我正在尝试使用react-i18next转换我的应用程序。我知道如何将其与简单的const组件一起使用,但不能在类中使用。
我正在使用I18nextProvider。这是我的App.js文件。
import React, { Component } from 'react';
import { Provider } from 'react-redux';
import { BrowserRouter } from 'react-router-dom';
import { I18nextProvider } from 'react-i18next';
import i18next from 'i18next';
// eslint-disable-next-line import/no-extraneous-dependencies
import { hot } from 'react-hot-loader';
import 'bootstrap/dist/css/bootstrap.css';
import '../../scss/app.scss';
import Router from './Router';
import store from './store';
import ScrollToTop from './ScrollToTop';
import { config as i18nextConfig } from '../../translations';
i18next.init(i18nextConfig);
class App extends Component {
constructor() {
super();
this.state = {
loading: true,
loaded: false,
};
}
componentDidMount() {
window.addEventListener('load', () => {
this.setState({ loading: false });
setTimeout(() => this.setState({ loaded: true }), 500);
});
}
render() {
const { loaded, loading } = this.state;
return (
<Provider store={store}>
<BrowserRouter basename="/easydev">
<I18nextProvider i18n={i18next}>
<ScrollToTop>
{!loaded &&
<div className={`load${loading ? '' : ' loaded'}`}>
<div className="load__icon-wrap">
<svg className="load__icon">
<path fill="#4ce1b6" d="M12,4V2A10,10 0 0,0 2,12H4A8,8 0 0,1 12,4Z" />
</svg>
</div>
</div>
}
<div>
<Router />
</div>
</ScrollToTop>
</I18nextProvider>
</BrowserRouter>
</Provider>
);
}
}
export default hot(module)(App);
现在在基于const的组件中使用它非常容易。这是一个示例:
import React from 'react';
import { Card, CardBody, Col } from 'reactstrap';
import HeartOutlineIcon from 'mdi-react/HeartOutlineIcon';
import { translate } from 'react-i18next';
import PropTypes from 'prop-types';
const InfoCard = ({ t }) => (
<Col md={12} xl={3} lg={6} sm={12} xs={12}>
<Card>
<CardBody className="dashboard__health-chart-card">
<div className="card__title">
<h5 className="bold-text">{t('dashboard_fitness.heartrate')}</h5>
</div>
<div className="dashboard__health-chart">
<div className="dashboard__health-chart-info">
<HeartOutlineIcon style={{ fill: '#ff4861' }} />
<p className="dashboard__health-chart-number">96</p>
<p className="dashboard__health-chart-units">b/min</p>
</div>
</div>
</CardBody>
</Card>
</Col>
);
InfoCard.propTypes = {
t: PropTypes.func.isRequired,
};
export default translate('common')(InfoCard);
如您所见,我只是从react-i18next导入翻译,而我几乎已经准备好使用t函数。
如何在类组件中实现相同的目的?我想在此类中实现它:
/* eslint-disable react/no-typos */
import React, { PureComponent } from 'react';
import { DropdownItem, DropdownMenu, DropdownToggle, UncontrolledDropdown } from 'reactstrap';
import { translate } from 'react-i18next';
import MenuDownIcon from 'mdi-react/ChevronDownIcon';
import MagnifyIcon from 'mdi-react/MagnifyIcon';
class TradesTableControls extends PureComponent {
constructor() {
super();
this.state = {
rows: 10,
};
}
changeRowAmount = (rows) => {
switch (rows) {
case 10:
this.setState({ rows: 10 });
break;
case 25:
this.setState({ rows: 25 });
break;
case 50:
this.setState({ rows: 50 });
break;
case 100:
this.setState({ rows: 100 });
break;
default:
this.setState({ rows: 10 });
break;
}
};
render() {
return (
<div className="trades-table__controls-wrap">
<div className="trades-table__controls">
<UncontrolledDropdown>
<DropdownToggle className="icon icon--right" outline size="sm">
<p>
{t('history.controls.show')}
{this.state.rows}
{t('history.controls.results')}
<MenuDownIcon />
</p>
</DropdownToggle>
<DropdownMenu className="dropdown__menu">
<DropdownItem onClick={() => this.changeRowAmount(10)}>10</DropdownItem>
<DropdownItem onClick={() => this.changeRowAmount(25)}>25</DropdownItem>
<DropdownItem onClick={() => this.changeRowAmount(50)}>50</DropdownItem>
<DropdownItem onClick={() => this.changeRowAmount(100)}>100</DropdownItem>
</DropdownMenu>
</UncontrolledDropdown>
</div>
<div className="trades-table__controls-right">
<div className="trades-table__control-search">
<input placeholder="Search" />
<div className="trades-table__control-search-icon"><MagnifyIcon /></div>
</div>
</div>
</div>
);
}
}
export default translate('common')(TradesTableControls);
我对React和ES6还是很陌生,但是我无法在线找到解决方案。非常感谢您的帮助!
谢谢!
答案 0 :(得分:7)
当前(即2020年),文档建议打包的HOC withTranslation()
:
import React from 'react';
import { withTranslation } from 'react-i18next';
class MyComponent extends Component {
return <p>{this.props.t('key')}</p>
}
export default withTranslation()(MyComponent);
如果您想使用命名空间,请导出:
export default withTranslation('namespace')(MyComponent);
参考:官方docs。
答案 1 :(得分:2)
就像t
在functional
组件中可以作为道具一样,您可以在将props
用TradesTableComponent
包装后,从类组件中的translate HOC
访问它。您所需要做的就是在诸如{p>
destructure
相关代码
const { t } = this.props;
答案 2 :(得分:2)
这是一个如何在React Native的基于类的组件中使用translation
的有效示例。
import { withTranslation } from 'react-i18next';
class PersonalScreen extends React.Component {
render() {
const { t } = this.props;
return (
<Text>{t('Translate this text')}</Text>
)
}
}
export default withTranslation()(PersonalScreen)
答案 3 :(得分:0)
这里是一个如何使用带有类定义https://gitlab.com/damjan89/i18next-typescript-example的i18next + React + Typescript的示例