This version of the documentation is outdated. Check the latest version here!

Switch

The Switch is a two value control. It is like a physical toggle switch, it has an on and an off state that is represented as a boolean value.

Basic usage

The following example will render a simple switch with a label.

JSX
<Switch label="The label of the switch" />

For being more informative a description and a color can also be passed to the switch.

JSX
<!-- Label and description for more info -->
<Switch label="Front door" description="Controls the lock of the front door." checked={myFrontLock} />

<!-- Different color switches -->
<Switch color="danger" label="Sync on mobile data" />
<Switch color="info" label="Email notification" />

Value binding

Controlled component

The switch can be used as a controlled component by providing the checked and the onChange props.

JSX
const App = () => {
    const [lights, setLights] = useState(false);
    return <Switch checked={lights} onChange={(ev) => setLights(ev.target.checked)} />;
}

Uncontrolled component

When using the switch as an uncontrolled component, a ref prop can be used to have a reference to the component. In this case, the checked property can be used to get the switch value.

JSX
const App = () => {
    const myRef = useRef(null);
    const saveChanges = () => { 
        console.log(myRef.current.checked); // the checked property will hold the value 
    };
    return <div>
        <Switch ref={myRef} label="Air Conditioner" defaultChecked={true} />
        <Button onClick={saveChanges}>Save the changes</Button>
    </div>
}

For many more examples - simple and complex use-cases - check out the switch demos for react.

Options

Name Type Default value Description
checked Boolean undefined Sets the on/off state of the switch.
color String undefined A predefined color to style the component.
Supported values are:
  • primary
  • secondary
  • success
  • danger
  • warning
  • info
  • dark
  • light
defaultChecked Boolean undefined Defines the initial value of the switch, when using it as an uncontrolled component.
description String undefined A description that shows up under the label of the component.
disabled Boolean false Initial disabled state of the component. This will take no effect in inline display mode.
label String undefined Sets the label of component.
onChange Function undefined An event handler that is called every time the switch changes value. The event is passed as the first parameter and it's target checked property is set to the new value.
Ex.
const handler = (ev) => { setState(ev.target.checked) }
<Switch onChange={handler} checked={state.myChecked} />
position String 'end' Sets the position of the switch handle depending on the RTL setting. It can be 'start' or 'end'.
When in LTR mode, the 'start' will set the handle position to the left (a.k.a. from left to right the switch will start with the handle) and the 'end' will set it to the right - so the handle goes to the end of the switch.
In RTL mode, the 'start' will position the hande to the right. The 'end' will position the handle to the left in this case.
rtl Boolean false Right to left display.
theme String undefined

Sets the visual appearance of the component.

If it is 'auto' or undefined, the theme will automatically be chosen based on the platform. If custom themes are also present, they will take precedence over the built in themes, e.g. if there's an iOS based custom theme, it will be chosen on the iOS platform instead of the default iOS theme.

Supplied themes:
  • 'ios' - iOS theme
  • 'material' - Material theme
  • 'windows' - Windows theme
It's possible to modify theme colors or create custom themes.
Make sure that the theme you set is included in the downloaded package.
themeVariant String undefined

Controls which variant of the theme will be used (light or dark).

Possible values:
  • 'light' - Use the light variant of the theme.
  • 'dark' - Use the dark variant of the theme.
  • 'auto' or undefined - Detect the preferred system theme on devices where this is supported.

To use the option with custom themes, make sure to create two custom themes, where the dark version has the same name as the light one, suffixed with '-dark', e.g.: 'my-theme' and 'my-theme-dark'.

Customizing the appearance

While the provided pre-built themes are enough in many use cases, most of the times on top of adapting to a specific platform, you'd also like to match a brand or color scheme. Mobiscroll provides various ways to achieve this:

Override the Sass Color Variables

A convenient way to customize the colors of the Mobiscroll components is to override the Sass color variables.

Let's say your branding uses a nice red accent color, and you'd like that color to appear on the Mobiscroll components as well, while still using platform specific themes (e.g. ios on iOS devices, material on Android devices, and mobiscroll on desktop). You can override the accent color for every theme:

$mbsc-ios-accent: #e61d2a;
$mbsc-material-accent: #e61d2a;
$mbsc-mobiscroll-accent: #e61d2a;

@import "~@mobiscroll/React/dist/css/mobiscroll.react.scss"
It's important that you override the variables BEFORE the scss file import, otherwise it won't make any difference.
Here's a complete guide on how to set up Mobiscroll with SASS support

You can also customize the colors on many levels:

  1. Theme specific variables (ex. $mbsc-material-background, $mbsc-ios-dark-text) are applied to all components in a theme. Complete list of variables here.
  2. Component specific global variables (ex. $mbsc-card-background-light, $mbsc-listview-text-dark) are applied to all themes for a specific component.
  3. Component and theme specific variables (ex. $mbsc-ios-dark-form-background, $mbsc-material-input-text) are applied to a specific theme and a specific component.

Global variables of the Switch

These variables are applied to all base themes: iOS, material, windows and mobiscroll.
They all come in pairs. One for the light and one for the dark variant in each theme.

Variable name Description
$mbsc-form-background-light Affects the background and handle color of the Switch
$mbsc-form-background-dark
$mbsc-form-accent-light Affects the handle color of the Switch
$mbsc-form-accent-dark

If you really want to get sophisticated or if a color doesn't look good on a specific theme and you want to overwrite it, you can fine tune all of the above variables individually for each theme. Below are the complete list of variables broken down to themes:

iOS theme

Variable name Default value Description
$mbsc-ios-form-background
#ffffff
Affects the background color of the Switch
$mbsc-ios-form-accent
#4cd764
Affects the handle color of the Switch

iOS Dark theme

Variable name Default value Description
$mbsc-ios-dark-form-background
#0f0f0f
Affects the background color of the Switch
$mbsc-ios-dark-form-accent
#ff8400
Affects the handle color of the Switch
Picture of which variable affects which part of the Switch in iOS.

Material theme

Variable name Default value Description
$mbsc-material-form-background
#ffffff
Affects the color of the Switch handle when unchecked.
$mbsc-material-form-accent
#1a73e8
Affects the handle color of the Switch when checked.

Material Dark theme

Variable name Default value Description
$mbsc-material-dark-form-background
#868786
Affects the color of the Switch handle when unchecked.
$mbsc-material-dark-form-accent
#87b0f3
Affects the handle color of the Switch when checked.
Picture of which variable affects which part of the Switch in Material.

Windows theme

Variable name Default value Description
$mbsc-windows-form-background
#ffffff
Affects the handle inner color of the Switch
$mbsc-windows-form-text
#262626
Affects the color of the unchecked handle and the focus outline of the Switch
$mbsc-windows-form-accent
#0078d7
Affects the handle outer color of the Switch when checked.

Windows Dark theme

Variable name Default value Description
$mbsc-windows-dark-form-background
#000000
Affects the handle inner color of the Switch
$mbsc-windows-dark-form-text
#ffffff
Affects the color of the unchecked handle and the focus outline of the Switch
$mbsc-windows-dark-form-accent
#0078d7
Affects the handle outer color of the Switch when checked.
Picture of which variable affects which part of the Switch in Windows.