37 lines
1.1 KiB
Dart
37 lines
1.1 KiB
Dart
import 'dart:convert';
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import 'package:shared_preferences/shared_preferences.dart';
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class MyShared {
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static saveString(String key, String value) async {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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prefs.setString(key, value);
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}
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static Future<String?>? readString(String key) async {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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final String? source = prefs.getString(key);
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return source;
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}
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static saveJson(String key, Map value) async {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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prefs.setString(key, json.encode(value));
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}
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static Future<Map?>? readJson(String key) async {
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try {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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final String? source = prefs.getString(key);
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if (source == null) {
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return null;
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}
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final decodedJson = json.decoder.convert(source);
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//var decodedJson = json.decode(source);
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return decodedJson;
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} catch (err) {
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return null;
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}
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}
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}
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