How to use an SVG file in a SvgIcon in Material-UI

问题

I've got an SVG file and I want to make an SvgIcon component out of it, how should I do that?

In the documentation, all the examples use either predefined Material Icons or a strange notation of <path d="M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z" /> which I have no idea what it is!

回答1:

<path /> is an SVG path, i.e. the internal bits of the SVG. the SvgIcon component really should be able to take a path, but it doesn't :(

instead you can create a component like https://github.com/callemall/material-ui/blob/56c113217d7d05d8bb0712771b727df81984d04b/src/svg-icons/action/home.js

with your svg source in place of the path. (I recommend minifying it a bit using https://jakearchibald.github.io/svgomg/)

回答2:

To use a SVG file as an icon, I used the <Icon/> component with an <img/> element inside, setting the height: 100% to the img element and textAlign: center to the root class of the <Icon/> component did the trick:

JSX:

import Icon from '@material-ui/core/Icon';
import { makeStyles } from '@material-ui/styles';
...

<Icon classes={{root: classes.iconRoot}}>
  <img className={classes.imageIcon} src="/graphics/firebase-logo.svg"/>
</Icon>

Styles:

const useStyles = makeStyles({
  imageIcon: {
    height: '100%'
  },
  iconRoot: {
    textAlign: 'center'
  }
});

Result:

回答3:

To obtain the path for SvgIcon, open svg file with the text editor and copy the corresponding path expression.

回答4:

The solution that worked for me is the following

 import React from 'react';
 import pure from 'recompose/pure';
 import {SvgIcon} from '@material-ui/core';

 let smile = (props) => (
   <SvgIcon {...props} >
<path d="M256,32C132.281,32,32,132.281,32,256s100.281,224,224,224s224-100.281,224-224S379.719,32,256,32z M256,448
c-105.875,0-192-86.125-192-192S150.125,64,256,64s192,86.125,192,192S361.875,448,256,448z M160,192c0-26.5,14.313-48,32-48
s32,21.5,32,48c0,26.531-14.313,48-32,48S160,218.531,160,192z M288,192c0-26.5,14.313-48,32-48s32,21.5,32,48
c0,26.531-14.313,48-32,48S288,218.531,288,192z M384,288c-16.594,56.875-68.75,96-128,96c-59.266,0-111.406-39.125-128-96"/>
   </SvgIcon>
 );

 smile = pure(smile);
 smile.displayName = 'smile';     
 smile.muiName = 'SvgIcon';

 export default smile;

Check this example of material ui icon

回答5:

If making more than one icon, you may not want to repeat all the boilerplate in the example referenced in the accepted answer. You can use a wrapper component generator like:

const wrapSvgPath = (path, viewBox='0 0 24 24') => (props) => (
    <SvgIcon {...props} viewBox={viewBox}>{path}</SvgIcon>
)

used like:

const facebookPath = (<path
        d="M17,2V2H17V6H15C14.31,6 14,6.81 14,7.5V10H14L17,10V14H14V22H10V14H7V10H10V6A4,4 0 0,1 14,2H17Z" />
)
export const FacebookIcon = wrapSvgPath(facebookPath)

来源：https://stackoverflow.com/questions/38510443/how-to-use-an-svg-file-in-a-svgicon-in-material-ui

标签

svg

material-ui