What are the reasons for the React Native view not loading with RCTRootView?

Currently, I am following the React Native guide to incorporate a React Native view into an iOS application.

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

        const TestView = () => {
          return (
            <View>  
              <Text>Hello World</Text>  
            </View>  
          );
        };
        
        AppRegistry.registerComponent('TestView', () => TestView);
      

As per the documentation, I am creating the view within the iOS app using the suggested method:

guard let jsCodeLocation = URL(string: "http://localhost:8081/index.bundle?platform=ios") else { return }
        let rootView = RCTRootView(
          bundleURL: jsCodeLocation,
          moduleName: "TestView",
          initialProperties: nil,
          launchOptions: nil
        )
        let vc = UIViewController()
        vc.view = rootView
        self.present(vc, animated: true, completion: nil)
      

However, upon presenting the view controller, it appears blank:

The integration of React Native in the project is accurate. Even though index.js is triggered when the view controller is presented, it remains ineffective. Any thoughts or suggestions?

https://i.sstatic.net/P4JVb.png

Xcode recordings:

[native] Running application TestView ({ initialProps = { }; rootTag = 51; })

[connection] nw_socket_handle_socket_event [C15:1] Socket SO_ERROR [61: Connection refused]

Answer №1

The reason I couldn't get the app to run properly was because I had forgotten to switch Xcode to Debug mode.

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