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reactjs - 默认的“inset”属性填充。ListItemText 组件

问题描述

我正在使用 material-ui 在 React 应用程序中设置嵌套列表的样式。默认的“插入”属性填充很大（56px），所以我试图覆盖该默认值。但我不能。有什么建议么？谢谢 ！！

     <Fragment>
        <ListItem button onClick={this.handleClick}>
          <ListItemText
            primary="Zones"            
            primaryTypographyProps={{ variant: 'subtitle2' }}
        />
          {this.state.open ? <ExpandLess /> : <ExpandMore />}
        </ListItem>
        <Collapse in={this.state.open} timeout="auto" unmountOnExit>
          <List component="div" disablePadding>
            <ListItem button             
              component={Link}
              to={`${this.props.match.url}/zone/all-zones`}
              onClick={THIS.handleMenuOpen}
            >
              <ListItemText
                inset                
                primary="Show all"
                primaryTypographyProps={{ variant: 'subtitle2' }}
              />
            </ListItem>
          </List>
        </Collapse>
      </Fragment>

标签： reactjsmaterial-ui

解决方案

inset prop on的目的ListItemText是将没有图标的项目的文本与有图标的项目的文本对齐（参见Inset List 演示）。它不适用于缩进嵌套列表项。

如果您查看嵌套列表演示，您会发现缩进是通过paddingLeft应用于嵌套列表项来完成的。在演示中，它设置为 32px ( theme.spacing(4))，但您可以将其设置为您想要的任何值。

这是嵌套列表演示的代码：

import React from "react";
import { makeStyles } from "@material-ui/core/styles";
import ListSubheader from "@material-ui/core/ListSubheader";
import List from "@material-ui/core/List";
import ListItem from "@material-ui/core/ListItem";
import ListItemIcon from "@material-ui/core/ListItemIcon";
import ListItemText from "@material-ui/core/ListItemText";
import Collapse from "@material-ui/core/Collapse";
import InboxIcon from "@material-ui/icons/MoveToInbox";
import DraftsIcon from "@material-ui/icons/Drafts";
import SendIcon from "@material-ui/icons/Send";
import ExpandLess from "@material-ui/icons/ExpandLess";
import ExpandMore from "@material-ui/icons/ExpandMore";
import StarBorder from "@material-ui/icons/StarBorder";

const useStyles = makeStyles(theme => ({
  root: {
    width: "100%",
    maxWidth: 360,
    backgroundColor: theme.palette.background.paper
  },
  nested: {
    paddingLeft: theme.spacing(4)
  }
}));

export default function NestedList() {
  const classes = useStyles();
  const [open, setOpen] = React.useState(true);

  const handleClick = () => {
    setOpen(!open);
  };

  return (
    <List
      component="nav"
      aria-labelledby="nested-list-subheader"
      subheader={
        <ListSubheader component="div" id="nested-list-subheader">
          Nested List Items
        </ListSubheader>
      }
      className={classes.root}
    >
      <ListItem button>
        <ListItemIcon>
          <SendIcon />
        </ListItemIcon>
        <ListItemText primary="Sent mail" />
      </ListItem>
      <ListItem button>
        <ListItemIcon>
          <DraftsIcon />
        </ListItemIcon>
        <ListItemText primary="Drafts" />
      </ListItem>
      <ListItem button onClick={handleClick}>
        <ListItemIcon>
          <InboxIcon />
        </ListItemIcon>
        <ListItemText primary="Inbox" />
        {open ? <ExpandLess /> : <ExpandMore />}
      </ListItem>
      <Collapse in={open} timeout="auto" unmountOnExit>
        <List component="div" disablePadding>
          <ListItem button className={classes.nested}>
            <ListItemIcon>
              <StarBorder />
            </ListItemIcon>
            <ListItemText primary="Starred" />
          </ListItem>
        </List>
      </Collapse>
    </List>
  );
}

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