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“70b4a1f08af8df2d915e04c7f3d0863998d45563”上不存在“...monthly-202211/js-apidiff-compiler-and-runtime.md”
未验证 提交 bc85ba06 编写于 作者: O openharmony_ci 提交者： Gitee
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!8745 modified js-apis-medialibrary.md describe the error 

Merge pull request !8745 from 胡伟奇/modify_medialibrary_md
上级 0834d4a9 11388efe
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zh-cn/application-dev/reference/apis/js-apis-medialibrary.md
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......@@ -4,7 +4,7 @@
> 该组件从API Version 6开始支持。后续版本如有新增内容，则采用上角标单独标记该内容的起始版本。
## 导入模块
```
```js
import mediaLibrary from '@ohos.multimedia.mediaLibrary';
```
......@@ -32,13 +32,13 @@ getMediaLibrary(context: Context): MediaLibrary
**示例：（从API Version 9开始）**
```
```ts
var media = mediaLibrary.getMediaLibrary(this.context);
```
**示例：（API Version 8）**
```
```js
import featureAbility from '@ohos.ability.featureAbility';
var context = featureAbility.getContext()
......@@ -90,7 +90,7 @@ getFileAssets(options: MediaFetchOptions, callback: AsyncCallback<FetchFileRe
**示例：**
```
```js
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE
let imagesfetchOp = {
......@@ -134,7 +134,7 @@ getFileAssets(options: MediaFetchOptions): Promise<FetchFileResult>
**示例：**
```
```js
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE
let imagesfetchOp = {
......@@ -165,7 +165,7 @@ on(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'|
**示例：**
```
```js
media.on('imageChange', () => {
// image file had changed, do something
})
......@@ -187,7 +187,7 @@ off(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'
**示例：**
```
```js
media.off('imageChange', () => {
// stop listening success
})
......@@ -214,7 +214,7 @@ createAsset(mediaType: MediaType, displayName: string, relativePath: string, cal
**示例：**
```
```js
async function example() {
// 使用Callback方式创建Image类型文件
let mediaType = mediaLibrary.MediaType.IMAGE;
......@@ -256,7 +256,7 @@ createAsset(mediaType: MediaType, displayName: string, relativePath: string): Pr
**示例：**
```
```js
let DIR_CAMERA = mediaLibrary.DirectoryType.DIR_CAMERA;
media.getPublicDirectory(DIR_CAMERA).then(function(dicResult){
console.info("getPublicDirectory successfully:"+ JSON.stringify(dicResult));
......@@ -282,7 +282,7 @@ getPublicDirectory(type: DirectoryType, callback: AsyncCallback<string>):
**示例：**
```
```js
let DIR_CAMERA = mediaLibrary.DirectoryType.DIR_CAMERA;
media.getPublicDirectory(DIR_CAMERA, (err, dicResult) => {
if (dicResult == 'Camera/') {
......@@ -315,7 +315,7 @@ getPublicDirectory(type: DirectoryType): Promise<string>
**示例：**
```
```js
async function example() {
let DIR_CAMERA = mediaLibrary.DirectoryType.DIR_CAMERA;
const dicResult = await media.getPublicDirectory(DIR_CAMERA);
......@@ -346,7 +346,7 @@ getAlbums(options: MediaFetchOptions, callback: AsyncCallback<Array&lt;Album&gt;
**示例：**
```
```js
let AlbumNoArgsfetchOp = {
selections: '',
selectionArgs: [],
......@@ -386,7 +386,7 @@ getAlbums(options: MediaFetchOptions): Promise<Array&lt;Album&gt;>
**示例：**
```
```js
let AlbumNoArgsfetchOp = {
selections: '',
selectionArgs: [],
......@@ -415,7 +415,7 @@ release(callback: AsyncCallback&lt;void&gt;): void
**示例：**
```
```js
var media = mediaLibrary.getMediaLibrary(context);
media.release((err) => {
// do something
......@@ -439,7 +439,7 @@ release(): Promise&lt;void&gt;
**示例：**
```
```js
media.release()
```
......@@ -462,7 +462,7 @@ storeMediaAsset(option: MediaAssetOption, callback: AsyncCallback&lt;string&gt;)
**示例：**
```
```js
let option = {
src : "/data/storage/el2/base/haps/entry/image.png",
mimeType : "image/*",
......@@ -476,7 +476,7 @@ mediaLibrary.getMediaLibrary().storeMediaAsset(option, (err, value) => {
console.log("Media resources stored. ");
// Obtain the URI that stores media resources.
});
```
```
### storeMediaAsset<sup>(deprecated)</sup>
......@@ -503,7 +503,7 @@ storeMediaAsset(option: MediaAssetOption): Promise&lt;string&gt;
**示例：**
```
```js
let option = {
src : "/data/storage/el2/base/haps/entry/image.png",
mimeType : "image/*",
......@@ -515,7 +515,7 @@ mediaLibrary.getMediaLibrary().storeMediaAsset(option).then((value) => {
}).catch((err) => {
console.log("An error occurred when storing media resources.");
});
```
```
### startImagePreview<sup>(deprecated)</sup>
......@@ -538,7 +538,7 @@ startImagePreview(images: Array&lt;string&gt;, index: number, callback: AsyncCal
**示例：**
```
```js
let images = [
"dataability:///media/xxxx/2",
"dataability:///media/xxxx/3"
......@@ -557,7 +557,7 @@ mediaLibrary.getMediaLibrary().startImagePreview(images, index, (err) => {
}
console.log("Succeeded in previewing the images.");
});
```
```
### startImagePreview<sup>(deprecated)</sup>
......@@ -579,7 +579,7 @@ startImagePreview(images: Array&lt;string&gt;, callback: AsyncCallback&lt;void&g
**示例：**
```
```js
let images = [
"dataability:///media/xxxx/2",
"dataability:///media/xxxx/3"
......@@ -597,7 +597,7 @@ mediaLibrary.getMediaLibrary().startImagePreview(images, (err) => {
}
console.log("Succeeded in previewing the images.");
});
```
```
### startImagePreview<sup>(deprecated)</sup>
......@@ -625,7 +625,7 @@ startImagePreview(images: Array&lt;string&gt;, index?: number): Promise&lt;void&
**示例：**
```
```js
let images = [
"dataability:///media/xxxx/2",
"dataability:///media/xxxx/3"
......@@ -642,7 +642,7 @@ mediaLibrary.getMediaLibrary().startImagePreview(images, index).then(() => {
}).catch((err) => {
console.log("An error occurred when previewing the images.");
});
```
```
### startMediaSelect<sup>(deprecated)</sup>
......@@ -664,7 +664,7 @@ startMediaSelect(option: MediaSelectOption, callback: AsyncCallback&lt;Array&lt;
**示例：**
```
```js
let option = {
type : "media",
count : 2
......@@ -677,7 +677,7 @@ mediaLibrary.getMediaLibrary().startMediaSelect(option, (err, value) => {
console.log("Media resources selected.");
// Obtain the media selection value.
});
```
```
### startMediaSelect<sup>(deprecated)</sup>
......@@ -704,7 +704,7 @@ startMediaSelect(option: MediaSelectOption): Promise&lt;Array&lt;string&gt;&gt;
**示例：**
```
```js
let option = {
type : "media",
count : 2
......@@ -716,7 +716,7 @@ mediaLibrary.getMediaLibrary().startMediaSelect(option).then((value) => {
console.log("An error occurred when selecting media resources.");
});
```
```
## FileAsset<sup>7+</sup>
......@@ -769,7 +769,7 @@ isDirectory(callback: AsyncCallback&lt;boolean&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -805,7 +805,7 @@ isDirectory():Promise&lt;boolean&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -843,7 +843,7 @@ commitModify(callback: AsyncCallback&lt;void&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -880,7 +880,7 @@ commitModify(): Promise&lt;void&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -918,7 +918,7 @@ open(mode: string, callback: AsyncCallback&lt;number&gt;): void
**示例：**
```
```js
async function example() {
let mediaType = mediaLibrary.MediaType.IMAGE;
let DIR_IMAGE = mediaLibrary.DirectoryType.DIR_IMAGE;
......@@ -960,7 +960,7 @@ open(mode: string): Promise&lt;number&gt;
**示例：**
```
```js
async function example() {
let mediaType = mediaLibrary.MediaType.IMAGE;
let DIR_IMAGE = mediaLibrary.DirectoryType.DIR_IMAGE;
......@@ -995,7 +995,7 @@ close(fd: number, callback: AsyncCallback&lt;void&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1048,7 +1048,7 @@ close(fd: number): Promise&lt;void&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1096,7 +1096,7 @@ getThumbnail(callback: AsyncCallback&lt;image.PixelMap&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1133,7 +1133,7 @@ getThumbnail(size: Size, callback: AsyncCallback&lt;image.PixelMap&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1176,7 +1176,7 @@ getThumbnail(size?: Size): Promise&lt;image.PixelMap&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1218,7 +1218,7 @@ favorite(isFavorite: boolean, callback: AsyncCallback&lt;void&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1260,7 +1260,7 @@ favorite(isFavorite: boolean): Promise&lt;void&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1298,7 +1298,7 @@ isFavorite(callback: AsyncCallback&lt;boolean&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1338,7 +1338,7 @@ isFavorite():Promise&lt;boolean&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1379,7 +1379,7 @@ trash(isTrash: boolean, callback: AsyncCallback&lt;void&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1424,7 +1424,7 @@ trash(isTrash: boolean): Promise&lt;void&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1462,7 +1462,7 @@ isTrash(callback: AsyncCallback&lt;boolean&gt;): void
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1507,7 +1507,7 @@ isTrash():Promise&lt;boolean&gt;
**示例：**
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1527,6 +1527,239 @@ async function example() {
}
```
### deleteAsset<sup>8+</sup>
deleteAsset(uri: string): Promise<void>;
删除媒体文件资源
**系统接口**：此接口为系统接口。
**需要权限**：ohos.permission.READ_MEDIA and ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
**参数：**
| 参数名 | 类型 | 必填 | 说明 |
| -------- | ---------------------------- | ---- | --------------- |
| uri | string | 是 | 需要删除的媒体文件资源的uri |
**示例：**
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let fileType = mediaLibrary.MediaType.FILE
let option = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [fileType.toString()],
};
const context = getContext(this);
var media = mediaLibrary.getMediaLibrary(context);
const fetchFileResult = await media.getFileAssets(option);
let asset = await fetchFileResult.getFirstObject();
if (asset == undefined) {
console.error('asset not exist')
return
}
media.deleteAsset(asset.uri).then(() => {
console.info("deleteAsset successfully");
}).catch((err) => {
console.info("deleteAsset failed with error:"+ err);
});
}
```
deleteAsset(uri: string, callback: AsyncCallback<void>): void;
删除媒体文件资源
**系统接口**：此接口为系统接口。
**需要权限**：ohos.permission.READ_MEDIA and ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
**参数：**
| 参数名 | 类型 | 必填 | 说明 |
| -------- | ---------------------------- | ---- | --------------- |
| uri | string | 是 | 需要删除的媒体文件资源的uri |
**示例：**
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let fileType = mediaLibrary.MediaType.FILE
let option = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [fileType.toString()],
};
const context = getContext(this);
var media = mediaLibrary.getMediaLibrary(context);
const fetchFileResult = await media.getFileAssets(option);
let asset = await fetchFileResult.getFirstObject();
if (asset == undefined) {
console.error('asset not exist')
return
}
media.deleteAsset(asset.uri, (err) => {
if (err != undefined) {
console.info("deleteAsset successfully");
} else {
console.info("deleteAsset failed with error:"+ err);
}
});
}
```
### getActivePeers<sup>8+</sup>
getActivePeers(): Promise<Array<PeerInfo>>;
获取在线对端设备的信息，使用Promise方式返回异步结果
**系统接口**：此接口为系统接口。
**需要权限**：ohos.permission.READ_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.DistributedCore
**返回值：**
| 类型 | 说明 |
| ------------------- | -------------------- |
| Promise<Array<PeerInfo>> | 返回获取的所有在线对端设备的PeerInfo |
**示例：**
```js
async function example() {
const context = getContext(this);
var media = mediaLibrary.getMediaLibrary(context);
media.getActivePeers().then((devicesInfo) => {
if (devicesInfo != undefined) {
for (let i = 0; i < devicesInfo.length; i++) {
console.info('get distributed info ' + devicesInfo[i].deviceName + devicesInfo[i].networkId);
}
} else {
console.info('get distributed info is undefined!')
}
}).catch((err) => {
console.info("get distributed info failed with error:" + err);
});
}
```
getActivePeers(callback: AsyncCallback<Array<PeerInfo>>): void;
获取在线对端设备的信息，使用callback方式返回异步结果。
**系统接口**：此接口为系统接口。
**需要权限**：ohos.permission.READ_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.DistributedCore
**返回值：**
| 类型 | 说明 |
| ------------------- | -------------------- |
| callback: AsyncCallback<Array<PeerInfo>> | 返回获取的所有在线对端设备的PeerInfo |
**示例：**
```js
async function example() {
const context = getContext(this);
var media = mediaLibrary.getMediaLibrary(context);
media.getActivePeers((err, devicesInfo) => {
if (devicesInfo != undefined) {
for (let i = 0; i < devicesInfo.length; i++) {
console.info('get distributed info ' + devicesInfo[i].deviceName + devicesInfo[i].networkId);
}
} else {
console.info('get distributed fail, message = ' + err)
}
})
}
```
### getAllPeers<sup>8+</sup>
getAllPeers(): Promise<Array<PeerInfo>>;
获取所有对端设备的信息，使用Promise方式返回异步结果
**系统接口**：此接口为系统接口。
**需要权限**：ohos.permission.READ_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.DistributedCore
**返回值：**
| 类型 | 说明 |
| ------------------- | -------------------- |
| Promise<Array<PeerInfo>> | 返回获取的所有对端设备的PeerInfo |
**示例：**
```js
async function example() {
const context = getContext(this);
var media = mediaLibrary.getMediaLibrary(context);
media.getAllPeers().then((devicesInfo) => {
if (devicesInfo != undefined) {
for (let i = 0; i < devicesInfo.length; i++) {
console.info('get distributed info ' + devicesInfo[i].deviceName + devicesInfo[i].networkId);
}
} else {
console.info('get distributed info is undefined!')
}
}).catch((err) => {
console.info("get distributed info failed with error:" + err);
});
}
```
getAllPeers(callback: AsyncCallback<Array<PeerInfo>>): void;
获取所有对端设备的信息，使用callback方式返回异步结果。
**系统接口**：此接口为系统接口。
**需要权限**：ohos.permission.READ_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.DistributedCore
**返回值：**
| 类型 | 说明 |
| ------------------- | -------------------- |
| callback: AsyncCallback<Array<PeerInfo>> | 返回获取的所有对端设备的PeerInfo |
**示例：**
```js
async function example() {
const context = getContext(this);
var media = mediaLibrary.getMediaLibrary(context);
media.getAllPeers((err, devicesInfo) => {
if (devicesInfo != undefined) {
for (let i = 0; i < devicesInfo.length; i++) {
console.info('get distributed info ' + devicesInfo[i].deviceName + devicesInfo[i].networkId);
}
} else {
console.info('get distributed fail, message = ' + err)
}
})
}
```
## FetchFileResult<sup>7+</sup>
文件检索结果集。
......@@ -1547,7 +1780,7 @@ getCount(): number
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let fileType = mediaLibrary.MediaType.FILE;
......@@ -1578,7 +1811,7 @@ isAfterLast(): boolean
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1616,7 +1849,7 @@ close(): void
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1647,7 +1880,7 @@ getFirstObject(callback: AsyncCallback&lt;FileAsset&gt;): void
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1684,7 +1917,7 @@ getFirstObject(): Promise&lt;FileAsset&gt;
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1719,7 +1952,7 @@ async function example() {
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1756,7 +1989,7 @@ async function example() {
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1789,7 +2022,7 @@ getLastObject(callback: AsyncCallback&lt;FileAsset&gt;): void
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1826,7 +2059,7 @@ getLastObject(): Promise&lt;FileAsset&gt;
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1858,7 +2091,7 @@ getPositionObject(index: number, callback: AsyncCallback&lt;FileAsset&gt;): void
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1901,7 +2134,7 @@ getPositionObject(index: number): Promise&lt;FileAsset&gt;
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1913,9 +2146,9 @@ async function example() {
};
let fetchFileResult = await media.getFileAssets(getImageOp);
fetchFileResult.getPositionObject(1) .then(function (fileAsset){
console.log('[Demo] fileAsset.displayName : ' + fileAsset.displayName);
console.log('fileAsset.displayName : ' + fileAsset.displayName);
}).catch(function (err) {
console.info("[Demo] getFileAssets failed with error:" + err);
console.info("getFileAssets failed with error:" + err);
});
}
```
......@@ -1936,7 +2169,7 @@ getAllObject(callback: AsyncCallback&lt;Array&lt;FileAsset&gt;&gt;): void
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -1973,7 +2206,7 @@ getAllObject(): Promise&lt;Array&lt;FileAsset&gt;&gt;
**示例**：
```
```js
async function example() {
let fileKeyObj = mediaLibrary.FileKey
let imageType = mediaLibrary.MediaType.IMAGE;
......@@ -2024,7 +2257,7 @@ commitModify(callback: AsyncCallback&lt;void&gt;): void
**示例**：
```
```js
async function example() {
let AlbumNoArgsfetchOp = {
selections: '',
......@@ -2061,7 +2294,7 @@ commitModify(): Promise&lt;void&gt;
**示例**：
```
```js
async function example() {
let AlbumNoArgsfetchOp = {
selections: '',
......@@ -2097,7 +2330,7 @@ getFileAssets(options: MediaFetchOptions, callback: AsyncCallback&lt;FetchFileRe
**示例**：
```
```js
async function example() {
let AlbumNoArgsfetchOp = {
selections: '',
......@@ -2140,7 +2373,7 @@ async function example() {
**示例**：
```
```js
async function example() {
let AlbumNoArgsfetchOp = {
selections: '',
......@@ -2163,7 +2396,8 @@ async function example() {
## PeerInfo<sup>8+</sup>
注册设备的信息。
此接口为系统接口。
**系统接口**：此接口为系统接口。
**系统能力：** 以下各项对应的系统能力均为SystemCapability.Multimedia.MediaLibrary.DistributedCore
......@@ -2235,7 +2469,8 @@ async function example() {
## DeviceType<sup>8+</sup>
枚举，设备类型。
此接口为系统接口。
**系统接口**：此接口为系统接口。
**系统能力：** 以下各项对应的系统能力均为SystemCapability.Multimedia.MediaLibrary.DistributedCore
......@@ -2267,7 +2502,8 @@ async function example() {
## Size<sup>8+</sup>
图片尺寸。
系统能力： 以下各项对应的系统能力均为SystemCapability.Multimedia.MediaLibrary.Core
**系统能力：** 以下各项对应的系统能力均为SystemCapability.Multimedia.MediaLibrary.Core
| 名称 | 类型 | 可读 | 可写 | 说明 |
| ------ | ------ | ---- | ---- | -------- |
......@@ -2302,3 +2538,4 @@ async function example() {
| type | string | 是 | 媒体类型，包括：image, video, media，当前仅支持media类型 |
| count | number | 是 | 媒体选择，count = 1表示单选，count大于1表示多选。 |
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