我根据材料UI网站上给出的示例创建了一个带有菜单的应用栏,它在一个菜单上工作正常。但是当我尝试添加第二个下拉菜单时,单击任一图标时,我都会看到相同的一组菜单项,如图所示。
以下是单击任一图标时显示的菜单项列表
import React, { Component } from 'react';
// Material UI Imports
import { withStyles } from 'material-ui/styles';
import AppBar from 'material-ui/AppBar';
import Toolbar from 'material-ui/Toolbar';
import Typography from 'material-ui/Typography';
import Button from 'material-ui/Button';
import IconButton from 'material-ui/IconButton';
import Tooltip from 'material-ui/Tooltip';
import Menu, { MenuItem } from 'material-ui/Menu';
import PeopleIcon from 'material-ui-icons/People';
import ViewListIcon from 'material-ui-icons/ViewList';
import CompareArrowsIcon from 'material-ui-icons/CompareArrows';
const styles = {
root: {
width: '100%',
},
flex: {
flex: 1,
},
menuItem: {
paddingLeft: '10px'
}
}
class Header extends Component {
constructor(props) {
super(props);
this.state = { anchorEl: null };
}
handleMenu = event => {
console.log(event.currentTarget);
this.setState({ anchorEl: event.currentTarget });
}
handleClose = () => {
this.setState({ anchorEl: null });
}
render() {
const { classes } = this.props;
const { anchorEl } = this.state;
const open = Boolean(anchorEl);
return(
<div className={classes.root}>
<AppBar position="static">
<Toolbar>
<Typography type="title" color="inherit" className={classes.flex}>
New Faces
</Typography>
{/* Menu Item One */}
<div>
<Tooltip title="Lists" className={classes.menuItem}>
<IconButton
color="inherit"
aria-owns={open ? 'menu-list' : null}
aria-haspopup="true"
onClick={this.handleMenu}
>
<ViewListIcon />
</IconButton>
</Tooltip>
<Menu
id="menu-list"
anchorEl={anchorEl}
anchorOrigin={{
vertical: 'top',
horizontal:'right',
}}
transformOrigin={{
vertical: 'top',
horizontal:'right',
}}
open={open}
onClose={this.handleClose}
>
<MenuItem onClick={this.handleClose}>Create List</MenuItem>
<MenuItem onClick={this.handleClose}>List 1</MenuItem>
<MenuItem onClick={this.handleClose}>List 2</MenuItem>
</Menu>
</div>
{/* Menu Item Two */}
<div>
<Tooltip title="User Management" className={classes.menuItem}>
<IconButton
color="inherit"
aria-owns={open ? 'menu-appbar' : null}
aria-haspopup="true"
onClick={this.handleMenu}
>
<PeopleIcon />
</IconButton>
</Tooltip>
<Menu
id="menu-appbar"
anchorEl={anchorEl}
anchorOrigin={{
vertical: 'top',
horizontal:'right',
}}
transformOrigin={{
vertical: 'top',
horizontal:'right',
}}
open={open}
onClose={this.handleClose}
>
<MenuItem onClick={this.handleClose}>Profile</MenuItem>
<MenuItem onClick={this.handleClose}>User Management</MenuItem>
<MenuItem onClick={this.handleClose}>Logout</MenuItem>
</Menu>
</div>
</Toolbar>
</AppBar>
</div>
);
}
}
export default withStyles(styles)(Header);
如何根据单击的图标分配显示哪些菜单项?我假设它应该显示直接位于所选锚点下方的菜单项。任何帮助将不胜感激!
检查这个工作解决方案 https://codesandbox.io/s/84xl2v8wm2 我鞭打
我所做的是将公共代码提取到一个单独的组件中,让我们称之为 MenuButton 并在多个地方使用它。因此,每个菜单按钮都有自己的范围,自己的事件处理程序等。目前,问题是您对两个不同的元素使用相同的事件处理程序,并使用相同的变量来跟踪菜单的状态。要么使用两个变量,如 open 和 open1,要么像我所做的那样将代码提取到一个单独的组件中。
父文件
<MenuButton iconType={AccountCircle} items={['Create','List1', 'List2']}/>
<MenuButton iconType={MenuIcon} items={['Profile','User Management', 'Logout']}/>
菜单按钮.js文件
import React from 'react';
import AccountCircle from 'material-ui-icons/AccountCircle';
import Menu, { MenuItem } from 'material-ui/Menu';
import IconButton from 'material-ui/IconButton';
import { withStyles } from 'material-ui/styles';
class MenuButton extends React.Component {
state = {
anchorEl: null
};
handleChange = (event, checked) => {
this.setState({ auth: checked });
};
handleMenu = event => {
this.setState({ anchorEl: event.currentTarget });
};
handleClose = () => {
this.setState({ anchorEl: null });
};
render() {
const { classes } = this.props;
const { auth, anchorEl } = this.state;
const open = Boolean(anchorEl);
const Wrapper = this.props.iconType;
const listItems = this.props.items.map((link) =>
<MenuItem onClick={this.handleClose} >{link}</MenuItem>
);
return (
<div>
<IconButton
aria-owns={open ? 'menu-appbar' : null}
aria-haspopup="true"
onClick={this.handleMenu}
color="contrast"
>
{<Wrapper />}
</IconButton>
<Menu
id="menu-appbar"
anchorEl={anchorEl}
anchorOrigin={{
vertical: 'top',
horizontal: 'right',
}}
transformOrigin={{
vertical: 'top',
horizontal: 'right',
}}
open={open}
onClose={this.handleClose}
>
{listItems}
</Menu>
</div>
);
}
}
export default MenuButton;