How to enhance and expand Material-UI components

I am trying to enhance the Tab component using ES6 class in this way:

import React from "react";

import {Tab} from "material-ui";

class CustomTab extends Tab {
    constructor(props){
        super(props);
    }

    render(){
        return super.render();
    }

}

export default CustomTab;

However, I keep encountering an error:

Uncaught TypeError: Cannot read property 'muiTheme' of undefined

What could be causing this issue?

Answer №1

To properly enhance an MUI component, it is recommended to utilize their withStyles() method as outlined in the higher-order component Design Approach

import React, { Component } from "react";
import Tab from "@material-ui/core/Tab";
import { withStyles } from "@material-ui/core/styles";

const styles = theme => {
  return ({
      myTab: {
        fontFamily: 'Courier New',
    });
}

class MyTab extends Component {

  render() {
    return (
      const {classes, ...other} = this.props
      <Tab {...other} className={classes.myTab} label="Home" />
   }
}

export default withStyles(styles)(MyTab); 

Answer №2

To make it work in ES6, you may need to include a 'getInitialState' function for now. Even though errors might occur, just add the function.

import ThemeManager from 'material-ui/lib/styles/theme-manager';
import LightTheme from 'material-ui/lib/styles/raw-themes/light-raw-theme';

getInitialState() {
    return this.state;
}

In addition, I initialized the state within the constructor as per ES6 React standards.

this.state = {muiThem : ThemeManager.getMuiTheme(LightTheme),};

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