Material ui 全局消息组件
作者:互联网
文章目录
前言
学习material ui系列,解决全局组件问题
一、为什么需要全局组件
异常全局提示,操作成功提醒等,需要一个函数直接渲染,而不是通过当前组件的状态来管理组件。
二、自定义全局组件
1.定义消息提示组件
从material ui的文档来看,官方推荐使用Snackbar组件,代码如下(GlobalSnackbars.js)(示例):
import React, {Fragment, useEffect, useState} from 'react';
import {Snackbar} from '@material-ui/core';
import {Alert as MuiAlert, AlertTitle} from '@material-ui/lab';
import message from "../util/message";
const GlobalSnackbars = () => {
const [isOpen, setOpen] = useState(false);
const [severity, setSeverity] = useState("info");
const [content, setContent] = useState("");
const handleClose = (_, reason) => {
if(reason === 'clickaway'){
return;
}
this.setState({
isOpen: false
})
};
return (
<Fragment>
<Snackbar open={isOpen} autoHideDuration={2000} onClose={handleClose}>
<MuiAlert elevation={6} variant={"filled"} onClose={handleClose} severity={severity}>
<AlertTitle>{severity.toLocaleUpperCase()}</AlertTitle>
{content}
</MuiAlert>
</Snackbar>
</Fragment>
)
}
export default GlobalSnackbars;
2.设计函数
这里采用静态方法,模仿antd的消息提示接口。代码如下(message.js)(示例):
export default class message {
static info = (msg) => {}
static warn = (msg) => {}
static success = (msg) => {}
static error = (msg) => {}
}
3.通过函数改变全局组件状态
在GlobalSnackbars组件中添加useEffect副作用,通过步骤2的静态函数,来改变Snackbar状态。添加代码如下(GlobalSnackbars.js)(示例):
useEffect(() => {
message.info = (msg) => {
setOpen(true);
setSeverity("info");
setContent(msg);
};
message.warn = (msg) => {
setOpen(true);
setSeverity("warn");
setContent(msg);
};
message.success = (msg) => {
setOpen(true);
setSeverity("success");
setContent(msg);
};
message.error = (msg) => {
setOpen(true);
setSeverity("error");
setContent(msg);
};
}, [])
总结
通过静态函数来启动一些组件,也是自定义组件的一种方式
标签:Material,setContent,msg,ui,组件,message,全局,setOpen 来源: https://blog.csdn.net/m0_37929246/article/details/112687407