harmony 鸿蒙BaseContext

2025-06-12
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BaseContext

BaseContext is an abstract class that specifies whether a child class Context is used for the stage model or FA model. It is the parent class for all types of Context.

NOTE

The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import { common } from '@kit.AbilityKit';

Attributes

Atomic service API: This API can be used in atomic services since API version 11.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Name	Type	Readable	Writable	Description
stageMode	boolean	Yes	Yes	Whether the child class Context is used for the stage model. true: used for the stage model. false: used for the FA model.

Example

Take the stage model as an example. You can access the stageMode field through UIAbilityContext.

import { UIAbility, AbilityConstant, Want } from '@kit.AbilityKit';

class EntryAbility extends UIAbility {
  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam) {
    // EntryAbility onCreate, isStageMode: true
    console.log(`EntryAbility onCreate, isStageMode: ${this.context.stageMode}`);
  }
}