# NotifyBackgroundMusic

> 建议使用 [WMPFMusicApi.registerMusicPlayStatusListener](/doc/oplatform/Miniprogram_Frame/api/cli/music/registerMusicPlayStatusListener) 接口.

## 调用参数

| 属性   | 说明                                                |
|--------|-----------------------------------------------------|
| notify | 是否监听背景音频变化，true 为监听，false 为取消监听 |

## 返回参数

| 属性  | 说明                                               |
|-------|----------------------------------------------------|
| state | START:1 RESUME:2 PAUSE:3 STOP:4 COMPLETE:5 ERROR:6 |

## 示例代码

```kotlin
val request = WMPFNotifyBackgroundMusicRequest()
request.baseRequest = WMPFBaseRequestHelper.checked()
request.notify = true
val result = WMPFIPCInvoker.invokeAsync(
    request,
    IPCInvokerTask_NotifyBackgroundMusic::class.java
) { response ->
    /**
     * val START = 1
     * val RESUME = 2
     * val PAUSE = 3
     * val STOP = 4
     * val COMPLETE = 5
     * val ERROR = 6
     **/
    it.onNext(response)
}

if (!result) {
    it.onError(Exception("invoke notifyBackgroundMusic fail"))
}
```