Among an App essential features we can surely mention the "Sharing" ability.
While we got it covered in iOS with react-native-activity-view and react-native-social-share, we still missed an Android counterpart.

Here is Esteban Fuentealba's Component that is also an example implementation of Android's SEND intent.

react-native-share

Share Social, Sending Simple Data to Other Apps

onShare: function() {
  Share.open({
    share_text: "Hola mundo",
    share_URL: "http://google.cl",
    title: "Share Link"
  },function(e) {
    console.log(e);
  });
},
render: function() {
  return (
    <View style={styles.container}>
      <TouchableHighlight onPress={this.onShare}>
        <Text  style={styles.instructions}>
          Share
        </Text>
      </TouchableHighlight>
    </View>
  );
}