Drawer抽屉嵌套组件（内含抽屉）多重打开第一层会遮挡最后打开的抽屉弹层

[232650413]

Reproduction link

https://stackblitz.com/edit/angular-giqmv2?file=src/app/child/child.html

Steps to reproduce

当前模块组件中打开抽屉（Drawer），其内容调用另一个模块组件，此模块组件也含有抽屉Drawer，打开这个抽屉会被第一次打开的抽屉所遮挡。需要在“第一模块”中设置抽屉nzZIndex ，如：999，方可。

What is expected?

默认无需设置nzZIndex。

What is actually happening?

当前层级问题，只能设置nzZIndex处理。

Environment	Info
ng-zorro-antd	11.1.0
Browser	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

---

原9.3版本是不用设置（升级后出现这个问题）。

[zorro-bot]

Translation of this issue:

Drawer Drawers Nested Components (including drawers) Multiple open first floors cover the last open drawer structure

reproduction link

[https://stackblitz.com/edit/angular-giqmv2?file=src/app/child/child.html](https://stackblitz.com/edit/angular-giqmv2?file=src/app/child/ Child.html)

steps to reproduce

Drawer (DRAWER) is opened in the current module component, and its content calls another module component, which also contains a drawer Drawer, which opens the drawer to be blocked by the first open drawer. The drawer Nzzindex needs to be set in the "First Module", such as: 999.

What is expected?

No need to set NZZIndex by default.

What is actually happens?

The current hierarchy problem can only be set to NZZIndex processing.

ENVIRONMENT	INFO
Ng-Zorro-ANTD	11.1.0
Browser	Mozilla / 5.0 (Windows NT 10.0; Win64; x64) AppleWebkit / 537.36 (KHTML, LIKE Gecko) Chrome / 87.0.4280.88 Safari / 537.36

---

The original version 9.3 is not set (this problem after the upgrade).

[chongqiangchen]

此BUG我理解应该是因为使用<ng-container *nzDrawerContent></ng-container>插入内容的方案造成的问题，如果直接使用<ng-content></ng-content>方案不会出现层级问题。

有个额外的问题：6085 中提到：

Usage <ng-content></ng-content> is deprecated, use <ng-template nzDrawerContent></ng-template> to declare the contents of the drawer.

为何这么说?

[232650413]

11.2版本还没修复...多drawer需定义层级。

[232650413]

@hsuanxyz

[232650413]

还有，若路由变更，跳转别的页面，上个页面的抽屉无法自动关闭，再点击也无法关闭。
下拉select菜单的悬浮菜单之类也一样，不太好demo，不知道大家又遇到没？咋处理的

[xiejay97]

还有，若路由变更，跳转别的页面，上个页面的抽屉无法自动关闭，再点击也无法关闭。
下拉select菜单的悬浮菜单之类也一样，不太好demo，不知道大家又遇到没？咋处理的

可以试试创建一个服务存储抽屉这种组件的实例，监听相应路由事件调用实例的close方法

[232650413]

抽屉

那样貌似麻烦了