> For the complete documentation index, see [llms.txt](https://gamebox.gitbook.io/project/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gamebox.gitbook.io/project/you-xi-jie-ru-wen-dang/ji-shu-dui-jie/ji-chu-neng-li/fen-bao-jia-zai.md).

# 分包加载

## 触发分包加载

```javascript
    LoadSubpackageTask loadSubpackage(Object object)
```

*参数*

* Object object: 分包加载参数和回调函数

*Object 参数*

| 属性       | 键值类型     | 是否必填 | 说明                               |
| -------- | -------- | ---- | -------------------------------- |
| name     | string   | 是    | <p>分包的名字或入口，<br>需要和分包配置中的值对应</p> |
| success  | function | 否    | 接口调用成功的回调函数                      |
| fail     | function | 否    | 接口调用失败的回调函数                      |
| complete | function | 否    | 接口调用结束的回调函数                      |

*返回值*

* LoadSubpackageTask: 加载分包任务实例，用于获取分包加载状态

## 加载分包任务实例

```javascript
    LoadSubpackageTask
```

用于获取分包加载状态

*方法*

* onProgressUpdate: 监听分包加载进度变化事件

## 监听分包加载进度变化事件

```javascript
    LoadSubpackageTask.onProgressUpdate(function callback)
```

*参数*

* callback: 监听事件的回调函数

*callback 回调函数参数*

| 属性                        | 键值类型   | 说明                    |
| ------------------------- | ------ | --------------------- |
| progress                  | number | 分包下载进度百分比             |
| totalBytesWritten         | number | 已经下载的数据长度，单位 Bytes    |
| totalBytesExpectedToWrite | number | 预期需要下载的数据总长度，单位 Bytes |


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