Skip to content

D
Docs

OpenHarmony / Docs
1 年多 前同步成功

通知 159
Star 292
Fork 28
D
Docs
提交 2bd6e6ce 编写于 作者: P panqiangbiao
浏览文件
操作

fix code issue 

Signed-off-by: Npanqiangbiao <panqiangbiao@huawei.com>
上级 1f2823b2
隐藏空白更改
内联 并排
Showing with 113 addition and 113 deletion
zh-cn/application-dev/reference/apis/js-apis-medialibrary.md
浏览文件 @ 2bd6e6ce
媒体库管理
==========
> ![icon-note.gif](public_sys-resources/icon-note.gif) **说明：**
> 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
---------
```
import medialibrary from '@ohos.multimedia.medialibrary';
import mediaLibrary from '@ohos.multimedia.medialibrary';
```
......@@ -19,7 +21,7 @@ function getMediaLibrary(context: Context): MediaLibrary;
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
**参数：**
**参数：**
| 参数名 | 类型 | 必填 | 说明 |
| ------- | ------- | ---- | -------------------- |
......@@ -29,19 +31,18 @@ function getMediaLibrary(context: Context): MediaLibrary;
| 类型 | 说明 |
| ------------ | :----- |
| MediaLibrary | 媒体库实例 |
| mediaLibrary | 媒体库实例 |
**示例：**
```
import featureAbility from '@ohos.ability.featureAbility';
import mediaLibrary from '@ohos.multimedia.mediaLibrary';
var context = featureAbility.getContext()
var mediaLibrary = mediaLibrary.getMediaLibrary(context);
var media = mediaLibrary.getMediaLibrary(context);
```
## medialibrary.getFileAssets
## mediaLibrary.getFileAssets<sup>8+</sup>
getFileAssets(options: MediaFetchOptions, callback: AsyncCallback&lt;FetchFileResult&gt;): void;
......@@ -68,9 +69,9 @@ let imagesfetchOp = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
};
medialibrary.getFileAssets(imagesfetchOp, (error, fetchFileResult) => {
mediaLibrary.getFileAssets(imagesfetchOp, (error, fetchFileResult) => {
if (fetchFileResult != undefined) {
console.info('MediaLibraryTest : ASSET_CALLBACK fetchFileResult success');
console.info('mediaLibraryTest : ASSET_CALLBACK fetchFileResult success');
fetchFileResult.getAllObject((err, fileAssetList) => {
if (fileAssetList != undefined) {
fileAssetList.forEach(getAllObjectInfo);
......@@ -79,7 +80,7 @@ medialibrary.getFileAssets(imagesfetchOp, (error, fetchFileResult) => {
}
});
```
## medialibrary.getFileAssets
## mediaLibrary.getFileAssets<sup>8+</sup>
getFileAssets(options: MediaFetchOptions): Promise&lt;FetchFileResult&gt;;
......@@ -110,14 +111,14 @@ let imagesfetchOp = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
};
medialibrary.getFileAssets(imagesfetchOp).then(function(fetchFileResult){
mediaLibrary.getFileAssets(imagesfetchOp).then(function(fetchFileResult){
console.info("getFileAssets successfully:"+ JSON.stringify(dir));
}).catch(function(err){
console.info("getFileAssets failed with error:"+ err);
});
```
## medialibrary.on
## mediaLibrary.on<sup>8+</sup>
on(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'|'fileChange'|'remoteFileChange', callback: Callback&lt;void&gt;): void;
......@@ -131,17 +132,17 @@ on(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'|
| 参数名 | 类型 | 必填 | 说明 |
| -------- | ---------------- | ---- | ------------------- |
| type | type | 是 | 媒体类型 <br/>'deviceChange'：&nbsp;注册设备变更 <br/>'albumChange'：&nbsp;相册变更<br/>'imageChange'：&nbsp;图片文件变更<br/>’audioChange‘： &nbsp;音频文件变更<br/>‘videoChange’： &nbsp;视频文件变更<br/>‘'fileChange'： &nbsp;文件变更<br/>‘remoteFileChange’：&nbsp;注册设备上文件变更 |
| type | type | 是 | 媒体类型 <br/>'deviceChange'：&nbsp;注册设备变更 <br/>'albumChange'：&nbsp;相册变更<br/>'imageChange'：&nbsp;图片文件变更<br/>'audioChange'： &nbsp;音频文件变更<br/>'videoChange'： &nbsp;视频文件变更<br/>'fileChange'： &nbsp;文件变更<br/>'remoteFileChange'：&nbsp;注册设备上文件变更 |
| callback | callback&lt;void&gt; | 是 | 回调返回空 |
**示例：**
```
medialibrary.on('imageChange', () => {
mediaLibrary.on('imageChange', () => {
// image file had changed, do something
})
```
## medialibrary.off
## mediaLibrary.off<sup>8+</sup>
off(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'|'fileChange'|'remoteFileChange', callback?: Callback&lt;void&gt;): void;
......@@ -157,24 +158,24 @@ off(type: 'deviceChange'|'albumChange'|'imageChange'|'audioChange'|'videoChange'
| 参数名 | 类型 | 必填 | 说明 |
| -------- | ---------------- | ---- | ------------------- |
| type | type | 是 | 媒体类型 <br/>'deviceChange'：&nbsp;注册设备变更 <br/>'albumChange'：&nbsp;相册变更<br/>'imageChange'：&nbsp;图片文件变更<br/>’audioChange‘： &nbsp;音频文件变更<br/>‘videoChange’： &nbsp;视频文件变更<br/>‘'fileChange'： &nbsp;文件变更<br/>‘remoteFileChange’：&nbsp;注册设备上文件变更 |
| type | type | 是 | 媒体类型 <br/>'deviceChange'：&nbsp;注册设备变更 <br/>'albumChange'：&nbsp;相册变更<br/>'imageChange'：&nbsp;图片文件变更<br/>'audioChange'： &nbsp;音频文件变更<br/>'videoChange'： &nbsp;视频文件变更<br/>'fileChange'： &nbsp;文件变更<br/>'remoteFileChange'：&nbsp;注册设备上文件变更 |
| callback | callback&lt;void&gt; | 否 | 回调返回空 |
**示例：**
```
medialibrary.off('imageChange', () => {
mediaLibrary.off('imageChange', () => {
// stop listening success
})
```
## medialibrary.createAsset
## mediaLibrary.createAsset <sup>8+</sup>
createAsset(mediaType: MediaType, displayName: string, relativePath: string, callback: AsyncCallback&lt;FileAsset&gt;): void;
创建媒体资源，使用callback方式返回结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -193,7 +194,7 @@ createAsset(mediaType: MediaType, displayName: string, relativePath: string, cal
// 使用Callback方式创建Image类型文件
let mediaType = mediaLibrary.MediaType.IMAGE;
let path = "Pictures/";
medialibrary.createAsset(mediaType, “imageCallBack.jpg”, path, (err, fileAsset) => {
mediaLibrary.createAsset(mediaType, 'imageCallBack.jpg', path, (err, fileAsset) => {
if (fileAsset != undefined) {
console.info('createAsset successfully, message = ' + err);
} else {
......@@ -202,13 +203,13 @@ medialibrary.createAsset(mediaType, “imageCallBack.jpg”, path, (err, fileAss
});
```
## medialibrary.createAsset
## mediaLibrary.createAsset<sup>8+</sup>
createAsset(mediaType: MediaType, displayName: string, relativePath: string): Promise&lt;FileAsset&gt;;
创建媒体资源，使用Promise方式返回结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -232,14 +233,14 @@ createAsset(mediaType: MediaType, displayName: string, relativePath: string): Pr
// 使用Promise方式创建Image类型文件
let mediaType = mediaLibrary.MediaType.IMAGE;
let path = "Pictures/";
medialibrary.createAsset(mediaType, "image01.jpg", path).then (function (asset) {
mediaLibrary.createAsset(mediaType, "image01.jpg", path).then (function (asset) {
console.info("createAsset successfully:"+ JSON.stringify(asset));
}).catch(function(err){
console.info("createAsset failed with error:"+ err);
});
```
## medialibrary.getPublicDirectory
## mediaLibrary.getPublicDirectory<sup>8+</sup>
getPublicDirectory(type: DirectoryType, callback: AsyncCallback&lt;string&gt;): void;
......@@ -261,16 +262,16 @@ getPublicDirectory(type: DirectoryType, callback: AsyncCallback&lt;string&gt;):
```
let DIR_CAMERA = mediaLibrary.DirectoryType.DIR_CAMERA;
media.getPublicDirectory(DIR_CAMERA，(err, dicResult) => {
media.getPublicDirectory(DIR_CAMERA, (err, dicResult) => {
if (dicResult == 'camera/') {
console.info('MediaLibraryTest : getPublicDirectory');
console.info('mediaLibraryTest : getPublicDirectory passed');
} else {
console.info('MediaLibraryTest : getPublicDirectory failed');
console.info('mediaLibraryTest : getPublicDirectory failed');
}
});
```
## medialibrary.getPublicDirectory
## mediaLibrary.getPublicDirectory<sup>8+</sup>
getPublicDirectory(type: DirectoryType): Promise&lt;string&gt;;
......@@ -306,7 +307,7 @@ async function (done) {
}
```
## medialibrary.getAlbums
## mediaLibrary.getAlbums<sup>6+</sup>
getAlbums(options: MediaFetchOptions, callback: AsyncCallback<Array&lt;Album&gt;>): void;
......@@ -330,7 +331,7 @@ let AlbumNoArgsfetchOp = {
selections: '',
selectionArgs: [],
};
medialibrary.getAlbums(AlbumNoArgsfetchOp, (err, albumList) => {
mediaLibrary.getAlbums(AlbumNoArgsfetchOp, (err, albumList) => {
if (albumList != undefined) {
const album = albumList[0];
console.info('album.albumName = ' + album.albumName);
......@@ -341,7 +342,7 @@ medialibrary.getAlbums(AlbumNoArgsfetchOp, (err, albumList) => {
})
```
## medialibrary.getAlbums
## mediaLibrary.getAlbums<sup>6+</sup>
getAlbums(options: MediaFetchOptions): Promise<Array&lt;Album&gt;>;
......@@ -370,18 +371,18 @@ let AlbumNoArgsfetchOp = {
selections: '',
selectionArgs: [],
};
medialibrary.getAlbums(AlbumNoArgsfetchOp).then(function(albumList){
mediaLibrary.getAlbums(AlbumNoArgsfetchOp).then(function(albumList){
console.info("getAlbums successfully:"+ JSON.stringify(albumList));
}).catch(function(err){
console.info("getAlbums failed with error:"+ err);
});
```
## medialibrary.release
## mediaLibrary.release<sup>8+</sup>
release(callback: AsyncCallback&lt;void&gt;): void;
释放MediaLibrary实例，当用户确认后续不再使用MediaLibrary实例中的方法后调用release方法释放MediaLibrary实例。
释放mediaLibrary实例，当用户确认后续不再使用mediaLibrary实例中的方法后调用release方法释放mediaLibrary实例。
**需要权限**：无
......@@ -396,17 +397,17 @@ release(callback: AsyncCallback&lt;void&gt;): void;
**示例：**
```
var mediaLibrary = mediaLibrary.getMediaLibrary(context);
mediaLibrary.release((err, data) => {
var media = mediaLibrary.getMediaLibrary(context);
media.release((err, data) => {
// do something
});
```
## medialibrary.release
## mediaLibrary.release<sup>8+</sup>
release(): Promise&lt;void&gt;;
释放MediaLibrary实例，当用户确认后续不再使用MediaLibrary实例中的方法后调用release方法释放MediaLibrary实例。
释放mediaLibrary实例，当用户确认后续不再使用mediaLibrary实例中的方法后调用release方法释放mediaLibrary实例。
**需要权限**：无
......@@ -421,11 +422,11 @@ release(): Promise&lt;void&gt;;
**示例：**
```
var mediaLibrary = mediaLibrary.getMediaLibrary(context);
mediaLibrary.release()
var media = mediaLibrary.getMediaLibrary(context);
media.release()
```
## FileAsset.isDirectory
## FileAsset.isDirectory<sup>8+</sup>
isDirectory(callback: AsyncCallback&lt;boolean&gt;): void;
......@@ -460,7 +461,7 @@ async function (done) {
}
```
## FileAsset.isDirectory
## FileAsset.isDirectory<sup>8+</sup>
isDirectory():Promise&lt;boolean&gt;;
......@@ -497,13 +498,13 @@ async function (done) {
}
```
## FileAsset.commitModify
## FileAsset.commitModify<sup>8+</sup>
commitModify(callback: AsyncCallback&lt;void&gt;): void;
修改文件的元数据，使用callback方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -526,20 +527,20 @@ async function (done) {
};
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.title = ‘newtitle';
asset.title = 'newtitle';
asset.commitModify(() => {
console.info('commitModify success');
}
});
}
```
## FileAsset.commitModify
## FileAsset.commitModify<sup>8+</sup>
commitModify(): Promise&lt;void&gt;;
修改文件的元数据，使用promise方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -562,18 +563,18 @@ async function (done) {
};
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.title = ‘newtitle';
asset.title = 'newtitle';
asset.commitModify();
}
```
## FileAsset.open
## FileAsset.open<sup>8+</sup>
open(mode: string, callback: AsyncCallback&lt;number&gt;): void;
打开当前文件，使用callback方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA（'r'模式打开），ohos.permission.WRITE_MEDIA（‘w’模式打开）
**需要权限**：ohos.permission.READ_MEDIA（'r'模式打开），ohos.permission.WRITE_MEDIA（'w'模式打开）
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -601,13 +602,13 @@ async function (done) {
}
```
## FileAsset.open
## FileAsset.open<sup>8+</sup>
open(mode: string): Promise&lt;number&gt;;
打开当前文件，使用promise方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA（'r'模式打开），ohos.permission.WRITE_MEDIA（‘w’模式打开）
**需要权限**：ohos.permission.READ_MEDIA（'r'模式打开），ohos.permission.WRITE_MEDIA（'w'模式打开）
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -640,13 +641,13 @@ async function (done) {
}
```
## FileAsset.close
## FileAsset.close<sup>8+</sup>
close(fd: number, callback: AsyncCallback&lt;void&gt;): void;
关闭当前文件，使用callback方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -672,8 +673,8 @@ async function (done) {
const asset = await fetchFileResult.getFirstObject();
asset.close(fd, (closeErr) => {
if (closeErr != undefined) {
console.info('MediaLibraryTest : close : FAIL ' + closeErr.message);
console.info('MediaLibraryTest : ASSET_CALLBACK : FAIL');
console.info('mediaLibraryTest : close : FAIL ' + closeErr.message);
console.info('mediaLibraryTest : ASSET_CALLBACK : FAIL');
} else {
console.info("=======asset.close success====>");
}
......@@ -681,13 +682,13 @@ async function (done) {
}
```
## FileAsset.close
## FileAsset.close<sup>8+</sup>
close(fd: number): Promise&lt;void&gt;;
关闭当前文件，使用promise方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -718,8 +719,8 @@ async function (done) {
const asset = await fetchFileResult.getFirstObject();
asset.close(fd).then((closeErr) => {
if (closeErr != undefined) {
console.info('MediaLibraryTest : close : FAIL ' + closeErr.message);
console.info('MediaLibraryTest : ASSET_CALLBACK : FAIL');
console.info('mediaLibraryTest : close : FAIL ' + closeErr.message);
console.info('mediaLibraryTest : ASSET_CALLBACK : FAIL');
} else {
console.info("=======asset.close success====>");
......@@ -728,7 +729,7 @@ async function (done) {
}
```
## FileAsset.getThumbnail
## FileAsset.getThumbnail<sup>8+</sup>
getThumbnail(callback: AsyncCallback&lt;image.PixelMap&gt;): void;
......@@ -758,12 +759,12 @@ async function (done) {
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.getThumbnail((err, pixelmap) => {
console.info('MediaLibraryTest : getThumbnail Successfull '+ pixelmap);
console.info('mediaLibraryTest : getThumbnail Successfull '+ pixelmap);
});
}
```
## FileAsset.getThumbnail
## FileAsset.getThumbnail<sup>8+</sup>
getThumbnail(size: Size, callback: AsyncCallback&lt;image.PixelMap&gt;): void;
......@@ -794,12 +795,12 @@ async function (done) {
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.getThumbnail(size, (err, pixelmap) => {
console.info('MediaLibraryTest : getThumbnail Successfull '+ pixelmap);
console.info('mediaLibraryTest : getThumbnail Successfull '+ pixelmap);
});
}
```
## FileAsset.getThumbnail
## FileAsset.getThumbnail<sup>8+</sup>
getThumbnail(size?: Size): Promise&lt;image.PixelMap&gt;;
......@@ -835,18 +836,18 @@ async function (done) {
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.getThumbnail(size, (err, pixelmap) => {
console.info('MediaLibraryTest : getThumbnail Successfull '+ pixelmap);
console.info('mediaLibraryTest : getThumbnail Successfull '+ pixelmap);
});
}
```
## FileAsset.favorite
## FileAsset.favorite<sup>8+</sup>
favorite(isFavorite: boolean, callback: AsyncCallback&lt;void&gt;): void;
将文件设置为收藏文件，使用callback方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -876,13 +877,13 @@ async function (done) {
}
```
## FileAsset.favorite
## FileAsset.favorite<sup>8+</sup>
favorite(isFavorite: boolean): Promise&lt;void&gt;;
将文件设置为收藏文件，使用promise方式返回异步结果。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -919,7 +920,7 @@ async function (done) {
}
```
## FileAsset.isFavorite
## FileAsset.isFavorite<sup>8+</sup>
isFavorite(callback: AsyncCallback&lt;boolean&gt;): void;
......@@ -958,7 +959,7 @@ async function (done) {
}
```
## FileAsset.isFavorite
## FileAsset.isFavorite<sup>8+</sup>
isFavorite():Promise&lt;boolean&gt;;
......@@ -995,7 +996,7 @@ async function (done) {
}
```
## FileAsset.trash
## FileAsset.trash<sup>8+</sup>
trash(isTrash: boolean, callback: AsyncCallback&lt;void&g;): void;
......@@ -1003,7 +1004,7 @@ trash(isTrash: boolean, callback: AsyncCallback&lt;void&g;): void;
放入垃圾文件夹的文件不会被真正删除，可以通过isTrash = false参数恢复成正常文件。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -1029,12 +1030,12 @@ async function (done) {
const asset = await fetchFileResult.getFirstObject();
asset.trash(true, trashCallBack);
function trashCallBack(err, trash) {
console.info('MediaLibraryTest : ASSET_CALLBACK ASSET_CALLBACK trash');
console.info('mediaLibraryTest : ASSET_CALLBACK ASSET_CALLBACK trash');
}
}
```
## FileAsset.trash
## FileAsset.trash<sup>8+</sup>
trash(isTrash: boolean,): Promise&lt;void&gt;;
......@@ -1042,7 +1043,7 @@ trash(isTrash: boolean,): Promise&lt;void&gt;;
放入垃圾文件夹的文件不会被真正删除，可以通过isTrash = false参数恢复成正常文件。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -1079,7 +1080,7 @@ async function (done) {
}
```
## FileAsset.isTrash
## FileAsset.isTrash<sup>8+</sup>
isTrash(callback: AsyncCallback&lt;boolean&gt;): void;
......@@ -1111,19 +1112,19 @@ async function (done) {
asset.isTrash(isTrashCallBack);
function isTrashCallBack(err, isTrash) {
if (isTrash == true) {
console.info('MediaLibraryTest : ASSET_CALLBACK ASSET_CALLBACK isTrash = ' + isTrash);
console.info('mediaLibraryTest : ASSET_CALLBACK ASSET_CALLBACK isTrash = ' + isTrash);
asset.trash(true, trashCallBack);
} else {
console.info('MediaLibraryTest : ASSET_CALLBACK isTrash Unsuccessfull = ' + err);
console.info('MediaLibraryTest : ASSET_CALLBACK isTrash : FAIL');
console.info('mediaLibraryTest : ASSET_CALLBACK isTrash Unsuccessfull = ' + err);
console.info('mediaLibraryTest : ASSET_CALLBACK isTrash : FAIL');
}
}
}
```
## FileAsset.isTrash
## FileAsset.isTrash<sup>8+</sup>
isTrash():Promise&lt;boolean&gt;;
......@@ -1164,7 +1165,7 @@ async function (done) {
文件检索结果集。
## FetchFileResult.getCount
## FetchFileResult.getCount<sup>8+</sup>
getCount(): number;
......@@ -1195,7 +1196,7 @@ async function (done) {
}
```
## FetchFileResult.isAfterLast
## FetchFileResult.isAfterLast<sup>8+</sup>
isAfterLast(): boolean;
......@@ -1224,15 +1225,15 @@ async function (done) {
};
let fetchFileResult = await media.getFileAssets(getImageOp);
const fetchCount = fetchFileResult.getCount();
console.info('MediaLibraryTest : count:' + fetchCount);
console.info('mediaLibraryTest : count:' + fetchCount);
let fileAsset = await fetchFileResult.getFirstObject();
for (var i = 1; i < fetchCount; i++) {
fileAsset = await fetchFileResult.getNextObject();
if(i == fetchCount - 1) {
console.info('MediaLibraryTest : isLast');
console.info('mediaLibraryTest : isLast');
var result = fetchFileResult.isAfterLast();
console.info('MediaLibraryTest : isAfterLast:' + result);
console.info('MediaLibraryTest : isAfterLast end');
console.info('mediaLibraryTest : isAfterLast:' + result);
console.info('mediaLibraryTest : isAfterLast end');
fetchFileResult.close();
}
......@@ -1240,7 +1241,7 @@ async function (done) {
}
```
## FetchFileResult.close
## FetchFileResult.close<sup>8+</sup>
close(): void;
......@@ -1266,7 +1267,7 @@ async function (done) {
}
```
## FetchFileResult.getFirstObject
## FetchFileResult.getFirstObject<sup>8+</sup>
getFirstObject(callback: AsyncCallback&lt;FileAsset&gt;): void;
......@@ -1304,7 +1305,7 @@ async function (done) {
}
```
## FetchFileResult.getFirstObject
## FetchFileResult.getFirstObject<sup>8+</sup>
getFirstObject(): Promise&lt;FileAsset&gt;;
......@@ -1341,7 +1342,7 @@ async function (done) {
}
```
## FetchFileResult.getNextObject
## FetchFileResult.getNextObject<sup>8+</sup>
getNextObject(callback: AsyncCallback&lt;FileAsset&gt;): void;
......@@ -1379,7 +1380,7 @@ async function (done) {
}
```
## FetchFileResult.getNextObject
## FetchFileResult.getNextObject<sup>8+</sup>
getNextObject(): Promise&lt;FileAsset&gt;;
......@@ -1408,12 +1409,12 @@ async function (done) {
};
let fetchFileResult = await media.getFileAssets(getImageOp);
const fetchCount = fetchFileResult.getCount();
console.info('MediaLibraryTest : count:' + fetchCount);
console.info('mediaLibraryTest : count:' + fetchCount);
fileAsset = await fetchFileResult.getNextObject();
}
```
## FetchFileResult.getLastObject
## FetchFileResult.getLastObject<sup>8+</sup>
getLastObject(callback: AsyncCallback&lt;FileAsset&gt;): void;
......@@ -1451,7 +1452,7 @@ async function (done) {
}
```
## FetchFileResult.getLastObject
## FetchFileResult.getLastObject<sup>8+</sup>
getLastObject(): Promise&lt;FileAsset&gt;;
......@@ -1483,7 +1484,7 @@ async function (done) {
}
```
## FetchFileResult.getPositionObject
## FetchFileResult.getPositionObject<sup>8+</sup>
getPositionObject(index: number, callback: AsyncCallback&lt;FileAsset&gt;): void;
......@@ -1512,7 +1513,7 @@ async function (done) {
extendArgs: "LIMIT 0,10",
};
let fetchFileResult = await media.getFileAssets(getImageOp);
fetchFileResult.getPositionObject(1，(err, value) => {
fetchFileResult.getPositionObject(0, (err, value) => {
if (err) {
console.error('Failed ');
return;
......@@ -1522,7 +1523,7 @@ async function (done) {
}
```
## FetchFileResult.getPositionObject
## FetchFileResult.getPositionObject<sup>8+</sup>
getPositionObject(index: number): Promise&lt;FileAsset&gt;;
......@@ -1556,7 +1557,7 @@ async function (done) {
extendArgs: "LIMIT 0,10",
};
let fetchFileResult = await media.getFileAssets(getImageOp);
fetchFileResult.getPositionObject(1，(err, value) => {
fetchFileResult.getPositionObject(1, (err, value) => {
if (err) {
console.error('Failed ');
return;
......@@ -1566,7 +1567,7 @@ async function (done) {
}
```
## FetchFileResult.getAllObject
## FetchFileResult.getAllObject<sup>8+</sup>
getAllObject(callback: AsyncCallback&lt;Array&lt;FileAsset&gt;&gt;): void;
......@@ -1604,7 +1605,7 @@ async function (done) {
}
```
## FetchFileResult.getAllObject
## FetchFileResult.getAllObject<sup>8+</sup>
getAllObject(): Promise&lt;Array&lt;FileAsset&gt;&gt;;
......@@ -1636,13 +1637,13 @@ async function (done) {
}
```
## Album.commitModify
## Album.commitModify<sup>8+</sup>
commitModify(callback: AsyncCallback&lt;void&gt;): void;
更新相册属性修改到数据库中。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -1673,13 +1674,13 @@ async function (done) {
}
```
## Album.commitModify
## Album.commitModify<sup>8+</sup>
commitModify(): Promise&lt;void&gt;;
更新相册属性修改到数据库中。
**需要权限**：ohos.permission.READ_MEDIA，ohos.permission.WRITE_MEDIA
**需要权限**：ohos.permission.READ_MEDIA, ohos.permission.WRITE_MEDIA
**系统能力**：SystemCapability.Multimedia.MediaLibrary.Core
......@@ -1708,7 +1709,7 @@ async function (done) {
}
```
## Album.getFileAssets
## Album.getFileAssets<sup>8+</sup>
getFileAssets(options: MediaFetchOptions, callback: AsyncCallback&lt;FetchFileResult&gt;): void;
......@@ -1736,14 +1737,13 @@ async function (done) {
const albumList = await media.getAlbums(AlbumNoArgsfetchOp);
const album = albumList[0];
album.getFileAssets(fileNoArgsfetchOp, getFileAssetsCallBack);
})
function getFileAssetsCallBack(err, fetchFileResult) {
// do something
}
}
```
## Album.getFileAssets
## Album.getFileAssets<sup>8+</sup>
getFileAssets(options?: MediaFetchOptions): Promise&lt;FetchFileResult&gt;;
......@@ -1783,7 +1783,7 @@ async function (done) {
}
```
## PeerInfo
## PeerInfo<sup>8+</sup>
注册设备信息。
......@@ -1908,7 +1908,7 @@ DeviceType
| TYPE_CAR | 5 | 车载设备 |
| TYPE_TV | 6 | 电视设备 |
## MediaFetchOptions
## MediaFetchOptions<sup>8+</sup>
检索条件。
......@@ -1921,7 +1921,7 @@ DeviceType
| networkId | string | 是 | 是 | 否 |注册设备网络ID |
| extendArgs | string | 是 | 是 | 否 |扩展的检索参数 |
## Size
## Size<sup>8+</sup>
图片尺寸。
......
Markdown is supported
0% 或 .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑！
想要评论请 注册 或