Package Exports

react-native-dnssd

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (react-native-dnssd) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

react-native-dnssd

Getting started

$ npm install react-native-dnssd --save

Mostly automatic installation

$ react-native link react-native-dnssd

Manual installation

iOS

In XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name]
Go to node_modules ➜ react-native-dnssd and add RNDnssd.xcodeproj
In XCode, in the project navigator, select your project. Add libRNDnssd.a to your project's Build Phases ➜ Link Binary With Libraries
Run your project (Cmd+R)<

Android

Open up android/app/src/main/java/[...]/MainActivity.java

Add import com.koperadev.RNDnssdPackage; to the imports at the top of the file
Add new RNDnssdPackage() to the list returned by the getPackages() method

Append the following lines to android/settings.gradle:

include ':react-native-dnssd'
project(':react-native-dnssd').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-dnssd/android')

Insert the following lines inside the dependencies block in android/app/build.gradle:
```
  compile project(':react-native-dnssd')
```

Usage

import { DNSSD } from 'react-native-dnssd';

const foundSub = DNSSD.addEventListener("serviceFound", (service) => {
    console.log("Service Found", service);
});
const lostSub = DNSSD.addEventListener("serviceLost", (service) => {
    console.log("Service Lost", service);
});
DNSSD.startSearch("airplay", "tcp");

setTimeout(() => {
    DNSSD.stopSearch();
    foundSub.remove();
    lostSub.remove();
}, 30000);

Example

import { DNSSD } from 'react-native-dnssd';

import React, { Component } from 'react';
import {
  FlatList,
  Platform,
  SafeAreaView,
  StyleSheet,
  Text,
  View
} from 'react-native';
import { DNSSD } from 'react-native-dnssd';

export default class App extends Component {
  constructor(props) {
    super(props);

    this.state = {
      services: [],
    };
  }

  componentDidMount() {
    this.serviceFoundSub = DNSSD.addEventListener("serviceFound", (service) => {
      console.log("Service Found", service);
      const existing = this.state.services.find((s) => s.name === service.name);
      this.setState({
        services: existing
          ? this.state.services.map((s) => s.name === service.name ? service : s)
          : [...this.state.services, service],
      });
    });
    this.serviceLostSub = DNSSD.addEventListener("serviceLost", (service) => {
      console.log("Service Lost", service);
      this.setState({
        services: this.state.services.filter((s) => s.name !== service.name),
      });
    });
    DNSSD.startSearch("airplay", "tcp");
  }

  componentWillUnmount() {
    this.serviceFoundSub.remove();
    this.serviceLostSub.remove();
    this.serviceResolvedSub.remove();
    DNSSD.stopSearch();
  }

  render() {
    const { services } = this.state;

    return (
      <SafeAreaView style={styles.container}>
        <View style={styles.content}>
          <Text style={styles.title}>Airplay Devices</Text>
          <FlatList
            data={services}
            keyExtractor={(service) => `${service.name}.${service.type}${service.domain}`}
            renderItem={({ item: service }) => <Service service={service} />}
            style={styles.services} />
        </View>
      </SafeAreaView>
    );
  }
}

const Service = ({ service }) =>
  <View style={styles.service}>
    <Text style={styles.serviceName}>{service.name}</Text>
    {service.hostName !== undefined
      ? <Text style={styles.serviceHost}>{service.hostName}:{service.port}</Text>
      : null}
    {Object.keys(service.txt || {}).map((key) =>
      <Text key={key} style={styles.serviceTxt}>{key}={service.txt[key]}</Text>)}
  </View>;

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#f0faff',
  },
  content: {
    flex: 1,
    padding: 20,
  },
  title: {
    marginBottom: 20,

    fontSize: 28,
  },
  services: {
    flex: 1,
  },
  service: {
    paddingBottom: 10,
  },
  serviceName: {
    fontSize: 20,
  },
  serviceType: {
    color: '#aaaaaa',
  },
  serviceHost: {
    color: '#aaaaaa',
  },
  serviceTxt: {
    fontFamily: Platform.OS === 'ios' ? 'Courier' : 'monospace'
  },
});