Question

我在react-native中收到“对象不起作用（评估为0，reactNavigation.default）”错误。

下面是我的App.js文件

import Login from "./Login/Login.js";
import Home from "./Login/Home.js";
import  createStackNavigator  from "react-navigation";

const App = createStackNavigator({
    LoginScreen: {screen: Login},
    HomeScreen: {screen: Home},
 }); 

 export default App

下面是我的index.js文件

import React, { Component } from 'react';
import {AppRegistry} from 'react-native';
import App from './src/components/App';
import {name as appName} from './app.json';

AppRegistry.registerComponent(appName, () => App);

任何人都可以帮助我解决此问题，因为我不知道为什么会出现此错误

提前谢谢！

Answer 1

如果您使用的是react-navigation v2，则应执行以下操作

import Login from "./Login/Login.js";
import Home from "./Login/Home.js";
import  {createStackNavigator} from "react-navigation";

const App = createStackNavigator({
    LoginScreen: {screen: Login},
    HomeScreen: {screen: Home},
 }); 

export default App

如果您使用的是react-navigation v3，则应执行以下操作，因为此版本中引入了重大更改

import Login from "./Login/Login.js";
import Home from "./Login/Home.js";
import  {createStackNavigator, createAppContainer} from "react-navigation";

const Stack = createStackNavigator({
    LoginScreen: {screen: Login},
    HomeScreen: {screen: Home},
 }); 

const App = createAppContainer(Stack);

export default App

在React Native中对象不起作用（评估为0，reactNavigation.default）

1 个答案: