Want to persist a List
This is a complete example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | import 'package:flutter/material.dart'; import 'package:shared_preferences/shared_preferences.dart'; void main() { runApp(new MaterialApp( home: new Scaffold( body: new Center( child: new RaisedButton( onPressed: _save, child: new Text('Save my list of int'), ), ), ), )); } _save() async { List<int> myListOfIntegers = [1,2,3,4]; List<String> myListOfStrings= myListOfIntegers.map((i)=>i.toString()).toList(); SharedPreferences prefs = await SharedPreferences.getInstance(); List<String> myList = (prefs.getStringList('mylist') ?? List<String>()) ; List<int> myOriginaList = myList.map((i)=> int.parse(i)).toList(); print('Your list $myOriginaList'); await prefs.setStringList('mylist', myListOfStrings); } |
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