Submission of interface development guidance document of audiostreammanager module

Signed-off-by: Njiao_yanlin <jiaoyanlin@huawei.com>

zh-cn/application-dev/media/Readme-CN.md

@@ -5,6 +5,7 @@
     - [音频播放开发指导](audio-playback.md)
     - [音频录制开发指导](audio-recorder.md)
     - [音频渲染开发指导](audio-renderer.md)
+    - [音频流管理开发指导](audio-stream-manager.md)
     - [音频采集开发指导](audio-capturer.md)
     - [OpenSL ES播放开发指导](opensles-playback.md)
     - [OpenSL ES录音开发指导](opensles-capture.md)

zh-cn/application-dev/media/audio-stream-manager.md

@@ -20,15 +20,15 @@ AudioStreamManager提供了音频流管理的方法。开发者可以通过本
 
    在使用AudioStreamManager的API前，需要使用getStreamManager()创建一个AudioStreamManager实例。
 
-```js
-var audioStreamManager = audio.getStreamManager();
-```
+   ```js
+   var audioStreamManager = audio.getStreamManager();
+   ```
 
 2. （可选）使用on（'audioRendererChange'）监听音频渲染器更改事件。
 如果音频流监听应用需要在音频播放应用状态变化、设备变化、音频属性变化时获取通知，可以订阅该事件。更多事件请参考[API参考文档](../reference/apis/js-apis-audio.md)。
 
-```js
-audioStreamManager.on('audioRendererChange',  (AudioRendererChangeInfoArray) => {
+   ```js
+   audioStreamManager.on('audioRendererChange',  (AudioRendererChangeInfoArray) => {
      for (let i = 0; i < AudioRendererChangeInfoArray.length; i++) {
        AudioRendererChangeInfo = AudioRendererChangeInfoArray[i];
        console.info('## RendererChange on is called for ' + i + ' ##');
@@ -50,21 +50,21 @@ audioStreamManager.on('audioRendererChange',  (AudioRendererChangeInfoArray) =>
          console.info('ChannelMask:' + i + ':' + AudioRendererChangeInfo.deviceDescriptors[j].channelMasks);
        }
      }
-});
-```
+   });
+   ```
 
 3. （可选）使用off（'audioRendererChange'）取消监听音频渲染器更改事件。
 
-```js
-audioStreamManager.off('audioRendererChange');
-console.info('######### RendererChange Off is called #########');
-```   
+   ```js
+   audioStreamManager.off('audioRendererChange');
+   console.info('######### RendererChange Off is called #########');
+   ```   
 
 4. （可选）使用on（'audioCapturerChange'）监听音频捕获器更改事件。
 如果音频流监听应用需要在音频录制应用状态变化、设备变化、音频属性变化时获取通知，可以订阅该事件。更多事件请参考[API参考文档](../reference/apis/js-apis-audio.md)。
 
-```js
-audioStreamManager.on('audioCapturerChange', (AudioCapturerChangeInfoArray) =>  {
+   ```js
+   audioStreamManager.on('audioCapturerChange', (AudioCapturerChangeInfoArray) =>  {
      for (let i = 0; i < AudioCapturerChangeInfoArray.length; i++) {
        console.info(' ## audioCapturerChange on is called for element ' + i + ' ##');
        console.info('StreamId for ' + i + 'is:' + AudioCapturerChangeInfoArray[i].streamId);
@@ -83,21 +83,21 @@ audioStreamManager.on('audioCapturerChange', (AudioCapturerChangeInfoArray) =>
          console.info('ChannelMask:' + i + ':' + AudioCapturerChangeInfoArray[i].deviceDescriptors[j].channelMasks);
        }
      }
-});
-```  
+   });
+   ```  
 
 5. （可选）使用off（'audioCapturerChange'）取消监听音频捕获器更改事件。
 
-```js
-audioStreamManager.off('audioCapturerChange');
-console.info('######### CapturerChange Off is called #########');
-```  
+   ```js
+   audioStreamManager.off('audioCapturerChange');
+   console.info('######### CapturerChange Off is called #########');
+   ```  
 
 6. （可选）使用getCurrentAudioRendererInfoArray()获取当前音频渲染器的信息。
 该接口可获取音频流唯一ID，音频播放客户端的UID，音频状态以及音频播放器的其他信息。需注意的是若对第三方音频流监听应用未配置ohos.permission.USE_BLUETOOTH权限，则查询到的设备名称和设备地址为空字符串，若正确配置权限，则显示的实际的设备名称和设备地址信息。
    
-```js
-await audioStreamManager.getCurrentAudioRendererInfoArray().then( function (AudioRendererChangeInfoArray) {
+   ```js
+   await audioStreamManager.getCurrentAudioRendererInfoArray().then( function (AudioRendererChangeInfoArray) {
      console.info('######### Get Promise is called ##########');
      if (AudioRendererChangeInfoArray != null) {
        for (let i = 0; i < AudioRendererChangeInfoArray.length; i++) {
@@ -121,16 +121,16 @@ await audioStreamManager.getCurrentAudioRendererInfoArray().then( function (Audi
          }
        }
      }
-}).catch((err) => {
+   }).catch((err) => {
      console.log('getCurrentAudioRendererInfoArray :ERROR: ' + err.message);
-});
-``` 
+   });
+   ``` 
 
 7. （可选）使用getCurrentAudioCapturerInfoArray()获取当前音频捕获器的信息。
 该接口可获取音频流唯一ID，音频录制客户端的UID，音频状态以及音频捕获器的其他信息。需注意的是若对第三方音频流监听应用未配置ohos.permission.USE_BLUETOOTH权限，则查询到的设备名称和设备地址为空字符串，若正确配置权限，则显示的实际的设备名称和设备地址信息。
    
-```js
-await audioStreamManager.getCurrentAudioCapturerInfoArray().then( function (AudioCapturerChangeInfoArray) {
+   ```js
+   await audioStreamManager.getCurrentAudioCapturerInfoArray().then( function (AudioCapturerChangeInfoArray) {
      console.info('getCurrentAudioCapturerInfoArray： **** Get Promise Called ****');
      if (AudioCapturerChangeInfoArray != null) {
        for (let i = 0; i < AudioCapturerChangeInfoArray.length; i++) {
@@ -152,7 +152,7 @@ await audioStreamManager.getCurrentAudioCapturerInfoArray().then( function (Audi
          }
        }
      }
-}).catch((err) => {
+   }).catch((err) => {
      console.log('getCurrentAudioCapturerInfoArray :ERROR: ' + err.message);
-});
-```      
+   });
+   ```      
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