content: /**
   * Sample React Native App
   * https://github.com/facebook/react-native
   * @flow
   */
  
  import React, { Component } from 'react';
  import {
    AppRegistry,
    StyleSheet,
    Text,
    View,
    Button,
  } from 'react-native';
  
  import {
    StackNavigator,
  } from 'react-navigation';
  
  export default class Preferences extends Component {
    
    static navigationOptions = {
      title: 'Preferences',
      header: false
    };
    
    render() {
      const { navigate } = this.props.navigation;
      
      return (
        <View>
          <Text
            style={{
              fontSize: 42,
            }}
          >
            User Preferences
          </Text>
          <Button
            onPress={() => navigate('Main')}
            title="Curious about Learning?"
          />
        </View>
      );
    }
  }
  
  const styles = StyleSheet.create({
    container: {
      flex: 1,
      justifyContent: 'center',
      alignItems: 'center',
      backgroundColor: '#F5FCFF',
    },
    welcome: {
      fontSize: 20,
      textAlign: 'center',
      margin: 10,
    },
    instructions: {
      textAlign: 'center',
      color: '#333333',
      marginBottom: 5,
    },
    fontStyle: {
      fontSize: 42,
    },
  });
  
  
  AppRegistry.registerComponent('Preferences', () => App);
  