運行本機時android上的白色空白屏幕

Question

這是我的項目文件夾項目文件夾

當我第一次在設備中啟動項目時，一切工作正常。 我想學習React導航，所以我點擊了此鏈接https://wix.github.io/react-native-navigation/#/installation-android安裝react-native導航並嘗試將啟動屏幕作為我的啟動屏幕時我的

屏幕文件夾

Index.android.js

import App from './src/App';

index.js

import { Navigation } from 'react-native-navigation';
import startupscreen from './startupscreen';

export function registerScreens() {
   Navigation.registerComponent('dudenew.startupscreen', () => 
 startupscreen);
}

App.js

import { Navigation } from 'react-native-navigation';

 import React, { Component } from 'react';
 import {
 AppRegistry,
 } from 'react-native';

 import { registerScreens } from './screens';

 registerScreens();


 AppRegistry.registerComponent('dudenew', () => dudenew);

startupscreen.js

import React , { Component }  from 'react';
 import{
    Text,
  Image,
  View,
  StyleSheet,

 } from 'react-native';


 export default class startupscreen extends Component{
render(){

    return(
        <View style = {styles.container}>

            <View style = {styles.logotext}>

                <Text>
                    <Text>Hellooo  </Text>
                    <Text style = {{color: 'blue'}}> hh </Text>
                </Text>
            </View>
        </View>

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

},
logotext : {
    alignItems : 'center',
    flexGrow : 1,
    justifyContent:'center'

    }
    });

為什么顯示白色的空白屏幕？ 提前致謝

Answer 1

react-native版本似乎存在問題，將您的react-native版本降級到0.49，然后應該可以。