ant-design/components/slider/demo/icon-slider.md
2020-02-19 13:20:43 +08:00

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---
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.
```jsx
import { Slider } from 'antd';
import { FrownOutlined, SmileOutlined } from '@ant-design/icons';
class IconSlider extends React.Component {
state = {
value: 0,
};
handleChange = value => {
this.setState({ value });
};
render() {
const { max, min } = this.props;
const { value } = this.state;
const mid = ((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 {...this.props} onChange={this.handleChange} value={value} />
<SmileOutlined className={nextColorCls} />
</div>
);
}
}
ReactDOM.render(<IconSlider min={0} max={20} />, mountNode);
```
```css
.icon-wrapper {
position: relative;
padding: 0px 30px;
}
.icon-wrapper .anticon {
position: absolute;
top: -2px;
width: 16px;
height: 16px;
line-height: 1;
font-size: 16px;
color: rgba(0, 0, 0, 0.25);
}
.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>