harmony 鸿蒙@ohos.file.trash (Trash)

  • 2023-10-30
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@ohos.file.trash (Trash)

The file.trash module provides APIs for querying, recovering, or permanently deleting the files or folders in Recently deleted (trash). Currently, only local files and folders are supported.

You can use delete() of @ohos.file.fileAccess to move a file or folder to the trash.

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 of this module are system APIs and can be called only by the file manager.

Modules to Import

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

trash.listFile

listFile(): Array<FileInfo>

Lists the files and folders in the Recently deleted 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.

Return value

|Type|Description| |—|–| |Array<FileInfo>|List of the files and folders obtained.|

Error codes

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

Example

  let fileinfos = trash.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);
  }

trash.recover

recover(uri: string): void;

Recovers a file or folder from the trash.

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 or folder to recover.

Error codes

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

Example

  let fileinfos = trash.listFile();
  let uri = fileinfos[0].uri;
  trash.recover(uri);

trash.completelyDelete

completelyDelete(uri: string): void

Permanently deletes a file or folder from the Recently deleted 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 or folder to delete.

Error codes

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

Example

  let fileinfos = trash.listFile();
  let uri = fileinfos[0].uri;
  trash.completelyDelete(uri);

FileInfo

Represents information about a file or folder in the Recently deleted 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 or folder.
srcPath string Yes No Path of the file or folder before being deleted.
fileName string Yes No Name of the file or folder.
mode number Yes No Permission on the file or folder.
size number Yes No Size of the file or folder.
mtime number Yes No Time when the file or folder was last modified.
ctime string Yes No Time when the file or folder was created.

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