如果您从 root 中删除所有内容,它就会起作用:
ReactDOM.render(<TodoApp />, document.getElementById('root'));
但现在我们像这样更改 TodoApp 组件:
1)我们添加“locale”作为组件状态并导入 React-Intl:
import { IntlProvider, addLocaleData } from 'react-intl';
import intlEN from 'react-intl/locale-data/en';
import intlES from 'react-intl/locale-data/es';
import intlMessagesES from './../i18n/locales/es.json';
import intlMessagesEN from './../i18n/locales/en.json';
addLocaleData([...intlEN, ...intlES]);
/* Define your default translations */
let i18nConfig = {
locale: 'en',
messages: intlMessagesEN
};
2)更改我们的changeLanguage函数(这次称为“onChangeLanguage”),该函数从子组件语言选择器接收“lang”:
onChangeLanguage(lang) {
switch (lang) {
case 'ES': i18nConfig.messages = intlMessagesES; break;
case 'EN': i18nConfig.messages = intlMessagesEN; break;
default: i18nConfig.messages = intlMessagesEN; break;
}
this.setState({ locale: lang });
i18nConfig.locale = lang;
}
最后渲染:
render() {
return (
<IntlProvider key={ i18nConfig.locale } locale={ i18nConfig.locale } messages={ i18nConfig.messages }>
<div>
<Header onChangeLanguage={this.onChangeLanguage} />
// Other components ...
</div>
</IntlProvider>
);
}
如果有人根本不明白,请在评论中提问!感谢@TomásEhrich