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

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

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


var view = Titanium.UI.createImageView({
	height:43,
	width:98,
	top:10,
	image:'closewin.png', //image file
	transform:Ti.UI.create3DMatrix().rotate(180, 0, 1, 0)
});
win.add(view);

var save = Titanium.UI.createButton({
	title:'Save',
	width:120,
	height:40,
	bottom:20,
	right:0,
});

save.addEventListener('click', function()
{
		    // file system
			var photoname= new Date().getTime()+".png";
			var f = Titanium.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory,photoname);
			f.write(view.toImage());

});
win.add(save);

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