text: import * as WebBrowser from 'expo-web-browser';
  import * as React from 'react';
  import { Image, Platform, StyleSheet, Text, TouchableOpacity, View } from 'react-native';
  import { ScrollView } from 'react-native-gesture-handler';
  
  import { MonoText } from '../components/StyledText';
  
  export default function HomeScreen() {
    return (
      <View style={styles.container}>
        <ScrollView style={styles.container} contentContainerStyle={styles.contentContainer}>
          <View style={styles.welcomeContainer}>
            <Image
              source={
                __DEV__
                  ? require('../assets/images/robot-dev.png')
                  : require('../assets/images/robot-prod.png')
              }
              style={styles.welcomeImage}
            />
          </View>
  
          <View style={styles.getStartedContainer}>
            <DevelopmentModeNotice />
  
            <Text style={styles.getStartedText}>Open up the code for this screen: anuchit</Text>
  
            <View style={[styles.codeHighlightContainer, styles.homeScreenFilename]}>
              <MonoText>screens/HomeScreen.js</MonoText>
            </View>
  
            <Text style={styles.getStartedText}>
              Change any of the text, save the file, and your app will automatically reload.
            </Text>
          </View>
  
          <View style={styles.helpContainer}>
            <TouchableOpacity onPress={handleHelpPress} style={styles.helpLink}>
              <Text style={styles.helpLinkText}>Help, it didn’t automatically reload!</Text>
            </TouchableOpacity>
          </View>
        </ScrollView>
  
        <View style={styles.tabBarInfoContainer}>
          <Text style={styles.tabBarInfoText}>This is a tab bar. You can edit it in:</Text>
  
          <View style={[styles.codeHighlightContainer, styles.navigationFilename]}>
            <MonoText style={styles.codeHighlightText}>navigation/BottomTabNavigator.js</MonoText>
          </View>
        </View>
      </View>
    );
  }
  
  HomeScreen.navigationOptions = {
    header: null,
  };
  
  function DevelopmentModeNotice() {
    if (__DEV__) {
      const learnMoreButton = (
        <Text onPress={handleLearnMorePress} style={styles.helpLinkText}>
          Learn more
        </Text>
      );
  
      return (
        <Text style={styles.developmentModeText}>
          Development mode is enabled: your app will be slower but you can use useful development
          tools. {learnMoreButton}
        </Text>
      );
    } else {
      return (
        <Text style={styles.developmentModeText}>
          You are not in development mode: your app will run at full speed.
        </Text>
      );
    }
  }
  
  function handleLearnMorePress() {
    WebBrowser.openBrowserAsync('https://docs.expo.io/versions/latest/workflow/development-mode/');
  }
  
  function handleHelpPress() {
    WebBrowser.openBrowserAsync(
      'https://docs.expo.io/versions/latest/get-started/create-a-new-app/#making-your-first-change'
    );
  }
  
  const styles = StyleSheet.create({
    container: {
      flex: 1,
      backgroundColor: '#fff',
    },
    developmentModeText: {
      marginBottom: 20,
      color: 'rgba(0,0,0,0.4)',
      fontSize: 14,
      lineHeight: 19,
      textAlign: 'center',
    },
    contentContainer: {
      paddingTop: 30,
    },
    welcomeContainer: {
      alignItems: 'center',
      marginTop: 10,
      marginBottom: 20,
    },
    welcomeImage: {
      width: 100,
      height: 80,
      resizeMode: 'contain',
      marginTop: 3,
      marginLeft: -10,
    },
    getStartedContainer: {
      alignItems: 'center',
      marginHorizontal: 50,
    },
    homeScreenFilename: {
      marginVertical: 7,
    },
    codeHighlightText: {
      color: 'rgba(96,100,109, 0.8)',
    },
    codeHighlightContainer: {
      backgroundColor: 'rgba(0,0,0,0.05)',
      borderRadius: 3,
      paddingHorizontal: 4,
    },
    getStartedText: {
      fontSize: 17,
      color: 'rgba(96,100,109, 1)',
      lineHeight: 24,
      textAlign: 'center',
    },
    tabBarInfoContainer: {
      position: 'absolute',
      bottom: 0,
      left: 0,
      right: 0,
      ...Platform.select({
        ios: {
          shadowColor: 'black',
          shadowOffset: { width: 0, height: -3 },
          shadowOpacity: 0.1,
          shadowRadius: 3,
        },
        android: {
          elevation: 20,
        },
      }),
      alignItems: 'center',
      backgroundColor: '#fbfbfb',
      paddingVertical: 20,
    },
    tabBarInfoText: {
      fontSize: 17,
      color: 'rgba(96,100,109, 1)',
      textAlign: 'center',
    },
    navigationFilename: {
      marginTop: 5,
    },
    helpContainer: {
      marginTop: 15,
      alignItems: 'center',
    },
    helpLink: {
      paddingVertical: 15,
    },
    helpLinkText: {
      fontSize: 14,
      color: '#2e78b7',
    },
  });
  