# Background Tasks Kit<!--background-tasks-api-->

- ArkTS API<!--background-tasks-arkts-->
  - [@ohos.reminderAgentManager (Reminder Agent Management)](js-apis-reminderAgentManager.md)
  - [@ohos.resourceschedule.backgroundTaskManager (Background Task Management)](js-apis-resourceschedule-backgroundTaskManager.md)
  - [@ohos.resourceschedule.workScheduler (Deferred Task Scheduling)](js-apis-resourceschedule-workScheduler.md)
  - [@ohos.WorkSchedulerExtensionAbility (Deferred Task Scheduling Callbacks)](js-apis-WorkSchedulerExtensionAbility.md)
  - [@ohos.resourceschedule.backgroundProcessManager (Background Child Process Management)](js-apis-backgroundProcessManager.md)
  <!--Del-->
  - [@ohos.reminderAgentManager (Reminder Agent Management) (System API)](js-apis-reminderAgentManager-sys.md)
  - [@ohos.resourceschedule.backgroundTaskManager (Background Task Management) (System API)](js-apis-resourceschedule-backgroundTaskManager-sys.md)
  - [@ohos.resourceschedule.deviceStandby (Device Standby) (System API)](js-apis-resourceschedule-deviceStandby-sys.md)
  - [@ohos.resourceschedule.usageStatistics (Device Usage Statistics) (System API)](js-apis-resourceschedule-deviceUsageStatistics-sys.md)
  <!--DelEnd-->
  - application<!--background-tasks-arkts-application-->
    - [WorkSchedulerExtensionContext](js-apis-inner-application-WorkSchedulerExtensionContext.md)
    <!--Del-->
    - [WorkSchedulerExtensionContext (System API)](js-apis-inner-application-WorkSchedulerExtensionContext-sys.md)
    <!--DelEnd-->
  - APIs No Longer Maintained<!--background-tasks-arkts-dep-->
    - [@ohos.backgroundTaskManager (Background Task Management)](js-apis-backgroundTaskManager.md)
    - [@ohos.bundleState (Device Usage Statistics)](js-apis-deviceUsageStatistics.md)
    - [@ohos.reminderAgent (Reminder Agent)](js-apis-reminderAgent.md)
    <!--Del-->
    - [@ohos.backgroundTaskManager (Background Task Management) (System API)](js-apis-backgroundTaskManager-sys.md)
    - [@ohos.bundleState (Device Usage Statistics) (System API)](js-apis-deviceUsageStatistics-sys.md)
    <!--DelEnd-->
- C API<!--background-tasks-c-->
  - Modules<!--background-tasks-module-->
    - [TransientTask](_transient_task.md)
    - [BackgroundProcessManager](_background_process_manager.md)
  - Header Files<!--background-tasks-headerfile-->
    - [transient_task_api.h](transient__task__api_8h.md)
    - [transient_task_type.h](transient__task__type_8h.md)
    - [background_process_manager.h](background__process__manager_8h.md)
  - Structs<!--background-tasks-struct-->
    - [TransientTask_DelaySuspendInfo](_transient_task___delay_suspend_info.md)
- Error Codes<!--background-tasks-arkts-errcode-->
  - [backgroundTaskManager Error Codes](errorcode-backgroundTaskMgr.md)
  - [DeviceUsageStatistics Error Codes](errorcode-DeviceUsageStatistics.md)
  - [reminderAgentManager Error Codes](errorcode-reminderAgentManager.md)
  - [workScheduler Error Codes](errorcode-workScheduler.md)
  - [BackgroundProcessManager Error Codes](errorcode-backgroundProcessManager.md)