cjd-parkball/src/components/drawer/demo/multi-level-drawer.md

> 中后台业务组件库，中后台就像公园，进入需要买门票（登录），所以以 Parkball(公园球) 命名，公园内必定捕获！作为一个组件库，提供使用方法文档，方便开发者的调用

---
category: 2
title: 多层抽屉
title_en: Multi-level drawer
---

 zh-CN

在抽屉内打开新的抽屉，用以解决多分支任务的复杂状况。

 en-US

Open a new drawer on top of an existing drawer to handle multi branch tasks

```jsx
import { Drawer, Button } from 'parkball';

class App extends React.Component {
  state = { visible: false, childrenDrawer: false };

  showDrawer = () => {
    this.setState({
      visible: true,
    });
  };

  onClose = () => {
    this.setState({
      visible: false,
    });
  };

  showChildrenDrawer = () => {
    this.setState({
      childrenDrawer: true,
    });
  };

  onChildrenDrawerClose = () => {
    this.setState({
      childrenDrawer: false,
    });
  };

  render() {
    return (
      <div>
        <Button type="primary" onClick={this.showDrawer}>
          Open drawer
        </Button>
        <Drawer
          title="Multi-level drawer"
          width={520}
          closable={false}
          onClose={this.onClose}
          visible={this.state.visible}
        >
          <Button type="primary" onClick={this.showChildrenDrawer}>
            Two-level drawer
          </Button>
          <Drawer
            title="Two-level Drawer"
            width={320}
            closable={false}
            onClose={this.onChildrenDrawerClose}
            visible={this.state.childrenDrawer}
          >
            This is two-level drawer
          </Drawer>
          <div
            style={{
              position: 'absolute',
              bottom: 0,
              width: '100%',
              borderTop: '1px solid #e8e8e8',
              padding: '10px 16px',
              textAlign: 'right',
              left: 0,
              background: '#fff',
              borderRadius: '0 0 4px 4px',
            }}
          >
            <Button
              style={{
                marginRight: 8,
              }}
              onClick={this.onClose}
            >
              Cancel
            </Button>
            <Button onClick={this.onClose} type="primary">
              Submit
            </Button>
          </div>
        </Drawer>
      </div>
    );
  }
}

ReactDOM.render(<App />, mountNode);
```