README.md

React Mobile Picker

React Mobile Picker is a super simple component like iOS picker for React. It's almost unstyled, so you can easily customize it as you like.

Preview

Scan this Qr in you mobile.

Or visit (in mobile or mobile simulator): https://react-mobile-picker.vercel.app

Installation

npm install react-mobile-picker

or

yarn add react-mobile-picker

Basic usage

By design, React Mobile Picker is a controlled component, which means the selected items of the rendered element will always reflect the value prop. Every time you want to change the selected items, just modify the value prop.

import { useState } from 'react'
import Picker from 'react-mobile-picker'

const selections = {
  title: ['Mr.', 'Mrs.', 'Ms.', 'Dr.'],
  firstName: ['John', 'Micheal', 'Elizabeth'],
  lastName: ['Lennon', 'Jackson', 'Jordan', 'Legend', 'Taylor']
}

function MyPicker() {
  const [pickerValue, setPickerValue] = useState({
    title: 'Mr.',
    firstName: 'Micheal',
    lastName: 'Jordan'
  })

  return (
    <Picker value={pickerValue} onChange={setPickerValue}>
      {Object.keys(selections).map(name => (
        <Picker.Column key={name} name={name}>
          {selections[name].map(option => (
            <Picker.Item key={option} value={option}>
              {option}
            </Picker.Item>
          ))}
        </Picker.Column>
      ))}
    </Picker>
  )
}

Using render props

Each Picker.Item component exposes a selected state that can be used to customize the appearance of the item. This is called the render props technique.

import { useState } from 'react'
import Picker from 'react-mobile-picker'

function MyPicker() {
  const [pickerValue, setPickerValue] = useState({
    name1: 'item1',
    /* ... */
  })

  return (
    <Picker value={pickerValue} onChange={setPickerValue}>
      <Picker.Column name="name1">
        <Picker.Item value="item1">
          {({ selected }) => (
            /* Use the `selected` state to conditionally style the selected item */
            <div style={{ color: selected ? 'red' : 'black' }}>
              Item 1
            </div>
          )}
        </Picker.Item>
        {/* ... */}
      </Picker.Column>
      {/* ... */}
    </Picker>
  )
}

Support wheel scrolling

React Mobile Picker is designed to be used on mobile devices, but it can also support wheel scrolling on desktop browsers. To enable this feature, you can set the wheelMode prop to either 'natural' or 'normal'.

import { useState } from 'react'
import Picker from 'react-mobile-picker'

function MyPicker() {
  const [pickerValue, setPickerValue] = useState({
    name1: 'item1',
    /* ... */
  })

  return (
    <Picker value={pickerValue} onChange={setPickerValue} wheelMode="natural">
      {/* ... */}
    </Picker>
  )
}

Component API

Picker

the main Picker container component.

Prop	Default	Description
value	N/A	{ [name: string]: string } Selected value pairs
onChange	N/A	(value: T, key: string) => void Callback function when the selected value changes
height	216	number Height of the picker in px
itemHeight	36	number Height of each item (that is each option) in px
wheelMode	'off'	'off' | 'natural' | 'normal' Enable wheel scrolling on desktop browsers

Picker.Column

The wrapper component for each column.

Prop	Default	Description
name	N/A	string The name should be one of the keys of the value in Picker component

Picker.Item

The wrapper component for each selectable option.

Prop	Default	Description
value	N/A	string The value of the current option

Render Prop	Description
selected	boolean Whether or not the current option is selected

More examples

You can check out the examples folder for more code samples. Or run this project locally:

git clone this repo
cd react-mobile-picker
pnpm i
pnpm run dev
point your browser to http://localhost:5173

Author

Adcent Lei (@adcentlei)

License

MIT.