i tried to use my popupWindow with some enter/exit animations - it has setAnimationStyle() method for that purpose.
after some time i realized i cannot use my own custom animation styles which is ok but a bit limiting. so i tried system ones:
R.style.Animation_Toast works ok, but R.style.Animation_Dialog doesn't.
looking at xml definition files i found that Toast animation uses
simple alpha animation and Dialog animation is a set of alpha combined with scale animation.
is it a problem for WindowManager to deal with complex animations?