Spark
6 days ago
parent
bbf70c81c6
commit
fc613ee961
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After Width: | Height: | Size: 4.5 KiB |
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Before Width: | Height: | Size: 4.5 KiB After Width: | Height: | Size: 299 KiB |
@ -1,65 +0,0 @@
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import 'dart:convert';
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import 'package:shared_preferences/shared_preferences.dart';
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class PasswordManager {
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static const String PREFS_KEY = 'stored_password';
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late SharedPreferences _prefs;
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// 单例模式
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static final PasswordManager _instance = PasswordManager._internal();
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factory PasswordManager() {
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return _instance;
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}
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PasswordManager._internal();
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// 初始化
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Future<void> init() async {
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_prefs = await SharedPreferences.getInstance();
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}
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// 存储账号密码
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Future<void> savePassword(String username, String password) async {
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final Map<String, String> credentials = {
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'username': username,
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'password': password,
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};
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await _prefs.setString(PREFS_KEY, json.encode(credentials));
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}
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// 获取存储的账号密码
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Map<String, String>? getStoredCredentials() {
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final String? storedData = _prefs.getString(PREFS_KEY);
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if (storedData != null) {
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final Map<String, String> decoded = json.decode(storedData);
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return {
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'username': decoded['username'] as String,
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'password': decoded['password'] as String,
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};
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}
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return null;
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}
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// 检查是否有存储的密码
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bool hasStoredPassword() {
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return _prefs.containsKey(PREFS_KEY);
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}
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// 移除存储的账号密码
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Future<void> removePassword() async {
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await _prefs.remove(PREFS_KEY);
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}
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// 获取存储的用户名
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String? getStoredUsername() {
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final credentials = getStoredCredentials();
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return credentials?['username'];
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}
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// 获取存储的密码
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String? getStoredPassword() {
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final credentials = getStoredCredentials();
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return credentials?['password'];
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}
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}
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