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提交 c4410157 编写于 作者: A Annie_wang
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update docs 

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>
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Showing with 381 addition and 471 deletion
en/application-dev/reference/apis/js-apis-medialibrary.md
浏览文件 @ c4410157
......@@ -20,6 +20,7 @@ Obtains a **MediaLibrary** instance, which is used to access and modify personal
This API can be used only in the stage model.
> **NOTE**
>
> This API is deprecated since API version 9. Use [getPhotoAccessHelper](js-apis-photoAccessHelper.md#photoaccesshelpergetphotoaccesshelper) instead.
**System capability**: SystemCapability.Multimedia.MediaLibrary.Core
......@@ -44,7 +45,7 @@ const context = getContext(this);
let media = mediaLibrary.getMediaLibrary(context);
```
**Example (API version 8)**
**Example (from API version 8)**
```js
import featureAbility from '@ohos.ability.featureAbility';
......@@ -62,6 +63,7 @@ Obtains a **MediaLibrary** instance, which is used to access and modify personal
This API can be used only in the FA model.
> **NOTE**
>
> This API is deprecated since API version 9. There is no substitute API.
**System capability**: SystemCapability.Multimedia.MediaLibrary.Core
......@@ -344,7 +346,7 @@ Creates a media asset. This API uses a promise to return the result.
| ------------ | ------------------------ | ---- | ------------------------------------------------------------ |
| mediaType | [MediaType](#mediatype8) | Yes | Media type. |
| displayName | string | Yes | File name to display. |
| relativePath | string | Yes | Relative path of the file, which can be obtained by [getPublicDirectory](#getpublicdirectory8).|
| relativePath | string | Yes | Relative path of the file, which can be obtained by **getPublicDirectory**.|
**Return value**
......@@ -557,7 +559,7 @@ Obtains albums. This API uses an asynchronous callback to return the result.
> **NOTE**
>
> - This API is deprecated since API version 9. Use [getAlbums](js-apis-photoAccessHelper.md#getalbums) instead.
> - From the SDK of API version 10, **relativePath** is no longer associated with an album. Therefore, **relativePath** cannot be used as a search criterion in **getAlbums**. Currently, only **Camera** and **ScreenShots** albums are supported. For more details, see [changelogs-mediaLibrary.md](../../../release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-mediaLibrary.md).
> - From the SDK of API version 10, **relativePath** is no longer associated with an album. Therefore, **relativePath** cannot be used as a search criterion in **getAlbums**. Currently, only **Camera** and **ScreenShots** albums are supported. For details, see [changelogs-mediaLibrary.md](../../../release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-mediaLibrary.md).
**Required permissions**: ohos.permission.READ_MEDIA
......@@ -597,7 +599,7 @@ Obtains albums. This API uses a promise to return the result.
> **NOTE**
>
> - This API is deprecated since API version 9. Use [getAlbums](js-apis-photoAccessHelper.md#getalbums-2) instead.
> - From the SDK of API version 10, **relativePath** is no longer associated with an album. Therefore, **relativePath** cannot be used as a search criterion in **getAlbums**. Currently, only **Camera** and **ScreenShots** albums are supported. For more details, see [changelogs-mediaLibrary.md](../../../release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-mediaLibrary.md).
> - From the SDK of API version 10, **relativePath** is no longer associated with an album. Therefore, **relativePath** cannot be used as a search criterion in **getAlbums**. Currently, only **Camera** and **ScreenShots** albums are supported. For details, see [changelogs-mediaLibrary.md](../../../release-notes/changelogs/OpenHarmony_4.0.8.2/changelogs-mediaLibrary.md).
**Required permissions**: ohos.permission.READ_MEDIA
......@@ -666,6 +668,7 @@ Releases this **MediaLibrary** instance.
Call this API when you no longer need to use the APIs in the **MediaLibrary** instance.
> **NOTE**
>
> This API is deprecated since API version 9. Use [release](js-apis-photoAccessHelper.md#release-1) instead.
**System capability**: SystemCapability.Multimedia.MediaLibrary.Core
......
en/application-dev/reference/apis/js-apis-photoAccessHelper.md
浏览文件 @ c4410157
......@@ -84,12 +84,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getAssets');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -97,7 +96,7 @@ async function example() {
phAccessHelper.getAssets(fetchOptions, async (err, fetchResult) => {
if (fetchResult != undefined) {
console.info('fetchResult success');
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let photoAsset = await fetchResult.getFirstObject();
if (photoAsset != undefined) {
console.info('photoAsset.displayName : ' + photoAsset.displayName);
}
......@@ -142,21 +141,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getAssets');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
try {
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
if (fetchResult != undefined) {
console.info('fetchResult success');
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let photoAsset = await fetchResult.getFirstObject();
if (photoAsset != undefined) {
console.info('photoAsset.displayName :' + photoAsset.displayName);
}
......@@ -201,7 +198,7 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
async function example() {
console.info('createAssetDemo');
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let testFileName = 'testFile' + Date.now() + '.jpg';
phAccessHelper.createAsset(testFileName, (err, photoAsset) => {
if (photoAsset != undefined) {
console.info('createAsset file displayName' + photoAsset.displayName);
......@@ -250,13 +247,11 @@ For details about the error codes, see [File Management Error Codes](../errorcod
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAssetDemo');
try {
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let photoAsset: photoAccessHelper.photoAsset = await phAccessHelper.createAsset(testFileName);
let testFileName = 'testFile' + Date.now() + '.jpg';
let photoAsset = await phAccessHelper.createAsset(testFileName);
console.info('createAsset file displayName' + photoAsset.displayName);
console.info('createAsset successfully');
} catch (err) {
......@@ -298,12 +293,10 @@ For details about the error codes, see [File Management Error Codes](../errorcod
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAssetDemo');
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let createOption: photoAccessHelper.CreateOptions = {
let testFileName = 'testFile' + Date.now() + '.jpg';
let createOption = {
subtype: photoAccessHelper.PhotoSubtype.DEFAULT
}
phAccessHelper.createAsset(testFileName, createOption, (err, photoAsset) => {
......@@ -355,16 +348,14 @@ For details about the error codes, see [File Management Error Codes](../errorcod
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAssetDemo');
try {
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let photoAccessHelper: photoAccessHelper.PhotoAccessHelper = {
let testFileName = 'testFile' + Date.now() + '.jpg';
let createOption = {
subtype: photoAccessHelper.PhotoSubtype.DEFAULT
}
let photoAsset: photoAccessHelper.PhotoAsset = await phAccessHelper.createAsset(testFileName, createOption);
let photoAsset = await phAccessHelper.createAsset(testFileName, createOption);
console.info('createAsset file displayName' + photoAsset.displayName);
console.info('createAsset successfully');
} catch (err) {
......@@ -403,13 +394,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAssetDemo');
let photoType: photoAccessHelper.PhotoType = photoAccessHelper.PhotoType.IMAGE;
let extension: string = 'jpg';
let options: photoAccessHelper.FetchOptions = {
let photoType = photoAccessHelper.PhotoType.IMAGE;
let extension = 'jpg';
let options = {
title: 'testPhoto'
}
phAccessHelper.createAsset(photoType, extension, options, (err, uri) => {
......@@ -452,12 +441,10 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAssetDemo');
let photoType: photoAccessHelper.PhotoType = photoAccessHelper.PhotoType.IMAGE;
let extension: string = 'jpg';
let photoType = photoAccessHelper.PhotoType.IMAGE;
let extension = 'jpg';
phAccessHelper.createAsset(photoType, extension, (err, uri) => {
if (uri != undefined) {
console.info('createAsset uri' + uri);
......@@ -504,17 +491,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAssetDemo');
try {
let photoType: photoAccessHelper.PhotoType = photoAccessHelper.PhotoType.IMAGE;
let extension: string = 'jpg';
let options: photoAccessHelper.FetchOptions = {
let photoType = photoAccessHelper.PhotoType.IMAGE;
let extension = 'jpg';
let options = {
title: 'testPhoto'
}
let uri: photoAccessHelper.PhotoAccess = await phAccessHelper.createAsset(photoType, extension, options);
let uri = await phAccessHelper.createAsset(photoType, extension, options);
console.info('createAsset uri' + uri);
console.info('createAsset successfully');
} catch (err) {
......@@ -560,8 +545,6 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createAlbumDemo');
let albumName = 'newAlbumName' + new Date().getTime();
......@@ -662,20 +645,18 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
// Delete the album named newAlbumName.
console.info('deleteAlbumsDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.equalTo('album_name', 'newAlbumName');
let fetchOptions: photoAccessHelper.FetchOptions = {
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
let album = await fetchResult.getFirstObject();
phAccessHelper.deleteAlbums([album], (err) => {
if (err) {
console.error('deletePhotoAlbumsCallback failed with err: ' + err);
......@@ -726,20 +707,18 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
// Delete the album named newAlbumName.
console.info('deleteAlbumsDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.equalTo('album_name', 'newAlbumName');
let fetchOptions: photoAccessHelper.FetchOptions = {
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC, fetchOptions);
let album = await fetchResult.getFirstObject();
phAccessHelper.deleteAlbums([album]).then(() => {
console.info('deletePhotoAlbumsPromise successfully');
}).catch((err) => {
......@@ -782,15 +761,13 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
// Obtain the album named newAlbumName.
console.info('getAlbumsDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.equalTo('album_name', 'newAlbumName');
let fetchOptions: photoAccessHelper.FetchOptions = {
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -803,7 +780,7 @@ async function example() {
console.error('getAlbumsCallback fetchResult is undefined');
return;
}
let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
let album = await fetchResult.getFirstObject();
console.info('getAlbumsCallback successfully, albumName: ' + album.albumName);
fetchResult.close();
});
......@@ -841,8 +818,6 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
**Example**
```ts
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
// Obtain the system album VIDEO, which is preset by default.
console.info('getAlbumsDemo');
......@@ -855,7 +830,7 @@ async function example() {
console.error('getAlbumsCallback fetchResult is undefined');
return;
}
let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
let album = await fetchResult.getFirstObject();
console.info('getAlbumsCallback successfully, albumUri: ' + album.albumUri);
fetchResult.close();
});
......@@ -900,15 +875,13 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
// Obtain the album named newAlbumName.
console.info('getAlbumsDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.equalTo('album_name', 'newAlbumName');
let fetchOptions: photoAccessHelper.FetchOptions = {
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -917,7 +890,7 @@ async function example() {
console.error('getAlbumsPromise fetchResult is undefined');
return;
}
let album: photoAccessHelper.Album = await fetchResult.getFirstObject();
let album = await fetchResult.getFirstObject();
console.info('getAlbumsPromise successfully, albumName: ' + album.albumName);
fetchResult.close();
}).catch((err) => {
......@@ -958,13 +931,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('deleteAssetDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -1026,13 +997,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('deleteDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -1086,26 +1055,24 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('registerChangeDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
let photoAsset = await fetchResult.getFirstObject();
if (photoAsset != undefined) {
console.info('photoAsset.displayName : ' + photoAsset.displayName);
}
let onCallback1 = (changeData: photoAccessHelper.ChangeData) => {
let onCallback1 = (changeData) => {
console.info('onCallback1 success, changData: ' + JSON.stringify(changeData));
//file had changed, do something
}
let onCallback2 = (changeData: photoAccessHelper.ChangeData) => {
let onCallback2 = (changeData) => {
console.info('onCallback2 success, changData: ' + JSON.stringify(changeData));
//file had changed, do something
}
......@@ -1153,25 +1120,23 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('offDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
let photoAsset = await fetchResult.getFirstObject();
if (photoAsset != undefined) {
console.info('photoAsset.displayName : ' + photoAsset.displayName);
}
let onCallback1 = (changeData: photoAccessHelper.ChangeData) => {
let onCallback1 = (changeData) => {
console.info('onCallback1 on');
}
let onCallback2 = (changeData: photoAccessHelper.ChangeData) => {
let onCallback2 = (changeData) => {
console.info('onCallback2 on');
}
// Register onCallback1.
......@@ -1194,7 +1159,7 @@ async function example() {
createDeleteRequest(uriList: Array&lt;string&gt;, callback: AsyncCallback&lt;void&gt;): void;
Creates a dialog box for deleting photos. This API uses an asynchronous callback to return the result. The deleted photos are moved to the trash.
Creates a dialog box for deleting media files. This API uses an asynchronous callback to return the result. The deleted media files are moved to the trash.
**Required permissions**: ohos.permission.WRITE_IMAGEVIDEO
......@@ -1204,7 +1169,7 @@ Creates a dialog box for deleting photos. This API uses an asynchronous callback
| Name | Type | Mandatory| Description |
| -------- | ------------------------- | ---- | ---------- |
| uriList | Array&lt;string&gt; | Yes | URIs of the media files to delete.|
| uriList | Array&lt;string&gt; | Yes | URIs of the media files to delete. A maximum of 300 media files can be deleted.|
| callback | AsyncCallback&lt;void&gt; | Yes | Callback that returns no value.|
**Error codes**
......@@ -1219,13 +1184,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createDeleteRequestDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -1254,7 +1217,7 @@ async function example() {
createDeleteRequest(uriList: Array&lt;string&gt;): Promise&lt;void&gt;;
Creates a dialog box for deleting photos. This API uses a promise to return the result. The deleted photos are moved to the trash.
Creates a dialog box for deleting media files. This API uses a promise to return the result. The deleted media files are moved to the trash.
**Required permissions**: ohos.permission.WRITE_IMAGEVIDEO
......@@ -1264,7 +1227,7 @@ Creates a dialog box for deleting photos. This API uses a promise to return the
| Name | Type | Mandatory| Description |
| -------- | ------------------------- | ---- | ---------- |
| uriList | Array&lt;string&gt; | Yes | URIs of the media files to delete.|
| uriList | Array&lt;string&gt; | Yes | URIs of the media files to delete. A maximum of 300 media files can be deleted.|
**Return value**
......@@ -1284,13 +1247,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('createDeleteRequestDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -1352,41 +1313,38 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOp: photoAccessHelper.FetchOptions = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
//Obtain the uri of the album
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await helper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE, fetchOp);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc("add_modified");
let fetchOptions: photoAccessHelper.FetchOptions = {
fetchColumns: [],
predicates: predicates
};
let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
let expectIndex = 1;
//Obtain the uri of the second file
let photoAsset: photoAccessHelper.PhotoAsset = await photoFetchResult.getObjectByPosition(expectIndex);
try {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset = new dataSharePredicates.DataSharePredicates();
let fetchOp = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
// Obtain the uri of the album
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE, fetchOp);
let album = await albumFetchResult.getFirstObject();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc(photoAccessHelper.PhotoKeys.DATE_MODIFIED);
let fetchOptions = {
fetchColumns: [photoAccessHelper.PhotoKeys.DATE_MODIFIED],
predicates: predicates
};
let photoFetchResult = await album.getAssets(fetchOptions);
let expectIndex = 1;
// Obtain the uri of the second file
let photoAsset = await photoFetchResult.getObjectByPosition(expectIndex);
photoAccessHelper.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions, (err, index) => {
try {
phAccessHelper.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions, (err, index) => {
if (err == undefined) {
console.info(`getPhotoIndex successfully and index is : ${index}`);
} else {
console.info(`getPhotoIndex failed;`);
}
} catch (error) {
console.info(`getPhotoIndex failed; error: ${error}`);
}
});
} catch (error) {
console.info(`getPhotoIndex failed; error: ${error}`);
}
}
```
......@@ -1429,37 +1387,36 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOp: photoAccessHelper.FetchOptions = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
//Obtain the uri of the album
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await helper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE, fetchOp);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc("add_modified");
let fetchOptions: photoAccessHelper.FetchOptions = {
fetchColumns: [],
predicates: predicates
};
let photoFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOptions);
let expectIndex = 1;
//Obtain the uri of the second file
let photoAsset = await photoFetchResult.getObjectByPosition(expectIndex);
photoAccessHelper.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions)
.then((index) => {
console.info(`getPhotoIndex successfully and index is : ${index}`);
}).catch((err) => {
try {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset = new dataSharePredicates.DataSharePredicates();
let fetchOp = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
// Obtain the uri of the album
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.FAVORITE, fetchOp);
let album = await albumFetchResult.getFirstObject();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc(photoAccessHelper.PhotoKeys.DATE_MODIFIED);
let fetchOptions = {
fetchColumns: [photoAccessHelper.PhotoKeys.DATE_MODIFIED],
predicates: predicates
};
let photoFetchResult = await album.getAssets(fetchOptions);
let expectIndex = 1;
// Obtain the uri of the second file
let photoAsset = await photoFetchResult.getObjectByPosition(expectIndex);
phAccessHelper.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions).then((index) => {
console.info(`getPhotoIndex successfully and index is : ${index}`);
}).catch((err) => {
console.info(`getPhotoIndex failed; error: ${err}`);
})
});
} catch (error) {
console.info(`getPhotoIndex failed; error: ${error}`);
}
}
```
......@@ -1584,21 +1541,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('photoAssetGetDemo');
try {
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: ['title'],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let title: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.TITLE;
let photoAssetTitle: photoAccessHelper.MemberType = photoAsset.get(title.toString());
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getFirstObject();
let title = photoAccessHelper.PhotoKeys.TITLE;
let photoAssetTitle = photoAsset.get(title.toString());
console.info('photoAsset Get photoAssetTitle = ', photoAssetTitle);
} catch (err) {
console.error('release failed. message = ', err);
......@@ -1633,20 +1588,18 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('photoAssetSetDemo');
try {
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: ['title'],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let title: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.TITLE.toString();
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getFirstObject();
let title = photoAccessHelper.PhotoKeys.TITLE.toString();
photoAsset.set(title, 'newTitle');
} catch (err) {
console.error('release failed. message = ', err);
......@@ -1682,25 +1635,23 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('commitModifyDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOption = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: ['title'],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let title: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.TITLE.toString();
let photoAssetTitle: photoAccessHelper.MemberType = photoAsset.get(title);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getFirstObject();
let title = photoAccessHelper.PhotoKeys.TITLE.toString();
let photoAssetTitle = photoAsset.get(title);
console.info('photoAsset get photoAssetTitle = ', photoAssetTitle);
photoAsset.set(title, 'newTitle2');
photoAsset.commitModify((err) => {
if (err == undefined) {
let newPhotoAssetTitle: photoAccessHelper.MemberType = photoAsset.get(title);
let newPhotoAssetTitle = photoAsset.get(title);
console.info('photoAsset get newPhotoAssetTitle = ', newPhotoAssetTitle);
} else {
console.error('commitModify failed, message =', err);
......@@ -1737,25 +1688,23 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('commitModifyDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: ['title'],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let title: photoAccessHelper.PhotoKeys = photoAccessHelper.PhotoKeys.TITLE.toString();
let photoAssetTitle: photoAccessHelper.MemberType = photoAsset.get(title);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getFirstObject();
let title = photoAccessHelper.PhotoKeys.TITLE.toString();
let photoAssetTitle = photoAsset.get(title);
console.info('photoAsset get photoAssetTitle = ', photoAssetTitle);
photoAsset.set(title, 'newTitle3');
try {
await photoAsset.commitModify();
let newPhotoAssetTitle: photoAccessHelper.MemberType = photoAsset.get(title);
let newPhotoAssetTitle = photoAsset.get(title);
console.info('photoAsset get newPhotoAssetTitle = ', newPhotoAssetTitle);
} catch (err) {
console.error('release failed. message = ', err);
......@@ -1798,7 +1747,7 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
async function example() {
console.info('openDemo');
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let testFileName = 'testFile' + Date.now() + '.jpg';
const photoAsset = await phAccessHelper.createAsset(testFileName);
photoAsset.open('rw', (err, fd) => {
if (fd != undefined) {
......@@ -1852,7 +1801,7 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
async function example() {
console.info('openDemo');
try {
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let testFileName = 'testFile' + Date.now() + '.jpg';
const photoAsset = await phAccessHelper.createAsset(testFileName);
let fd = await photoAsset.open('rw');
if (fd != undefined) {
......@@ -1898,7 +1847,7 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
async function example() {
console.info('getReadOnlyFdDemo');
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let testFileName = 'testFile' + Date.now() + '.jpg';
const photoAsset = await phAccessHelper.createAsset(testFileName);
photoAsset.getReadOnlyFd((err, fd) => {
if (fd != undefined) {
......@@ -1943,7 +1892,7 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
async function example() {
console.info('getReadOnlyFdDemo');
try {
let testFileName: string = 'testFile' + Date.now() + '.jpg';
let testFileName = 'testFile' + Date.now() + '.jpg';
const photoAsset = await phAccessHelper.createAsset(testFileName);
let fd = await photoAsset.getReadOnlyFd();
if (fd != undefined) {
......@@ -1985,18 +1934,16 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('closeDemo');
try {
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const photoAsset = await fetchResult.getFirstObject();
let fd = await photoAsset.open('rw');
console.info('file fd', fd);
......@@ -2045,18 +1992,16 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('closeDemo');
try {
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
let fd = await asset.open('rw');
console.info('file fd', fd);
......@@ -2096,16 +2041,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getThumbnailDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
console.info('asset displayName = ', asset.displayName);
asset.getThumbnail((err, pixelMap) => {
......@@ -2147,20 +2091,16 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
import image from '@ohos.multimedia.image';
async function example() {
console.info('getThumbnailDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let size: image.Size = { width: 720, height: 720 };
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let size = { width: 720, height: 720 };
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
console.info('asset displayName = ', asset.displayName);
asset.getThumbnail(size, (err, pixelMap) => {
......@@ -2207,19 +2147,16 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
import image from '@ohos.multimedia.image';
async function example() {
console.info('getThumbnailDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let size: image.Size = { width: 720, height: 720 };
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let size = { width: 720, height: 720 };
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
console.info('asset displayName = ', asset.displayName);
asset.getThumbnail(size).then((pixelMap) => {
......@@ -2262,17 +2199,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('setFavoriteDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
asset.setFavorite(true, (err) => {
if (err == undefined) {
......@@ -2321,17 +2256,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('setFavoriteDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
asset.setFavorite(true).then(function () {
console.info('setFavorite successfully');
......@@ -2375,17 +2308,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('setHiddenDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
asset.setHidden(true, (err) => {
if (err == undefined) {
......@@ -2436,20 +2367,18 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
// Restore a file from a hidden album. Before the operation, ensure that the file exists in the hidden album.
console.info('setHiddenDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumList: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.HIDDEN);
let albumList = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.HIDDEN);
const album = await albumList.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let fetchResult = await album.getAssets(fetchOption);
const asset = await fetchResult.getFirstObject();
asset.setHidden(false).then(() => {
console.info('setHidden successfully');
......@@ -2465,7 +2394,7 @@ getExif(): Promise&lt;string&gt;
Obtains a JSON string consisting of the EXIF tags of this JPG image. This API uses a promise to return the result.
**CAUTION**<br>This API returns a JSON string consisting of EXIF tags. The complete EXIF information consists of **all_exif** and **js-apis-photoAccessHelper.md**. These two fields must be passed in via **fetchColumns**.
**CAUTION**<br>This API returns a JSON string consisting of EXIF tags. The complete EXIF information consists of **all_exif** and **PhotoKeys.USER_COMMENT**. These two fields must be passed in via **fetchColumns**.
**System API**: This is a system API.
......@@ -2503,6 +2432,7 @@ For details about the EXIF tags, see [image.PropertyKey](js-apis-image.md#proper
| GPSDateStamp | GPS date stamp.|
| ImageDescription | Image description.|
| Make | Camera vendor.|
| MakeNote | Camera vendor.|
| Model | Model.|
| PhotoMode | Photo mode.|
| SensitivityType | Sensitivity type.|
......@@ -2524,22 +2454,23 @@ For details about the EXIF tags, see [image.PropertyKey](js-apis-image.md#proper
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('getExifDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
fetchColumns: [ 'all_exif', photoKeys.USER_COMMENT],
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.isNotNull('all_exif')
let fetchOptions = {
fetchColumns: ['all_exif', photoAccessHelper.PhotoKeys.USER_COMMENT],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
let fileAsset = await fetchResult.getFirstObject();
console.info('getExifDemo fileAsset displayName: ' + JSON.stringify(fileAsset.displayName));
let exifMessage = await fileAsset.getExif();
let userCommentKey = 'UserComment';
let userComment = JSON.stringify(JSON.parse(exifMessage), [userCommentKey]);
console.info('getExifDemo userComment: ' + JSON.stringify(userComment));
fetchResult.close();
} catch (err) {
console.error('getExifDemoCallback failed with error: ' + err);
......@@ -2553,7 +2484,7 @@ getExif(callback: AsyncCallback&lt;string&gt;): void
Obtains a JSON string consisting of the EXIF tags of this JPG image. This API uses an asynchronous callback to return the result.
**CAUTION**<br>This API returns a JSON string consisting of EXIF tags. The complete EXIF information consists of **all_exif** and **ImageVideoKey.USER_COMMENT**. These two fields must be passed in via **fetchColumns**.
**CAUTION**<br>This API returns a JSON string consisting of EXIF tags. The complete EXIF information consists of **all_exif** and **PhotoKeys.USER_COMMENT**. These two fields must be passed in via **fetchColumns**.
**System API**: This is a system API.
......@@ -2591,6 +2522,7 @@ For details about the EXIF tags, see [image.PropertyKey](js-apis-image.md#proper
| GPSDateStamp | GPS date stamp.|
| ImageDescription | Image description.|
| Make | Camera vendor.|
| MakeNote | Camera vendor.|
| Model | Model.|
| PhotoMode | Photo mode.|
| SensitivityType | Sensitivity type.|
......@@ -2612,23 +2544,24 @@ For details about the EXIF tags, see [image.PropertyKey](js-apis-image.md#proper
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('getExifDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
fetchColumns: [ 'all_exif', photoKeys.USER_COMMENT],
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.isNotNull('all_exif')
let fetchOptions = {
fetchColumns: ['all_exif', photoAccessHelper.PhotoKeys.USER_COMMENT],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
let fileAsset = await fetchResult.getFirstObject();
console.info('getExifDemo fileAsset displayName: ' + JSON.stringify(fileAsset.displayName));
let userCommentKey = 'UserComment';
fileAsset.getExif((err, exifMessage) => {
if (exifMessage != undefined) {
let userComment = JSON.stringify(JSON.parse(exifMessage), [userCommentKey]);
console.info('getExifDemo userComment: ' + JSON.stringify(userComment));
} else {
console.error('getExif failed, message = ', err);
}
......@@ -2670,19 +2603,17 @@ Sets user comment information of an image or video. This API uses a promise to r
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('setUserCommentDemo')
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
let fileAsset = await fetchResult.getFirstObject();
let userComment = 'test_set_user_comment';
await fileAsset.setUserComment(userComment);
} catch (err) {
......@@ -2716,19 +2647,17 @@ Sets user comment information of an image or video. This API uses an asynchronou
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('setUserCommentDemo')
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOptions);
let fileAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOptions);
let fileAsset = await fetchResult.getFirstObject();
let userComment = 'test_set_user_comment';
fileAsset.setUserComment(userComment, (err) => {
if (err === undefined) {
......@@ -2773,16 +2702,15 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getCountDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const fetchCount = fetchResult.getCount();
console.info('fetchCount = ', fetchCount);
}
......@@ -2814,18 +2742,17 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
const fetchCount = fetchResult.getCount();
console.info('count:' + fetchCount);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getLastObject();
let photoAsset = await fetchResult.getLastObject();
if (fetchResult.isAfterLast()) {
console.info('photoAsset isAfterLast displayName = ', photoAsset.displayName);
} else {
......@@ -2854,17 +2781,16 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('fetchResultCloseDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
try {
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
fetchResult.close();
console.info('close succeed.');
} catch (err) {
......@@ -2899,16 +2825,15 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getFirstObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
fetchResult.getFirstObject((err, photoAsset) => {
if (photoAsset != undefined) {
console.info('photoAsset displayName: ', photoAsset.displayName);
......@@ -2945,17 +2870,16 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getFirstObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getFirstObject();
console.info('photoAsset displayName: ', photoAsset.displayName);
}
```
......@@ -2986,16 +2910,15 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getNextObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
await fetchResult.getFirstObject();
if (fetchResult.isAfterLast()) {
fetchResult.getNextObject((err, photoAsset) => {
......@@ -3035,16 +2958,15 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getNextObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
await fetchResult.getFirstObject();
if (fetchResult.isAfterLast()) {
let photoAsset = await fetchResult.getNextObject();
......@@ -3079,16 +3001,15 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getLastObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
fetchResult.getLastObject((err, photoAsset) => {
if (photoAsset != undefined) {
console.info('photoAsset displayName: ', photoAsset.displayName);
......@@ -3125,17 +3046,16 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getLastObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getLastObject();
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getLastObject();
console.info('photoAsset displayName: ', photoAsset.displayName);
}
```
......@@ -3167,16 +3087,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getObjectByPositionDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
fetchResult.getObjectByPosition(0, (err, photoAsset) => {
if (photoAsset != undefined) {
console.info('photoAsset displayName: ', photoAsset.displayName);
......@@ -3219,17 +3138,16 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getObjectByPositionDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getObjectByPosition(0);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAsset = await fetchResult.getObjectByPosition(0);
console.info('photoAsset displayName: ', photoAsset.displayName);
}
```
......@@ -3260,16 +3178,15 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getAllObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let fetchResult = await phAccessHelper.getAssets(fetchOption);
fetchResult.getAllObjects((err, photoAssetList) => {
if (photoAssetList != undefined) {
console.info('photoAssetList length: ', photoAssetList.length);
......@@ -3306,17 +3223,16 @@ For details about the error codes, see [File Management Error Codes](../errorcod
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('getAllObjectDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let photoAssetList: photoAccessHelper.PhotoAsset = await fetchResult.getAllObjects();
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let photoAssetList = await fetchResult.getAllObjects();
console.info('photoAssetList length: ', photoAssetList.length);
}
```
......@@ -3367,16 +3283,15 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('albumGetAssetsDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchOption: photoAccessHelper.FetchOptions = {
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
......@@ -3426,17 +3341,16 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('albumGetAssetsDemoPromise');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions = {
fetchColumns: [],
predicates: predicates
};
let fetchOption: photoAccessHelper.FetchOptions = {
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
......@@ -3478,12 +3392,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('albumCommitModifyDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -3528,12 +3441,11 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
console.info('albumCommitModifyDemo');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let albumFetchOptions = {
fetchColumns: [],
predicates: predicates
};
......@@ -3577,20 +3489,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('addAssetsDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.addAssets([asset], (err) => {
if (err === undefined) {
console.info('album addAssets successfully');
......@@ -3638,20 +3549,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('addAssetsDemoPromise');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await phAccessHelper.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await phAccessHelper.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.addAssets([asset]).then(() => {
console.info('album addAssets successfully');
}).catch((err) => {
......@@ -3692,20 +3602,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('removeAssetsDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.removeAssets([asset], (err) => {
if (err === undefined) {
console.info('album removeAssets successfully');
......@@ -3753,20 +3662,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('removeAssetsDemoPromise');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.removeAssets([asset]).then(() => {
console.info('album removeAssets successfully');
}).catch((err) => {
......@@ -3810,20 +3718,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('recoverAssetsDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.recoverAssets([asset], (err) => {
if (err === undefined) {
console.info('album recoverAssets successfully');
......@@ -3874,20 +3781,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('recoverAssetsDemoPromise');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.recoverAssets([asset]).then(() => {
console.info('album recoverAssets successfully');
}).catch((err) => {
......@@ -3933,20 +3839,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('deleteAssetsDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.deleteAssets([asset], (err) => {
if (err === undefined) {
console.info('album deleteAssets successfully');
......@@ -3999,20 +3904,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('deleteAssetsDemoPromise');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.SYSTEM, photoAccessHelper.AlbumSubtype.TRASH);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.deleteAssets([asset]).then(() => {
console.info('album deleteAssets successfully');
}).catch((err) => {
......@@ -4058,20 +3962,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('setCoverUriDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.setCoverUri(asset.uri, (err) => {
if (err === undefined) {
console.info('album setCoverUri successfully');
......@@ -4124,20 +4027,19 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
```ts
import dataSharePredicates from '@ohos.data.dataSharePredicates';
import photoAccessHelper from '@ohos.file.photoAccessHelper';
async function example() {
try {
console.info('setCoverUriDemoCallback');
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
let fetchOption: photoAccessHelper.FetchOptions = {
let predicates = new dataSharePredicates.DataSharePredicates();
let fetchOption = {
fetchColumns: [],
predicates: predicates
};
let albumFetchResult: photoAccessHelper.FetchResult<photoAccessHelper.Album> = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album: photoAccessHelper.Album = await albumFetchResult.getFirstObject();
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> = await album.getAssets(fetchOption);
let asset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
let albumFetchResult = await phAccessHelper.getAlbums(photoAccessHelper.AlbumType.USER, photoAccessHelper.AlbumSubtype.USER_GENERIC);
let album = await albumFetchResult.getFirstObject();
let fetchResult = await album.getAssets(fetchOption);
let asset = await fetchResult.getFirstObject();
album.setCoverUri(asset.uri, (err) => {
if (err === undefined) {
console.info('album setCoverUri successfully');
......
en/application-dev/reference/apis/js-apis-userFileManager.md
浏览文件 @ c4410157
......@@ -1433,37 +1433,35 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
import dataSharePredicates from '@ohos.data.dataSharePredicates';
async function example() {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset = new dataSharePredicates.DataSharePredicates();
let fetchOp = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
//Obtain the uri of the album
let albumFetchResult = await mgr.getAlbums(userFileManager.AlbumType.SYSTEM, userFileManager.AlbumSubtype.FAVORITE, fetchOp);
let album = await albumFetchResult.getFirstObject();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc("add_modified");
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let photoFetchResult = await album.getPhotoAssets(fetchOptions);
let expectIndex = 1;
//Obtain the uri of the second file
let photoAsset = await photoFetchResult.getPositionObject(expectIndex);
mgr.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions, (err, index) => {
try {
try {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset = new dataSharePredicates.DataSharePredicates();
let fetchOp = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
// Obtain the uri of the album
let albumFetchResult = await mgr.getAlbums(userFileManager.AlbumType.SYSTEM, userFileManager.AlbumSubType.FAVORITE, fetchOp);
let album = await albumFetchResult.getFirstObject();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc(userFileManager.ImageVideoKey.DATE_MODIFIED);
let fetchOptions = {
fetchColumns: [userFileManager.ImageVideoKey.DATE_MODIFIED],
predicates: predicates
};
let photoFetchResult = await album.getPhotoAssets(fetchOptions);
let expectIndex = 1;
// Obtain the uri of the second file
let photoAsset = await photoFetchResult.getPositionObject(expectIndex);
mgr.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions, (err, index) => {
if (err == undefined) {
console.info(`getPhotoIndex successfully and index is : ${index}`);
} else {
console.info(`getPhotoIndex failed;`);
}
} catch (error) {
console.info(`getPhotoIndex failed; error: ${error}`);
}
});
} catch (error) {
console.info(`getPhotoIndex failed; error: ${error}`);
}
}
```
......@@ -1508,33 +1506,34 @@ For details about the error codes, see [Universal Error Codes](../errorcodes/err
import dataSharePredicates from '@ohos.data.dataSharePredicates';
async function example() {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset = new dataSharePredicates.DataSharePredicates();
let fetchOp = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
//Obtain the uri of the album
let albumFetchResult = await mgr.getAlbums(userFileManager.AlbumType.SYSTEM, userFileManager.AlbumSubtype.FAVORITE, fetchOp);
let album = await albumFetchResult.getFirstObject();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc("add_modified");
let fetchOptions = {
fetchColumns: [],
predicates: predicates
};
let photoFetchResult = await album.getPhotoAssets(fetchOptions);
let expectIndex = 1;
//Obtain the uri of the second file
let photoAsset = await photoFetchResult.getPositionObject(expectIndex);
mgr.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions)
.then((index) => {
console.info(`getPhotoIndex successfully and index is : ${index}`);
}).catch((err) => {
try {
console.info('getPhotoIndexDemo');
let predicatesForGetAsset = new dataSharePredicates.DataSharePredicates();
let fetchOp = {
fetchColumns: [],
predicates: predicatesForGetAsset
};
// Obtain the uri of the album
let albumFetchResult = await mgr.getAlbums(userFileManager.AlbumType.SYSTEM, userFileManager.AlbumSubType.FAVORITE, fetchOp);
let album = await albumFetchResult.getFirstObject();
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.orderByAsc(userFileManager.ImageVideoKey.DATE_MODIFIED);
let fetchOptions = {
fetchColumns: [userFileManager.ImageVideoKey.DATE_MODIFIED],
predicates: predicates
};
let photoFetchResult = await album.getPhotoAssets(fetchOptions);
let expectIndex = 1;
// Obtain the uri of the second file
let photoAsset = await photoFetchResult.getPositionObject(expectIndex);
mgr.getPhotoIndex(photoAsset.uri, album.albumUri, fetchOptions).then((index) => {
console.info(`getPhotoIndex successfully and index is : ${index}`);
}).catch((err) => {
console.info(`getPhotoIndex failed; error: ${err}`);
})
});
} catch (error) {
console.info(`getPhotoIndex failed; error: ${error}`);
}
}
```
......@@ -2565,15 +2564,18 @@ async function example() {
try {
console.info('getExifDemo');
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.isNotNull('all_exif')
let fetchOptions = {
fetchColumns: [ 'all_exif', ImageVideoKey.USER_COMMENT],
fetchColumns: ['all_exif', userFileManager.ImageVideoKey.USER_COMMENT],
predicates: predicates
};
let fetchResult = await mgr.getPhotoAssets(fetchOptions);
let fileAsset = await fetchResult.getFirstObject();
console.info('getExifDemo fileAsset displayName: ' + JSON.stringify(fileAsset.displayName));
let exifMessage = await fileAsset.getExif();
let userCommentKey = 'UserComment';
let userComment = JSON.stringify(JSON.parse(exifMessage), [userCommentKey]);
console.info('getExifDemo userComment: ' + JSON.stringify(userComment));
fetchResult.close();
} catch (err) {
console.error('getExifDemoCallback failed with error: ' + err);
......@@ -2651,16 +2653,19 @@ async function example() {
try {
console.info('getExifDemo');
let predicates = new dataSharePredicates.DataSharePredicates();
predicates.isNotNull('all_exif')
let fetchOptions = {
fetchColumns: [ 'all_exif', ImageVideoKey.USER_COMMENT],
fetchColumns: ['all_exif', userFileManager.ImageVideoKey.USER_COMMENT],
predicates: predicates
};
let fetchResult = await mgr.getPhotoAssets(fetchOptions);
let fileAsset = await fetchResult.getFirstObject();
console.info('getExifDemo fileAsset displayName: ' + JSON.stringify(fileAsset.displayName));
let userCommentKey = 'UserComment';
fileAsset.getExif((err, exifMessage) => {
if (exifMessage != undefined) {
let userComment = JSON.stringify(JSON.parse(exifMessage), [userCommentKey]);
console.info('getExifDemo userComment: ' + JSON.stringify(userComment));
} else {
console.error('getExif failed, message = ', err);
}
......
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