@ohos.bundleState (Device Usage Statistics)

This module provides APIs for collecting statistics on device usage.

NOTE

The APIs of this module are deprecated since API version 9. The substitute APIs are open only to system applications.

The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import bundleState from '@ohos.bundleState'

bundleState.isIdleState

isIdleState(bundleName: string, callback: AsyncCallback<boolean>): void

Checks whether the application specified by bundleName is in the idle state. This API uses an asynchronous callback to return the result. By default, a third-party application can only check the idle state of itself. To query the idle state of other applications, it must request the ohos.permission.BUNDLE_ACTIVE_INFO permission.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.AppGroup

Parameters

Name Type Mandatory Description
bundleName string Yes Bundle name of an application.
callback AsyncCallback<boolean> Yes Callback used to return the result. If the specified bundleName is valid, the idle state of the application is returned; otherwise, null is returned.

Example

import { BusinessError } from '@ohos.base';

bundleState.isIdleState("com.ohos.camera", (err: BusinessError, res: boolean) => {
  if (err) {
    console.error('BUNDLE_ACTIVE isIdleState callback failed, because: ' + err.code);
  } else {
    console.log('BUNDLE_ACTIVE isIdleState callback succeeded, result: ' + JSON.stringify(res));
  }
});

bundleState.isIdleState

isIdleState(bundleName: string): Promise<boolean>

Checks whether the application specified by bundleName is in the idle state. This API uses a promise to return the result. By default, a third-party application can only check the idle state of itself. To query the idle state of other applications, it must request the ohos.permission.BUNDLE_ACTIVE_INFO permission.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.AppGroup

Parameters

Name Type Mandatory Description
bundleName string Yes Bundle name of an application.

Return value

Type Description
Promise<boolean> Promise used to return the result. If the specified bundleName is valid, the idle state of the application is returned; otherwise, null is returned.

Example

import { BusinessError } from '@ohos.base';

bundleState.isIdleState("com.ohos.camera").then((res: boolean) => {
  console.log('BUNDLE_ACTIVE isIdleState promise succeeded, result: ' + JSON.stringify(res));
}).catch((err: BusinessError) => {
  console.error('BUNDLE_ACTIVE isIdleState promise failed, because: ' + err.code);
});

bundleState.queryAppUsagePriorityGroup

queryAppUsagePriorityGroup(): Promise<number>

Queries the priority group of this application. This API uses a promise to return the result.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.AppGroup

Return value

Type Description
Promise<number> Promise used to return the priority group.

Example

import { BusinessError } from '@ohos.base';

bundleState.queryAppUsagePriorityGroup().then((res: number) => {
  console.log('BUNDLE_ACTIVE QueryPackageGroup promise succeeded. result: ' + JSON.stringify(res));
}).catch((err: BusinessError) => {
  console.error('BUNDLE_ACTIVE QueryPackageGroup promise failed. because: ' + err.code);
});

bundleState.queryAppUsagePriorityGroup

queryAppUsagePriorityGroup(callback: AsyncCallback<number>): void

Queries the priority group of this application. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.AppGroup

Parameters

Name Type Mandatory Description
callback AsyncCallback<number> Yes Callback used to return the priority group.

Example

import { BusinessError } from '@ohos.base';

bundleState.queryAppUsagePriorityGroup((err: BusinessError, res: number) => {
  if(err) {
    console.error('BUNDLE_ACTIVE QueryPackageGroup callback failed. because: ' + err.code);
  } else {
    console.log('BUNDLE_ACTIVE QueryPackageGroup callback succeeded. result: ' + JSON.stringify(res));
  }
});

bundleState.queryCurrentBundleActiveStates

queryCurrentBundleActiveStates(begin: number, end: number, callback: AsyncCallback<Array<BundleActiveState>>): void

Queries events of this application based on the specified start time and end time. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Parameters

Name Type Mandatory Description
begin number Yes Start time, in milliseconds.
end number Yes End time, in milliseconds.
callback AsyncCallback<Array<BundleActiveState>> Yes Callback used to return the events obtained.

Example

import { BusinessError } from '@ohos.base';

bundleState.queryCurrentBundleActiveStates(0, 20000000000000, (err: BusinessError, res: Array<bundleState.BundleActiveState>) => {
  if (err) {
    console.error('BUNDLE_ACTIVE queryCurrentBundleActiveStates callback failed, because: ' + err.code);
  } else {
    console.log('BUNDLE_ACTIVE queryCurrentBundleActiveStates callback success.');
    for (let i = 0; i < res.length; i++) {
      console.log('BUNDLE_ACTIVE queryCurrentBundleActiveStates callback number : ' + (i + 1));
      console.log('BUNDLE_ACTIVE queryCurrentBundleActiveStates callback result ' + JSON.stringify(res[i]));
    }
  }
});

bundleState.queryCurrentBundleActiveStates

queryCurrentBundleActiveStates(begin: number, end: number): Promise<Array<BundleActiveState>>

Queries events of this application based on the specified start time and end time. This API uses a promise to return the result.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Parameters

Name Type Mandatory Description
begin number Yes Start time, in milliseconds.
end number Yes End time, in milliseconds.

Return value

Type Description
Promise<Array<BundleActiveState>> Promise used to return the events obtained.

Example

import { BusinessError } from '@ohos.base';

bundleState.queryCurrentBundleActiveStates(0, 20000000000000).then((res: Array<bundleState.BundleActiveState>) => {
  console.log('BUNDLE_ACTIVE queryCurrentBundleActiveStates promise success.');
  for (let i = 0; i < res.length; i++) {
    console.log('BUNDLE_ACTIVE queryCurrentBundleActiveStates promise number : ' + (i + 1));
    console.log('BUNDLE_ACTIVE queryCurrentBundleActiveStates promise result ' + JSON.stringify(res[i]));
  }
}).catch((err: BusinessError) => {
  console.error('BUNDLE_ACTIVE queryCurrentBundleActiveStates promise failed, because: ' + err.code);
});

BundleStateInfo

Provides the usage duration information of an application.

Attributes

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Name Type Mandatory Description
bundleName string Yes Bundle name of an application.
abilityPrevAccessTime number Yes Last time when the application was used.
abilityInFgTotalTime number Yes Total time that the application runs in the foreground.
id number No User ID.
abilityPrevSeenTime number No Last time when the application was visible in the foreground.
abilitySeenTotalTime number No Total time that the application is visible in the foreground.
fgAbilityAccessTotalTime number No Total time that the application accesses the foreground.
fgAbilityPrevAccessTime number No Last time when the application accessed the foreground.
infosBeginTime number No Time logged in the first application usage record in the BundleActiveInfo object.
infosEndTime number No Time logged in the last application usage record in the BundleActiveInfo object.

merge(deprecated)

merge(toMerge: BundleStateInfo): void

Merges the device usage statistics of applications with the same bundle name.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Parameters

Name Type Mandatory Description
toMerge BundleStateInfo Yes Device usage statistics to merge.

BundleActiveState

Provides information about an application event.

Provides the usage duration information of applications.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Name Type Mandatory Description
bundleName string Yes Bundle name of an application.
stateType number Yes Application event type.
stateOccurredTime number Yes Timestamp when the application event occurs.
appUsagePriorityGroup number No Usage priority group of the application.
indexOfLink string No Shortcut ID.
nameOfClass string No Class name.

BundleActiveInfoResponse

Provides the usage duration information of applications.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Name Type Mandatory Description
[key: string]: BundleStateInfo [key: string]: BundleStateInfo Yes Usage duration information by application.

IntervalType

Enumerates the interval types for querying the application usage duration.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Name Value Description
BY_OPTIMIZED 0 The system obtains the application usage duration statistics in the specified time frame at the interval the system deems appropriate.
BY_DAILY 1 The system obtains the application usage duration statistics in the specified time frame on a daily basis.
BY_WEEKLY 2 The system obtains the application usage duration statistics in the specified time frame on a weekly basis.
BY_MONTHLY 3 The system obtains the application usage duration statistics in the specified time frame on a monthly basis.
BY_ANNUALLY 4 The system obtains the application usage duration statistics in the specified time frame on an annual basis.