提交 e19188a3 编写于 作者: Z zhang-daiyue

Fix demo code errors

Signed-off-by: Nzhang-daiyue <zhangdaiyue1@huawei.com>
Change-Id: Ica03e7cc50f2d7177843c16480e29dcb7cc9552a
上级 a8add1ca
......@@ -94,23 +94,42 @@ getFileAssets(options: MediaFetchOptions, callback: AsyncCallback&lt;FetchFileRe
```js
let fileKeyObj = mediaLibrary.FileKey;
let imageType = mediaLibrary.MediaType.IMAGE;
let imagesfetchOp = {
let imagesFetchOp = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
};
media.getFileAssets(imagesfetchOp, (error, fetchFileResult) => {
if (fetchFileResult != undefined) {
console.info('mediaLibraryTest : ASSET_CALLBACK fetchFileResult success');
for (let i = 0; i < fetchFileResult.getCount(); i++) {
media.getFileAssets(imagesFetchOp, (error, fetchFileResult) => {
if (fetchFileResult == undefined) {
console.error('Failed to get fetchFileResult: ' + error);
return;
}
const count = fetchFileResult.getCount();
if (count < 0) {
console.error('Failed to get count from fetchFileResult: count: ' + count);
return;
}
if (count == 0) {
console.info('The count of fetchFileResult is zero');
return;
}
console.info('Get fetchFileResult success, count: ' + count);
fetchFileResult.getFirstObject((err, fileAsset) => {
if (fileAsset == undefined) {
console.error('Failed to get first object: ' + err);
return;
}
console.log('fileAsset.displayName ' + ': ' + fileAsset.displayName);
for (let i = 1; i < count; i++) {
fetchFileResult.getNextObject((err, fileAsset) => {
if (err) {
console.error('Failed ');
return;
}
console.log('fileAsset.displayName ' + i + ': ' + fileAsset.displayName);
if (fileAsset == undefined) {
console.error('Failed to get next object: ' + err);
return;
}
console.log('fileAsset.displayName ' + i + ': ' + fileAsset.displayName);
})
}
}
}
});
});
```
### getFileAssets<sup>7+</sup>
......@@ -140,14 +159,35 @@ getFileAssets(options: MediaFetchOptions): Promise&lt;FetchFileResult&gt;
```js
let fileKeyObj = mediaLibrary.FileKey;
let imageType = mediaLibrary.MediaType.IMAGE;
let imagesfetchOp = {
let imagesFetchOp = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
};
media.getFileAssets(imagesfetchOp).then(function(fetchFileResult){
console.info("getFileAssets successfully: image number is "+ fetchFileResult.getCount());
media.getFileAssets(imagesFetchOp).then(function(fetchFileResult) {
const count = fetchFileResult.getCount();
if (count < 0) {
console.error('Failed to get count from fetchFileResult: count: ' + count);
return;
}
if (count == 0) {
console.info('The count of fetchFileResult is zero');
return;
}
console.info('Get fetchFileResult success, count: ' + count);
fetchFileResult.getFirstObject().then(function(fileAsset) {
console.log('fileAsset.displayName ' + ': ' + fileAsset.displayName);
for (let i = 1; i < count; i++) {
fetchFileResult.getNextObject().then(function(fileAsset) {
console.log('fileAsset.displayName ' + ': ' + fileAsset.displayName);
}).catch(function(err) {
console.error('Failed to get next object: ' + err);
})
}
}).catch(function(err) {
console.error('Failed to get first object: ' + err);
});
}).catch(function(err){
console.info("getFileAssets failed with error:"+ err);
console.error("Failed to get file assets: " + err);
});
```
......@@ -763,13 +803,11 @@ startMediaSelect(option: MediaSelectOption, callback: AsyncCallback&lt;Array&lt;
**示例:**
```js
let fileKeyObj = mediaLibrary.FileKey;
let imageType = mediaLibrary.MediaType.IMAGE;
let imagesfetchOp = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
let option : mediaLibrary.MediaSelectOption = {
type : "media",
count : 2
};
mediaLibrary.getMediaLibrary().startMediaSelect(imagesfetchOp, (err, value) => {
mediaLibrary.getMediaLibrary().startMediaSelect(option, (err, value) => {
if (err) {
console.log("An error occurred when selecting media resources.");
return;
......@@ -805,13 +843,11 @@ startMediaSelect(option: MediaSelectOption): Promise&lt;Array&lt;string&gt;&gt;
**示例:**
```js
let fileKeyObj = mediaLibrary.FileKey;
let imageType = mediaLibrary.MediaType.IMAGE;
let imagesfetchOp = {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
let option : mediaLibrary.MediaSelectOption = {
type : "media",
count : 2
};
mediaLibrary.getMediaLibrary().startMediaSelect(imagesfetchOp).then((value) => {
mediaLibrary.getMediaLibrary().startMediaSelect(option).then((value) => {
console.log("Media resources selected.");
// Obtain the media selection value.
}).catch((err) => {
......@@ -1724,18 +1760,13 @@ async function example() {
};
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.isTrash(isTrashCallBack);
function isTrashCallBack(err, isTrash) {
if (isTrash == true) {
console.info('mediaLibraryTest : ASSET_CALLBACK ASSET_CALLBACK isTrash = ' + isTrash);
asset.trash(true, isTrashCallBack);
} else {
console.info('mediaLibraryTest : ASSET_CALLBACK isTrash Unsuccessfull = ' + err);
console.info('mediaLibraryTest : ASSET_CALLBACK isTrash : FAIL');
}
}
asset.isTrash((err, isTrash) => {
if (isTrash == undefined) {
console.error('Failed to get trash state: ' + err);
return;
}
console.info('Get trash state success: ' + isTrash);
});
}
```
......@@ -1765,14 +1796,13 @@ async function example() {
selections: fileKeyObj.MEDIA_TYPE + '= ?',
selectionArgs: [imageType.toString()],
order: fileKeyObj.DATE_ADDED + " DESC",
extendArgs: "",
};
const fetchFileResult = await media.getFileAssets(getImageOp);
const asset = await fetchFileResult.getFirstObject();
asset.isTrash().then(function(isTrash){
console.info("isTrash result:"+ isTrash);
console.info("isTrash result: " + isTrash);
}).catch(function(err){
console.info("isTrash failed with error:"+ err);
console.error("isTrash failed with error: " + err);
});
}
```
......@@ -2557,4 +2587,3 @@ 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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