index.ios.js

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

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  DeviceEventEmitter
} from 'react-native';
import Beacons from 'react-native-beacons-manager';

export default class teambeacon extends Component {

  constructor(props) {
    super(props);

    // Request for authorization while the app is open
    Beacons.requestWhenInUseAuthorization();
    // Define a region which can be identifier + uuid,
    // identifier + uuid + major or identifier + uuid + major + minor
    // (minor and major properties are numbers)
    const region = {
      identifier: 'beacon',
      uuid: '6665542b-41a1-5e00-931c-6a82db9b78c1'
    };
    // Range for beacons inside the region
    Beacons.startRangingBeaconsInRegion(region);

    this.beaconsDidRange = DeviceEventEmitter.addListener(
      'beaconsDidRange',
      (data) => {
        console.log(data);
        // this.setState({
        //   dataSource: this.state.dataSource.cloneWithRows(data.beacons)
        // });
      }
    );
  }

  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.welcome}>
          Welcome to React Native!
        </Text>
        <Text style={styles.instructions}>
          To get started, edit index.ios.js
        </Text>
        <Text style={styles.instructions}>
          Press Cmd+R to reload,{'\n'}
          Cmd+D or shake for dev menu
        </Text>
      </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,
  },
});

AppRegistry.registerComponent('teambeacon', () => teambeacon);