TIMOB-16100.js

var win = Ti.UI.createWindow();

var view = Ti.UI.createView();

var password = Ti.UI.createTextField({
	width : Ti.UI.FILL,
	height : 40,
	font : {fontSize: 14, fontFamily:"Times"},
	passwordMask : false,
	hintText : "password",
	backgroundColor: "#ccc",
	autocorrect : false,
	autocapitalization: Titanium.UI.TEXT_AUTOCAPITALIZATION_NONE,
	returnKeyType: Ti.UI.RETURNKEY_DONE
});

password.addEventListener("change", function(e) {
	Ti.API.warn("changed to: " + e.value);
});

var label = Ti.UI.createLabel({
	right: 10,
	text: "Hide Password"
});

label.addEventListener("click", function() {
	//e.cancelBubble = true;
	if (password.passwordMask === true) {
		label.text = "Hide Password";
		//inject font here, but still not work
		password.font = {
			fontFamily:"Times",
			fontSize: 14
		}
		password.passwordMask = false;
		
	} else  {
		label.text = "Show Password";
		password.font = {
			fontFamily:"Times",
			fontSize: 14
		}
		password.passwordMask = true;		
	}
});

password.add(label);

view.add(password);
win.add(view);
win.open();