props-dependent Switch color in Material-UI

Question

The following code, adapted from Material-UI docs for customizing Switch allows to set the switch color to blue:

import React from 'react'

import Switch from '@material-ui/core/Switch'
import {withStyles} from '@material-ui/core/styles'


const ColoredSwitch = withStyles({
  switchBase: {
    '&$checked': {
      color: 'blue',
    },
  },
  checked: {},
  track: {},
})(Switch)

But when trying to adapt it so that the color can be set by component properties, it just doesn't work. Event the following code (which is only pseudo-dynamic) renders to a default switch:

const ColoredSwitch = withStyles({
  switchBase: {
    '&$checked': {
      color: props => 'blue',
    },
  },
  checked: {},
  track: {},
})(Switch)

I guess I must be doing something wrong but can't figure out what.

Answer 1

Follow this example for passing props if you must use withStyles HOC: https://material-ui.com/styles/basics/#adapting-the-higher-order-component-api

const ColoredSwitch = withStyles({
  switchBase: {
    "&.Mui-checked": {
      color: (props) => props.customchecked
    }
  },
  checked: {},
  track: {}
})((props) => {
  const { classes, ...other } = props;
  return <Switch classes={{ switchBase: classes.switchBase }} {...other} />;
});

---

You can also use makeStyles

const useStyles = makeStyles({
  switchBaseChecked: {
    "&.Mui-checked": {
      color: (props) => props.color
    }
  }
});

export default function Switches() {
  const props = { color: "green" };
  const classes = useStyles(props);
  return (
    <Switch
      color="primary"
      classes={{
        checked: classes.switchBaseChecked
      }}
    />
  );
}