Package Exports

rn-responsive-styles
rn-responsive-styles/lib/index.js

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Readme

React Native Responsive Styles

rn-responsive-styles
Create responsive styles for react-native and react-native-web with minimal re-renders

This library adds support for dynamic styling based on device size, it was built to replace inline dynamic styles for individual components.

This library builds a single stylesheet from the provided styles and conditionally returns them based on device size. It uses a custom version of React Native's useWindowDimensions so that it only re-renders when the device size passes over one of the breakpoints, instead of re-rendering on every pixel change.

Installation

yarn add rn-responsive-styles or npm install rn-responsive-styles --save

Demo

Demo of Responsive Styles

Usage

import { Text, View } from 'react-native'
import { CreateResponsiveStyle, DEVICE_SIZES } from 'rn-responsive-styles'

export default function App() {
  const { styles, deviceSize } = useStyles()

  return (
    <View style={styles('container')}>
      <Text style={styles('text')}>Device Size: {deviceSize}</Text>
    </View>
  )
}

const useStyles = CreateResponsiveStyle(
  {
    container: {
      flex: 1,
      backgroundColor: '#fff',
      alignItems: 'center',
      justifyContent: 'center',
    },
    text: {
      fontSize: 30,
      color: 'white',
    },
  },
  {
    [DEVICE_SIZES.EXTRA_LARGE_DEVICE]: {
      container: {
        backgroundColor: 'blue',
      },
    },
    [DEVICE_SIZES.SMALL_DEVICE]: {
      container: {
        backgroundColor: 'red',
      },
      text: {
        fontSize: 20,
      },
    },
  },
)

Simple Media Queries

To specify styles that apply to multiple device sizes you can use the built in minSize() and maxSize() functions. These allow you to specify styles similar to CSS media queries min-width and max-width.

import { CreateResponsiveStyle, DEVICE_SIZES, minSize, maxSize } from 'rn-responsive-styles'

const useStyles = CreateResponsiveStyle(
  { ... },
  {
    // Will apply the size 30 font to large and extra large devices
    [minSize(DEVICE_SIZES.LARGE_DEVICE)]: {
      text: {
        fontSize: 30,
      },
    },
    // Will apply the size 20 to medium, small and extra-small devices
    [maxSize(DEVICE_SIZES.MEDIUM_DEVICE)]: {
      text: {
        fontSize: 20,
      },
    },
  },
)

Options

The currently configured breakpoints are:

Size	Value	Breakpoints
extra small	`DEVICE_SIZES.EXTRA_SMALL_DEVICE`	`width <= 540`
small	`DEVICE_SIZES.SMALL_DEVICE`	`540 < width <= 768`
medium	`DEVICE_SIZES.MEDIUM_DEVICE`	`768 < width <= 992`
large	`DEVICE_SIZES.LARGE_DEVICE`	`992 < width <= 1200`
extra large	`DEVICE_SIZES.EXTRA_LARGE_DEVICE`	`1200 < width`

Right now there is no way to customize the breakpoint values, but I plan on adding that in the future.