43 lines
1.4 KiB
Dart
43 lines
1.4 KiB
Dart
import 'dart:developer';
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import 'dart:io';
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import 'package:elysia/plugin/MD5.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:hive_flutter/hive_flutter.dart';
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import '../bean/Mappable.dart';
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class HiverCache {
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static late Box box;
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static Future<void> init(String userName) async {
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userName = MD5(userName).toString();
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final cache = await getApplicationCacheDirectory();
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final cacheDir = Directory("${cache.path}/user_data/");
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if (!await cacheDir.exists()) {
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await cacheDir.create(recursive: true);
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}
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await Hive.initFlutter(cacheDir.path.toString());
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await Hive.openBox(userName);
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box = Hive.box(userName);
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}
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/// 存储 List<Mappable>，内部自动转 Map
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static Future<void> cache<T extends Mappable>(String warehouse, List<T> data) async {
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List<Map<String, dynamic>> mapList = data.map((e) => e.toMap()).toList();
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await box.delete(warehouse);
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await box.flush();
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await box.put(warehouse, mapList);
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await HiverCache.box.flush();
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await HiverCache.box.compact();
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}
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/// 获取 List<Mappable>，需要传入 fromMap 函数
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static Future<List<T>?> getCache<T>(String warehouse, T Function(Map<String, dynamic>) fromMap) async {
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List? mapList = box.get(warehouse) as List?;
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if (mapList == null) return null;
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return mapList.map((e) => fromMap(Map<String, dynamic>.from(e))).toList();
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}
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}
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