[TIMOB-7118] iOS: Button - Animation not working when both the "backgroundImage" and the "backgroundSelectedImage" are set

DESCRIPTION

When both the "backgroundImage" and the "backgroundSelectedImage" are set in iOS button, the customized button won't change from one to the other. I added a click event to see if the event is being fired, and it's fired just fine, but you won't see the animation.

Repro Steps:

Step 1: add the attached image to your Resources folder Step 2: run the code below Step 3: click the button

var win = Titanium.UI.createWindow();  

var button = Ti.UI.createButton({
    width:207, 
    height:80, 
    top:0, 
    left:0,
    backgroundColor:'#000',
    color:'#000',
    backgroundSelectedImage:'testButton2.png',
    backgroundImage: 'testButton.png',
});

button.addEventListener('click',function(){
	Ti.API.info('clicked button');
});

win.add(button);
win.open();