MUI Button hover 背景颜色和文字颜色

Question

I have created an Appbar component in React.js with 3 buttons in it but I would like to change the color when I hover over those buttons. The background color is #3c52b2 and the text color is #fff . I would like the background color and text color exchange when I hover over the button.

I've tried the code below but still not working.

Button: {
  '&:hover': {
    backgroundColor: '#ffffff',
    boxShadow: 'none',
  },
  '&:active': {
    boxShadow: 'none',
    backgroundColor: '#3c52b2',
  },
},

Answer 1

You probably don't want to change the button's :active state but the default and the :hover state. The following sets the button color to #fff and the backgroundColor to #3c52b2 and switch them on :hover .

I'm not sure how you applied the updated styles (or how you tried to override the default styles), I created this snippet below with makeStyles() but the idea is the same with the withStyles() HOC .

 const { AppBar, Button, makeStyles, Toolbar, Typography, } = MaterialUI const useStyles = makeStyles({ flexGrow: { flex: '1', }, button: { backgroundColor: '#3c52b2', color: '#fff', '&:hover': { backgroundColor: '#fff', color: '#3c52b2', }, }}) function AppBarWithButtons() { const classes = useStyles() return ( <AppBar> <Toolbar> <Typography> YourApp </Typography> <div className={classes.flexGrow} /> <Button className={classes.button}> Button 1 </Button> <Button className={classes.button}> Button 2 </Button> </Toolbar> </AppBar> ); }; ReactDOM.render( <React.StrictMode> <AppBarWithButtons /> </React.StrictMode>, document.getElementById("root") )

 <div id="root"></div> <script src="https://unpkg.com/react/umd/react.production.min.js"></script> <script src="https://unpkg.com/react-dom/umd/react-dom.production.min.js"></script> <script src="https://unpkg.com/@material-ui/core@latest/umd/material-ui.production.min.js"></script>

You could also just create a new styled button component :

const StyledButton = withStyles({
  root: {
    backgroundColor: '#3c52b2',
    color: '#fff',
    '&:hover': {
      backgroundColor: '#fff',
      color: '#3c52b2',
  },
}})(Button);

 const { AppBar, Button, Toolbar, Typography, withStyles } = MaterialUI const StyledButton = withStyles({ root: { backgroundColor: '#3c52b2', color: '#fff', '&:hover': { backgroundColor: '#fff', color: '#3c52b2', }, }})(Button); function AppBarWithButtons() { return ( <AppBar> <Toolbar> <Typography> YourApp </Typography> <div style={{flex: '1'}} /> <StyledButton> Button 1 </StyledButton> <StyledButton> Button 2 </StyledButton> </Toolbar> </AppBar> ); }; ReactDOM.render( <React.StrictMode> <AppBarWithButtons /> </React.StrictMode>, document.getElementById("root") )

 <div id="root"></div> <script src="https://unpkg.com/react/umd/react.production.min.js"></script> <script src="https://unpkg.com/react-dom/umd/react-dom.production.min.js"></script> <script src="https://unpkg.com/@material-ui/core@latest/umd/material-ui.production.min.js"></script>

Answer 2

You can do that in MUI v5 using sx prop :

<Button
  variant="text"
  sx={{
    ':hover': {
      bgcolor: 'primary.main', // theme.palette.primary.main
      color: 'white',
    },
  }}
>
  Text
</Button>

Or styled() if you want to create a reusable component:

const StyledButton = styled(Button)(({ theme, color = 'primary' }) => ({
  ':hover': {
    color: theme.palette[color].main,
    backgroundColor: 'white',
  },
}));

<StyledButton variant="contained" color="primary">
  Contained
</StyledButton>
<StyledButton variant="contained" color="secondary">
  Contained
</StyledButton>

Live Demo

Answer 3

If you want behaviour like default mui button - getting darker during hover, try this for mui theme:

import { darken } from '@material-ui/core/styles';

containedPrimary: {
    backgroundColor: someColor,
    '&:hover': {
        backgroundColor: darken(someColor, 0.3),
    },
},