test2.js

var btn = Ti.UI.createButton({
	title: "Test",
});

var win = Ti.UI.createWindow();
win.add(btn);

btn.addEventListener("click", function(e) {
	Ti.API.warn("2) touchEnabled = " + e.source.touchEnabled);
});

win.open();

setTimeout(function() {
    btn.setTouchEnabled(false);
    Ti.API.warn("3) touchEnabled = " + btn.touchEnabled);
},2000);

Ti.API.warn("1) touchEnabled = " + btn.touchEnabled);