alpha

Switch

A switch allows a user to turn a setting on or off.

installyarn add react-aria-components
version1.0.0-alpha.0
usageimport {Switch} from 'react-aria-components'

Example#


import {Switch} from 'react-aria-components';

<Switch>
  <div className="indicator" />
  Low power mode
</Switch>
import {Switch} from 'react-aria-components';

<Switch>
  <div className="indicator" />
  Low power mode
</Switch>
import {Switch} from 'react-aria-components';

<Switch>
  <div className="indicator" />
  Low power mode
</Switch>
Show CSS
.react-aria-Switch {
  --label-color: var(--spectrum-alias-text-color);
  --deselected-color: gray;
  --deselected-color-pressed: dimgray;
  --selected-color: slateblue;
  --selected-color-pressed: lch(from slateblue calc(l - 10%) c h);
  --track-color: var(--spectrum-alias-background-color-default);
  --indicator-color: var(--selected-color);
  --indicator-color-pressed: var(--selected-color-pressed);

  display: flex;
  align-items: center;
  gap: 0.571rem;
  font-size: 1.143rem;
  color: var(--label-color);

  .indicator {
    width: 2rem;
    height: 1.143rem;
    border: 2px solid var(--deselected-color);
    background: var(--track-color);
    border-radius: 1.143rem;
    transition: all 200ms;

    &:before {
      content: '';
      display: block;
      margin: 0.143rem;
      width: 0.857rem;
      height: 0.857rem;
      background: var(--indicator-color);
      border-radius: 16px;
      transition: all 200ms;
    }
  }

  &[data-pressed] .indicator {
    border-color: var(--deselected-color-pressed);

    &:before {
      background: var(--indicator-color-pressed);
    }
  }

  &[data-selected] {
    .indicator {
      border-color: var(--selected-color);
      background: var(--selected-color);

      &:before {
        background: var(--track-color);
        transform: translateX(100%);
      }
    }

    &[data-pressed] {
      .indicator {
        border-color: var(--selected-color-pressed);
        background: var(--selected-color-pressed);
      }
    }
  }

  &[data-focus-visible] .indicator {
    box-shadow: 0 0 0 2px var(--spectrum-alias-background-color-default), 0 0 0 4px var(--selected-color);
  }

  &[data-disabled] {
    opacity: 0.4;
  }
}

@media (forced-colors: active) {
  .react-aria-Switch {
    forced-color-adjust: none;

    --label-color: ButtonText;
    --deselected-color: ButtonBorder;
    --deselected-color-pressed: ButtonBorder;
    --indicator-color: ButtonText;
    --indicator-color-pressed: ButtonText;
    --track-color: ButtonFace;
    --selected-color: Highlight;
    --selected-color-pressed: Highlight;
    --spectrum-alias-background-color-default: Canvas;

    &[data-disabled] {
      opacity: 1;
      --deselected-color: GrayText;
      --selected-color: GrayText;
      --label-color: GrayText;
      --indicator-color: GrayText;
    }
  }
}
.react-aria-Switch {
  --label-color: var(--spectrum-alias-text-color);
  --deselected-color: gray;
  --deselected-color-pressed: dimgray;
  --selected-color: slateblue;
  --selected-color-pressed: lch(from slateblue calc(l - 10%) c h);
  --track-color: var(--spectrum-alias-background-color-default);
  --indicator-color: var(--selected-color);
  --indicator-color-pressed: var(--selected-color-pressed);

  display: flex;
  align-items: center;
  gap: 0.571rem;
  font-size: 1.143rem;
  color: var(--label-color);

  .indicator {
    width: 2rem;
    height: 1.143rem;
    border: 2px solid var(--deselected-color);
    background: var(--track-color);
    border-radius: 1.143rem;
    transition: all 200ms;

    &:before {
      content: '';
      display: block;
      margin: 0.143rem;
      width: 0.857rem;
      height: 0.857rem;
      background: var(--indicator-color);
      border-radius: 16px;
      transition: all 200ms;
    }
  }

  &[data-pressed] .indicator {
    border-color: var(--deselected-color-pressed);

    &:before {
      background: var(--indicator-color-pressed);
    }
  }

  &[data-selected] {
    .indicator {
      border-color: var(--selected-color);
      background: var(--selected-color);

      &:before {
        background: var(--track-color);
        transform: translateX(100%);
      }
    }

    &[data-pressed] {
      .indicator {
        border-color: var(--selected-color-pressed);
        background: var(--selected-color-pressed);
      }
    }
  }

  &[data-focus-visible] .indicator {
    box-shadow: 0 0 0 2px var(--spectrum-alias-background-color-default), 0 0 0 4px var(--selected-color);
  }

  &[data-disabled] {
    opacity: 0.4;
  }
}

@media (forced-colors: active) {
  .react-aria-Switch {
    forced-color-adjust: none;

    --label-color: ButtonText;
    --deselected-color: ButtonBorder;
    --deselected-color-pressed: ButtonBorder;
    --indicator-color: ButtonText;
    --indicator-color-pressed: ButtonText;
    --track-color: ButtonFace;
    --selected-color: Highlight;
    --selected-color-pressed: Highlight;
    --spectrum-alias-background-color-default: Canvas;

    &[data-disabled] {
      opacity: 1;
      --deselected-color: GrayText;
      --selected-color: GrayText;
      --label-color: GrayText;
      --indicator-color: GrayText;
    }
  }
}
.react-aria-Switch {
  --label-color: var(--spectrum-alias-text-color);
  --deselected-color: gray;
  --deselected-color-pressed: dimgray;
  --selected-color: slateblue;
  --selected-color-pressed: lch(from slateblue calc(l - 10%) c h);
  --track-color: var(--spectrum-alias-background-color-default);
  --indicator-color: var(--selected-color);
  --indicator-color-pressed: var(--selected-color-pressed);

  display: flex;
  align-items: center;
  gap: 0.571rem;
  font-size: 1.143rem;
  color: var(--label-color);

  .indicator {
    width: 2rem;
    height: 1.143rem;
    border: 2px solid var(--deselected-color);
    background: var(--track-color);
    border-radius: 1.143rem;
    transition: all 200ms;

    &:before {
      content: '';
      display: block;
      margin: 0.143rem;
      width: 0.857rem;
      height: 0.857rem;
      background: var(--indicator-color);
      border-radius: 16px;
      transition: all 200ms;
    }
  }

  &[data-pressed] .indicator {
    border-color: var(--deselected-color-pressed);

    &:before {
      background: var(--indicator-color-pressed);
    }
  }

  &[data-selected] {
    .indicator {
      border-color: var(--selected-color);
      background: var(--selected-color);

      &:before {
        background: var(--track-color);
        transform: translateX(100%);
      }
    }

    &[data-pressed] {
      .indicator {
        border-color: var(--selected-color-pressed);
        background: var(--selected-color-pressed);
      }
    }
  }

  &[data-focus-visible] .indicator {
    box-shadow: 0 0 0 2px var(--spectrum-alias-background-color-default), 0 0 0 4px var(--selected-color);
  }

  &[data-disabled] {
    opacity: 0.4;
  }
}

@media (forced-colors: active) {
  .react-aria-Switch {
    forced-color-adjust: none;

    --label-color: ButtonText;
    --deselected-color: ButtonBorder;
    --deselected-color-pressed: ButtonBorder;
    --indicator-color: ButtonText;
    --indicator-color-pressed: ButtonText;
    --track-color: ButtonFace;
    --selected-color: Highlight;
    --selected-color-pressed: Highlight;
    --spectrum-alias-background-color-default: Canvas;

    &[data-disabled] {
      opacity: 1;
      --deselected-color: GrayText;
      --selected-color: GrayText;
      --label-color: GrayText;
      --indicator-color: GrayText;
    }
  }
}

Features#


There is no native HTML element with switch styling. <input type="checkbox"> is the closest semantically, but isn't styled or exposed to assistive technology as a switch. Switch helps achieve accessible switches that can be styled as needed.

  • Styleable – Hover, press, keyboard focus, and selection states are provided for easy styling. These states only apply when interacting with an appropriate input device, unlike CSS pseudo classes.
  • Accessible – Uses a visually hidden <input> element with role="switch" under the hood, which also enables HTML form integration and autofill. A label element is built-in to ensure the switch is usable with assistive technologies.
  • Cross-browser – Mouse, touch, keyboard, and focus interactions are normalized to ensure consistency across browsers and devices.

Anatomy#


Low power modeInputLabel

A switch consists of a visual selection indicator and a label. Users may click or touch a switch to toggle the selection state, or use the Tab key to navigate to it and the Space key to toggle it.

In most cases, switches should have a visual label. If the switch does not have a visible label, an aria-label or aria-labelledby prop must be passed instead to identify the element to assistive technology.

Props#


NameTypeDefaultDescription
defaultSelectedbooleanWhether the Switch should be selected (uncontrolled).
isSelectedbooleanWhether the Switch should be selected (controlled).
valuestringThe value of the input element, used when submitting an HTML form. See MDN.
namestringThe name of the input element, used when submitting an HTML form. See MDN.
isDisabledbooleanWhether the input is disabled.
isReadOnlybooleanWhether the input can be selected but not changed by the user.
autoFocusbooleanWhether the element should receive focus on render.
childrenReactNode( (values: SwitchRenderProps )) => ReactNodeThe children of the component. A function may be provided to alter the children based on component state.
classNamestring( (values: SwitchRenderProps )) => stringThe CSS className for the element. A function may be provided to compute the class based on component state.
styleCSSProperties( (values: SwitchRenderProps )) => CSSPropertiesThe inline style for the element. A function may be provided to compute the style based on component state.
Events
NameTypeDefaultDescription
onChange( (isSelected: boolean )) => voidHandler that is called when the Switch's selection state changes.
onFocus( (e: FocusEvent<Target> )) => voidHandler that is called when the element receives focus.
onBlur( (e: FocusEvent<Target> )) => voidHandler that is called when the element loses focus.
onFocusChange( (isFocused: boolean )) => voidHandler that is called when the element's focus status changes.
onKeyDown( (e: KeyboardEvent )) => voidHandler that is called when a key is pressed.
onKeyUp( (e: KeyboardEvent )) => voidHandler that is called when a key is released.
Layout
NameTypeDefaultDescription
slotstringA slot name for the component. Slots allow the component to receive props from a parent component.
Accessibility
NameTypeDefaultDescription
idstringThe element's unique identifier. See MDN.
excludeFromTabOrderboolean

Whether to exclude the element from the sequential tab order. If true, the element will not be focusable via the keyboard by tabbing. This should be avoided except in rare scenarios where an alternative means of accessing the element or its functionality via the keyboard is available.

aria-controlsstringIdentifies the element (or elements) whose contents or presence are controlled by the current element.
aria-labelstringDefines a string value that labels the current element.
aria-labelledbystringIdentifies the element (or elements) that labels the current element.
aria-describedbystringIdentifies the element (or elements) that describes the object.
aria-detailsstringIdentifies the element (or elements) that provide a detailed, extended description for the object.

Styling#


React Aria components can be styled in many ways, including using CSS classes, inline styles, utility classes (e.g. Tailwind), CSS-in-JS (e.g. Styled Components), etc. By default, all components include a builtin className attribute which can be targeted using CSS selectors. These follow the react-aria-ComponentName naming convention.

.react-aria-Switch {
  /* ... */
}
.react-aria-Switch {
  /* ... */
}
.react-aria-Switch {
  /* ... */
}

A custom className can also be specified on any component. This overrides the default className provided by React Aria with your own.

<Switch className="my-switch">
  {/* ... */}
</Switch>
<Switch className="my-switch">
  {/* ... */}
</Switch>
<Switch className="my-switch">
  {/* ... */}
</Switch>

In addition, some components support multiple UI states (e.g. focused, placeholder, readonly, etc.). React Aria components expose states using DOM attributes, which you can target in CSS selectors. These are ARIA attributes wherever possible, or data attributes when a relevant ARIA attribute does not exist. For example:

.react-aria-Switch[data-pressed] {
  /* ... */
}
.react-aria-Switch[data-pressed] {
  /* ... */
}
.react-aria-Switch[data-pressed] {
  /* ... */
}

The className and style props also accept functions which receive states for styling. This lets you dynamically determine the classes or styles to apply, which is useful when using utility CSS libraries like Tailwind.

<Switch
  className={({ isPressed }) => isPressed ? 'bg-gray-700' : 'bg-gray-600'}
/>
<Switch
  className={({ isPressed }) =>
    isPressed ? 'bg-gray-700' : 'bg-gray-600'}
/>
<Switch
  className={(
    { isPressed }
  ) =>
    isPressed
      ? 'bg-gray-700'
      : 'bg-gray-600'}
/>

Render props may also be used as children to alter what elements are rendered based on the current state. For example, you could render an extra element when the switch is selected.

<Switch>
  {({isSelected}) => (
    <>
      {isSelected && <OnIcon />}
      Wi-Fi
    </>
  )}
</Switch>
<Switch>
  {({isSelected}) => (
    <>
      {isSelected && <OnIcon />}
      Wi-Fi
    </>
  )}
</Switch>
<Switch>
  {(
    { isSelected }
  ) => (
    <>
      {isSelected && (
        <OnIcon />
      )}
      Wi-Fi
    </>
  )}
</Switch>

The states, selectors, and render props for Switch are documented below.

NameCSS SelectorDescription
isSelected[data-selected]Whether the switch is selected.
isHovered[data-hovered]Whether the switch is currently hovered with a mouse.
isPressed[data-pressed]Whether the switch is currently in a pressed state.
isFocused[data-focused]Whether the switch is focused, either via a mouse or keyboard.
isFocusVisible[data-focus-visible]Whether the switch is keyboard focused.
isDisabled[data-disabled]Whether the switch is disabled.
isReadOnly[data-readonly]Whether the switch is read only.

Reusable wrappers#


If you will use a Switch in multiple places in your app, you can wrap all of the pieces into a reusable component. This way, the DOM structure, styling code, and other logic are defined in a single place and reused everywhere to ensure consistency.

This example wraps Switch and all of its children together into a single component.

import type {SwitchProps} from 'react-aria-components';

function MySwitch({children, ...props}: SwitchProps) {
  return (
    <Switch {...props}>
      <div className="indicator" />
      {children}
    </Switch>
  );
}

<MySwitch>Wi-Fi</MySwitch>
import type {SwitchProps} from 'react-aria-components';

function MySwitch({children, ...props}: SwitchProps) {
  return (
    <Switch {...props}>
      <div className="indicator" />
      {children}
    </Switch>
  );
}

<MySwitch>Wi-Fi</MySwitch>
import type {SwitchProps} from 'react-aria-components';

function MySwitch(
  { children, ...props }:
    SwitchProps
) {
  return (
    <Switch {...props}>
      <div className="indicator" />
      {children}
    </Switch>
  );
}

<MySwitch>
  Wi-Fi
</MySwitch>

Usage#


The following examples show how to use the MySwitch component created in the above example.

Default value#

Switches are not selected by default. The defaultSelected prop can be used to set the default state.

<MySwitch defaultSelected>Wi-Fi</MySwitch>
<MySwitch defaultSelected>Wi-Fi</MySwitch>
<MySwitch
  defaultSelected
>
  Wi-Fi
</MySwitch>

Controlled value#

The isSelected prop can be used to make the selected state controlled. The onChange event is fired when the user presses the switch, and receives the new value.

function Example() {
  let [selected, setSelected] = React.useState(false);

  return (
    <>
      <MySwitch onChange={setSelected}>Low power mode</MySwitch>
      <p>{selected ? 'Low' : 'High'} power mode active.</p>
    </>
  );
}
function Example() {
  let [selected, setSelected] = React.useState(false);

  return (
    <>
      <MySwitch onChange={setSelected}>
        Low power mode
      </MySwitch>
      <p>{selected ? 'Low' : 'High'} power mode active.</p>
    </>
  );
}
function Example() {
  let [
    selected,
    setSelected
  ] = React.useState(
    false
  );

  return (
    <>
      <MySwitch
        onChange={setSelected}
      >
        Low power mode
      </MySwitch>
      <p>
        {selected
          ? 'Low'
          : 'High'}{' '}
        power mode
        active.
      </p>
    </>
  );
}

Disabled#

Switches can be disabled using the isDisabled prop.

<MySwitch isDisabled>Airplane Mode</MySwitch>
<MySwitch isDisabled>Airplane Mode</MySwitch>
<MySwitch isDisabled>
  Airplane Mode
</MySwitch>

Read only#

The isReadOnly prop makes the selection immutable. Unlike isDisabled, the Switch remains focusable. See the MDN docs for more information.

<MySwitch isSelected isReadOnly>Bluetooth</MySwitch>
<MySwitch isSelected isReadOnly>Bluetooth</MySwitch>
<MySwitch
  isSelected
  isReadOnly
>
  Bluetooth
</MySwitch>

HTML forms#

Switch supports the name and value props for integration with HTML forms.

<MySwitch name="power" value="low">Low power mode</MySwitch>
<MySwitch name="power" value="low">Low power mode</MySwitch>
<MySwitch
  name="power"
  value="low"
>
  Low power mode
</MySwitch>

Advanced customization#


Hooks#

If you need to customize things further, such as accessing internal state or customizing DOM structure, you can drop down to the lower level Hook-based API. See useSwitch for more details.