App.js

import React, { Component } from "react";
import { Provider } from "react-redux";
import { store } from "./store/store";
import { StatusBar, StyleSheet, View, UIManager } from "react-native";
import { AppLoading, Font } from "expo";

import Colors from "./constants/Colors";

import Index from "./screens/Index";

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

  componentDidMount() {
    console.disableYellowBox = true;
    UIManager.setLayoutAnimationEnabledExperimental &&
      UIManager.setLayoutAnimationEnabledExperimental(true);
  }

  _loadResourcesAsync = async () =>
    Promise.all([
      // TODO: Remove unudsed fonts to speed up application loading
      Font.loadAsync({
        "Lato-Bold": require("./assets/fonts/Lato-Bold.ttf"),
        "Lato-BoldItalic": require("./assets/fonts/Lato-BoldItalic.ttf"),
        "Lato-Italic": require("./assets/fonts/Lato-Italic.ttf"),
        "Lato-Light": require("./assets/fonts/Lato-Light.ttf"),
        "Lato-Medium": require("./assets/fonts/Lato-Medium.ttf"),
        "Lato-Regular": require("./assets/fonts/Lato-Regular.ttf"),
        "Lato-Semibold": require("./assets/fonts/Lato-Semibold.ttf"),
        "Lato-Thin": require("./assets/fonts/Lato-Thin.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 = () => {
    this.setState({ isLoadingComplete: true });
  };

  render() {
    // eslint-disable-next-line react/prop-types
    if (!this.state.isLoadingComplete && !this.props.skipLoadingScreen) {
      return (
        <AppLoading
          startAsync={this._loadResourcesAsync}
          onError={this._handleLoadingError}
          onFinish={this._handleFinishLoading}
        />
      );
    }
    return (
      <Provider store={store}>
        <View style={styles.container}>
          <StatusBar
            barStyle="light-content"
            backgroundColor={Colors.watermelon}
          />
          <Index />
        </View>
      </Provider>
    );
  }
}

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