@material/radio

What is @material/radio?

@material/radio is a Material Design radio button component for the web. It provides a set of customizable radio buttons that adhere to the Material Design guidelines, ensuring a consistent and visually appealing user interface.

What are @material/radio's main functionalities?

Basic Radio Button

This code sample demonstrates a basic radio button using the @material/radio package. It includes the necessary HTML structure and CSS classes to create a Material Design radio button.

<div class="mdc-form-field">
  <div class="mdc-radio">
    <input class="mdc-radio__native-control" type="radio" id="radio-1" name="radios" checked>
    <div class="mdc-radio__background">
      <div class="mdc-radio__outer-circle"></div>
      <div class="mdc-radio__inner-circle"></div>
    </div>
  </div>
  <label for="radio-1">Radio 1</label>
</div>

Disabled Radio Button

This code sample shows how to create a disabled radio button using the @material/radio package. The 'disabled' attribute is added to the input element to make the radio button non-interactive.

<div class="mdc-form-field">
  <div class="mdc-radio">
    <input class="mdc-radio__native-control" type="radio" id="radio-2" name="radios" disabled>
    <div class="mdc-radio__background">
      <div class="mdc-radio__outer-circle"></div>
      <div class="mdc-radio__inner-circle"></div>
    </div>
  </div>
  <label for="radio-2">Radio 2 (Disabled)</label>
</div>

Custom Styling

This code sample demonstrates how to apply custom styling to a radio button using the @material/radio package. Custom CSS is used to change the color of the radio button's outer circle and inner circle.

<style>
  .custom-radio .mdc-radio__background {
    border-color: #ff5722;
  }
  .custom-radio .mdc-radio__inner-circle {
    background-color: #ff5722;
  }
</style>
<div class="mdc-form-field custom-radio">
  <div class="mdc-radio">
    <input class="mdc-radio__native-control" type="radio" id="radio-3" name="radios">
    <div class="mdc-radio__background">
      <div class="mdc-radio__outer-circle"></div>
      <div class="mdc-radio__inner-circle"></div>
    </div>
  </div>
  <label for="radio-3">Custom Styled Radio</label>
</div>

Other packages similar to @material/radio

react-radio-group

react-radio-group is a React component for creating radio button groups. It provides a simple API for managing radio button states and is highly customizable. Unlike @material/radio, which is based on Material Design guidelines, react-radio-group is more flexible in terms of styling and can be used in various design systems.

antd

Ant Design (antd) is a comprehensive UI library for React that includes a set of high-quality components, including radio buttons. The radio buttons in antd are highly customizable and come with built-in support for themes and internationalization. Compared to @material/radio, antd offers a broader range of components and is designed for enterprise-level applications.

semantic-ui-react

semantic-ui-react is the official React integration for Semantic UI. It provides a set of components, including radio buttons, that follow the Semantic UI design principles. The radio buttons in semantic-ui-react are easy to use and integrate well with other Semantic UI components. Unlike @material/radio, which follows Material Design guidelines, semantic-ui-react follows the Semantic UI design language.

README

Radio Buttons

Radio buttons allow the user to select one option from a set while seeing all available options.

Design & API Documentation

• Material Design guidelines: Selection Controls – Radio buttons
• Demo

Installation

npm install @material/radio

Basic Usage

We recommend using MDC Radio with MDC Form Field for enhancements such as label alignment, label activation of the ripple interaction effect, and RTL-awareness.

HTML Structure

<div class="mdc-form-field">
  <div class="mdc-radio">
    <input class="mdc-radio__native-control" type="radio" id="radio-1" name="radios" checked>
    <div class="mdc-radio__background">
      <div class="mdc-radio__outer-circle"></div>
      <div class="mdc-radio__inner-circle"></div>
    </div>
    <div class="mdc-radio__ripple"></div>
  </div>
  <label for="radio-1">Radio 1</label>
</div>

Styles

@import "@material/form-field/mdc-form-field";
@import "@material/radio/mdc-radio";

JavaScript Instantiation

The radio button will work without JavaScript, but you can enhance it with a ripple interaction effect by instantiating MDCRadio on the mdc-radio element. To activate the ripple effect upon interacting with the label, you must also instantiate MDCFormField on the mdc-form-field element and set the MDCRadio instance as its input.

import {MDCFormField} from '@material/form-field';
import {MDCRadio} from '@material/radio';

const radio = new MDCRadio(document.querySelector('.mdc-radio'));
const formField = new MDCFormField(document.querySelector('.mdc-form-field'));
formField.input = radio;

See Importing the JS component for more information on how to import JavaScript.

Variants

Disabled

To disable a radio button, add the mdc-radio--disabled class to the root element and set the disabled attribute on the <input> element. Disabled radio buttons cannot be interacted with and have no visual interaction effect.

<div class="mdc-form-field">
  <div class="mdc-radio mdc-radio--disabled">
    <input class="mdc-radio__native-control" type="radio" id="radio-1" name="radios" disabled>
    <div class="mdc-radio__background">
      <div class="mdc-radio__outer-circle"></div>
      <div class="mdc-radio__inner-circle"></div>
    </div>
    <div class="mdc-radio__ripple"></div>
  </div>
  <label for="radio-1">Radio 1</label>
</div>

Additional Information

Accessibility

Material Design spec advises that touch targets should be at least 48 x 48 px. To meet this requirement, add the mdc-radio--touch class to your radio as follows:

<div class="mdc-touch-target-wrapper">
  <div class="mdc-radio mdc-radio--touch">
    <input class="mdc-radio__native-control" type="radio" id="radio-1" name="radios" checked>
    <div class="mdc-radio__background">
      <div class="mdc-radio__outer-circle"></div>
      <div class="mdc-radio__inner-circle"></div>
    </div>
    <div class="mdc-radio__ripple"></div>
  </div>
</div>

Note that the outer mdc-touch-target-wrapper element is only necessary if you want to avoid potentially overlapping touch targets on adjacent elements (due to collapsing margins).

Style Customization

MDC Radio uses MDC Theme's secondary color by default. Use the following mixins to customize it.

Sass Mixins

Mixin	Description
mdc-radio-unchecked-stroke-color($color)	Sets the stroke color of an unchecked, enabled radio button
mdc-radio-checked-stroke-color($color)	Sets the stroke color of a checked, enabled radio button
mdc-radio-ink-color($color)	Sets the ink color of an enabled radio button
mdc-radio-disabled-unchecked-stroke-color($color)	Sets the stroke color of an unchecked, disabled radio button
mdc-radio-disabled-checked-stroke-color($color)	Sets the stroke color of a checked, disabled radio button
mdc-radio-disabled-ink-color($color)	Sets the ink color of a disabled radio button
mdc-radio-focus-indicator-color($color)	Sets the color of the focus indicator
mdc-radio-touch-target($size, $ripple-size)	Sets radio touch target size which can be more than the ripple size. Param $ripple-size is required for custom ripple size, defaults to $mdc-radio-ripple-size.
mdc-radio-ripple-size($size)	Sets custom ripple size of radio.
mdc-radio-density($density-scale)	Sets density scale for radio. Supported density scale values are -3, -2, -1 and 0 (default).

Caveat: Edge and CSS Custom Properties

In browsers that fully support CSS custom properties, the above mixins will work if you pass in a MDC Theme property (e.g. primary) as an argument. However, Edge does not fully support CSS custom properties. If you are using any of the Sass mixins, you must pass in an actual color value for support in Edge.

MDCRadio Properties and Methods

Property	Value Type	Description
checked	Boolean	Setter/getter for the radio's checked state
disabled	Boolean	Setter/getter for the radio's disabled state. Setter proxies to foundation's setDisabled method
value	String	Setter/getter for the radio's value

Usage within Web Frameworks

If you are using a JavaScript framework, such as React or Angular, you can create a Radio button for your framework. Depending on your needs, you can use the Simple Approach: Wrapping MDC Web Vanilla Components, or the Advanced Approach: Using Foundations and Adapters. Please follow the instructions here.

MDCRadioAdapter

Method Signature	Description
setNativeControlDisabled(disabled: boolean) => void	Sets the input's disabled property to the given value
addClass(className: string) => void	Adds a class to the root element
removeClass(className: string) => void	Removes a class from the root element

MDCRadioFoundation

Method Signature	Description
setDisabled(disabled: boolean) => void	Sets the disabled value of the native control