@ohos.file.storageStatistics (Application Storage Statistics)

The storageStatistics module provides APIs for obtaining storage space information, including the space of built-in and plug-in memory cards, space occupied by different types of data, and space of application data.

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 storageStatistics from "@ohos.file.storageStatistics";

storageStatistics.getTotalSizeOfVolume

getTotalSizeOfVolume(volumeUuid: string): Promise<number>

Obtains the total size (in bytes) of the specified volume in an external storage device. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let uuid: string = "";
  storageStatistics.getTotalSizeOfVolume(uuid).then((number: number) => {
    console.info("getTotalSizeOfVolume successfully:" + number);
  }).catch((err: BusinessError) => {
    console.info("getTotalSizeOfVolume failed with error:" + JSON.stringify(err));
  });

storageStatistics.getTotalSizeOfVolume

getTotalSizeOfVolume(volumeUuid: string, callback: AsyncCallback<number>): void

Obtains the total size (in bytes) of the specified volume in an external storage device. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let uuid: string = "";
  storageStatistics.getTotalSizeOfVolume(uuid, (error: BusinessError, number: number) => {
    // Do something.
    console.info("getTotalSizeOfVolume successfully:" + number);
  });

storageStatistics.getFreeSizeOfVolume

getFreeSizeOfVolume(volumeUuid: string): Promise<number>

Obtains the available space (in bytes) of the specified volume in an external storage device. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let uuid: string = "";
  storageStatistics.getFreeSizeOfVolume(uuid).then((number: number) => {
    console.info("getFreeSizeOfVolume successfully:" + number);
  }).catch((err: BusinessError) => {
    console.info("getFreeSizeOfVolume failed with error:" + JSON.stringify(err));
  });

storageStatistics.getFreeSizeOfVolume

getFreeSizeOfVolume(volumeUuid: string, callback: AsyncCallback<number>): void

Obtains the available space (in bytes) of the specified volume in an external storage device. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let uuid: string = "";
  storageStatistics.getFreeSizeOfVolume(uuid, (error: BusinessError, number: number) => {
    // Do something.
    console.info("getFreeSizeOfVolume successfully: " + number);
  });

storageStatistics.getBundleStats⁹⁺

getBundleStats(packageName: string): Promise<BundleStats>

Obtains the space (in bytes) of an application. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let packageName: string = "";
  storageStatistics.getBundleStats(packageName).then((BundleStats: storageStatistics.Bundlestats) => {
    console.info("getBundleStats successfully:" + JSON.stringify(BundleStats));
  }).catch((err: BusinessError) => {
    console.info("getBundleStats failed with error:" + JSON.stringify(err));
  });

storageStatistics.getBundleStats⁹⁺

getBundleStats(packageName: string, callback: AsyncCallback<BundleStats>): void

Obtains the space (in bytes) of an application. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let packageName: string = "";
  storageStatistics.getBundleStats(packageName, (error: BusinessError, BundleStats: storageStatistics.Bundlestats) => {
    // Do something.
    console.info("getBundleStats successfully:" + JSON.stringify(BundleStats));
  });

storageStatistics.getCurrentBundleStats⁹⁺

getCurrentBundleStats(): Promise<BundleStats>

Obtains the space (in bytes) of this third-party application. This API uses a promise to return the result.

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getCurrentBundleStats().then((BundleStats: storageStatistics.Bundlestats) => {
    console.info("getCurrentBundleStats successfully:" + JSON.stringify(BundleStats));
  }).catch((err: BusinessError) => {
    console.info("getCurrentBundleStats failed with error:"+ JSON.stringify(err));
  });

storageStatistics.getCurrentBundleStats⁹⁺

getCurrentBundleStats(callback: AsyncCallback<BundleStats>): void

Obtains the space (in bytes) of this third-party application. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getCurrentBundleStats((error: BusinessError, bundleStats: storageStatistics.Bundlestats) => {
    // Do something.
    console.info("getCurrentBundleStats successfully:" + JSON.stringify(bundleStats));
  });

BundleStats⁹⁺

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

storageStatistics.getTotalSize⁹⁺

getTotalSize(): Promise<number>

Obtains the total size (in bytes) of the built-in storage. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getTotalSize().then((number: number) => {
    console.info("getTotalSize successfully:" + JSON.stringify(number));
  }).catch((err: BusinessError) => {
    console.info("getTotalSize failed with error:"+ JSON.stringify(err));
  });

storageStatistics.getTotalSize⁹⁺

getTotalSize(callback: AsyncCallback<number>): void

Obtains the total size (in bytes) of the built-in storage. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getTotalSize((error: BusinessError, number: number) => {
    // Do something.
    console.info("getTotalSize successfully:"+ JSON.stringify(number));
  });

storageStatistics.getTotalSizeSync¹⁰⁺

getTotalSizeSync(): number

Obtains the total space (in bytes) of the built-in storage synchronously.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  try {
    let number = storageStatistics.getTotalSizeSync();
    console.info("getTotalSizeSync successfully:" + JSON.stringify(number));
  } catch (error) {
    let error: BusinessError = err as BusinessError;
    console.info("getTotalSizeSync failed with error:" + JSON.stringify(err));
  }

storageStatistics.getFreeSize⁹⁺

getFreeSize(): Promise<number>

Obtains the available space (in bytes) of the built-in storage. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getFreeSize().then((number: number) => {
    console.info("getFreeSize successfully:" + JSON.stringify(number));
  }).catch((err: BusinessError) => {
    console.info("getFreeSize failed with error:" + JSON.stringify(err));
  });

storageStatistics.getFreeSize⁹⁺

getFreeSize(callback: AsyncCallback<number>): void

Obtains the available space (in bytes) of the built-in storage. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getFreeSize((error: BusinessError, number: number) => {
    // Do something.
    console.info("getFreeSize successfully:" + JSON.stringify(number));
  });

storageStatistics.getFreeSizeSync¹⁰⁺

getFreeSizeSync(): number

Obtains the available space (in bytes) of the built-in storage synchronously.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  try {
    let number = storageStatistics.getFreeSizeSync();
    console.info("getFreeSizeSync successfully:" + JSON.stringify(number));
  } catch (error) {
    let error: BusinessError = err as BusinessError;
    console.info("getFreeSizeSync failed with error:" + JSON.stringify(err));
  }

storageStatistics.getSystemSize⁹⁺

getSystemSize(): Promise<number>

Obtains the system data space, in bytes. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getSystemSize().then((number: number) => {
    console.info("getSystemSize successfully:" + number);
  }).catch((err: BusinessError) => {
    console.info("getSystemSize failed with error:" + JSON.stringify(err));
  });

storageStatistics.getSystemSize⁹⁺

getSystemSize(callback: AsyncCallback<number>): void

Obtains the system data space, in bytes. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getSystemSize((error: BusinessError, number: number) => {
    // Do something.
    console.info("getSystemSize successfully:" + number);
  });

storageStatistics.getUserStorageStats⁹⁺

getUserStorageStats(): Promise<StorageStats>

Obtains the storage statistics (in bytes) of this user. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getUserStorageStats().then((storageStats: storageStatistics.StorageStats) => {
    console.info("getUserStorageStats successfully:" + JSON.stringify(storageStats));
  }).catch((err: BusinessError) => {
    console.info("getUserStorageStats failed with error:" + JSON.stringify(err));
  });

storageStatistics.getUserStorageStats⁹⁺

getUserStorageStats(callback: AsyncCallback<StorageStats>): void

Obtains the storage statistics (in bytes) of this user. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  storageStatistics.getUserStorageStats((error: BusinessError, storageStats: storageStatistics.StorageStats) => {
    // Do something.
    console.info("getUserStorageStats successfully:" + JSON.stringify(storageStats));
  });

storageStatistics.getUserStorageStats⁹⁺

getUserStorageStats(userId: number): Promise<StorageStats>

Obtains the storage statistics (in bytes) of the specified user. This API uses a promise to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Return value

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let userId: number = 100;
  storageStatistics.getUserStorageStats(userId).then((storageStats: storageStatistics.StorageStats) => {
    console.info("getUserStorageStats successfully:" + JSON.stringify(storageStats));
  }).catch((err: BusinessError) => {
    console.info("getUserStorageStats failed with error:" + JSON.stringify(err));
  });

storageStatistics.getUserStorageStats⁹⁺

getUserStorageStats(userId: number, callback: AsyncCallback<StorageStats>): void

Obtains the storage statistics (in bytes) of the specified user. This API uses an asynchronous callback to return the result.

Required permissions: ohos.permission.STORAGE_MANAGER

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

Parameters

Error codes

For details about the error codes, see File Management Error Codes.

Example

  import { BusinessError } from '@ohos.base';
  let userId: number = 100;
  storageStatistics.getUserStorageStats(userId, (error: BusinessError, storageStats: storageStatistics.StorageStats) => {
    // Do something.
    console.info("getUserStorageStats successfully:" + JSON.stringify(storageStats));
  });

StorageStats⁹⁺

System capability: SystemCapability.FileManagement.StorageService.SpatialStatistics

System API: This is a system API.

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