setting android button invisible but still having an onClick Listener attached

Question

So currently I\'m putting an Easter egg inside my app and I want the Button to be invisible, but when clicked(Rick roll). So far I can make it work when I say:

Answer 1

Make sure that your button's width and height are not set to wrap_content because that would cause the button to be extremely small if the text is " ". If that doesn't work, you could also try replacing onClick() with onTouch():

button1.setOnTouchListener(new OnTouchListener()
{
    @Override
    public boolean onTouch(View v, MotionEvent event)
    {
        // TODO Auto-generated method stub
        return false;
    }
});