harmony 鸿蒙AbilityStartCallback

2025-06-12
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AbilityStartCallback

The AbilityStartCallback module describes the callback invoked to return the UIExtensionAbility startup result.

NOTE

The initial APIs of this module are supported since API version 11. Newly added APIs will be marked with a superscript to indicate their earliest API version.

The APIs of this module can be used only in the stage model.

Since API version 11, the APIs of this module are supported in atomic services.

Modules to Import

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

AbilityStartCallback

onError

onError(code: number, name: string, message: string): void

Called when the UIExtensionAbility fails to start.

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

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
code	number	Yes	Result code returned when the UIExtensionAbility fails to start.
name	string	Yes	Name returned when the UIExtensionAbility fails to start.
message	string	Yes	Error information returned when the UIExtensionAbility fails to start.

Example

import { UIAbility, common } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';

export default class EntryAbility extends UIAbility {
  onForeground() {
    let wantParam: Record<string, Object> = {
      'time': '2023-10-23 20:45',
    };
    let abilityStartCallback: common.AbilityStartCallback = {
      onError: (code: number, name: string, message: string) => {
        console.log(`code:` + code + `name:` + name + `message:` + message);
      },
      onResult: (abilityResult: common.AbilityResult) => {
        console.log(`resultCode:` + abilityResult.resultCode + `bundleName:` + abilityResult.want?.bundleName);
      }
    };

    this.context.startAbilityByType("photoEditor", wantParam, abilityStartCallback, (err: BusinessError) => {
      if (err) {
        console.error(`startAbilityByType fail, err: ${JSON.stringify(err)}`);
      } else {
        console.log(`success`);
      }
    });
  }
}

onResult¹²⁺

onResult?(parameter: AbilityResult): void

Called when the UIExtensionAbility is terminated.

Atomic service API: This API can be used in atomic services since API version 12.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
parameter	AbilityResult	Yes	Result returned when terminateSelfWithResult is called to terminate the UIExtensionAbility.

Example

import { UIAbility, common } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';

export default class EntryAbility extends UIAbility {
  onForeground() {
    let wantParam: Record<string, Object> = {
      'time': '2023-10-23 20:45',
    };
    let abilityStartCallback: common.AbilityStartCallback = {
      onError: (code: number, name: string, message: string) => {
        console.log(`code:` + code + `name:` + name + `message:` + message);
      },
      onResult: (abilityResult: common.AbilityResult) => {
        console.log(`resultCode:` + abilityResult.resultCode + `bundleName:` + abilityResult.want?.bundleName);
      }
    };

    this.context.startAbilityByType("photoEditor", wantParam, abilityStartCallback, (err: BusinessError) => {
      if (err) {
        console.error(`startAbilityByType fail, err: ${JSON.stringify(err)}`);
      } else {
        console.log(`success`);
      }
    });
  }
}