How to use useStyle to style Class Component in Material Ui

Question

I want to use useStyle to style the Class Component . But this can be easily done hooks. but i want to use Component instead. But I cant figure out how to do this.

import React,{Component} from 'react';
import Avatar from '@material-ui/core/Avatar';
import { makeStyles } from '@material-ui/core/styles';
import LockOutlinedIcon from '@material-ui/icons/LockOutlined';


    const useStyles = makeStyles(theme => ({
      '@global': {
        body: {
          backgroundColor: theme.palette.common.white,
        },
      },
      paper: {
        marginTop: theme.spacing(8),
        display: 'flex',
        flexDirection: 'column',
        alignItems: 'center',
      },
      avatar: {
        margin: theme.spacing(1),
        backgroundColor: theme.palette.secondary.main,
      }
}));

class SignIn extends Component{
  const classes = useStyle(); // how to assign UseStyle
  render(){
     return(
    <div className={classes.paper}>
    <Avatar className={classes.avatar}>
      <LockOutlinedIcon />
    </Avatar>
    </div>
  }
}
export default SignIn;

Answer 1

You can do it like this:

import { withStyles } from "@material-ui/core/styles";

const styles = theme => ({
  root: {
    backgroundColor: "red"
  }
});

class ClassComponent extends Component {
  state = {
    searchNodes: ""
  };

  render() {
    const { classes } = this.props;
    return (
      <div className={classes.root}>Hello!</div>
    );
  }
}

export default withStyles(styles, { withTheme: true })(ClassComponent);

Just ignore the withTheme: true if you aren't using a theme.

---

To get this working in TypeScript, a few changes are needed:

import { createStyles, withStyles, WithStyles } from "@material-ui/core/styles";

const styles = theme => createStyles({
  root: {
    backgroundColor: "red"
  }
});

interface Props extends WithStyles<typeof styles>{ }

class ClassComponent extends Component<Props> {

// the rest of the code stays the same