ant-design/components/slider/demo/icon-slider.md

---
order: 2
title:
  zh-CN: 带 icon 的滑块
  en-US: Slider with icon
---

## zh-CN

滑块左右可以设置图标来表达业务含义。

## en-US

You can add an icon beside the slider to make it meaningful.

```tsx
import React, { useState } from 'react';
import { Slider } from 'antd';
import { FrownOutlined, SmileOutlined } from '@ant-design/icons';

interface IconSliderProps {
  max: number;
  min: number;
}

const IconSlider: React.FC<IconSliderProps> = props => {
  const { max, min } = props;
  const [value, setValue] = useState(0);

  const mid = Number(((max - min) / 2).toFixed(5));
  const preColorCls = value >= mid ? '' : 'icon-wrapper-active';
  const nextColorCls = value >= mid ? 'icon-wrapper-active' : '';

  return (
    <div className="icon-wrapper">
      <FrownOutlined className={preColorCls} />
      <Slider {...props} onChange={setValue} value={value} />
      <SmileOutlined className={nextColorCls} />
    </div>
  );
};

const App: React.FC = () => <IconSlider min={0} max={20} />;

export default App;
```

```css
.icon-wrapper {
  position: relative;
  padding: 0px 30px;
}

.icon-wrapper .anticon {
  position: absolute;
  top: -2px;
  width: 16px;
  height: 16px;
  color: rgba(0, 0, 0, 0.25);
  font-size: 16px;
  line-height: 1;
}

.icon-wrapper .icon-wrapper-active {
  color: rgba(0, 0, 0, 0.45);
}

.icon-wrapper .anticon:first-child {
  left: 0;
}

.icon-wrapper .anticon:last-child {
  right: 0;
}
```

<style>
  [data-theme="dark"] .icon-wrapper .anticon {
    color: rgba(255, 255, 255, 0.25);
  }
  [data-theme="dark"] .icon-wrapper .icon-wrapper-active {
    color: rgba(255, 255, 255, .45);
  }
</style>