App.js

import React from 'react';
import { Platform, StatusBar, StyleSheet, View } from 'react-native';
import { AppLoading, Asset, Font, Icon, SplashScreen } from 'expo';
import AppNavigator from './navigation/app-navigator';

import { primaryColor } from './utils/stylesheets';

export default class App extends React.Component {
  state = {
    isLoadingComplete: false,
  };

  constructor(props) {
    super(props);
    SplashScreen.preventAutoHide();
  }

  render() {
    if (!this.state.isLoadingComplete && !this.props.skipLoadingScreen) {
      return (
        <AppLoading
          startAsync={this._loadResourcesAsync}
          onError={this._handleLoadingError}
          onFinish={this._handleFinishLoading}
        />
      );
    } else {
      return (
        <View style={styles.container}>
          <StatusBar barStyle="light-content" />
          <AppNavigator />
        </View>
      );
    }
  }

  _loadResourcesAsync = async () => {
    return Promise.all([
      Asset.loadAsync([
        require('./assets/images/confetti.png'),
        require('./assets/images/meditate.png'),
      ]),
      Font.loadAsync({
        // This is the font that we are using for our tab bar
        ...Icon.Ionicons.font,
        ...Icon.Feather.font,
        'basierSquare': require('./assets/fonts/basiersquare-regular-webfont.ttf'),
        'basierSquare-bold': require('./assets/fonts/basiersquare-bold-webfont.ttf'),
        'basierSquare-italic': require('./assets/fonts/basiersquare-regularitalic-webfont.ttf'),
      }),
    ]);
  };

  _handleLoadingError = error => {
    // In this case, you might want to report the error to your error
    // reporting service, for example Sentry
    console.warn(error);
  };

  _handleFinishLoading = () => {
    SplashScreen.hide();
    this.setState({ isLoadingComplete: true });
  };
}

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