ios - 有没有一种方法可以使用 React-Intl 正确格式化，而不会出现此错误？

Question

我正在开发一个 React Native 应用程序，我需要 post_date我从第三方 API 返回的信息不显示为: 2019-05-10 11:26:39 ，而是显示:x many days ago .

我尝试安装 React-Intl，然后在 App.js 中实现它像这样:

import React from "react";
import { StyleSheet, Text, View } from "react-native";
import {
  createBottomTabNavigator,
  createStackNavigator,
  createAppContainer
} from "react-navigation";
import { Provider } from "react-redux";
import { IntlProvider } from "react-intl";
import store from "./store";
import AuthScreen from "./screens/AuthScreen";
import WelcomeScreen from "./screens/WelcomeScreen";
import MapScreen from "./screens/MapScreen";
import DeckScreen from "./screens/DeckScreen";
import SettingsScreen from "./screens/SettingsScreen";
import ReviewScreen from "./screens/ReviewScreen";

const MainNavigator = createAppContainer(
  createBottomTabNavigator({
    welcome: WelcomeScreen,
    auth: AuthScreen,
    main: {
      screen: createBottomTabNavigator({
        map: MapScreen,
        deck: DeckScreen,
        review: {
          screen: createStackNavigator({
            review: ReviewScreen,
            settings: SettingsScreen
          })
        }
      })
    }
  })
);

export default class App extends React.Component {
  render() {
    return (
      <Provider store={store}>
        <View style={styles.container}>
          <IntlProvider locale="en">
            <MainNavigator />
          </IntlProvider>
        </View>
      </Provider>
    );
  }
}

在我的 DeckScreen.js 中像这样:

import React, { Component } from "react";
import { View, Text, Platform } from "react-native";
import { MapView } from "expo";
import { connect } from "react-redux";
import { Card, Button } from "react-native-elements";
// import Moment from "react-moment";
import { FormattedRelative } from "react-intl";
import Swipe from "../components/Swipe";
import * as actions from "../actions";

class DeckScreen extends Component {
  renderCard(job) {
    return (
      <Card title={job.title}>
        <View style={{ height: 300 }}>
          <MapView
            scrollEnabled={false}
            style={{ flex: 1 }}
            cacheEnabled={Platform.OS === "android" ? true : false}
          />
        </View>
        <View style={styles.detailWrapper}>
          <Text>{job.company.id}</Text>
          <FormattedRelative value={job.post_date.toString()} />
        </View>
        <Text>
          {job.description.replace(/<span>/g, "").replace(/<\/span>/g, "")}
        </Text>
      </Card>
    );
  }

我觉得用 React-Intl 比用 Momentjs 更接近我想要的东西，但我收到了这个错误:

console.error: "[React Intl] Error formatting relative time. RangeError: The date value provided to IntlRelativeFormat#format() is not in valid range."

我的代码格式不正确吗？任何人都有如何实现的经验FormattedRelative来自 React-Intl？

我知道我可以使用toDateString()删除时间戳部分 2019-05-10 11:26:39但是当我尝试通过 <FormattedRelative value={job.post_date.toDateString()} /> 实现它时，我继续收到相同的错误消息。

Answer 1

您应该将日期格式转换为适当的毫秒并传递到 FormattedRelative 值属性中。

// convert 2019-05-10 11:26:39. date to millisecond, for example see below code.

 var postDate    = Date.now() - (1000 * 60 * 60 * 24); 
 <ul>
     <li><FormattedRelative value={postDate} /></li>
</ul>

输出:

yesterday