React Native Social Share

Use the build in share view from iOS to let the user share on Facebook and Twitter. It will use the users existing account without having to get new authorizations. You can even preset text, image and link for the share view.

In other words a React Native wrapper for the SLComposeViewController

I developed this module for our upcoming artboost app. https://artboost.com

Getting started

1. npm install react-native-social-share --save
2. In XCode, in the project navigator right click Libraries ➜ Add Files to [your project's name]
3. Go to node_modules ➜ react-native-social-share➜ iOS and add KDSocialShare.h and KDSocialShare.m
4. Go to your project's Build Phases ➜ Link Binary With Libraries phase
5. Add Social.framework to ➜ Link Binary With Libraries build phase of your project (click the '+' and search for 'social').
6. Run your project (Cmd+R)

Now you can implement the share popups in your react native code.

Example of implementation

First you should make the native implementation available in the react code by inserting the following line in the top of the file

var KDSocialShare = require('NativeModules').KDSocialShare;

After doing that you will be able to popup the share views from your own functions. I made two examples below one for Facebook and one for Twitter

  tweet : function() {

    KDSocialShare.tweet({
        'text':'Global democratized marketplace for art',
        'link':'https://artboost.com/',
        'imagelink':'https://artboost.com/apple-touch-icon-144x144.png',
        //or use image
        'image': 'artboost-icon',
      },
      (results) => {
        console.log(results);
      }
    );
  },

  shareOnFacebook : function() {

    KDSocialShare.shareOnFacebook({
        'text':'Global democratized marketplace for art',
        'link':'https://artboost.com/',
        'imagelink':'https://artboost.com/apple-touch-icon-144x144.png',
        //or use image
        'image': 'artboost-icon',
      },
      (results) => {
        console.log(results);
      }
    );
  },

The two implementations take the following paramters

• KDSocialShare.shareOnFacebook(options [object], callback [function])
• KDSocialShare.tweet(options [object], callback [function])

IMPORTANT Both the options object and the callback function needs to be set. The options object can be empty though if you do not want to preset any of the possible options.

Options

The options object lets you prepopulate the share view for the user. You can use the following parameters:

Parameter	Desciption
text	Sets the initial text of the message on the SLComposeViewController instance.
imagelink	Adds an image file from the given publicly available URL as attachments to the message.
image	Adds an image file from the xcode image assets. image takes priority over imagelink. Only one out of two will load.
link	Adds a URL to the message. The method automatically handles the URL shortening.

Callback

The callback function runs when the native environment has information for the react environment

Callback	Desciption
"success"	Native call made by the viewController - SLComposeViewControllerResultDone – The user sent the composed message by touching the Send button.
"cancelled"	Native call made by the viewController - SLComposeViewControllerResultCancelled – The user cancelled the composition session by touching the Cancel button.
"not_available"	The selected service eg. Facebook, is not available. This can be because the user has not signed in to Facebook on the device or maybe there is no internet access.

You can use these callbacks to present alerts to the user. For example tell the user to login to a certain service.

The full example code

'use strict';

var React = require('react-native');
var {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  TouchableHighlight,
} = React;

var KDSocialShare = require('NativeModules').KDSocialShare;


var ReactNativeSocialShare = React.createClass({

  tweet : function() {

    KDSocialShare.tweet({
        'text':'Global democratized marketplace for art',
        'link':'https://artboost.com/',
        'imagelink':'https://artboost.com/apple-touch-icon-144x144.png',
        //or use image
        'image': 'artboost-icon',
      },
      (results) => {
        console.log(results);
      }
    );
  },

  shareOnFacebook : function() {

    KDSocialShare.shareOnFacebook({
        'text':'Global democratized marketplace for art',
        'link':'https://artboost.com/',
        'imagelink':'https://artboost.com/apple-touch-icon-144x144.png',
        //or use image
        'image': 'artboost-icon',
      },
      (results) => {
        console.log(results);
      }
    );
  },


  render: function() {
    return (
      <View style={styles.container}>
        <Text style={styles.welcome}>
          Twitter and Facebook share
        </Text>

        <Text style={styles.instructions}>
          Try tapping one of the buttons
        </Text>

        <View style={styles.seperator}/>

        <TouchableHighlight onPress={this.tweet}>
          <View style={{alignItems: 'center',justifyContent:'center', width: 150, height: 50,backgroundColor:'#00aced'}}>
           <Text style={{color:'#ffffff',fontWeight:'800',}}>Share on Twitter</Text>
          </View>
        </TouchableHighlight>

        <View style={styles.seperator}/>

        <TouchableHighlight onPress={this.shareOnFacebook}>
          <View style={{alignItems: 'center',justifyContent:'center', width: 150, height: 50,backgroundColor:'#3b5998'}}>
           <Text style={{color:'#ffffff',fontWeight:'800',}}>Share on Facebook</Text>
          </View>
        </TouchableHighlight>
      </View>

      
    );
  }
});

var styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  seperator:{
    marginBottom: 20
  }
});

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

Done