diff --git a/api/@ohos.filemanagement.userfile_manager.d.ts b/api/@ohos.filemanagement.userFileManager.d.ts
similarity index 52%
rename from api/@ohos.filemanagement.userfile_manager.d.ts
rename to api/@ohos.filemanagement.userFileManager.d.ts
index 5fdd82edc05b355e7dda0ba88a7ae303b4128604..863d2baa402312a617d0119ae0e71aa76ddf9dee 100644
--- a/api/@ohos.filemanagement.userfile_manager.d.ts
+++ b/api/@ohos.filemanagement.userFileManager.d.ts
@@ -14,72 +14,68 @@
  */
 
 import { AsyncCallback, Callback } from './basic';
-import Context  from './application/Context';
+import Context from './application/Context';
 import image from './@ohos.multimedia.image';
+import dataSharePredicates from './@ohos.data.dataSharePredicates';
 
 /**
- * @name userfile_manager
+ * @name userFileManager
  * @since 9
  * @syscap SystemCapability.FileManagement.UserFileManager.Core
- * @import Import userfile_manager from '@ohos.filemanagement.userfile_manager'
+ * @import Import userFileManager from '@ohos.filemanagement.userFileManager'
  */
-declare namespace userfile_manager {
-  /**
-   * Obtains a UserFileManager instance.
-   * @since 9
-   * @syscap SystemCapability.FileManagement.UserFileManager.Core
-   * @import Import userfile_manager from '@ohos.filemanagement.userfile_manager'
-   * @FAModelOnly
-   * @return Returns a UserFileManager instance if the operation is successful; returns null otherwise.
-   */
-  function getUserFileMgr(): UserFileManager;
+declare namespace userFileManager {
   /**
    * Returns an instance of UserFileManager
    * @since 9
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
    * @StageModelOnly
-   * @param context hap context information
+   * @param context Hap context information
    * @return Instance of UserFileManager
    */
   function getUserFileMgr(context: Context): UserFileManager;
 
   /**
-   * Enumeration types for different kinds of Media Files
+   * Enumeration types for different kinds of Files
    * @since 9
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
    */
-  enum MediaType {
-    /**
-     * File media type
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    FILE = 0,
+  enum FileType {
     /**
-     * Image media type
+     * Image file type
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    IMAGE,
+    IMAGE = 1,
     /**
-     * Video media type
+     * Video file type
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
     VIDEO,
     /**
-     * Audio media type
+     * Audio file type
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
     AUDIO
   }
 
+  /**
+   * Indicates the type of file asset member.
+   */
+  type MemberType = number | string | boolean;
+
+  /**
+   * Indicates the type of notify event.
+   */
+  type ChangeEvent = 'deviceChange' | 'albumChange' | 'imageChange' | 'audioChange' | 'videoChange' | 'remoteFileChange';
+
   /**
    * Provides methods to encapsulate file attributes.
    * @since 9
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
-   * @import Import userfilemgr from '@ohos.filemanagement.userfile_manager'
+   * @import Import userFileManager from '@ohos.filemanagement.userFileManager'
    */
   interface FileAsset {
     /**
@@ -89,11 +85,11 @@ declare namespace userfile_manager {
      */
     readonly uri: string;
     /**
-     * Media type, for example, IMAGE, VIDEO, FILE, AUDIO
+     * File type, for example, IMAGE, VIDEO, AUDIO
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    readonly mediaType: MediaType;
+    readonly fileType: FileType;
     /**
      * Display name (with a file name extension) of the file.
      * @since 9
@@ -101,39 +97,42 @@ declare namespace userfile_manager {
      */
     displayName: string;
     /**
-     * If it is a directory where the file is located.
+     * Return the fileasset member parameter.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param callback Callback return the result of isDerectory.
+     * @param member the name of the parameter. for example : get(ImageVideoKey.URI)
      */
-    isDirectory(callback: AsyncCallback<boolean>): void;
+    get(member: string): MemberType;
     /**
-     * If it is a directory where the file is located.
+     * Set the fileasset member parameter.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @param member The name of the parameter. only TITLE can be changed
+     * @param string The value of the parameter.
+     * @example : Set(ImageVideoKey.TITLE, "newTitle"), call commitModify after set value
      */
-    isDirectory():Promise<boolean>;
+    set(member: string, value: string): void;
     /**
      * Modify meta data where the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param callback no value will be returned.
+     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO
+     * @param callback No value will be returned.
      */
     commitModify(callback: AsyncCallback<void>): void;
     /**
      * Modify meta data where the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
+     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO
      */
     commitModify(): Promise<void>;
     /**
      * Open the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT or ohos.permission.WRITE_MEDIA or ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param mode mode for open, for example: rw, r, w.
+     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO
+     * @param mode Mode for open, for example: rw, r, w.
      * @param callback Callback return the fd of the file.
      */
     open(mode: string, callback: AsyncCallback<number>): void;
@@ -141,30 +140,30 @@ declare namespace userfile_manager {
      * Open the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT or ohos.permission.WRITE_MEDIA or ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param mode mode for open, for example: rw, r, w.
+     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO
+     * @param mode Mode for open, for example: rw, r, w.
      */
     open(mode: string): Promise<number>;
     /**
      * Close the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param fd fd of the file which had been opened
-     * @param callback no value will be returned.
+     * @param fd Fd of the file which had been opened
+     * @param callback No value will be returned.
      */
     close(fd: number, callback: AsyncCallback<void>): void;
     /**
      * Close the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param fd fd of the file which had been opened
+     * @param fd Fd of the file which had been opened
      */
     close(fd: number): Promise<void>;
     /**
      * Get thumbnail of the file when the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
+     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO
      * @param callback Callback used to return the thumbnail's pixelmap.
      */
     getThumbnail(callback: AsyncCallback<image.PixelMap>): void;
@@ -172,25 +171,25 @@ declare namespace userfile_manager {
      * Get thumbnail of the file when the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param size thumbnail's size
+     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO
+     * @param size Thumbnail's size
      * @param callback Callback used to return the thumbnail's pixelmap.
      */
-    getThumbnail(size: Size, callback: AsyncCallback<image.PixelMap>): void;
+    getThumbnail(size: image.Size, callback: AsyncCallback<image.PixelMap>): void;
     /**
      * Get thumbnail of the file when the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param size thumbnail's size
+     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO
+     * @param size Thumbnail's size
      */
-    getThumbnail(size?: Size): Promise<image.PixelMap>;
+    getThumbnail(size?: image.Size): Promise<image.PixelMap>;
     /**
      * Set favorite for the file when the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param isFavorite ture is favorite file, false is not favorite file
+     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO
+     * @param isFavorite True is favorite file, false is not favorite file
      * @param callback Callback used to return, No value is returned.
      */
     favorite(isFavorite: boolean, callback: AsyncCallback<void>): void;
@@ -198,163 +197,76 @@ declare namespace userfile_manager {
      * Set favorite for the file when the file is located.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param isFavorite ture is favorite file, false is not favorite file
+     ** @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO
+     * @param isFavorite True is favorite file, false is not favorite file
      */
     favorite(isFavorite: boolean): Promise<void>;
-    /**
-     * If the file is favorite when the file is located.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param callback Callback used to return true or false.
-     */
-    isFavorite(callback: AsyncCallback<boolean>): void;
-    /**
-     * If the file is favorite when the file is located.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    isFavorite():Promise<boolean>;
-    /**
-     * Set trash for the file when the file is located.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param isTrash true is trashed file, false is not trashed file
-     * @param callback Callback used to return, No value is returned.
-     */
-    trash(isTrash: boolean, callback: AsyncCallback<void>): void;
-    /**
-     * Set trash for the file when the file is located.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param isTrash true is trashed file, false is not trashed file
-     */
-    trash(isTrash: boolean): Promise<void>;
-    /**
-     * If the file is in trash when the file is located.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param callback Callback used to return true or false.
-     */
-    isTrash(callback: AsyncCallback<boolean>): void;
-    /**
-     * If the file is in trash when the file is located.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    isTrash():Promise<boolean>;
   }
 
   /**
-   * Describes MediaFetchOptions's selection
+   * Describes AUDIO TYPE FetchOptions's predicate
    * @since 9
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
    */
-  enum FileKey {
+  enum AudioKey {
     /**
      * File uri
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    URI = "uri",
-    /**
-     * Relative Path
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    RELATIVE_PATH = "relative_path",
+    URI,
     /**
      * File name
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DISPLAY_NAME = "display_name",
+    DISPLAY_NAME,
     /**
      * Date of the file creation
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_ADDED = "date_added",
+    DATE_ADDED,
     /**
      * Modify date of the file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_MODIFIED = "date_modified",
+    DATE_MODIFIED,
     /**
      * Title of the file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    TITLE = "title",
-  }
-
-  /**
-   * Describes AUDIO TYPE MediaFetchOptions's predicate
-   * @since 9
-   * @syscap SystemCapability.FileManagement.UserFileManager.Core
-   */
-  enum AudioKey {
+    TITLE,
     /**
-     * File uri
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    URI = "uri",
-    /**
-     * Relative Path
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    RELATIVE_PATH = "relative_path",
-    /**
-     * File name
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DISPLAY_NAME = "display_name",
-    /**
-     * Date of the file creation
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DATE_ADDED = "date_added",
-    /**
-     * Modify date of the file
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DATE_MODIFIED = "date_modified",
-    /**
-     * Title of the file
+     * Artist of the audio file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    TITLE = "title",
+    ARTIST,
     /**
-     * Artist of the audio file
+     * Audio album of the audio file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    ARTIST = "artist",
+    AUDIOALBUM,
     /**
-     * Audio album of the audio file
+     * Duration of the audio file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    AUDIOALBUM = "audio_album",
+    DURATION,
     /**
-     * Duration of the audio and video file
+     * Favorite state of the file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DURATION = "duration",
+    FAVORITE,
   }
 
   /**
-    * Describes Image, Video TYPE MediaFetchOptions's predicate
+    * Describes Image, Video TYPE FetchOptions's predicate
     * @since 9
     * @syscap SystemCapability.FileManagement.UserFileManager.Core
     */
@@ -364,61 +276,73 @@ declare namespace userfile_manager {
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    URI = "uri",
+    URI,
     /**
-     * Relative Path
+     * File type of the Asset
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    RELATIVE_PATH = "relative_path",
+    FILE_TYPE,
     /**
      * File name
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DISPLAY_NAME = "display_name",
+    DISPLAY_NAME,
     /**
      * Date of the file creation
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_ADDED = "date_added",
+    DATE_ADDED,
     /**
      * Modify date of the file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_MODIFIED = "date_modified",
+    DATE_MODIFIED,
     /**
      * Title of the file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    TITLE = "title",
+    TITLE,
     /**
      * Duration of the audio and video file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DURATION = "duration",
+    DURATION,
     /**
      * Width of the image file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    WIDTH = "width",
+    WIDTH,
     /**
      * Height of the image file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    HEIGHT = "height",
+    HEIGHT,
     /**
      * Date taken of the file
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_TAKEN = "date_taken",
+    DATE_TAKEN,
+    /**
+     * Orientation of the image file
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     */
+    ORIENTATION,
+    /**
+     * Favorite state of the file
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     */
+    FAVORITE,
   }
 
   /**
@@ -428,64 +352,81 @@ declare namespace userfile_manager {
    */
   enum AlbumKey {
     /**
-     * File uri
+     * Album uri
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    URI = "uri",
+    URI,
     /**
-     * Relative Path
+     * File type of the Album
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    RELATIVE_PATH = "relative_path",
+    FILE_TYPE,
     /**
-     * File name
+     * Album name
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DISPLAY_NAME = "display_name",
+    ALBUM_NAME,
     /**
-     * Date of the file creation
+     * Date of the Album creation
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_ADDED = "date_added",
+    DATE_ADDED,
     /**
-     * Modify date of the file
+     * Modify date of the Album
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
-    DATE_MODIFIED = "date_modified",
+    DATE_MODIFIED,
   }
 
   /**
-   * Fetch parameters applicable on images, videos, audios, albums and other media
-   * @syscap SystemCapability.FileManagement.UserFileManager.Core
+   * Fetch parameters
    * @since 9
+   * @syscap SystemCapability.FileManagement.UserFileManager.Core
    */
-  interface MediaFetchOptions {
+  interface FetchOptions {
     /**
-     * Fields to retrieve, for example, selections: "media_type =? OR media_type =?".
+     * Indicates the columns to query.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @param fetchColumns Indicates the columns to query. If this parameter is null, only uri, name, fileType will query.
      */
-    selections: string;
+    fetchColumns: Array<string>;
     /**
-     * Conditions for retrieval, for example, selectionArgs: [IMAGE, VIDEO].
+     * Predicate to query
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @param predicates Indicates filter criteria.
      */
-    selectionArgs: Array<string>;
+    predicates: dataSharePredicates.DataSharePredicates;
+  }
+
+  /**
+   * Fetch parameters
+   * @since 9
+   * @syscap SystemCapability.FileManagement.UserFileManager.Core
+   */
+  interface AlbumFetchOptions {
+    /**
+     * Predicate to query
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @param predicates Indicates filter criteria.
+     */
+    predicates: dataSharePredicates.DataSharePredicates;
   }
 
   /**
    * Implements file retrieval.
    * @since 9
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
-   * @import Import userfilemgr from '@ohos.filemanagement.userfile_manager'
+   * @import Import userFileManager from '@ohos.filemanagement.userFileManager'
    */
-  interface FetchFileResult {
+  interface FetchResult<T> {
     /**
      * Obtains the total number of files in the file retrieval result.
      * @since 9
@@ -503,7 +444,7 @@ declare namespace userfile_manager {
      */
     isAfterLast(): boolean;
     /**
-     * Releases the FetchFileResult instance and invalidates it. Other methods cannot be called.
+     * Releases the FetchResult instance and invalidates it. Other methods cannot be called.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
@@ -514,75 +455,77 @@ declare namespace userfile_manager {
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      * @param callback Callback used to return the file in the format of a FileAsset instance.
      */
-    getFirstObject(callback: AsyncCallback<FileAsset>): void;
+    getFirstObject(callback: AsyncCallback<T>): void;
     /**
-     * Obtains the first FileAsset in the file retrieval result. This method uses a promise to return the file.
+     * Obtains the first T in the file retrieval result. This method uses a promise to return the file.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @return A Promise instance used to return the file in the format of a FileAsset instance.
+     * @return A Promise instance used to return the file in the format of a T instance.
      */
-    getFirstObject(): Promise<FileAsset>;
+    getFirstObject(): Promise<T>;
     /**
-     * Obtains the next FileAsset in the file retrieval result.
+     * Obtains the next T in the file retrieval result.
      * This method uses a callback to return the file.
      * Before calling this method, you must use isAfterLast() to check whether the result set points to the last row.
      * This method returns the next file only when True is returned for isAfterLast().
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param callback Callback used to return the file in the format of a FileAsset instance.
+     * @param callback Callback used to return the file in the format of a T instance.
      */
-    getNextObject(callback: AsyncCallback<FileAsset>): void;
+    getNextObject(callback: AsyncCallback<T>): void;
     /**
-     * Obtains the next FileAsset in the file retrieval result.
+     * Obtains the next T in the file retrieval result.
      * This method uses a promise to return the file.
      * Before calling this method, you must use isAfterLast() to check whether the result set points to the last row.
      * This method returns the next file only when True is returned for isAfterLast().
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @return A Promise instance used to return the file in the format of a FileAsset instance.
+     * @return A Promise instance used to return the file in the format of a T instance.
      */
-    getNextObject(): Promise<FileAsset>;
+    getNextObject(): Promise<T>;
     /**
-     * Obtains the last FileAsset in the file retrieval result. This method uses a callback to return the file.
+     * Obtains the last T in the file retrieval result. This method uses a callback to return the file.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param callback Callback used to return the file in the format of a FileAsset instance.
+     * @param callback Callback used to return the file in the format of a T instance.
      */
-    getLastObject(callback: AsyncCallback<FileAsset>): void;
+    getLastObject(callback: AsyncCallback<T>): void;
     /**
-     * Obtains the last FileAsset in the file retrieval result. This method uses a promise to return the file.
+     * Obtains the last T in the file retrieval result. This method uses a promise to return the file.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @return A Promise instance used to return the file in the format of a FileAsset instance.
+     * @return A Promise instance used to return the file in the format of a T instance.
      */
-    getLastObject(): Promise<FileAsset>;
+    getLastObject(): Promise<T>;
     /**
-     * Obtains the FileAsset with the specified index in the file retrieval result.
+     * Obtains the T with the specified index in the file retrieval result.
      * This method uses a callback to return the file.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      * @param index Index of the file to obtain.
-     * @param callback Callback used to return the file in the format of a FileAsset instance.
+     * @throws {BusinessError} 13900020 - if type index is not number
+     * @param callback Callback used to return the file in the format of a T instance.
      */
-    getPositionObject(index: number, callback: AsyncCallback<FileAsset>): void;
+    getPositionObject(index: number, callback: AsyncCallback<T>): void;
     /**
-     * Obtains the FileAsset with the specified index in the file retrieval result.
+     * Obtains the T with the specified index in the file retrieval result.
      * This method uses a promise to return the file.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      * @param index Index of the file to obtain.
-     * @return A Promise instance used to return the file in the format of a FileAsset instance.
+     * @throws {BusinessError} 13900020 - if type index is not number
+     * @return A Promise instance used to return the file in the format of a T instance.
      */
-    getPositionObject(index: number): Promise<FileAsset>;
+    getPositionObject(index: number): Promise<T>;
   }
 
   /**
-   * Defines the album.
+   * Defines the AbsAlbum.
    *
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
    * @since 9
    */
-  interface Album {
+  interface AbsAlbum {
     /**
      * Album name.
      * @since 9
@@ -608,103 +551,57 @@ declare namespace userfile_manager {
      */
     readonly count: number;
     /**
-     * Relative path for the album
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    readonly relativePath: string;
-    /**
-     * coverUri for the album
+     * CoverUri for the album
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
      */
     readonly coverUri: string;
-
     /**
-     * Modify the meta data for the album
+     * Obtains files in an album. This method uses an asynchronous callback to return the files.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param callback, no value will be returned.
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param type Detemined which kinds of asset to retrive.
+     * @param options Retrieval options.
+     * @throws {BusinessError} 13900020 - if type options is not FetchOptions
+     * @param callback Callback used to return the files in the format of a FetchResult instance.
      */
-    commitModify(callback: AsyncCallback<void>): void;
-    /**
-     * Modify the meta data for the album
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     */
-    commitModify(): Promise<void>;
-    /**
-     * SObtains files in an album. This method uses an asynchronous callback to return the files.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param callback Callback used to return the files in the format of a FetchFileResult instance.
-     */
-    getFileAssets(type: Array<MediaType>, callback: AsyncCallback<FetchFileResult>): void;
-    /**
-     * SObtains files in an album. This method uses an asynchronous callback to return the files.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param options Media retrieval options.
-     * @param callback Callback used to return the files in the format of a FetchFileResult instance.
-     */
-    getFileAssets(type: Array<MediaType>, options: MediaFetchOptions, callback: AsyncCallback<FetchFileResult>): void;
+    getPhotoAssets(options: FetchOptions, callback: AsyncCallback<FetchResult<FileAsset>>): void;
     /**
      * Obtains files in an album. This method uses a promise to return the files.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param options Media retrieval options.
-     * @return A Promise instance used to return the files in the format of a FetchFileResult instance.
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param type Detemined which kinds of asset to retrive.
+     * @param options Retrieval options.
+     * @throws {BusinessError} 13900020 - if type options is not FetchOptions
+     * @return A Promise instance used to return the files in the format of a FetchResult instance.
      */
-    getFileAssets(type: Array<MediaType>, options?: MediaFetchOptions): Promise<FetchFileResult>;
+    getPhotoAssets(options: FetchOptions): Promise<FetchResult<FileAsset>>;
   }
 
   /**
-   * Enumeration public directory that predefined
-   * @since 9
+   * Defines the album.
+   *
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
+   * @since 9
    */
-  enum DirectoryType {
+  interface Album extends AbsAlbum {
     /**
-     * predefined public directory for files token by Camera.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DIR_CAMERA = 0,
-    /**
-     * predefined public directory for VIDEO files.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DIR_VIDEO,
-    /**
-     * predefined public directory for IMAGE files.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DIR_IMAGE,
-    /**
-     * predefined public directory for AUDIO files.
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    DIR_AUDIO,
-    /**
-     * predefined public directory for DOCUMENTS files.
+     * Modify the meta data for the album
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @permission ohos.permission.WRITE_IMAGEVIDEO
+     * @param callback No value will be returned.
      */
-    DIR_DOCUMENTS,
+    commitModify(callback: AsyncCallback<void>): void;
     /**
-     * predefined public directory for DOWNLOAD files.
+     * Modify the meta data for the album
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @permission ohos.permission.WRITE_IMAGEVIDEO
      */
-    DIR_DOWNLOAD
+    commitModify(): Promise<void>;
   }
 
   /**
@@ -715,139 +612,163 @@ declare namespace userfile_manager {
    */
   interface UserFileManager {
     /**
-     * get system predefined root dir, use to create file asset by relative path
+     * Query photo, video assets
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param type, public directory predefined in DirectoryType.
-     * @param callback Callback return the FetchFileResult.
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param options retrieval options.
+     * @throws {BusinessError} 13900020 - if type options is not FetchOptions
+     * @param callback Callback return the FetchResult.
      */
-    getPublicDirectory(type: DirectoryType, callback: AsyncCallback<string>): void;
+    getPhotoAssets(options: FetchOptions, callback: AsyncCallback<FetchResult<FileAsset>>): void;
     /**
-     * get system predefined root dir, use to create file asset by relative path
+     * Query photo, video assets
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param type public directory predefined in DirectoryType.
-     * @return A promise instance used to return the public directory in the format of string
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param type Detemined which kinds of asset to retrive.
+     * @param options Retrieval options.
+     * @throws {BusinessError} 13900020 - if type options is not FetchOptions
+     * @return A promise instance used to return the files in the format of a FetchResult instance
      */
-    getPublicDirectory(type: DirectoryType): Promise<string>;
+    getPhotoAssets(options: FetchOptions): Promise<FetchResult<FileAsset>>;
     /**
-     * query all assets just for count & first cover
-     * if need all data, getAllObject from FetchFileResult
-     * @since 9
+     * Create Photo Asset
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param options, Media retrieval options.
-     * @param callback, Callback return the FetchFileResult.
+     * @permission ohos.permission.WRITE_IMAGEVIDEO
+     * @param displayName File name
+     * @param albumUri Asset will put into the album.
+     * @param callback Callback used to return the FileAsset
+     * @throws {BusinessError} 13900020 - if type displayName or albumUri is not string
+     * @throws {BusinessError} 14000001 - if type displayName invalid
+     * @systemapi
+     * @since 9
      */
-    getFileAssets(type: Array<MediaType>, options: MediaFetchOptions, callback: AsyncCallback<FetchFileResult>): void;
+    createPhotoAsset(displayName: string, albumUri: string, callback: AsyncCallback<FileAsset>): void;
     /**
-     * query all assets just for count & first cover
-     * if need all data, getAllObject from FetchFileResult
+     * Create Photo Asset
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @permission ohos.permission.WRITE_IMAGEVIDEO
+     * @param displayName File name
+     * @param callback Callback used to return the FileAsset
+     * @throws {BusinessError} 13900020 - if type displayName is not string
+     * @throws {BusinessError} 14000001 - if type displayName invalid
+     * @systemapi
      * @since 9
+     */
+    createPhotoAsset(displayName: string, callback: AsyncCallback<FileAsset>): void;
+    /**
+     * Create Photo Asset
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param options Media retrieval options.
-     * @return A promise instance used to return the files in the format of a FetchFileResult instance
+     * @permission ohos.permission.WRITE_IMAGEVIDEO
+     * @param displayName File name
+     * @param albumUri Album uri is optional, asset will put into the default album without albumUri
+     * @return A Promise instance used to return the FileAsset
+     * @throws {BusinessError} 13900020 - if type displayName or albumUri is not string
+     * @systemapi
+     * @since 9
      */
-    getFileAssets(type: Array<MediaType>, options: MediaFetchOptions): Promise<FetchFileResult>;
+    createPhotoAsset(displayName: string, albumUri?: string): Promise<FileAsset>;
     /**
-     * Turn on mornitor the data changes by media type
+     * Obtains albums based on the retrieval options. This method uses an asynchronous callback to return.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param type one of 'deviceChange','albumChange','imageChange','audioChange','videoChange','fileChange','remoteFileChange'
-     * @param callback no value returned
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param options Retrieval options.
+     * @param callback Callback used to return an album array.
+     * @throws {BusinessError} 13900020 - if type options is not AlbumFetchOptions
      */
-    on(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'|'fileChange'|'remoteFileChange', callback: Callback<void>): void;
+    getPhotoAlbums(options: AlbumFetchOptions, callback: AsyncCallback<FetchResult<Album>>): void;
     /**
-     * Turn off mornitor the data changes by media type
+     * Obtains albums based on the retrieval options. This method uses a promise to return the albums.
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @param type one of 'deviceChange','albumChange','imageChange','audioChange','videoChange','fileChange','remoteFileChange'
-     * @param callback no value returned
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param options Retrieval options.
+     * @return A Promise instance used to return an album array.
+     * @throws {BusinessError} 13900020 - if type options is not AlbumFetchOptions
      */
-     off(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'|'fileChange'|'remoteFileChange', callback?: Callback<void>): void;
+    getPhotoAlbums(options: AlbumFetchOptions): Promise<FetchResult<Album>>;
     /**
-     * Create File Asset
+     * Obtains system private albums based on the private album type. This method uses an asynchronous callback to return.
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param mediaType mediaType for example:IMAGE, VIDEO, AUDIO, FILE
-     * @param displayName file name
-     * @param relativePath relative path
-     * @param callback Callback used to return the FileAsset
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param type Private album type
+     * @param callback Used to return a private album FetchResult.
+     * @throws {BusinessError} 13900020 - if type type is not PrivateAlbumType
      * @systemapi
      * @since 9
      */
-    createAsset(mediaType: MediaType, displayName: string, relativePath: string, callback: AsyncCallback<FileAsset>): void;
+    getPrivateAlbum(type: PrivateAlbumType, callback: AsyncCallback<FetchResult<PrivateAlbum>>): void;
     /**
-     * Create File Asset
+     * Obtains system private albums based on the private album type. This method uses a promise to return.
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param mediaType mediaType for example:IMAGE, VIDEO, AUDIO, FILE
-     * @param displayName file name
-     * @param relativePath relative path
-     * @return A Promise instance used to return the FileAsset
+     * @permission ohos.permission.READ_IMAGEVIDEO
+     * @param type Private album type
+     * @return A Promise instance used to return a private album FetchResult.
+     * @throws {BusinessError} 13900020 - if type type is not PrivateAlbumType
      * @systemapi
      * @since 9
      */
-    createAsset(mediaType: MediaType, displayName: string, relativePath: string): Promise<FileAsset>;
+    getPrivateAlbum(type: PrivateAlbumType): Promise<FetchResult<PrivateAlbum>>;
     /**
-     * Delete File Asset
+     * Query audio assets
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param uri FileAsset's URI
-     * @param callback no value returned
-     * @systemapi
+     * @permission ohos.permission.READ_AUDIO
+     * @param options Retrieval options.
+     * @throws {BusinessError} 13900020 - if type options is not FetchOptions
+     * @param callback Callback return the FetchResult.
      */
-    deleteAsset(uri: string, callback: AsyncCallback<void>): void;
+    getAudioAssets(options: FetchOptions, callback: AsyncCallback<FetchResult<FileAsset>>): void;
     /**
-     * Delete File Asset
+     * Query audio assets
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.WRITE_AUDIO or ohos.permission.WRITE_DOCUMENT
-     * @param uri, FileAsset's URI
-     * @return A Promise instance, no value returned
-     * @systemapi
+     * @permission ohos.permission.READ_AUDIO
+     * @param type Detemined which kinds of asset to retrive.
+     * @param options Retrieval options.
+     * @throws {BusinessError} 13900020 - if type options is not FetchOptions
+     * @return A promise instance used to return the files in the format of a FetchResult instance
      */
-    deleteAsset(uri: string): Promise<void>;
+    getAudioAssets(options: FetchOptions): Promise<FetchResult<FileAsset>>;
     /**
-     * Obtains albums based on the media retrieval options. This method uses an asynchronous callback to return.
+    * Delete Asset
+    * @since 9
+    * @syscap SystemCapability.FileManagement.UserFileManager.Core
+    * @permission ohos.permission.READ_IMAGEVIDEO and ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.READ_AUDIO and ohos.permission.WRITE_AUDIO
+    * @param uri Uri of asset
+    * @param callback No value returned
+    * @throws {BusinessError} 13900020 - if type uri is not string
+    * @systemapi
+    */
+    delete(uri: string, callback: AsyncCallback<void>): void;
+    /**
+     * Delete Asset
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param options Media retrieval options.
-     * @param callback Callback used to return an album array.
+     * @permission ohos.permission.READ_IMAGEVIDEO and ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.READ_AUDIO and ohos.permission.WRITE_AUDIO
+     * @param uri Uri of asset
+     * @return A Promise instance, no value returned
+     * @throws {BusinessError} 13900020 - if type uri is not string
      */
-    getAlbums(type: Array<MediaType>, options: MediaFetchOptions, callback: AsyncCallback<Array<Album>>): void;
+    delete(uri: string): Promise<void>;
     /**
-     * Obtains albums based on the media retrieval options. This method uses a promise to return the albums.
+     * Turn on mornitor the data changes
      * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENT
-     * @param option Media retrieval options.
-     * @return A Promise instance used to return an album array.
+     * @param type One of 'deviceChange','albumChange','imageChange','audioChange','videoChange','remoteFileChange'
+     * @param callback No value returned
      */
-    getAlbums(type: Array<MediaType>, options: MediaFetchOptions): Promise<Array<Album>>;
+    on(type: ChangeEvent, callback: Callback<void>): void;
     /**
-     * Obtains system private albums based on the virtual album type. This method uses an asynchronous callback to return.
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENTS
-     * @param type virtual album type
-     * @param callback used to return a virtual album array.
-     * @systemapi
+     * Turn off mornitor the data changes
      * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @param type One of 'deviceChange','albumChange','imageChange','audioChange','videoChange','remoteFileChange'
+     * @param callback No value returned
      */
-     getPrivateAlbum(type: VirtualAlbumType, callback: AsyncCallback<Array<VirtualAlbum>>): void;
-     /**
-      * Obtains system private albums based on the virtual album type. This method uses a promise to return.
-      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-      * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENTS
-      * @param type virtual album type
-      * @return A Promise instance used to return a virtual album array.
-      * @systemapi
-      * @since 9
-      */
-     getPrivateAlbum(type: VirtualAlbumType): Promise<Array<VirtualAlbum>>;
+    off(type: ChangeEvent, callback?: Callback<void>): void;
     /**
      * Get Active Peer device information
      * @since 9
@@ -896,27 +817,7 @@ declare namespace userfile_manager {
   }
 
   /**
-   * thumbnail's size which have width and heigh
-   * @syscap SystemCapability.FileManagement.UserFileManager.Core
-   * @since 9
-   */
-  interface Size {
-    /**
-     * Width of image file
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    width: number;
-    /**
-     * Height of image file
-     * @since 9
-     * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     */
-    height: number;
-  }
-
-  /**
-   * peer devices' information
+   * Peer devices' information
    * @syscap SystemCapability.FileManagement.UserFileManager.DistributedCore
    * @systemapi
    * @since 9
@@ -946,12 +847,12 @@ declare namespace userfile_manager {
   }
 
   /**
-   * Virtual album type
+   * Private album type
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
    * @systemapi
    * @since 9
    */
-   enum VirtualAlbumType {
+  enum PrivateAlbumType {
     /**
      * System Private Album: Favorite album
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
@@ -967,35 +868,56 @@ declare namespace userfile_manager {
      */
     TYPE_TRASH,
   }
+
   /**
-   * Defines the virtual album
+   * Defines the private album
    *
    * @syscap SystemCapability.FileManagement.UserFileManager.Core
    * @systemapi
    * @since 9
    */
-  interface VirtualAlbum {
+  interface PrivateAlbum extends AbsAlbum {
     /**
-     * Obtains files in an virtual album. This method uses an asynchronous callback to return the files.
+     * Delete asset permanently from Trash bin, only support the Trash album
+     * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENTS
-     * @param options Media retrieval options.
-     * @param callback Callback used to return the files in the format of a FetchFileResult instance.
+     * @param uri uri of asset
+     * @permission ohos.permission.READ_IMAGEVIDEO and ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.READ_AUDIO and ohos.permission.WRITE_AUDIO
+     * @param callback No value returned
      * @systemapi
+     */
+    delete(uri: string, callback: AsyncCallback<void>): void;
+    /**
+     * Delete asset permanently from Trash bin, only support the Trash album
      * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @param uri Uri of asset
+     * @permission ohos.permission.READ_IMAGEVIDEO and ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.READ_AUDIO and ohos.permission.WRITE_AUDIO
+     * @return A Promise instance, no value returned
+     * @systemapi
      */
-    getFileAssets(type: Array<MediaType>, options: MediaFetchOptions, callback: AsyncCallback<FetchFileResult>): void;
+    delete(uri: string): Promise<void>;
     /**
-     * Obtains files in an virtual album. This method uses a promise to return the files.
+     * Recover asset from Trash bin, only support the Trash album
+     * @since 9
      * @syscap SystemCapability.FileManagement.UserFileManager.Core
-     * @permission ohos.permission.READ_IMAGEVIDEO or ohos.permission.READ_AUDIO or ohos.permission.READ_DOCUMENTS
-     * @param options Media retrieval options.
-     * @return A Promise instance used to return the files in the format of a FetchFileResult instance.
+     * @param uri Uri of asset
+     * @permission ohos.permission.READ_IMAGEVIDEO and ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.READ_AUDIO and ohos.permission.WRITE_AUDIO
+     * @param callback No value returned
      * @systemapi
+     */
+    recover(uri: string, callback: AsyncCallback<void>): void;
+    /**
+     * Recover asset from Trash bin, only support the Trash album
      * @since 9
+     * @param uri Uri of asset
+     * @syscap SystemCapability.FileManagement.UserFileManager.Core
+     * @permission ohos.permission.READ_IMAGEVIDEO and ohos.permission.WRITE_IMAGEVIDEO or ohos.permission.READ_AUDIO and ohos.permission.WRITE_AUDIO
+     * @return A Promise instance, no value returned
+     * @systemapi
      */
-    getFileAssets(type: Array<MediaType>, options: MediaFetchOptions): Promise<FetchFileResult>;
+    recover(uri: string): Promise<void>;
   }
 }
 
-export default userfile_manager;
+export default userFileManager;
\ No newline at end of file