> For the complete documentation index, see [llms.txt](https://polyv.gitbook.io/document/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://polyv.gitbook.io/document/docs/live/android/71-he-xin-common-gai-shu.md).

# 7\_1-核心common-概述

保利威多场景的核心common模块，即`polyvLiveCommonModul`模块，是给多个场景共用的通用封装模块，上层例如云课堂场景`polyvLiveCloudClassScene`，直播带货场景`polyvLiveEcommerceScene`都依赖该模块进行开发。

其目录结构如下：

```
.
└── livecommon
	├── module
		├── config
		├── data
		├── modules
		├── utils
    ├── ui
    	├── widget
    	├── window
```

1. config

   定义了数据配置类
2. data

   定义了公用数据封装类
3. modules

   定义的是多个功能模块的UI无关的公用代码封装，使用mvp模式（除了互动应用之外）。
4. utils

   定义了工具类。包括图片加载，屏幕旋转等。
5. widget\&window

   定义了多场景通用的自定义UI。


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