Radio单选框
单选框。
何时使用#
用于在多个备选项中选中单个状态。
和 Select 的区别是,Radio 所有选项默认可见,方便用户在比较中选择,因此选项不宜过多。
代码演示
import { Radio } from 'antd';
ReactDOM.render(<Radio>Radio</Radio>, mountNode);
import { Radio } from 'antd';
const RadioGroup = Radio.Group;
class App extends React.Component {
state = {
value: 1,
}
onChange = (e) => {
console.log('radio checked', e.target.value);
this.setState({
value: e.target.value,
});
}
render() {
return (
<RadioGroup onChange={this.onChange} value={this.state.value}>
<Radio value={1}>A</Radio>
<Radio value={2}>B</Radio>
<Radio value={3}>C</Radio>
<Radio value={4}>D</Radio>
</RadioGroup>
);
}
}
ReactDOM.render(<App />, mountNode);
import { Radio } from 'antd';
const RadioGroup = Radio.Group;
const plainOptions = ['Apple', 'Pear', 'Orange'];
const options = [
{ label: 'Apple', value: 'Apple' },
{ label: 'Pear', value: 'Pear' },
{ label: 'Orange', value: 'Orange' },
];
const optionsWithDisabled = [
{ label: 'Apple', value: 'Apple' },
{ label: 'Pear', value: 'Pear' },
{ label: 'Orange', value: 'Orange', disabled: false },
];
class App extends React.Component {
state = {
value1: 'Apple',
value2: 'Apple',
value3: 'Apple',
}
onChange1 = (e) => {
console.log('radio1 checked', e.target.value);
this.setState({
value1: e.target.value,
});
}
onChange2 = (e) => {
console.log('radio2 checked', e.target.value);
this.setState({
value2: e.target.value,
});
}
onChange3 = (e) => {
console.log('radio3 checked', e.target.value);
this.setState({
value3: e.target.value,
});
}
render() {
return (
<div>
<RadioGroup options={plainOptions} onChange={this.onChange1} value={this.state.value1} />
<RadioGroup options={options} onChange={this.onChange2} value={this.state.value2} />
<RadioGroup options={optionsWithDisabled} onChange={this.onChange3} value={this.state.value3} />
</div>
);
}
}
ReactDOM.render(<App />, mountNode);
import { Radio } from 'antd';
const RadioGroup = Radio.Group;
function App() {
return (
<RadioGroup name="radiogroup" defaultValue={1}>
<Radio value={1}>A</Radio>
<Radio value={2}>B</Radio>
<Radio value={3}>C</Radio>
<Radio value={4}>D</Radio>
</RadioGroup>
);
}
ReactDOM.render(<App />, mountNode);
import { Radio, Button } from 'antd';
class App extends React.Component {
state = {
disabled: true,
}
toggleDisabled = () => {
this.setState({
disabled: !this.state.disabled,
});
}
render() {
return (
<div>
<Radio defaultChecked={false} disabled={this.state.disabled}>Disabled</Radio>
<br />
<Radio defaultChecked disabled={this.state.disabled}>Disabled</Radio>
<div style={{ marginTop: 20 }}>
<Button type="primary" onClick={this.toggleDisabled}>
Toggle disabled
</Button>
</div>
</div>
);
}
}
ReactDOM.render(<App />, mountNode);
import { Radio, Input } from 'antd';
const RadioGroup = Radio.Group;
class App extends React.Component {
state = {
value: 1,
}
onChange = (e) => {
console.log('radio checked', e.target.value);
this.setState({
value: e.target.value,
});
}
render() {
const radioStyle = {
display: 'block',
height: '30px',
lineHeight: '30px',
};
return (
<RadioGroup onChange={this.onChange} value={this.state.value}>
<Radio style={radioStyle} value={1}>Option A</Radio>
<Radio style={radioStyle} value={2}>Option B</Radio>
<Radio style={radioStyle} value={3}>Option C</Radio>
<Radio style={radioStyle} value={4}>
More...
{this.state.value === 4 ? <Input style={{ width: 100, marginLeft: 10 }} /> : null}
</Radio>
</RadioGroup>
);
}
}
ReactDOM.render(<App />, mountNode);
import { Radio } from 'antd';
const RadioButton = Radio.Button;
const RadioGroup = Radio.Group;
function onChange(e) {
console.log(`radio checked:${e.target.value}`);
}
ReactDOM.render(
<div>
<div>
<RadioGroup onChange={onChange} defaultValue="a">
<RadioButton value="a">Hangzhou</RadioButton>
<RadioButton value="b">Shanghai</RadioButton>
<RadioButton value="c">Beijing</RadioButton>
<RadioButton value="d">Chengdu</RadioButton>
</RadioGroup>
</div>
<div style={{ marginTop: 16 }}>
<RadioGroup onChange={onChange} defaultValue="a">
<RadioButton value="a">Hangzhou</RadioButton>
<RadioButton value="b" disabled>Shanghai</RadioButton>
<RadioButton value="c">Beijing</RadioButton>
<RadioButton value="d">Chengdu</RadioButton>
</RadioGroup>
</div>
<div style={{ marginTop: 16 }}>
<RadioGroup disabled onChange={onChange} defaultValue="a">
<RadioButton value="a">Hangzhou</RadioButton>
<RadioButton value="b">Shanghai</RadioButton>
<RadioButton value="c">Beijing</RadioButton>
<RadioButton value="d">Chengdu</RadioButton>
</RadioGroup>
</div>
</div>
, mountNode);
import { Radio } from 'antd';
const RadioButton = Radio.Button;
const RadioGroup = Radio.Group;
ReactDOM.render(
<div>
<div>
<RadioGroup defaultValue="a" size="large">
<RadioButton value="a">Hangzhou</RadioButton>
<RadioButton value="b">Shanghai</RadioButton>
<RadioButton value="c">Beijing</RadioButton>
<RadioButton value="d">Chengdu</RadioButton>
</RadioGroup>
</div>
<div style={{ marginTop: 16 }}>
<RadioGroup defaultValue="a">
<RadioButton value="a">Hangzhou</RadioButton>
<RadioButton value="b">Shanghai</RadioButton>
<RadioButton value="c">Beijing</RadioButton>
<RadioButton value="d">Chengdu</RadioButton>
</RadioGroup>
</div>
<div style={{ marginTop: 16 }}>
<RadioGroup defaultValue="a" size="small">
<RadioButton value="a">Hangzhou</RadioButton>
<RadioButton value="b">Shanghai</RadioButton>
<RadioButton value="c">Beijing</RadioButton>
<RadioButton value="d">Chengdu</RadioButton>
</RadioGroup>
</div>
</div>
, mountNode);
API#
Radio#
参数 | 说明 | 类型 | 可选值 | 默认值 |
---|---|---|---|---|
checked | 指定当前是否选中 | boolean | false | |
defaultChecked | 初始是否选中 | boolean | false | |
value | 根据 value 进行比较,判断是否选中 | any | 无 |
RadioGroup#
单选框组合,用于包裹一组 Radio
。
参数 | 说明 | 类型 | 可选值 | 默认值 |
---|---|---|---|---|
defaultValue | 默认选中的值 | any | 无 | 无 |
name | RadioGroup 下所有 input[type="radio"] 的 name 属性 | string | 无 | |
options | 以配置形式设置子元素 | string[] | Array<{ label: string value: string disabled?: boolean }> | 无 | 无 |
size | 大小,只对按钮样式生效 | string | large default small | default |
value | 用于设置当前选中的值 | any | 无 | 无 |
onChange | 选项变化时的回调函数 | Function(e:Event) | 无 | 无 |