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@oh-expo/expo-task-manager

v55.0.16-harmony.0

Published

expo-task-manager 的 HarmonyOS 适配包(ExpoModule 原生模块 + TaskManager 任务执行协议,expo-modules-core 体系)

Readme

@oh-expo/expo-task-manager

让 expo-task-manager(后台任务管理)在 HarmonyOS / OpenHarmony 上运行的适配包。

通过 expo-modules-core 体系提供 ExpoTaskManagerModule 原生模块(模块名 ExpoTaskManager)+ TaskManager.executeTask 事件(原生任务执行协议),接口收口自 [email protected] 权威 d.ts。

支持基线

| 项 | 值 | | --- | --- | | 适配目标 | [email protected] | | 运行时底座 | @expo-harmony/[email protected](本地 HAR) | | 鸿蒙 SDK | API 26(SDK 26.0.0 锚定,@kit.AbilityKit + @kit.ArkData preferences + @kit.ArkTS util) | | 权限 | 无 |

实现面

  • 7 方法:isAvailableAsync / notifyTaskFinishedAsync / isTaskRegisteredAsync / getTaskOptionsAsync / getRegisteredTasksAsync / unregisterTaskAsync / unregisterAllTasksAsync + EVENT_NAME 常量;
  • 任务注册表:preferences 持久化 + 注册代次(registrationGeneration)、损坏自愈 (corrupted 记录修复 + 诊断日志);
  • 待执行请求队列:queued/executing/finishing/expiring 四相位状态机 + claim 令牌 + owner 主从选择(前台优先)+ 退避重试(1s→60s 指数抖动)+ 持久化恢复;
  • ExpoTaskManagerBackgroundQueue / ExpoTaskManagerWorkMetadata:WorkScheduler 持久化边界(enqueue/expireRequest + owner 元数据协议),供后台任务消费方使用;
  • 诚实分级:任务执行走 TaskManager.executeTask 事件(JS 侧 TaskManager 订阅); 相位/参数严格校验(ERR_TASK_MANAGER_*)。

快速开始

  1. 安装 npm 包(peer 依赖 expo-task-manager 原包与 expo-modules-core 自动安装):

    npm install @oh-expo/expo-task-manager
  2. 拷贝 HAR 到宿主并声明 ohpm 依赖:

    cp node_modules/@oh-expo/expo-task-manager/local-hars/expo_task_manager.har harmony/local-hars/
    // harmony/oh-package.json5
    { "dependencies": { "@oh-expo/expo-task-manager": "file:local-hars/expo_task_manager.har" } }
  3. JS 侧使用(对外契约由原包提供):

    import * as TaskManager from 'expo-task-manager';

构建与校验

pnpm har:prepare    # hvigorw assembleHar → local-hars/expo_task_manager.har
pnpm har:prepack    # 发布前校验(必需文件 / scope / -harmony.N 版本 / HAR 产物)

状态与来源

  • ⚠️ 实现已落盘并经 assembleHar / 宿主接入编译验证(真机功能验证 ⏳);
  • 接口契约锚定 [email protected] 权威 d.ts,规格见主仓 docs/adaptations/expo-task-manager.md 与 acceptance/ledger.md(S4 前置门口径)。