Use ngCordova, with the plugin Social Sharing
To do this, just install ngCordova with bower and add the plugin
bower install ngCordova
cordova plugin add https://github.com/EddyVerbruggen/SocialSharing-PhoneGap-Plugin.git
Add the script to your index.html
<script src="lib/ngCordova/dist/ng-cordova.js"></script>
<script src="cordova.js"></script>
And add the dependency in your app.js
angular.module('myApp', ['ionic', 'ngCordova'])
In the controller use the $ cordovaSocialSharing service. The documentation on how to use is in the github of the project: link