onPressed: () {
+                  store.dueDate = null;
+                },
               )
                   : null,
-              onTap: widget.onSelectDueDate,
+              onTap: () => _selectDueDate(context),
             ),
           ),
           SizedBox(height: 12),
@@ -175,12 +201,12 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
               leading: Container(
                 padding: EdgeInsets.all(6),
                 decoration: BoxDecoration(
-                  color: widget.selectedPriority.color.withAlpha(10),
+                  color: store.priority.color.withAlpha(10),
                   shape: BoxShape.circle,
                 ),
                 child: Icon(
                   Icons.flag,
-                  color: widget.selectedPriority.color,
+                  color: store.priority.color,
                   size: 18,
                 ),
               ),
@@ -193,7 +219,7 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
                 ),
               ),
               trailing: DropdownButton<TodoPriority>(
-                value: widget.selectedPriority,
+                value: store.priority,
                 underline: SizedBox(),
                 icon: Icon(Icons.arrow_drop_down, color: Colors.grey.shade600),
                 iconSize: 20,
@@ -201,8 +227,7 @@ class _TodoDialogContentState extends State<TodoDialogContent> {
                 borderRadius: BorderRadius.circular(12),
                 onChanged: (value) {
                   if (value != null) {
-                    widget.onPriorityChanged(value);
+                    store.priority = value;
-                    if (mounted) setState(() {});
                   }
                 },
                 items: TodoPriority.values.map((priority) {