Question

我是React Native的新手，我正在尝试创建一个iOS应用。我的启动屏幕运行良好，并且在创建项目时可以加载初始App.js屏幕。但是，当我将返回值更改为自己的.js文件时，它无法生成，并停留在初始屏幕上。请给我一些提示，我遵循了许多教程。

App.js

// App.js

import React, { Component } from 'react';
import SplashScreen from 'react-native-splash-screen';

import GetStarted from './authentication/GetStarted'
import { createStackNavigator, createAppContainer } from 'react-navigation'

const AuthNav = createAppContainer(
  createStackNavigator({
    GetStarted: { screen: GetStarted },
  })
);

type Props = {};
export default class App extends Component<Props> {

  componentDidMount() {
    SplashScreen.hide()
  }

  render() {
    return (
      <AuthNav />
    );
  }
}

GetStarted.js

//GetStarted.js
import React, { Component } from 'react';
import {
  View,
  Text,
  StyleSheet,
} from 'react-native';

export default class GetStarted extends Component {
  render() {
    return (
      <View style={styles.container}>
        <Text>Lets get started</Text>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItem: 'center',
    justifyContent: 'center',
    backgroundColor: 'blue'
  }
});

package.json

{
"name": "TestApp",
"version": "0.0.1",
"private": true,
"scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
},
"dependencies": {
    "react": "16.6.3",
    "react-native": "0.58.3",
    "react-native-firebase": "^5.2.2",
    "react-native-navigation": "^2.12.0",
    "react-native-splash-screen": "3.0.6",
    "react-navigation": "^3.3.0"
},
"devDependencies": {
    "babel-core": "7.0.0-bridge.0",
    "babel-jest": "24.0.0",
    "jest": "24.0.0",
    "metro-react-native-babel-preset": "0.51.1",
    "react-test-renderer": "16.6.3"
},
"jest": {
    "preset": "react-native"
}
}

Answer 1

您正在使用"react-navigation": "^3.3.0"并尝试导入StackNavigator。他们在v2+中将StackNavigator重命名为createStackNavigator。看来您所使用的教程正在使用v1。因此，您可以将使用的版本更改为"react-navigation": "^1.5.2"，也可以保留并使用createStackNavigator。如果您选择坚持使用的版本（v2+），请阅读我对同一问题here的另一回复；它将进一步解释。

我的启动画面不会在React Native上移至下一个画面

1 个答案: