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未验证 提交 3be2d32d 编写于 作者: 冯 冯泽悟 提交者： Gitee
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update zh-cn/application-dev/reference/apis/js-apis-image.md. 

Signed-off-by: N冯泽悟 <fengzewu@huawei.com>
上级 89b4e7cd
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Showing with 18 addition and 18 deletion
zh-cn/application-dev/reference/apis/js-apis-image.md
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...@@ -2128,9 +2128,8 @@ queueImage(interface: Image, callback: AsyncCallback\<void>): void ...@@ -2128,9 +2128,8 @@ queueImage(interface: Image, callback: AsyncCallback\<void>): void
```js ```js
creator.dequeueImage().then(img => { creator.dequeueImage().then(img => {
const JPEG = 4;
var component = await img.getComponent(JPEG);
//绘制图片 //绘制图片
img.getComponent(4).then(component => {
var bufferArr = new Uint8Array(component.byteBuffer); var bufferArr = new Uint8Array(component.byteBuffer);
for (var i = 0; i < bufferArr.length; i += 4) { for (var i = 0; i < bufferArr.length; i += 4) {
bufferArr[i] = 0; //B bufferArr[i] = 0; //B
...@@ -2138,6 +2137,7 @@ creator.dequeueImage().then(img => { ...@@ -2138,6 +2137,7 @@ creator.dequeueImage().then(img => {
bufferArr[i + 2] = 255; //R bufferArr[i + 2] = 255; //R
bufferArr[i + 3] = 255; //A bufferArr[i + 3] = 255; //A
} }
})
creator.queueImage(img, (err) => { creator.queueImage(img, (err) => {
if (err) { if (err) {
console.info('queueImage failed: ' + err); console.info('queueImage failed: ' + err);
...@@ -2172,9 +2172,8 @@ queueImage(interface: Image): Promise\<void> ...@@ -2172,9 +2172,8 @@ queueImage(interface: Image): Promise\<void>
```js ```js
creator.dequeueImage().then(img => { creator.dequeueImage().then(img => {
const JPEG = 4;
var component = await img.getComponent(JPEG);
//绘制图片 //绘制图片
img.getComponent(4).then(component => {
var bufferArr = new Uint8Array(component.byteBuffer); var bufferArr = new Uint8Array(component.byteBuffer);
for (var i = 0; i < bufferArr.length; i += 4) { for (var i = 0; i < bufferArr.length; i += 4) {
bufferArr[i] = 0; //B bufferArr[i] = 0; //B
...@@ -2182,6 +2181,7 @@ creator.dequeueImage().then(img => { ...@@ -2182,6 +2181,7 @@ creator.dequeueImage().then(img => {
bufferArr[i + 2] = 255; //R bufferArr[i + 2] = 255; //R
bufferArr[i + 3] = 255; //A bufferArr[i + 3] = 255; //A
} }
})
creator.queueImage(img).then(() => { creator.queueImage(img).then(() => {
console.info('queueImage succeeded.'); console.info('queueImage succeeded.');
}).catch(error => { }).catch(error => {
......
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