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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:shared_preferences/shared_preferences.dart'; | ||
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| class FavouriteScreenProvider with ChangeNotifier { | ||
| bool _drawingBoard = false; | ||
| bool get drawingBoard => _drawingBoard; | ||
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| List<int> _selectedItemList = []; | ||
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| List<int> get selectedItemList => _selectedItemList; | ||
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| FavouriteScreenProvider() { | ||
| loadFromPrefs(); | ||
| } | ||
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| void setDrawingBoard() { | ||
| _drawingBoard = !_drawingBoard; | ||
| notifyListeners(); | ||
| saveToPrefs(); | ||
| } | ||
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| void setList(int item) { | ||
| _selectedItemList.add(item); | ||
| notifyListeners(); | ||
| saveToPrefs(); | ||
| } | ||
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| void removeList(int item) { | ||
| _selectedItemList.remove(item); | ||
| notifyListeners(); | ||
| saveToPrefs(); | ||
| } | ||
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| Future<void> loadFromPrefs() async { | ||
| final prefs = await SharedPreferences.getInstance(); | ||
| _drawingBoard = prefs.getBool('drawingBoard') ?? false; | ||
| _selectedItemList = prefs | ||
| .getStringList('selectedItemList') | ||
| ?.map((e) => int.parse(e)) | ||
| .toList() ?? | ||
| []; | ||
| notifyListeners(); | ||
| } | ||
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| Future<void> saveToPrefs() async { | ||
| final prefs = await SharedPreferences.getInstance(); | ||
| await prefs.setBool('drawingBoard', _drawingBoard); | ||
| await prefs.setStringList('selectedItemList', | ||
| _selectedItemList.map((e) => e.toString()).toList()); | ||
| } | ||
| } |
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