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

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.