I am developing a Flex application where I need to do some resize effects. I have 2 VBoxs side by side. They need to resize when a user clicks a button. I have been using states to do the resize effects, but I can not get it to look nice. I have tried a lot of effects and other things, but it doesn't look good.
So I started to create a custom component that is based on the Accordion tween effects. Now it looks nice, but I am wondering why I could not get it to look nice with the resize or move effects. I applied a lot of the animation optimizations that I have found.

