60 lines
1.6 KiB
Dart
60 lines
1.6 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'dart:convert';
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import 'ToDoItem.dart';
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class ToDoProvider with ChangeNotifier {
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List<ToDoItem> _toDoList = [];
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List<ToDoItem> get toDoList => _toDoList;
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ToDoProvider() {
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_loadFromPrefs();
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}
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void addToDo(ToDoItem item) {
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_toDoList.add(item);
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_saveToPrefs();
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notifyListeners();
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}
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void updateStatus(int index, String status) {
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_toDoList[index].status = status;
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_saveToPrefs();
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notifyListeners();
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}
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// Save To-Do list to shared preferences as JSON
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Future<void> _saveToPrefs() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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List<Map<String, dynamic>> jsonData = _toDoList.map((item) => item.toJson()).toList();
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await prefs.setString('toDoList', json.encode(jsonData));
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}
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// Load To-Do list from shared preferences as JSON
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Future<void> _loadFromPrefs() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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String? toDoData = prefs.getString('toDoList');
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if (toDoData != null) {
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List<dynamic> jsonData = json.decode(toDoData);
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_toDoList = jsonData.map((item) => ToDoItem.fromJson(item)).toList();
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}
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notifyListeners();
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}
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void sortByName() {
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_toDoList.sort((a, b) => a.name.compareTo(b.name));
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notifyListeners();
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}
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void sortByDueDate() {
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_toDoList.sort((a, b) => a.dueDate.compareTo(b.dueDate));
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notifyListeners();
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}
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void sortByStatus() {
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_toDoList.sort((a, b) => a.status.compareTo(b.status));
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notifyListeners();
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}
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}
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