App.js

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 *
 * @format
 * @flow
 */

import React from 'react';
import {
  SafeAreaView,
  StyleSheet,
  ScrollView,
  View,
  Text,
  StatusBar,
} from 'react-native';

import {
  Header,
  LearnMoreLinks,
  Colors,
  DebugInstructions,
  ReloadInstructions,
} from 'react-native/Libraries/NewAppScreen';
import Ionicons from 'react-native-vector-icons/Ionicons';
import { createAppContainer } from 'react-navigation';
import { createBottomTabNavigator } from 'react-navigation-tabs';

import CameraScreen from './screens/CameraScreen';
import LocationScreen from './screens/LocationScreen';
import BluetoothScreen from './screens/BluetoothScreen';

// const App: () => React$Node = () => {
//   return (
//     <>
//       <StatusBar barStyle="dark-content" />
//       <SafeAreaView>
//         <ScrollView
//           contentInsetAdjustmentBehavior="automatic"
//           style={styles.scrollView}>
//           <Header />

//           <View style={styles.body}>
//             <View style={styles.sectionContainer}>
//               <Text style={styles.sectionTitle}>Step One</Text>
//               <Text style={styles.sectionDescription}>
//                 Edit <Text style={styles.highlight}>App.js</Text> to change this
//                 screen and then come back to see your edits.
//               </Text>
//             </View>

//           </View>
//         </ScrollView>
//       </SafeAreaView>
//     </>
//   );
// };







const TabNavigator = createBottomTabNavigator(
  {
    Camera: { screen: CameraScreen },
    Location: { screen: LocationScreen },
    Bluetooth: { screen: BluetoothScreen },
  },
  {
    defaultNavigationOptions: ({ navigation }) => ({
      tabBarIcon: ({ focused, tintColor }) => {
        const { routeName } = navigation.state;
        let iconName;
        if (routeName === 'Camera') {
          iconName = `ios-information-circle${focused ? '' : '-outline'}`;
        } else if (routeName === 'Location') {
          iconName = `ios-options${focused ? '' : '-outline'}`;
        } else if (routeName === 'Bluetooth') {
          iconName = `ios-options${focused ? '' : '-outline'}`;
        }

        // You can return any component that you like here! We usually use an
        // icon component from react-native-vector-icons
        return <Ionicons name={iconName} size={25} color={tintColor} />;
      },
    }),
    tabBarOptions: {
      activeTintColor: 'tomato',
      inactiveTintColor: 'gray',
    },
  }
);





const styles = StyleSheet.create({
  scrollView: {
    backgroundColor: Colors.lighter,
  },
  engine: {
    position: 'absolute',
    right: 0,
  },
  body: {
    backgroundColor: Colors.white,
  },
  sectionContainer: {
    marginTop: 32,
    paddingHorizontal: 24,
  },
  sectionTitle: {
    fontSize: 24,
    fontWeight: '600',
    color: Colors.black,
  },
  sectionDescription: {
    marginTop: 8,
    fontSize: 18,
    fontWeight: '400',
    color: Colors.dark,
  },
  highlight: {
    fontWeight: '700',
  },
  footer: {
    color: Colors.dark,
    fontSize: 12,
    fontWeight: '600',
    padding: 4,
    paddingRight: 12,
    textAlign: 'right',
  },
});

// export default App;

export default createAppContainer(TabNavigator);