harmony 鸿蒙@ohos.file.recent (Recent File List)

2023-10-30
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@ohos.file.recent (Recent File List)

The file.recent module provides APIs for managing the list of recently accessed files.

NOTE

The initial APIs of this module are supported since API version 10. Newly added APIs will be marked with a superscript to indicate their earliest API version.

The APIs provided by this module are system APIs and cannot be called by third-party applications. Currently, the APIs can be called only by FileManager.

Modules to Import

import recent from '@ohos.file.recent';

recent.add

add(uri: string): void

Adds the file of the specified URI to the recent file list.

Model restriction: This API can be used only in the stage model.

System capability: SystemCapability.FileManagement.UserFileService

Required permissions: ohos.permission.FILE_ACCESS_MANAGER

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
uri	string	Yes	URI of the file to add.

Error codes

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

Example

  let uri = 'file://docs/storage/Users/currentUser/\<publicPath>';
  recent.add(uri);

recent.remove

remove(uri: string): void

Removes the file of the specified URI from the recent file list.

Model restriction: This API can be used only in the stage model.

System capability: SystemCapability.FileManagement.UserFileService

Required permissions: ohos.permission.FILE_ACCESS_MANAGER

System API: This is a system API.

Parameters

Name	Type	Mandatory	Description
uri	string	Yes	URI of the file to remove.

Error codes

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

Example

  let uri = 'file://docs/storage/Users/currentUser/\<publicPath>';
  recent.remove(uri);

recent.listFile

listFile(): Array<FileInfo>

Lists the files that are accessed recently.

Model restriction: This API can be used only in the stage model.

System capability: SystemCapability.FileManagement.UserFileService

Required permissions: ohos.permission.FILE_ACCESS_MANAGER

System API: This is a system API.

Return value

Error codes

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

Example

  let fileinfos = recent.listFile();
  for(let i = 0; i < fileinfos.length; i++){
    console.info('uri: ' + fileinfos[i].uri);
    console.info('srcPath: ' + fileinfos[i].srcPath);
    console.info('fileName: ' + fileinfos[i].fileName);
    console.info('mode: ' + fileinfos[i].mode);
    console.info('size: ' + fileinfos[i].size);
    console.info('mtime: ' + fileinfos[i].mtime);
    console.info('ctime: ' + fileinfos[i].ctime);
  }

FileInfo

Represents information about the recent file list.

Model restriction: This API can be used only in the stage model.

System capability: SystemCapability.FileManagement.UserFileService

Name	Type	Readable	Writable	Description
uri	string	Yes	No	URI of the file.
srcPath	string	Yes	No	File path.
fileName	string	Yes	No	File name.
mode	number	Yes	No	Permissions on the file.
size	number	Yes	No	File size, in bytes.
mtime	number	Yes	No	Time when the file was last modified.
ctime	number	Yes	No	Time when the file was created.