[TIMOB-17558] Android: Odd behaviour when using TabGroup + ActionBar

// this sets the background color of the master UIView (when there are no windows/tab groups on it)
Titanium.UI.setBackgroundColor('#000');

// create tab group
var tabGroup = Titanium.UI.createTabGroup();

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

var win2 = Titanium.UI.createWindow({
	title : 'Tab 2',
	backgroundColor : '#fff'
});
var tab2 = Titanium.UI.createTab({
	icon : 'KS_nav_ui.png',
	title : 'Tab 2',
	window : win2
});

var win3 = Titanium.UI.createWindow({
	title : 'Tab 3',
	backgroundColor : '#fff'
});
var tab3 = Titanium.UI.createTab({
	icon : 'KS_nav_ui.png',
	title : 'Tab 3',
	window : win3
});

//
// add tabs
//
tabGroup.addTab(tab1);
tabGroup.addTab(tab2);
tabGroup.addTab(tab3);

tabGroup.addEventListener("open", function(e) {
	var activity = tabGroup.getActivity();
	var actionBar = activity.actionBar;
	 actionBar.title = 'Title';
	
	 actionBar.setDisplayHomeAsUp( true );
	actionBar.setDisplayShowHomeEnabled(false);
	actionBar.setDisplayShowTitleEnabled(true);
	activity.onCreateOptionsMenu = function(e) {
		var item, menu;
		menu = e.menu;
		menu.clear();

		item = menu.add({
			title : "Tab1 Item",
			showAsAction : Ti.Android.SHOW_AS_ACTION_ALWAYS
		});

	};
});

tabGroup.addEventListener("focus", function(e) {
	tabGroup.getActivity().invalidateOptionsMenu();
});

// open tab group
tabGroup.open();