A simple, but flexible SVG icon component for React Native. Read the introductory blog post.

1. Ensure sure you've installed react-native-svg
2. npm i react-native-svg-icon --save

• 0.8.0 - only supports react-native-svg >= 5.3.0
• 0.7.0 - only supports react-native-svg >= 5.3.0
• 0.6.0 - only supports react-native-svg 4.5.0
• 0.5.0 - only supports react-native-svg 4.4.x

1. Create an object of your SVG icons

   import React from 'react';
   import { G, Path } from 'react-native-svg';
   
   // Each nameValuePair can be:
   // * Name: <Svg />; or
   // * Name: { svg: <Svg />, viewBox: '0 0 50 50' }
   
   export default {
       SortArrows: <G><Path d="M0 45h90L45 0 0 45z"/><Path d="M0 55h90l-45 45L0 55z"/></G>,
       Tick: {
           svg: <Path d="M38.729 75.688a4.48 4.48 0 0 1-3.21-1.356L16.558 55.004c-1.774-1.807-1.774-4.736-.001-6.543a4.48 4.48 0 0 1 6.42 0l15.753 16.056 37.749-38.474a4.478 4.478 0 0 1 6.419 0c1.773 1.806 1.773 4.736 0 6.543L41.939 74.332a4.48 4.48 0 0 1-3.21 1.356z"/>,
           viewBox: '0 0 50 50',
       },
   }

   To conform to React/JSX standards, we need to convert SVG elements to begin with a capital letter, and convert hyphenated attributes to camelCase. For example. <path> becomes <Path> and stop-color becomes stopColor.

2. Create an <Icon /> component as a bridge between react-native-svg-icon's <SvgIcon /> which imports the above SVGs

   import React from 'react';
   import SvgIcon from 'react-native-svg-icon';
   import svgs from './assets/svgs';
   
   const Icon = (props) => <SvgIcon {...props} svgs={svgs} />;
   
   export default Icon;

Use your <Icon /> in your views.

import Icon from './components/Icon';

// Inside some view component
render() {
    return (
        <Fragment>
          <Icon name="SortArrows" height="20" width="20" />
          <Icon name="Tick" fill="#0f0" viewBox="0 0 200 200" />
          <Icon name="Star" fill="transparent" stroke="#fff" strokeWidth="5" />
        </Fragment>
    );
}

Pro Tip: An SVG name suffixed with '.ios' or '.android' will automatically be rendered on the appropriate platform when passing the base name as the name prop.

{
    fill: '#000',
    fillRule: 'evenodd',
    height: '44',
    width: '44',
    viewBox: '0 0 100 100',
}

These can be overridden in your <Icon />'s defaultProps or an a per instance basis.

{
    defaultViewBox: string,
    fill: string.isRequired,
    fillRule: string,
    height: oneOfType([number, string]).isRequired,
    name: string.isRequired,
    stroke: string,
    strokeWidth: oneOfType([number, string]),
    style: oneOfType([array, object]),
    svgs: object.isRequired,
    width: oneOfType([number, string]).isRequired,
    viewBox: string,
}

The specificity order for viewBox is:

1. <Icon viewBox />
2. { Name: { viewBox: '' } }
3. Icon.defaultProps.defaultViewBox
4. SvgIcon.defaultProps.viewBox

Copyright (c) 2018 Matt Stow
Licensed under the MIT license (see LICENSE for details)