Hanzo GUI

Slider

Drag to set values, vertically or horizontally

  • Sizable, themed, works controlled or uncontrolled.
  • Multiple thumbs support.
  • Control steps and control with your keyboard.
  • Accessible, easy to compose and customize.

Installation

Slider is already installed in @hanzo/gui, or you can install it independently:

npm install @hanzogui/slider

Usage

Slider comes as multiple components that ship with default styles and are sizable. The size prop on <Slider /> will automatically pass size down to all the sub-components.

import { Slider } from '@hanzo/gui'

export default () => (
  <Slider size="$4" width={200} defaultValue={[50]} max={100} step={1}>
    <Slider.Track>
      <Slider.TrackActive />
    </Slider.Track>
    <Slider.Thumb circular index={0} />
  </Slider>
)

You can also optionally style any component, either using inline style props or by wrapping with styled:

import { Slider, styled } from '@hanzo/gui'

const CustomSliderTrack = styled(Slider.Track, {
  backgroundColor: 'red',
})

export default () => (
  <Slider size="$4" width={200} defaultValue={[50]} max={100} step={1}>
    <CustomSliderTrack>
      <Slider.TrackActive />
    </CustomSliderTrack>
    <Slider.Thumb circular index={0} />
  </Slider>
)

Vertical Slider on iOS

When using a vertical slider on iOS, you need to pass safe area insets to GuiProvider for proper pointer position calculation. Without this, the slider thumb may not track your finger correctly due to iOS safe area offsets.

import { GuiProvider } from '@hanzo/gui'
import { useSafeAreaInsets } from 'react-native-safe-area-context'
import { config } from './gui.config'

function App() {
  const insets = useSafeAreaInsets()

  return (
    <GuiProvider config={config} insets={insets}>
      {/* Your app content */}
    </GuiProvider>
  )
}

Then you can use vertical sliders normally:

import { Slider, XStack } from '@hanzo/gui'

export default () => (
  <XStack height={200} alignItems="center" gap="$8">
    <Slider height={200} orientation="vertical" defaultValue={[50]} max={100} step={1}>
      <Slider.Track>
        <Slider.TrackActive />
      </Slider.Track>
      <Slider.Thumb size="$2" index={0} circular />
    </Slider>
  </XStack>
)

This is only required on iOS. On Android and web, the slider works correctly without passing insets.

API Reference

Slider

Contains every component for the slider.

PropTypeDefaultRequired
sizeSizeTokens--
namestring--
valuenumber[]--
defaultValuenumber[]--
onValueChange(value: number[]): void--
disabledboolean--
orientation"horizontal" | "vertical"horizontal-
dir"ltr" | "rtl"--
minnumber--
maxnumber--
stepnumber--
minStepsBetweenThumbsnumber--
onSlideStart(event: GestureReponderEvent, value: number, target: 'thumb' | 'track') => void--
onSlideMove(event: GestureReponderEvent, value: number) => void--
onSlideEnd(event: GestureReponderEvent, value: number) => void--

Slider.Track

Slider.Track inherits SizableStack, extending all the default props.

Slider.TrackActive

Slider.TrackActive inherits Stack, extending all the default props.

Slider.Thumb

Slider.Thumb inherits SizableStack, extending all the default props, adding:

PropTypeDefaultRequired
indexnumber-

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