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

基本

最简单的用法。

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import { Radio } from 'infrad';
import React from 'react';

const App: React.FC = () => <Radio>Radio</Radio>;

export default App;
单选组合

一组互斥的 Radio 配合使用。

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import type { RadioChangeEvent } from 'infrad';
import { Radio } from 'infrad';
import React, { useState } from 'react';

const App: React.FC = () => {
  const [value, setValue] = useState(1);

  const onChange = (e: RadioChangeEvent) => {
    console.log('radio checked', e.target.value);
    setValue(e.target.value);
  };

  return (
    <Radio.Group onChange={onChange} value={value}>
      <Radio value={1}>A</Radio>
      <Radio value={2}>B</Radio>
      <Radio value={3}>C</Radio>
      <Radio value={4}>D</Radio>
    </Radio.Group>
  );
};

export default App;





Radio.Group 组合 - 配置方式

通过配置 options 参数来渲染单选框。也可通过 optionType 参数来设置 Radio 类型。

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import type { RadioChangeEvent } from 'infrad';
import { Radio } from 'infrad';
import React, { useState } from 'react';

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: true },
];

const App: React.FC = () => {
  const [value1, setValue1] = useState('Apple');
  const [value2, setValue2] = useState('Apple');
  const [value3, setValue3] = useState('Apple');
  const [value4, setValue4] = useState('Apple');

  const onChange1 = ({ target: { value } }: RadioChangeEvent) => {
    console.log('radio1 checked', value);
    setValue1(value);
  };

  const onChange2 = ({ target: { value } }: RadioChangeEvent) => {
    console.log('radio2 checked', value);
    setValue2(value);
  };

  const onChange3 = ({ target: { value } }: RadioChangeEvent) => {
    console.log('radio3 checked', value);
    setValue3(value);
  };

  const onChange4 = ({ target: { value } }: RadioChangeEvent) => {
    console.log('radio4 checked', value);
    setValue4(value);
  };

  return (
    <>
      <Radio.Group options={plainOptions} onChange={onChange1} value={value1} />
      <br />
      <Radio.Group options={optionsWithDisabled} onChange={onChange2} value={value2} />
      <br />
      <br />
      <Radio.Group options={options} onChange={onChange3} value={value3} optionType="button" />
      <br />
      <br />
      <Radio.Group
        options={optionsWithDisabled}
        onChange={onChange4}
        value={value4}
        optionType="button"
        buttonStyle="solid"
      />
    </>
  );
};

export default App;
单选组合 - 配合 name 使用

可以为 Radio.Group 配置 name 参数，为组合内的 input 元素赋予相同的 name 属性，使浏览器把 Radio.Group 下的 Radio 真正看作是一组（例如可以通过方向键始终在同一组内更改选项）。

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import { Radio } from 'infrad';
import React from 'react';

const App: React.FC = () => (
  <Radio.Group name="radiogroup" defaultValue={1}>
    <Radio value={1}>A</Radio>
    <Radio value={2}>B</Radio>
    <Radio value={3}>C</Radio>
    <Radio value={4}>D</Radio>
  </Radio.Group>
);

export default App;
填底的按钮样式

实色填底的单选按钮样式。

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import { Radio } from 'infrad';
import React from 'react';

const App: React.FC = () => (
  <>
    <Radio.Group defaultValue="a" buttonStyle="solid">
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b">Shanghai</Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
    <Radio.Group defaultValue="c" buttonStyle="solid" style={{ marginTop: 16 }}>
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b" disabled>
        Shanghai
      </Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
  </>
);

export default App;

不可用

Radio 不可用。

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import { Button, Radio } from 'infrad';
import React, { useState } from 'react';

const App: React.FC = () => {
  const [disabled, setDisabled] = useState(true);

  const toggleDisabled = () => {
    setDisabled(!disabled);
  };

  return (
    <>
      <Radio defaultChecked={false} disabled={disabled}>
        Disabled
      </Radio>
      <Radio defaultChecked disabled={disabled}>
        Disabled
      </Radio>
      <br />
      <Button type="primary" onClick={toggleDisabled} style={{ marginTop: 16 }}>
        Toggle disabled
      </Button>
    </>
  );
};

export default App;
Radio.Group 垂直

垂直的 Radio.Group，配合更多输入框选项。

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import type { RadioChangeEvent } from 'infrad';
import { Input, Radio, Space } from 'infrad';
import React, { useState } from 'react';

const App: React.FC = () => {
  const [value, setValue] = useState(1);

  const onChange = (e: RadioChangeEvent) => {
    console.log('radio checked', e.target.value);
    setValue(e.target.value);
  };

  return (
    <Radio.Group onChange={onChange} value={value}>
      <Space direction="vertical">
        <Radio value={1}>Option A</Radio>
        <Radio value={2}>Option B</Radio>
        <Radio value={3}>Option C</Radio>
        <Radio value={4}>
          More...
          {value === 4 ? <Input style={{ width: 100, marginLeft: 10 }} /> : null}
        </Radio>
      </Space>
    </Radio.Group>
  );
};

export default App;
按钮样式

按钮样式的单选组合。

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import type { RadioChangeEvent } from 'infrad';
import { Radio } from 'infrad';
import React from 'react';

const onChange = (e: RadioChangeEvent) => {
  console.log(`radio checked:${e.target.value}`);
};

const App: React.FC = () => (
  <>
    <Radio.Group onChange={onChange} defaultValue="a">
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b">Shanghai</Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
    <Radio.Group onChange={onChange} defaultValue="a" style={{ marginTop: 16 }}>
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b" disabled>
        Shanghai
      </Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
    <Radio.Group disabled onChange={onChange} defaultValue="a" style={{ marginTop: 16 }}>
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b">Shanghai</Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
  </>
);

export default App;
大小

大中小三种组合，可以和表单输入框进行对应配合。

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import { Radio } from 'infrad';
import React from 'react';

const App: React.FC = () => (
  <>
    <Radio.Group defaultValue="a" size="large">
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b">Shanghai</Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
    <Radio.Group defaultValue="a" style={{ marginTop: 16 }}>
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b">Shanghai</Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
    <Radio.Group defaultValue="a" size="small" style={{ marginTop: 16 }}>
      <Radio.Button value="a">Hangzhou</Radio.Button>
      <Radio.Button value="b">Shanghai</Radio.Button>
      <Radio.Button value="c">Beijing</Radio.Button>
      <Radio.Button value="d">Chengdu</Radio.Button>
    </Radio.Group>
  </>
);

export default App;

API#

Radio/Radio.Button#

参数说明类型默认值
autoFocus自动获取焦点booleanfalse
checked指定当前是否选中booleanfalse
defaultChecked初始是否选中booleanfalse
disabled禁用 Radiobooleanfalse
value根据 value 进行比较，判断是否选中any-

RadioGroup#

单选框组合，用于包裹一组 Radio。

参数说明类型默认值版本
buttonStyleRadioButton 的风格样式，目前有描边和填色两种风格outline | solidoutline
defaultValue默认选中的值any-
disabled禁选所有子单选器booleanfalse
nameRadioGroup 下所有 input[type="radio"] 的 name 属性string-
options以配置形式设置子元素string[] | number[] | Array<{ label: string value: string disabled?: boolean }>-
optionType用于设置 Radio options 类型default | buttondefault4.4.0
size大小，只对按钮样式生效large | middle | small-
value用于设置当前选中的值any-
onChange选项变化时的回调函数function(e:Event)-

方法#

Radio#

名称描述
blur()移除焦点
focus()获取焦点