未验证 提交 7776272b 编写于 作者: 刘关鹏 提交者: Gitee

update zh-cn/application-dev/reference/apis/js-apis-image.md.

Signed-off-by: N刘关鹏 <liuguanpeng1@huawei.com>
上级 97280e14
...@@ -36,6 +36,7 @@ createPixelMap(colors: ArrayBuffer, options: InitializationOptions): Promise\<Pi ...@@ -36,6 +36,7 @@ createPixelMap(colors: ArrayBuffer, options: InitializationOptions): Promise\<Pi
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4 const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4
let bufferArr : Uint8Array = new Uint8Array(color); let bufferArr : Uint8Array = new Uint8Array(color);
let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } } let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
...@@ -112,6 +113,7 @@ readPixelsToBuffer(dst: ArrayBuffer): Promise\<void> ...@@ -112,6 +113,7 @@ readPixelsToBuffer(dst: ArrayBuffer): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const readBuffer : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4 const readBuffer : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4
pixelmap.readPixelsToBuffer(readBuffer).then(() => { pixelmap.readPixelsToBuffer(readBuffer).then(() => {
console.log('Succeeded in reading image pixel data.'); //符合条件则进入 console.log('Succeeded in reading image pixel data.'); //符合条件则进入
...@@ -171,6 +173,7 @@ readPixels(area: PositionArea): Promise\<void> ...@@ -171,6 +173,7 @@ readPixels(area: PositionArea): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const area : image.PositionArea = { const area : image.PositionArea = {
pixels: new ArrayBuffer(8), pixels: new ArrayBuffer(8),
offset: 0, offset: 0,
...@@ -243,6 +246,7 @@ writePixels(area: PositionArea): Promise\<void> ...@@ -243,6 +246,7 @@ writePixels(area: PositionArea): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4 const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4
let bufferArr : Uint8Array = new Uint8Array(color); let bufferArr : Uint8Array = new Uint8Array(color);
let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } } let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
...@@ -328,6 +332,7 @@ writeBufferToPixels(src: ArrayBuffer): Promise\<void> ...@@ -328,6 +332,7 @@ writeBufferToPixels(src: ArrayBuffer): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4 const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4
let bufferArr : Uint8Array = new Uint8Array(color); let bufferArr : Uint8Array = new Uint8Array(color);
for (var i = 0; i < bufferArr.length; i++) { for (var i = 0; i < bufferArr.length; i++) {
...@@ -1074,6 +1079,7 @@ release():Promise\<void> ...@@ -1074,6 +1079,7 @@ release():Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
pixelmap.release().then(() => { pixelmap.release().then(() => {
console.log('Succeeded in releasing pixelmap object.'); console.log('Succeeded in releasing pixelmap object.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -1411,6 +1417,7 @@ getImageInfo(index?: number): Promise\<ImageInfo> ...@@ -1411,6 +1417,7 @@ getImageInfo(index?: number): Promise\<ImageInfo>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
imageSourceApi.getImageInfo(0) imageSourceApi.getImageInfo(0)
.then((imageInfo : image.ImageInfo) => { .then((imageInfo : image.ImageInfo) => {
console.log('Succeeded in obtaining the image information.'); console.log('Succeeded in obtaining the image information.');
...@@ -1642,6 +1649,7 @@ createPixelMap(options?: DecodingOptions): Promise\<PixelMap> ...@@ -1642,6 +1649,7 @@ createPixelMap(options?: DecodingOptions): Promise\<PixelMap>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
imageSourceApi.createPixelMap().then((pixelmap : image.PixelMap) => { imageSourceApi.createPixelMap().then((pixelmap : image.PixelMap) => {
console.log('Succeeded in creating pixelmap object through image decoding parameters.'); console.log('Succeeded in creating pixelmap object through image decoding parameters.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2005,6 +2013,7 @@ release(): Promise\<void> ...@@ -2005,6 +2013,7 @@ release(): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
imageSourceApi.release().then(()=>{ imageSourceApi.release().then(()=>{
console.log('Succeeded in releasing the image source instance.'); console.log('Succeeded in releasing the image source instance.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2092,6 +2101,7 @@ packing(source: ImageSource, option: PackingOption): Promise\<ArrayBuffer> ...@@ -2092,6 +2101,7 @@ packing(source: ImageSource, option: PackingOption): Promise\<ArrayBuffer>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const imageSourceApi : image.ImageSource = image.createImageSource(0); const imageSourceApi : image.ImageSource = image.createImageSource(0);
let packOpts : image.PackingOption = { format:"image/jpeg", quality:98 } let packOpts : image.PackingOption = { format:"image/jpeg", quality:98 }
imagePackerApi.packing(imageSourceApi, packOpts) imagePackerApi.packing(imageSourceApi, packOpts)
...@@ -2156,6 +2166,7 @@ packing(source: PixelMap, option: PackingOption): Promise\<ArrayBuffer> ...@@ -2156,6 +2166,7 @@ packing(source: PixelMap, option: PackingOption): Promise\<ArrayBuffer>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4 const color : ArrayBuffer = new ArrayBuffer(96); //96为需要创建的像素buffer大小,取值为:height * width *4
let bufferArr : Uint8Array = new Uint8Array(color); let bufferArr : Uint8Array = new Uint8Array(color);
let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } } let opts : image.InitializationOptions = { editable: true, pixelFormat: 3, size: { height: 4, width: 6 } }
...@@ -2209,6 +2220,7 @@ release(): Promise\<void> ...@@ -2209,6 +2220,7 @@ release(): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
imagePackerApi.release().then(()=>{ imagePackerApi.release().then(()=>{
console.log('Succeeded in releasing image packaging.'); console.log('Succeeded in releasing image packaging.');
}).catch((error : BusinessError)=>{ }).catch((error : BusinessError)=>{
...@@ -2304,6 +2316,7 @@ getReceivingSurfaceId(): Promise\<string> ...@@ -2304,6 +2316,7 @@ getReceivingSurfaceId(): Promise\<string>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
receiver.getReceivingSurfaceId().then( (id : string) => { receiver.getReceivingSurfaceId().then( (id : string) => {
console.log('getReceivingSurfaceId succeeded.'); console.log('getReceivingSurfaceId succeeded.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2354,6 +2367,7 @@ readLatestImage(): Promise\<Image> ...@@ -2354,6 +2367,7 @@ readLatestImage(): Promise\<Image>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
receiver.readLatestImage().then((img : image.Image) => { receiver.readLatestImage().then((img : image.Image) => {
console.log('readLatestImage succeeded.'); console.log('readLatestImage succeeded.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2404,6 +2418,7 @@ readNextImage(): Promise\<Image> ...@@ -2404,6 +2418,7 @@ readNextImage(): Promise\<Image>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
receiver.readNextImage().then((img : image.Image) => { receiver.readNextImage().then((img : image.Image) => {
console.log('readNextImage succeeded.'); console.log('readNextImage succeeded.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2469,6 +2484,7 @@ release(): Promise\<void> ...@@ -2469,6 +2484,7 @@ release(): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
receiver.release().then(() => { receiver.release().then(() => {
console.log('release succeeded.'); console.log('release succeeded.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2561,6 +2577,7 @@ dequeueImage(): Promise\<Image> ...@@ -2561,6 +2577,7 @@ dequeueImage(): Promise\<Image>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
creator.dequeueImage().then((img : image.Image) => { creator.dequeueImage().then((img : image.Image) => {
console.info('dequeueImage succeeded.'); console.info('dequeueImage succeeded.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2630,6 +2647,7 @@ queueImage(interface: Image): Promise\<void> ...@@ -2630,6 +2647,7 @@ queueImage(interface: Image): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
creator.dequeueImage().then((img : image.Image) => { creator.dequeueImage().then((img : image.Image) => {
//绘制图片 //绘制图片
img.getComponent(4).then(component : image.Component => { img.getComponent(4).then(component : image.Component => {
...@@ -2717,6 +2735,7 @@ release(): Promise\<void> ...@@ -2717,6 +2735,7 @@ release(): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
creator.release().then(() => { creator.release().then(() => {
console.info('release succeeded'); console.info('release succeeded');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
...@@ -2834,6 +2853,7 @@ release(): Promise\<void> ...@@ -2834,6 +2853,7 @@ release(): Promise\<void>
**示例:** **示例:**
```js ```js
import {BusinessError} from '@ohos.base'
img.release().then(() =>{ img.release().then(() =>{
console.log('release succeeded.'); console.log('release succeeded.');
}).catch((error : BusinessError) => { }).catch((error : BusinessError) => {
......
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