functions.js

//Placed in /lib/functions.js
var getData = function(callback){
	var rssFeed = Ti.Network.createHTTPClient();

	rssFeed.onload = function(){
		var xml = this.responseXML;
		var items = xml.documentElement.getElementsByTagName("item");
		var _title = "";
		var tableData = [];
		var row = "";
		var rowLbl = "";
		
		for(var i =0; i < items.length; i++)
		{
			_title = items.item(i).getElementsByTagName("title").item(0).textContent;
			
			//create row
			row = Ti.UI.createTableViewRow({
				height: Ti.UI.SIZE,
				guid: _guid
			});

			//create label for row
			rowLbl = Ti.UI.createLabel({
				text: _title,
				textAlign: "center"
			});

			//add label to row
			row.add(rowLbl);

			//add row to tableData array
			tableData.push(row);
		}
		//call callback function, pass data
		callback(tableData);
	};

	rssFeed.onerror = function(e){
		Ti.API.info("Error getting data from URL: "+JSON.stringify(e));
	};

	rssFeed.open("GET", "http://blog.foolprooflabs.com/feed/");
	rssFeed.send();


};

exports.getData = getData;

rssFeed.js

var functions = require('functions');

var tblView = Ti.UI.createTableView({
	backgroundColor: "red"
});

//call getdata, passing callback function
$.btn_refresh.addEventListener('click', function(){
	functions.getData(function(data){
		tblView.data = data;	
	});
});

//add table view to window
$.parentContainer.add(tblView);