main.js

import Exponent from 'exponent';
import React from 'react';
import {
  AppRegistry,
  Platform,
  StatusBar,
  StyleSheet,
  View,
} from 'react-native';

import {
  FontAwesome,
} from '@exponent/vector-icons';

import Main from './screens/main';

import cacheAssetsAsync from './utilities/cacheAssetsAsync';

class AppContainer extends React.Component {
  state = {
    appIsReady: false,
  }

  componentWillMount() {
    this._loadAssetsAsync();
  }

  async _loadAssetsAsync() {
    try {
      await cacheAssetsAsync({
        images: [
          require('./assets/images/exponent-wordmark.png'),
        ],
        fonts: [
          FontAwesome.font,
          {'space-mono': require('./assets/fonts/SpaceMono-Regular.ttf')},
        ],
      });
    } catch(e) {
      console.warn(
        'There was an error caching assets (see: main.js), perhaps due to a ' +
        'network timeout, so we skipped caching. Reload the app to try again.'
      );
      console.log(e.message);
    } finally {
      this.setState({appIsReady: true});
    }
  }

  render() {
    if(!this.state.appIsReady) {
      return <Exponent.Components.AppLoading />
    }
    return (
        <View style={styles.container}>
            <Main/>
        </View>
    )

  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
  },
  statusBarUnderlay: {
    height: 24,
    backgroundColor: 'rgba(0,0,0,0.2)',
  },
});

Exponent.registerRootComponent(AppContainer);