@ohos.bundleState (Device Usage Statistics) (System API)

This module provides APIs for collecting statistics on device usage.

System applications can call these APIs to implement the following features:

• Query the usage duration in different time segments, events (foreground, background, start and end of continuous tasks), and the number of notifications, on a per application basis.
• Query the bundle group information of the invoking application itself.
• Query the idle status of applications, including the invoking application itself.

NOTE

This module is deprecated since API version 9. You are advised to use @ohos.resourceschedule.usageStatistics (Device Usage Statistics) (System API) instead.

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.

This topic describes only system APIs provided by the module. For details about its public APIs, see @ohos.bundleState.

Modules to Import

import bundleState from '@ohos.bundleState'

bundleState.queryBundleStateInfos

queryBundleStateInfos(begin: number, end: number, callback: AsyncCallback<BundleActiveInfoResponse>): void

Queries the application usage duration statistics based on the specified start time and end time. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.BUNDLE_ACTIVE_INFO

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
begin	number	Yes	Start time, in milliseconds.
end	number	Yes	End time, in milliseconds.
callback	AsyncCallback<BundleActiveInfoResponse>	Yes	Callback used to return the application usage duration statistics.

Example

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

bundleState.queryBundleStateInfos(0, 20000000000000, (err: BusinessError ,
  res: bundleState.BundleActiveInfoResponse ) => {
  if (err) {
    console.error('BUNDLE_ACTIVE queryBundleStateInfos callback failed, because: ' + err.code);
  } else {
    console.log('BUNDLE_ACTIVE queryBundleStateInfos callback success.');
    console.log('BUNDLE_ACTIVE queryBundleStateInfos callback result ' + JSON.stringify(res));
  }
});

bundleState.queryBundleStateInfos

queryBundleStateInfos(begin: number, end: number): Promise<BundleActiveInfoResponse>

Queries the application usage duration statistics based on the specified start time and end time. This API uses a promise to return the result.

Required permissions: ohos.permission.BUNDLE_ACTIVE_INFO

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

System API: This is a system API.

Parameters

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

Return value

Type	Description
Promise<BundleActiveInfoResponse>	Promise used to return the result. return the application usage duration statistics.

Example

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

bundleState.queryBundleStateInfos(0, 20000000000000).then((res: bundleState.BundleActiveInfoResponse) => {
  console.log('BUNDLE_ACTIVE queryBundleStateInfos promise success.');
  console.log('BUNDLE_ACTIVE queryBundleStateInfos promise result ' + JSON.stringify(res));
}).catch((err: BusinessError) => {
  console.error('BUNDLE_ACTIVE queryBundleStateInfos promise failed, because: ' + err.code);
});

bundleState.queryBundleStateInfoByInterval

queryBundleStateInfoByInterval(byInterval: IntervalType, begin: number, end: number, callback: AsyncCallback<Array<BundleStateInfo>>): void

Queries the application usage duration statistics in the specified time frame at the specified interval (daily, weekly, monthly, or annually). This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.BUNDLE_ACTIVE_INFO

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
byInterval	IntervalType	Yes	Type of information to be queried.
begin	number	Yes	Start time, in milliseconds.
end	number	Yes	End time, in milliseconds.
callback	AsyncCallback<Array<BundleStateInfo>>	Yes	Callback used to return the application usage duration statistics.

Example

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

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

bundleState.queryBundleStateInfoByInterval

queryBundleStateInfoByInterval(byInterval: IntervalType, begin: number, end: number): Promise<Array<BundleStateInfo>>

Queries the application usage duration statistics in the specified time frame at the specified interval (daily, weekly, monthly, or annually). This API uses a promise to return the result.

Required permissions: ohos.permission.BUNDLE_ACTIVE_INFO

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
byInterval	IntervalType	Yes	Type of information to be queried.
begin	number	Yes	Start time, in milliseconds.
end	number	Yes	End time, in milliseconds.

Return value

Type	Description
Promise<Array<BundleStateInfo>>	Promise used to return the application usage duration statistics.

Example

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

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

bundleState.queryBundleActiveStates

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

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

Required permissions: ohos.permission.BUNDLE_ACTIVE_INFO

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

System API: This is a system API.

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

bundleState.queryBundleActiveStates

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

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

Required permissions: ohos.permission.BUNDLE_ACTIVE_INFO

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

System API: This is a system API.

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 result. return the events obtained.

Example

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

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

System API: This is a system API.

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

System API: This is a system API.

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

System API: This is a system API.

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.

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

System API: This is a system API.

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.

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.

Properties

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

Name	Type	Mandatory	Description
bundleName	string	No	Bundle name of the application.
abilityPrevAccessTime	number	No	Last time when the application was used.
abilityInFgTotalTime	number	No	Total time that the application runs in the foreground.
id	number	Yes	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.

System capability: SystemCapability.ResourceSchedule.UsageStatistics.App

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

BundleActiveInfoResponse

Provides the usage duration information of an application.

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 queries the application usage duration statistics in the specified time frame on a daily basis.
BY_WEEKLY	2	The system queries the application usage duration statistics in the specified time frame on a weekly basis.
BY_MONTHLY	3	The system queries the application usage duration statistics in the specified time frame on a monthly basis.
BY_ANNUALLY	4	The system queries the application usage duration statistics in the specified time frame on an annual basis.

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