help for my search bar

for now I just created the structure of my search bar but nothing is happening

I do a search in an xml file and display the result in a tableview

how should I do please ?

var winSearch = Titanium.UI.createWindow({
            title: 'Search',
            backgroundColor: 'white'
        });
 
            var tabRecherche = Titanium.UI.createTab({
                icon: 'images/icons/search_on.png',
                title: 'Recherche',
                window: winSearch
        });
 
        /* barre de recherche*/
 
        var search = Titanium.UI.createSearchBar({
            barColor:'#000',
            howCancel:true,
            height:43,
            top:0
        });
 
        winSearch.add(search);