126 lines
3.9 KiB
Dart
126 lines
3.9 KiB
Dart
import 'dart:convert';
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import 'package:hgdj/hj_utils/text_util.dart';
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import 'package:mmkv/mmkv.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../tools_base/debug_log.dart';
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/// 轻量级别存储模型(kv键值对)内部包含文件和内存缓存
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final lightKV = _LightModel();
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class _LightModel {
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MMKV? mmkv;
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/// MMKV 不可用时的兜底：iOS release 包 FFI 符号被 strip，MMKV 初始化抛 symbol not found，
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/// 会导致本地存储静默读写失败（如锁屏密码设置不上）。SharedPreferences 走 method channel，
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/// 不依赖 FFI，作为兜底保证纯本地功能可用。
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SharedPreferences? _prefs;
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bool get _useMmkv => mmkv != null;
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Future config() async {
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await init();
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}
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init() async {
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if (mmkv != null || _prefs != null) return; // 已初始化（任一可用），避免重复
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try {
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final rootDir = await MMKV.initialize();
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mmkv = MMKV.defaultMMKV(); // iOS release 若符号被 strip，这里会抛 symbol not found
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debugLog('MMKV for flutter with rootDir = $rootDir');
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} catch (e, s) {
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// 兜底：MMKV 初始化失败不能把 main()/启动流程带崩，否则会卡在启动页
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debugLog('MMKV init FAILED >>> $e\n$s');
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}
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// MMKV 起不来就启用 SharedPreferences 兜底
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if (mmkv == null) {
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try {
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_prefs = await SharedPreferences.getInstance();
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debugLog('MMKV unavailable, fallback to SharedPreferences');
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} catch (e, s) {
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debugLog('SharedPreferences init FAILED >>> $e\n$s');
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}
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}
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}
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void remove(String key) async {
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await init();
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if (_useMmkv) {
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mmkv?.removeValue(key);
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} else {
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await _prefs?.remove(key);
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}
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}
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Future<String?> getString(String key) async {
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await init();
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if (TextUtil.isEmpty(key)) return null;
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if (_useMmkv) return mmkv?.decodeString(key);
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return _prefs?.getString(key);
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}
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Future<bool?> setString(String key, String? value,
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[bool genNewKey = true]) async {
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await init();
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if (TextUtil.isEmpty(key)) return false;
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if (_useMmkv) return mmkv?.encodeString(key, value);
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if (value == null) return await _prefs?.remove(key);
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return await _prefs?.setString(key, value);
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}
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Future<int?> getInt(String? key) async {
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await init();
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if (TextUtil.isEmpty(key!)) return null;
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if (_useMmkv) return mmkv?.decodeInt(key);
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return _prefs?.getInt(key);
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}
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Future<bool?> setInt(String key, int value) async {
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await init();
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if (TextUtil.isEmpty(key)) return false;
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if (_useMmkv) return mmkv?.encodeInt(key, value);
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return await _prefs?.setInt(key, value);
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}
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Future<bool?> getBool(String? key, {bool defaultValue = false}) async {
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await init();
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if (TextUtil.isEmpty(key!)) return null;
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if (_useMmkv) return mmkv?.decodeBool(key, defaultValue: defaultValue);
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return _prefs?.getBool(key) ?? defaultValue;
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}
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Future<bool?> setBool(String key, bool value) async {
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await init();
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if (TextUtil.isEmpty(key)) return false;
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if (_useMmkv) return mmkv?.encodeBool(key, value);
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return await _prefs?.setBool(key, value);
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}
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Future<List<String>?> getStringList(String key,
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[bool genNewKey = true]) async {
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await init();
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if (TextUtil.isEmpty(key)) return null;
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if (_useMmkv) {
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var jsonS = mmkv?.decodeString(key);
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if (jsonS?.isNotEmpty == true) {
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return parseStringList(json.decode(jsonS!));
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}
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return <String>[];
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}
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return _prefs?.getStringList(key) ?? <String>[];
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}
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///
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Future<bool?> setStringList(String key, List<String> list,
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[bool genNewKey = true]) async {
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await init();
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if (TextUtil.isEmpty(key)) return false;
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if (_useMmkv) {
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if (list.isEmpty) return mmkv?.encodeString(key, null);
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return mmkv?.encodeString(key, json.encode(list));
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}
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return await _prefs?.setStringList(key, list);
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}
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}
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