无法使用 Material-UI Drawer 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。我想在页面底部制作一个常规的全角页脚。为了理解主题，我使用标准的“永久抽屉”，直接从Material-UI Drawer 借来。您也可以在 CodeSandbox here 中试用。无论我尝试在那里添加什么，我都无法让我的页脚出现。有一次我设法让它出现，但它仍然在抽屉下面，所以我只能在抽屉的右侧看到它的一部分。同样，我只需要一个基本的常规全角页脚。 这是您无法访问链接的代码。

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

您应该设置一个高于 .MuiDrawer-paper 的 z-index 的 z-index，即 1200。

在这里，我在classes 样式对象中添加了页脚类，如下所示：

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

然后将其分配给页脚元素：

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

sandbox