Poor scrolling animation when swiping a Macbook touchpad

Vadim Pakhnushev vadim.pakhnushev at oracle.com
Fri Aug 8 08:04:06 UTC 2014


Hi Robert,

I've reported this issue a while back: 
https://javafx-jira.kenai.com/browse/RT-34963

Thanks,
Vadim

On 08.08.2014 8:38, Robert Lebel wrote:
> On a brand new Macbook pro 2014 (my first), scrolling is not smooth when I
> swipe 2 fingers up or down on the touchpad. If I use the mouse wheel or
> drag the scrollbar instead of a gesture, scrolling is of course fine.
>
> I see this in all javafx app, not just my own. The home screen of Ensemble
> 8 is the easiest way to see it.
>
> It looks like a poorly implemented animation more than a performance
> problem. If I swipe fast, the animation apperars to start smooth, and then
> it get more and more jerky as it slow down. Just before the animation stop,
> it skips many frames and it's very obvious.
>
> I'm curious if it does the same on a Windows 8 laptop with a touch screen
> but I don't have such a device to try it.
>
> Should I file a JIRA issue for this? Have others noticed this as well?
>
> As it is, scrolling with a swipe gesture on the touchpad doesn't feel good.
>
> p.s. this is with 8u11 and 8u20



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