Android tableView pull to refresh and no results alert

app

var win = Ti.UI.currentWindow;

var alertDialog = Titanium.UI.createAlertDialog({
    title: 'System Message',
    buttonNames: ['OK']
});

var data = [
  {title:"Refresh",color:'#000',height:50},
	{title:"Row 1",color:'#000',height:50},
	{title:"Row 2",color:'#000',height:50},
	{title:"Row 3",color:'#000',height:50},
	{title:"Row 4",color:'#000',height:50},
	{title:"Row 5",color:'#000',height:50},
	{title:"Row 6",color:'#000',height:50},
	{title:"Row 7",color:'#000',height:50},
	{title:"Row 8",color:'#000',height:50},
	{title:"Row 9",color:'#000',height:50},
	{title:"Row 10",color:'#000',height:50},
	{title:"Row 11",color:'#000',height:50},
	{title:"Row 12",color:'#000',height:50},
	{title:"Row 13",color:'#000',height:50},
	{title:"Row 14",color:'#000',height:50},
	{title:"Row 15",color:'#000',height:50},
	{title:"Row 16",color:'#000',height:50},
	{title:"Row 17",color:'#000',height:50},
	{title:"Row 18",color:'#000',height:50},
	{title:"Load More",color:'#000',height:50}
];

var searchBar = Ti.UI.createSearchBar();

searchBar.addEventListener("change", function(e){
	var count = 0;
	for(var i in data){
		//Non case sensitive version
		//if(data[i].title.toLowerCase().indexOf(e.value.toLowerCase())!="-1"){
		if(data[i].title.indexOf(e.value)!="-1"){
			count++;
		}
	}
	if(count == 0){
		alert("No Results");
	}
});

var tableView = Ti.UI.createTableView({
	data: data,
	width:Ti.UI.FILL,
	height:Ti.UI.SIZE,
	backgroundColor:'#FFF',
	search:searchBar,
	filterAttribute:"title"
});

// update the offset value whenever scroll event occurs
var offset = 0;
var visible = 0;
tableView.addEventListener('scroll', function(e) {
	if (e.firstVisibleItem!=null) {
		offset = e.firstVisibleItem;
		visible = e.visibleItemCount
		Ti.API.debug('offset: '+offset);
	}
});

tableView.scrollToIndex(1);

tableView.addEventListener('scrollend', function(e) {
	if (offset==0) {
		Ti.API.info('REFRESH !!!!');
		alertDialog.message = "REFRESH !!!!";
		alertDialog.show();
		tableView.scrollToIndex(1);
	} else if ((offset+visible)==tableView.data[0].rows.length) {
		Ti.API.info('LOAD MORE !!!!');
		alertDialog.message = "LOAD MORE !!!!";
		alertDialog.show();
		tableView.scrollToIndex(offset-1);
	} 
});

win.add(tableView);