harmony 鸿蒙File Management Subsystem Changelog
File Management Subsystem Changelog
cl.file.1 mediaLibrary APIs Changed
The MediaLibrary class of the multimedia component is replaced by the FilePicker class.
Change Impact
For applications developed based on earlier versions, pay attention to the changes of APIs. FilePicker is a system application preset in OpenHarmony. You can use it to select and save files.
Key API/Component Changes
The APIs of MediaLibrary, located in @ohos.multimedia.medialibrary, are deprecated. The FilePicker class, located in @ohos.file.picker is used.
Module | Method/Attribute/Enum/Constant | Change Type |
---|---|---|
medialibrary | function getMediaLibrary(): MediaLibrary; | Deprecated |
medialibrary | function getMediaLibrary(context: Context): MediaLibrary; | Deprecated |
medialibrary | function getFileAssets(options: MediaFetchOptions, callback: AsyncCallback<FetchFileResult>): void | Deprecated |
medialibrary | function getFileAssets(options: MediaFetchOptions): Promise<FetchFileResult> | Deprecated |
medialibrary | function on(type: ‘deviceChange’|‘albumChange’|‘imageChange’|‘audioChange’|‘videoChange’|‘fileChange’|‘remoteFileChange’, callback: Callback<void>): void | Deprecated |
medialibrary | function off(type: ‘deviceChange’|‘albumChange’|‘imageChange’|‘audioChange’|‘videoChange’|‘fileChange’|‘remoteFileChange’, callback?: Callback<void>): void | Deprecated |
medialibrary | function createAsset(mediaType: MediaType, displayName: string, relativePath: string, callback: AsyncCallback<FileAsset>): void | Deprecated |
medialibrary | function createAsset(mediaType: MediaType, displayName: string, relativePath: string): Promise<FileAsset> | Deprecated |
medialibrary | function deleteAsset(uri: string): Promise<void> | Deprecated |
medialibrary | function deleteAsset(uri: string, callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function getPublicDirectory(type: DirectoryType, callback: AsyncCallback<string>): void | Deprecated |
medialibrary | function getPublicDirectory(type: DirectoryType): Promise<string> | Deprecated |
medialibrary | function getAlbums(options: MediaFetchOptions, callback: AsyncCallback<Array<Album>>): void | Deprecated |
medialibrary | function getAlbums(options: MediaFetchOptions): Promise<Array<Album>> | Deprecated |
medialibrary | function release(callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function release(): Promise<void> | Deprecated |
medialibrary | function storeMediaAsset(option: MediaAssetOption, callback: AsyncCallback<string>): void | Deprecated |
medialibrary | function storeMediaAsset(option: MediaAssetOption): Promise<string> | Deprecated |
medialibrary | function startImagePreview(images: Array<string>, index: number, callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function startImagePreview(images: Array<string>, callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function startImagePreview(images: Array<string>, index?: number): Promise<void> | Deprecated |
medialibrary | function startMediaSelect(option: MediaSelectOption, callback: AsyncCallback<Array<string>>): void | Deprecated |
medialibrary | function startMediaSelect(option: MediaSelectOption): Promise<Array<string>> | Deprecated |
medialibrary | function getActivePeers(): Promise<Array<PeerInfo>>; | Deprecated |
medialibrary | function getActivePeers(callback: AsyncCallback<Array<PeerInfo>>): void; | Deprecated |
medialibrary | function getAllPeers(): Promise<Array<PeerInfo>>; | Deprecated |
medialibrary | function FileAsset.isDirectory(callback: AsyncCallback<boolean>): void | Deprecated |
medialibrary | function FileAsset.isDirectory():Promise<boolean> | Deprecated |
medialibrary | function FileAsset.commitModify(callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function FileAsset.commitModify(): Promise<void> | Deprecated |
medialibrary | function FileAsset.open(mode: string, callback: AsyncCallback<number>): void | Deprecated |
medialibrary | function FileAsset.open(mode: string): Promise<number> | Deprecated |
medialibrary | function FileAsset.close(fd: number, callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function FileAsset.close(fd: number): Promise<void> | Deprecated |
medialibrary | function FileAsset.getThumbnail(callback: AsyncCallback<image.PixelMap>): void | Deprecated |
medialibrary | function FileAsset.getThumbnail(size: Size, callback: AsyncCallback<image.PixelMap>): void | Deprecated |
medialibrary | function FileAsset.getThumbnail(size?: Size): Promise<image.PixelMap> | Deprecated |
medialibrary | function FileAsset.favorite(isFavorite: boolean, callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function FileAsset.favorite(isFavorite: boolean): Promise<void> | Deprecated |
medialibrary | function FileAsset.isFavorite(callback: AsyncCallback<boolean>): void | Deprecated |
medialibrary | function FileAsset.isFavorite():Promise<boolean> | Deprecated |
medialibrary | function FileAsset.trash(isTrash: boolean, callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function FileAsset.trash(isTrash: boolean): Promise<void> | Deprecated |
medialibrary | function FileAsset.isTrash(callback: AsyncCallback<boolean>): void | Deprecated |
medialibrary | function FileAsset.isTrash():Promise<boolean> | Deprecated |
medialibrary | function FetchFileResult.getCount(): number | Deprecated |
medialibrary | function FetchFileResult.isAfterLast(): boolean | Deprecated |
medialibrary | function FetchFileResult.close(): void | Deprecated |
medialibrary | function FetchFileResult.getFirstObject(callback: AsyncCallback<FileAsset>): void | Deprecated |
medialibrary | function FetchFileResult.getFirstObject(): Promise<FileAsset> | Deprecated |
medialibrary | function FetchFileResult.getNextObject(callback: AsyncCallback<FileAsset>): void | Deprecated |
medialibrary | function FetchFileResult.getNextObject(): Promise<FileAsset> | Deprecated |
medialibrary | function FetchFileResult.getLastObject(callback: AsyncCallback<FileAsset>): void | Deprecated |
medialibrary | function FetchFileResult.getLastObject(): Promise<FileAsset> | Deprecated |
medialibrary | function FetchFileResult.getPositionObject(index: number, callback: AsyncCallback<FileAsset>): void | Deprecated |
medialibrary | function FetchFileResult.getPositionObject(index: number): Promise<FileAsset> | Deprecated |
medialibrary | function FetchFileResult.getAllObject(callback: AsyncCallback<Array<FileAsset>>): void | Deprecated |
medialibrary | function FetchFileResult.getAllObject(): Promise<Array<FileAsset>> | Deprecated |
medialibrary | function Album.commitModify(callback: AsyncCallback<void>): void | Deprecated |
medialibrary | function Album.commitModify(): Promise<void> | Deprecated |
medialibrary | function Album.getFileAssets(options: MediaFetchOptions, callback: AsyncCallback<FetchFileResult>): void | Deprecated |
medialibrary | function Album.getFileAssets(options?: MediaFetchOptions): Promise<FetchFileResult> | Deprecated |
medialibrary | enum DeviceType | Deprecated |
medialibrary | enum FileKey | Deprecated |
medialibrary | enum DirectoryType | Deprecated |
medialibrary | enum MediaType | Deprecated |
medialibrary | interface PeerInfo | Deprecated |
medialibrary | interface Size | Deprecated |
medialibrary | interface MediaFetchOptions | Deprecated |
medialibrary | interface MediaAssetOption | Deprecated |
medialibrary | interface MediaSelectOption | Deprecated |
medialibrary | interface FileAsset | Deprecated |
Adaptation Guide
For example, refer to the code snippet below to call an API to select an image:
import picker from '@ohos.file.picker';
async function example() {
try {
let PhotoSelectOptions = new picker.PhotoSelectOptions();
PhotoSelectOptions.MIMEType = picker.PhotoViewMIMETypes.IMAGE_TYPE;
PhotoSelectOptions.maxSelectNumber = 1;
let photoPicker = new picker.PhotoViewPicker();
photoPicker.select(PhotoSelectOptions).then((PhotoSelectResult) => {
if (PhotoSelectResult !== undefined) {
console.info("PhotoViewPicker.select pass, PhotoSelectResult uri: " + JSON.stringify(PhotoSelectResult));
} else {
console.error("PhotoViewPicker.select PhotoSelectResult is undefined");
}
}).catch((err) => {
console.error("PhotoViewPicker.select fail, err: " + err);
});
} catch (err) {
console.error("PhotoViewPicker fail, err: " + err);
}
}
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