index.js

import {AppRegistry, AppState, Platform} from 'react-native';
import AppAndroid from './src/App.android';
import AppIos from './src/App.ios';
// import App from './src/App.android';
import {name as appName} from './app.json';
import 'react-native-gesture-handler';
import messaging from '@react-native-firebase/messaging';
import notifee from '@notifee/react-native';

if (__DEV__) {
  import('./config').then(() => console.log('Reactotron Configured'));
}

// Android에서 백그라운드를 처리하기 위한 코드 IOS는 바로 foreground로 들어옴
messaging().setBackgroundMessageHandler(async remoteMessage => {
  console.log('Message handled in the background!', remoteMessage);
});

notifee.onBackgroundEvent(async ({type, detail}) => {
  console.log('Background Event', {type, detail});
});

const App = Platform.select({
  android: AppAndroid,
  ios: AppIos,
});

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