css-rn

A css literal string tag for React-Native

Installation

npm i css-rn

Usage

import React, { Component } from 'react';
import { AppRegistry, Text, View } from 'react-native';
import { css } from 'rss-rn'

const redStyle = css`
  color: blue;
  font-weight: bold;
  font-size: 30;
`;

const bigFontSize = 50;

// variables can be used within css template
const bigBlueStyle = css`
  color: blue;
  font-weight: bold;
  font-size: ${bigFontSize};
`;

const redStyle = css`
  color: red;
`;

export class LotsOfStyles extends Component {
  render() {
    return (
      <View>
        <Text style={redStyle}>just red</Text>
        <Text style={bigBlue}>just bigblue</Text>
        <Text style={[bigBlue, redStyle]}>bigblue, then red</Text>
        <Text style={[redStyle, bigBlue]}>red, then bigblue</Text>
      </View>
    );
  }
}

css-to-react-native

css-rn uses https://github.com/styled-components/css-to-react-native to convert css strings to React-Native style objects. Check documentation there for more technical info.

StyleSheet

Literal tag css from import { css } from 'rss-rn' returns regular JS style objects. If you want StyleSheet.create()-ed variant of the style, use styleSheet string literal tag instead:

...
import { styleSheet } from 'rss-rn'
...
...

const redStyle = styleSheet`
  color: blue;
  font-weight: bold;
  font-size: 30;
`;

const bigBlueStyle = styleSheet`
  color: blue;
  font-weight: bold;
  font-size: 30;
`;

// `redStyle` and `bigBlueStyle` are now StyleSheet.create()ed integers instead of style objects
...