ant-design/components/badge/demo/change.md

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# 动态
- order: 4
展示动态变化的效果。
---
````jsx
import { Badge, Button, Icon } from 'antd';
const ButtonGroup = Button.Group;
const Test = React.createClass({
getInitialState() {
return {
count: 5,
show: true,
};
},
increase() {
const count = this.state.count + 1;
this.setState({ count });
},
decline() {
let count = this.state.count - 1;
if (count < 0) {
count = 0;
}
this.setState({ count });
},
onClick() {
this.setState({
show: !this.state.show
});
},
onNumberClick() {
const count = this.state.count;
this.setState({
count: count ? 0 : 5
});
},
render() {
return (
<div>
<Badge count={this.state.count}>
<a href="#" className="head-example"></a>
</Badge>
<Badge dot={this.state.show}>
<a href="#" className="head-example"></a>
</Badge>
<div style={{ marginTop: 10 }}>
<Button type="ghost" onClick={this.onNumberClick} style={{ marginRight: 6 }}>
切换数字显隐
</Button>
<Button type="ghost" onClick={this.onClick} style={{ marginRight: 6 }}>
切换红点显隐
</Button>
<ButtonGroup>
<Button type="ghost" onClick={this.decline}>
<Icon type="minus" />
</Button>
<Button type="ghost" onClick={this.increase}>
<Icon type="plus" />
</Button>
</ButtonGroup>
</div>
</div>
);
}
});
ReactDOM.render(
<Test />
, mountNode);
````