react-native - 收到此错误 : error: bundling failed: Error: Unable to resolve module `react-native-safe-area-context`

Question

运行我的应用程序后出现此错误:

error: bundling failed: Error: Unable to resolve module react-native-safe-area-context from node_modules/react-navigation-stack/lib/module/vendor/views/Stack/StackView.js: react-native-safe-area-context could not be found within the project.

但是我为我的旧演示所做的同样的事情。它工作得很好。
我不知道我在这里做错了什么。请检查我的代码:
安装:

react 原生导航和手势处理程序:

npm install --save react-navigation npm install --save react-native-gesture-handler

react 原生堆栈:

npm install --save react-navigation-stack App.js

import { createAppContainer } from "react-navigation";
import { createStackNavigator } from "react-navigation-stack";
import FirstOptionsPage from "./FirstOptionsPage";

const MainNavigator = createStackNavigator(
  {
    FirstOptions: FirstOptionsPage
  },
  {
    defaultNavigationOptions: {
      headerStyle: {
        // backgroundColor: '#28F1A6',
        elevation: 0,
        shadowOpacity: 0
      },
      headerTintColor: "#ca375e",
      headerTitleStyle: {
        fontWeight: "bold",
        color: "#161616"
      }
    }
  }
);

const App = createAppContainer(MainNavigator); // For setting Navigation Stack
export default App;

和 FirstOptionsPage.js:

import React from "react";
import {
  SafeAreaView,
  StyleSheet,
  View,
  Text,
  ScrollView,
  Switch
} from "react-native";

export default class FirstOptionsPage extends React.Component {
  static navigationOptions = {
    title: "Preferences"
  };

  constructor(props) {
    super(props);
    this.state = {
      switch1Value: false
    };
  }

  toggleSwitch1 = value => {
    this.setState({ switch1Value: value });
    console.log("Switch 1 is: " + value);
  };

  render() {
    const { navigate } = this.props.navigation;
    return (
      <SafeAreaView style={styles.mainContainerStyle}>
        <View style={styles.subContainerStyle}>
          <Text style={styles.subtitleTextStyle}>Someone likes my post</Text>
          <View style={styles.switchStyle}>
            <Switch
              onValueChange={this.toggleSwitch1}
              value={this.state.switch1Value}
              thumbColor={MAGENTA_COLOR_CODE}
              trackColor={{
                false: GREY_COLOR_CODE,
                true: DARK_GREY_COLOR_CODE
              }}
            />
          </View>
        </View>
      </SafeAreaView>
    );
  }
}

我是 React-Native 的新手。我怎样才能解决这个问题？

Answer 1

我认为问题出在SafeAreaView ，对于新的 react-native 版本，它已经迁移到 react-native-community/react-native-safe-area-view .如果您想使用 SafeAreaView ，你应该先安装它。
新用途是这样的:

import SafeAreaView from 'react-native-safe-area-view';

export default function MyAwesomeApp() {
  return (
    <SafeAreaView style={{ flex: 1 }}>
      <View style={{ flex: 1 }}>
        <Text>
          Look, I'm safe! Not under a status bar or notch or home indicator or
          anything! Very cool
        </Text>
      </View>
    </SafeAreaView>
  );
}

要安装它，您可以使用以下命令: yarn add react-native-safe-area-view react-native-safe-area-context .
如果您不使用自动链接，则还必须链接它。有关详细信息，请参阅此 link