How to make a loading button in MUI? - reactjs

Question

I am using react with MUI framework and I was wondering how can I create an loading button using this framework?
I am looking for something similar to this.

Answer 1

To the best of my knowledge, there is no single component that accomplishes this out of the box in material-ui. However, you can implement your own easily using CircularProgress.
Assuming you are using material-ui v1, here's a rough example. First, I create a LoadingButton that accepts a loading prop - if that prop is true, I display a CircularProgress indicator. It also accepts a done prop - if that's true, the button clears the progress indicator and becomes a checkmark to show success.
import React from 'react';
import PropTypes from 'prop-types';
import { withStyles } from 'material-ui/styles';
import Button from 'material-ui/Button';
import { CircularProgress } from 'material-ui/Progress';
import Check from 'material-ui-icons/Check';
const styles = theme => ({
button: {
margin: theme.spacing.unit,
},
});
const LoadingButton = (props) => {
const { classes, loading, done, ...other } = props;
if (done) {
return (
<Button className={classes.button} {...other} disabled>
<Check />
</Button>
);
}
else if (loading) {
return (
<Button className={classes.button} {...other}>
<CircularProgress />
</Button>
);
} else {
return (
<Button className={classes.button} {...other} />
);
}
}
LoadingButton.defaultProps = {
loading: false,
done: false,
};
LoadingButton.propTypes = {
classes: PropTypes.object.isRequired,
loading: PropTypes.bool,
done: PropTypes.bool,
};
export default withStyles(styles)(LoadingButton);
You can use the LoadingButton as shown in the following example, which uses state to set the appropriate prop on the button.
import React from 'react';
import LoadingButton from './LoadingButton';
class ControlledButton extends React.Component {
constructor(props) {
super(props);
this.state = { loading: false, finished: false };
}
render() {
const { loading, finished } = this.state;
const setLoading = !finished && loading;
return (
<div>
<LoadingButton
loading={setLoading}
done={finished}
onClick={() => {
// Clicked, so show the progress dialog
this.setState({ loading: true });
// In a 1.5 seconds, end the progress to show that it's done
setTimeout(() => { this.setState({ finished: true })}, 1500);
}}
>
Click Me
</LoadingButton>
</div>
);
}
}
export default ControlledButton;
You can of course tweak the styling and functionality to meet your exact needs.

Answer 2

In the newer versions of MUI, you can use LoadingButton component, it's currently in the lab package. This is just a wrapper of the Button with a loading prop. You can customize the loadingIndicator component and its position. See the example below:
import LoadingButton from '#mui/lab/LoadingButton';
<LoadingButton loading={loading}>
Text
</LoadingButton>
<LoadingButton
endIcon={<SendIcon />}
loading={loading}
loadingPosition="end"
variant="contained"
>
Send
</LoadingButton>