Multi Language

1. Add content

                        
// ----------------------------------------------------
// File: src/utils/languages/ar.json  
// ----------------------------------------------------  

{
  "Dashboard": "لوحة القيادة",
  "Dashboard 2": "لوحة القيادة 2",
}



// ----------------------------------------------------
// File: src/utils/languages/en.json  
// ----------------------------------------------------  

{
  "Dashboard": "Dashboard",
  "Dashboard 2": "Dashboard 2",
}



// ----------------------------------------------------
// File: src/utils/languages/ch.json  
// ----------------------------------------------------  

{
  "Dashboard": "仪表板",
  "Dashboard 2": "仪表板 2",
}



// ----------------------------------------------------
// File: src/utils/languages/fr.json  
// ---------------------------------------------------- 

{
  "Dashboard": "Tableau de bord",
  "Dashboard 2": "Tableau de bord 2",
}

2. Usage

  
// ----------------------------------------------------
// File: src/(DashboardLayout)/layout/vertical/header/Language.tsx
// ---------------------------------------------------- 

import React from 'react';
import { Avatar, IconButton, Menu, MenuItem, Typography } from '@mui/material';
import { useSelector, useDispatch } from 'src/store/Store';
import { setLanguage } from 'src/store/customizer/CustomizerSlice';
import FlagEn from 'src/assets/images/flag/icon-flag-en.svg';
import FlagFr from 'src/assets/images/flag/icon-flag-fr.svg';
import FlagCn from 'src/assets/images/flag/icon-flag-cn.svg';
import FlagSa from 'src/assets/images/flag/icon-flag-sa.svg';
import { Stack } from '@mui/system';
import { useTranslation } from 'react-i18next';
import { useEffect } from 'react';
import { AppState } from 'src/store/Store';

const Languages = [
    {
        flagname: 'English (UK)',
        icon: FlagEn,
        value: 'en',
    },
    {
        flagname: '中国人 (Chinese)',
        icon: FlagCn,
        value: 'ch',
    },
    {
        flagname: 'français (French)',
        icon: FlagFr,
        value: 'fr',
    },
    
    {
        flagname: 'عربي (Arabic)',
        icon: FlagSa,
        value: 'ar',
    },
];
    
const Language = () => {
    const [anchorEl, setAnchorEl] = React.useState(null);
    const dispatch = useDispatch();
    const open = Boolean(anchorEl);
    const customizer = useSelector((state: AppState) => state.customizer);
    const currentLang =
    Languages.find((_lang) => _lang.value === customizer.isLanguage) || Languages[1];
    const { i18n } = useTranslation();
    const handleClick = (event: any) => {
    setAnchorEl(event.currentTarget);
    };
    const handleClose = () => {
    setAnchorEl(null);
    };
    useEffect(() => {
    i18n.changeLanguage(customizer.isLanguage);
    // eslint-disable-next-line react-hooks/exhaustive-deps
}, []);
    
return (
<>
    <IconButton
        aria-label="more"
        id="long-button"
        aria-controls={open ? 'long-menu' : undefined}
        aria-expanded={open ? 'true' : undefined}
        aria-haspopup="true"
        onClick={handleClick}
        >
        <Avatar src={currentLang.icon} alt={currentLang.value} sx={{ width: 20, height: 20 }} />
        </IconButton>
        <Menu
        id="long-menu"
        anchorEl={anchorEl}
        open={open}
        onClose={handleClose}
        sx={{
            '& .MuiMenu-paper': {
            width: '200px',
            },
        }}
        >
        {Languages.map((option, index) => (
            <MenuItem
            key={index}
            sx={{ py: 2, px: 3 }}
            onClick={() => dispatch(setLanguage(option.value))}
            >
            <Stack direction="row" spacing={1} alignItems="center">
            <Avatar src={option.icon} alt={option.icon} sx={{ width: 20, height: 20 }} /<
                <Typography> {option.flagname}</Typography>
                </Stack>
    
            ))}
        </Menu>
    </>
);
    
export default Language;