A simple example of using Android intents to share texts, URLs and files like you could do using 0x82's ShareKit module (https://marketplace.appcelerator.com/apps/741) or any other similar module (TiSocial: https://github.com/viezel/TiSocial.Framework) for iOS.

share.js

function share(options) {
  
	if (OS_ANDROID) {
		
	   	var intent = Ti.Android.createIntent({
	        	action: Ti.Android.ACTION_SEND
	    	});
	    
	    	intent.putExtra(Ti.Android.EXTRA_SUBJECT, options.title);
	    
	    	if (options.link) {
		    intent.putExtra(Ti.Android.EXTRA_TEXT, options.link);
		}
		
	    	if (options.text) {
		    intent.putExtra(Ti.Android.EXTRA_TEXT, options.text);
		}
		    
	    	if (options.image) {
	    		intent.putExtraUri(Ti.Android.EXTRA_STREAM, options.image.nativePath);
	    	}
	
	    	if (options.file) {
	   		intent.putExtraUri(Ti.Android.EXTRA_STREAM, options.file.nativePath);
	  	}
	 
	    	var share = Ti.Android.createIntentChooser(intent, 'Delen');
	    
		Ti.Android.currentActivity.startActivity(share);
	
	} else if (OS_IOS) {
	
		if (options.image) {
			options.image = options.image.read();
		}
		
		if (options.file) {
			options.file = options.file.read();
		}
	
		require('com.0x82.sharekit').share(options);
	}
}

exports.share = share;

Please note that for both the iOS and Android implementation you'd have to play with passing the right options. For example: passing both an image and a link will trigger different services (behavior) then just passing a link.