无法使用材质 UI 抽屉为页面创建页脚

Question

所以，有一个类似的问题，但这不是我需要的。我想在页面底部做一个常规的全宽页脚。为了理解这个主题，我使用了标准的"永久抽屉"，直接借用了Material-UI Drawer。你也可以在这里的CodeSandbox中尝试一下。无论我想在那里添加什么，我都无法使我的页脚出现。有一次我设法让它出现，但它仍然在抽屉下面，所以我只能看到抽屉右边的一部分。同样，我只需要一个基本的常规全宽页脚。以下是代码，以防您无法访问链接。

const drawerWidth = 240;
const useStyles = makeStyles((theme: Theme) =>
createStyles({
root: {
display: 'flex',
},
appBar: {
width: `calc(100% - ${drawerWidth}px)`,
marginLeft: drawerWidth,
},
drawer: {
width: drawerWidth,
flexShrink: 0,
},
drawerPaper: {
width: drawerWidth,
},
// necessary for content to be below app bar
toolbar: theme.mixins.toolbar,
content: {
flexGrow: 1,
backgroundColor: theme.palette.background.default,
padding: theme.spacing(3),
},
}),
);
export default function PermanentDrawerLeft() {
const classes = useStyles();
return (
<div className={classes.root}>
<CssBaseline />
<AppBar position="fixed" className={classes.appBar}>
<Toolbar>
<Typography variant="h6" noWrap>
Permanent drawer
</Typography>
</Toolbar>
</AppBar>
<Drawer
className={classes.drawer}
variant="permanent"
classes={{
paper: classes.drawerPaper,
}}
anchor="left"
>
<div className={classes.toolbar} />
<Divider />
<List>
{['Inbox', 'Starred', 'Send email', 'Drafts'].map((text, index) => (
<ListItem button key={text}>
<ListItemIcon>{index % 2 === 0 ? <InboxIcon /> : <MailIcon />}</ListItemIcon>
<ListItemText primary={text} />
</ListItem>
))}
</List>
<Divider />
<List>
{['All mail', 'Trash', 'Spam'].map((text, index) => (
<ListItem button key={text}>
<ListItemIcon>{index % 2 === 0 ? <InboxIcon /> : <MailIcon />}</ListItemIcon>
<ListItemText primary={text} />
</ListItem>
))}
</List>
</Drawer>
<main className={classes.content}>
<div className={classes.toolbar} />
<Typography paragraph>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt
ut labore et dolore magna aliqua. Rhoncus dolor purus non enim praesent elementum
facilisis leo vel. Risus at ultrices mi tempus imperdiet. Semper risus in hendrerit
gravida rutrum quisque non tellus. Convallis convallis tellus id interdum velit laoreet id
donec ultrices. Odio morbi quis commodo odio aenean sed adipiscing. Amet nisl suscipit
adipiscing bibendum est ultricies integer quis. Cursus euismod quis viverra nibh cras.
Metus vulputate eu scelerisque felis imperdiet proin fermentum leo. Mauris commodo quis
imperdiet massa tincidunt. Cras tincidunt lobortis feugiat vivamus at augue. At augue eget
arcu dictum varius duis at consectetur lorem. Velit sed ullamcorper morbi tincidunt. Lorem
donec massa sapien faucibus et molestie ac.
</Typography>
<Typography paragraph>
Consequat mauris nunc congue nisi vitae suscipit. Fringilla est ullamcorper eget nulla
facilisi etiam dignissim diam. Pulvinar elementum integer enim neque volutpat ac
tincidunt. Ornare suspendisse sed nisi lacus sed viverra tellus. Purus sit amet volutpat
consequat mauris. Elementum eu facilisis sed odio morbi. Euismod lacinia at quis risus sed
vulputate odio. Morbi tincidunt ornare massa eget egestas purus viverra accumsan in. In
hendrerit gravida rutrum quisque non tellus orci ac. Pellentesque nec nam aliquam sem et
tortor. Habitant morbi tristique senectus et. Adipiscing elit duis tristique sollicitudin
nibh sit. Ornare aenean euismod elementum nisi quis eleifend. Commodo viverra maecenas
accumsan lacus vel facilisis. Nulla posuere sollicitudin aliquam ultrices sagittis orci a.
</Typography>
</main>
</div>
);
}

Answer 1

您应该传递一个高于.MuiDrawer-paper的z-index(1200)的z-index。

这里我添加了一个footer类到classes样式对象，如下所示:

footer: {
position: "fixed",
left: "0",
bottom: "0",
width: "100%",
backgroundColor: "red",
color: "white",
zIndex: "1201",
textAlign: "center"
}

然后赋值给footer元素:

<div className={classes.footer}>footer</div>

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