android - 路线“EnableNotification”应声明一个屏幕

我正在处理react-native并尝试集成react-navigationhttps://reactnavigation.org/docs/intro/以进行导航。我在执行过程中遇到了一些困难。
index.android.js索引

**
 * https://github.com/facebook/react-native
 * @flow
 */

import React, { Component } from "react";
import {
  AppRegistry,
  Image,
  View,
  Text,
  Button,
  StyleSheet
} from "react-native";
import { StackNavigator } from "react-navigation";
import EnableNotificationScreen from "./EnableNotification";

class SplashScreen extends Component {
  render() {
    console.disableYellowBox = true;
    const { navigate } = this.props.navigation;
    return (
      <View style={styles.container}>
        <Image source={require("./img/talk_people.png")} />
        <Text style={{ fontSize: 22, textAlign: "center" }}>
          Never forget to stay in touch with the people that matter to you.
        </Text>
        <View style={{ width: 240, marginTop: 30 }}>
          <Button
            title="CONTINUE"
            color="#FE434C"
            onPress={() => navigate("EnableNotification")}
          />
        </View>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    backgroundColor: "#FFFFFF",
    alignItems: "center",
    justifyContent: "center",
    padding: 16,
    flex: 1,
    flexDirection: "column"
  }
});

const ScheduledApp = StackNavigator(
  {
    Splash: { screen: SplashScreen },
    EnableNotification: { screen: EnableNotificationScreen }
  },
  {
    initialRouteName: "Splash"
  }
);

AppRegistry.registerComponent("Scheduled", () => ScheduledApp);

启用通知.js

/**
 * https://github.com/facebook/react-native
 * @flow
 */

import React, { Component } from "react";
import { View, Text } from "react-native";

export class EnableNotification extends Component {
  render() {
    return <View><Text>Enable Notification</Text></View>;
  }
}

最佳答案

在您的EnableNotification.js中，您无需默认即可导出EnableNotification类（这是一个命名导出）。
然后在import EnableNotificationScreen from "./EnableNotification"中使用index.android.js导入它，这会导致错误。
你应该
a）导出默认的激活屏幕ieexport default class EnableNotification extends Component或
b）更改为import { EnableNotification } from "./EnableNotification"
阅读有关导出类型的更多信息here