Javascript React JS/Material UI-从导入的组件调用方法
我试图从LoginModal.js调用handleLoginOpen方法,我在File1.js中导入了该方法。 File1实际上是一个嵌套在AppBar中的组件,在AppBar中我有一个帐户图标按钮,显示两个菜单项:Login或Register。如果我按login,我想用登录表单显示一个模式 以下是两个文件: File1.js:Javascript React JS/Material UI-从导入的组件调用方法,javascript,reactjs,Javascript,Reactjs,我试图从LoginModal.js调用handleLoginOpen方法,我在File1.js中导入了该方法。 File1实际上是一个嵌套在AppBar中的组件,在AppBar中我有一个帐户图标按钮,显示两个菜单项:Login或Register。如果我按login,我想用登录表单显示一个模式 以下是两个文件: File1.js: import React from "react"; import { IconButton, Menu, MenuItem } from &quo
import React from "react";
import { IconButton, Menu, MenuItem } from "@material-ui/core";
import AccountCircleIcon from "@material-ui/icons/AccountCircle";
import LoginModal from "../components/LoginModal";
export default function AccountNotRegistered() {
const [anchorEl, setAnchorEl] = React.useState(null);
const isMenuOpen = Boolean(anchorEl);
const handleProfileMenuOpen = (event) => {
setAnchorEl(event.currentTarget);
};
const handleProfileMenuClose = () => {
setAnchorEl(null);
};
const menuId = "account-menu";
const renderMenu = (
<Menu
anchorEl={anchorEl}
anchorOrigin={{ vertical: "top", horizontal: "right" }}
id={menuId}
keepMounted
transformOrigin={{ vertical: "top", horizontal: "right" }}
open={isMenuOpen}
onClose={handleProfileMenuClose}
>
<MenuItem onClick={handleLoginOpen}>Login</MenuItem> <------------------- HERE I CALL THE METHOD
<MenuItem onClick={handleProfileMenuClose}>Register</MenuItem>
</Menu>
);
return (
<div>
<IconButton color="inherit" onClick={handleProfileMenuOpen}>
<AccountCircleIcon />
</IconButton>
<LoginModal />
{renderMenu}
</div>
);
}
import React from "react";
import { makeStyles } from "@material-ui/core/styles";
import Modal from "@material-ui/core/Modal";
import { Backdrop } from "@material-ui/core";
import Fade from "@material-ui/core/Fade";
const useStyles = makeStyles((theme) => ({
modal: {
display: "flex",
alignItems: "center",
justifyContent: "center",
},
paper: {
backgroundColor: theme.palette.background.paper,
border: "2px solid #000",
boxShadow: theme.shadows[5],
padding: theme.spacing(2, 4, 3),
},
}));
export default function LoginModal() {
const classes = useStyles();
const [open, setOpen] = React.useState(false);
const handleLoginOpen = () => { <----------------------------------HERE IS THE METHOD
setOpen(true);
};
const handleLoginClose = () => {
setOpen(false);
};
return (
<Modal
aria-labelledby="transition-modal-title"
aria-describedby="transition-modal-description"
className={classes.modal}
open={open}
onClose={handleLoginClose}
closeAfterTransition
BackdropComponent={Backdrop}
BackdropProps={{
timeout: 500,
}}
>
<Fade in={open}>
<div className={classes.paper}>
<h2 id="transition-modal-title">Transition modal</h2>
<p id="transition-modal-description">
react-transition-group animates me.
</p>
</div>
</Fade>
</Modal>
);
}
从“React”导入React;
从“@material ui/core”导入{IconButton,Menu,MenuItem};
从“@material ui/icons/AccountCircle”导入AccountCircleIcon;
从“./components/LoginModal”导入LoginModal;
导出默认函数AccountNotRegistered(){
常量[anchorEl,setAnchorEl]=React.useState(null);
常量isMenuOpen=布尔值(Ancorel);
const handleProfileMenuOpen=(事件)=>{
Setancorel(事件当前目标);
};
const handleProfileMenuClose=()=>{
setAnchorEl(空);
};
const menuId=“帐户菜单”;
常数renderMenu=(
登录({
模态:{
显示:“flex”,
对齐项目:“中心”,
辩护内容:“中心”,
},
论文:{
背景色:theme.palete.background.paper,
边框:“2倍固体#000”,
boxShadow:theme.shadows[5],
填充:主题。间距(2,4,3),
},
}));
导出默认函数LoginModal(){
const classes=useStyles();
const[open,setOpen]=React.useState(false);
const handleLoginOpen=()=>{{
setOpen(假);
};
返回(
过渡模态
反应过渡组动画我。
);
}
感谢您的帮助!如果您想使用另一个组件的方法,您需要创建组件的父子关系,然后将这些方法作为道具传递给子组件 您应该在
File1.js中使用/call
,其中该LoginModel
将获取模态可见性的prop值,如isModalShown
,然后是关闭模态的函数,如closeModal
因此,当您调用组件时,它看起来像:
<LoginModal isModalShown={isModalShown} closeModal={closeModal} />
您需要在File1.js中维护state变量,因为显示/隐藏模式是在同一个文件中完成的
import React from "react";
import { IconButton, Menu, MenuItem } from "@material-ui/core";
import AccountCircleIcon from "@material-ui/icons/AccountCircle";
import LoginModal from "../components/LoginModal";
export default function AccountNotRegistered() {
const [anchorEl, setAnchorEl] = React.useState(null);
const [isModalShown, toggleModal] = React.useState(false);
const closeModal = () => toggleModal(false)
const openModal = () => toggleModal(false)
const isMenuOpen = Boolean(anchorEl);
const handleProfileMenuOpen = (event) => {
setAnchorEl(event.currentTarget);
};
const handleProfileMenuClose = () => {
setAnchorEl(null);
};
const menuId = "account-menu";
const renderMenu = (
<React.Fragment>
<Menu
anchorEl={anchorEl}
anchorOrigin={{ vertical: "top", horizontal: "right" }}
id={menuId}
keepMounted
transformOrigin={{ vertical: "top", horizontal: "right" }}
open={isMenuOpen}
onClose={handleProfileMenuClose}>
<MenuItem onClick={openModal}>Login</MenuItem>
<MenuItem onClick={handleProfileMenuClose}>Register</MenuItem>
</Menu>
</React.Fragment>
);
return (
<div>
<IconButton color="inherit" onClick={handleProfileMenuOpen}>
<AccountCircleIcon />
</IconButton>
<LoginModal isModalShown={isModalShown} closeModal={closeModal} />
{renderMenu}
</div>
);
}
从“React”导入React;
从“@material ui/core”导入{IconButton,Menu,MenuItem};
从“@material ui/icons/AccountCircle”导入AccountCircleIcon;
从“./components/LoginModal”导入LoginModal;
导出默认函数AccountNotRegistered(){
常量[anchorEl,setAnchorEl]=React.useState(null);
常量[isModalShown,toggleModal]=React.useState(false);
const closeModal=()=>toggleModal(false)
常量openModal=()=>toggleModal(false)
常量isMenuOpen=布尔值(Ancorel);
const handleProfileMenuOpen=(事件)=>{
Setancorel(事件当前目标);
};
const handleProfileMenuClose=()=>{
setAnchorEl(空);
};
const menuId=“帐户菜单”;
常数renderMenu=(
登录
登记
);
返回(
{renderMenu}
);
}
然后在LoginModal.js中
export default function LoginModal(props) {
const classes = useStyles();
return (
<Modal
aria-labelledby="transition-modal-title"
aria-describedby="transition-modal-description"
className={classes.modal}
open={props.isModalShown}
onClose={props.closeModal}
closeAfterTransition
BackdropComponent={Backdrop}
BackdropProps={{
timeout: 500,
}}
>
<Fade in={open}>
<div className={classes.paper}>
<h2 id="transition-modal-title">Transition modal</h2>
<p id="transition-modal-description">
react-transition-group animates me.
</p>
</div>
</Fade>
</Modal>
);
}
导出默认函数LoginModal(props){
const classes=useStyles();
返回(
过渡模态
反应过渡组动画我。
);
}
我相信您也希望在单击Register时显示模式,您可以为这个模式组件创建一个包装器,然后将自定义道具传递给它,它将负责呈现
或