gistfile1.js

Titanium.UI.setBackgroundColor('#000');

var tabGroup = Titanium.UI.createTabGroup();

var win1 = Titanium.UI.createWindow({  
    tabBarHidden: true,
    title:'Tab 1',
    backgroundColor:'#fff'
});

var l = Ti.UI.createLabel({
    top: 1,
    left: 1,
    width: 200,
    height: 50,
    text: 'This TextField should not be editable:'
});
win1.add(l);

var tfNotEditable = Ti.UI.createTextField({
    top: 55,
    left: 1,
    width: 200,
    height: 50,
    editable: false,
    value: 'default text here',
    borderColor: 'black'
});
win1.add(tfNotEditable);

var tab1 = Titanium.UI.createTab({  
    icon:'KS_nav_views.png',
    title:'Tab 1',
    window:win1
});

tabGroup.addTab(tab1);  
tabGroup.open();