使用Modal.alert()时，message参数传一个长列表需要滚动的组件，滚动失效

[huangming1994]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

2.1.8

Environment

ios

Reproduction link

https://github.com/ant-design/ant-design-mobile/blob/master/components/modal/alert.tsx

Steps to reproduce

1. 使用Modal.alert()时，message参数传一个长列表需要滚动的组件
2. 无法触发滚动

What is expected?

可以滚动

What is actually happening?

无法滚动

[ant-design-bot]

Translation of this issue:

---

When using Modal.alert(), the message parameter passes a long list of components that need to be scrolled

• [] I have searched the issues of this repository and believe that this is not a duplicate.

Version

2.1.8

Environment

Ios

Reproduction link

[https://github.com/ant-design/ant-design-mobile/blob/master/components/modal/alert.tsx] (https://github.com/ant-design/ant-design-mobile/ Blob/master/components/modal/alert.tsx)

Steps to reproduce

1. When using Modal.alert(), the message parameter passes a long list of components that need to be scrolled
2. Cannot trigger scrolling

What is expected?

Can scroll

What is actually happening?

Can't scroll

[huangming1994]

看了下，是modal.alert里阻止了touchmove，不过不是很明白下面这两段代码。

1. touchmove触发的时候，modal.alert的结构target是am-modal-wrap，父级找上去永远匹配不到am-modal-footer，导致ios下都被preventDefault。

2. 还有不是很明白为什么ios下找不到am-modal-footer的话，要阻止掉touchmove。

[huangming1994]

暂时用npm scoped package替换antd-mobile，添加alias: { 'antd-mobile': '@username/antd-mobile' }。 babelrc中的按需加载libraryName字段无须修改。

[warmhug]

Close for #2486