var win = Ti.UI.createWindow({backgroundColor: 'gray', fullscreen: true});
var listView = Ti.UI.createListView();
listView.separatorStyle =Titanium.UI.TABLE_VIEW_SEPARATOR_STYLE_SINGLE_LINE;
listView.separatorColor = 'blue';
var section = Ti.UI.createListSection();
var sectionData = [];
var i = 10;
for (var k = 0; k < 10; k++) {
    sectionData.push({
        properties : {
            title: 'Row ' + (k + 1)
        }
    });
}
section.setItems(sectionData);
listView.sections = [section];
win.add(listView);
win.open();