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I'm using native scrollers, but it's lagging, i have pretty good android Phone (Samsung S8)

It's a group of fields, only text. i've set scrolling mode to the group and tried acceleratedrendering, but no luck, it seems it doesnt even change when i set scrolling mode, or acceleratedrendering.

You're on the right track, acceleratedRendering must be in effect and the layermode must be "scrolling". However, only the topmost control is affected. Since your fields are in a group they are not candidates, the group itself is. The solution is to either ungroup the fields and scroll each one individually (if the text is longer than the field height) or scroll the entire group as a unit.

Edit : I guess the whole group is what you're doing already. When do you set acceleratedRendering? OpenStack? Preopencard?

i set in preopenstack

but i don't get it, i have attached 2 screens, so the group i want to scroll is the topmost, it contains lot of fields and some graphics too

i start preopenstack with:
set the acceleratedRendering of this stack to true

and i have checked hardware accelerate in standalone settings

layermode of the group i want to scroll is "scrolling"

i can't ungroup these controls in this case i think

I see. Another requirement is that the group must be "unadorned" -- which means, no scrollbar or borders. Try removing the scrollbar. When I'm developing I use this in a preOpenStack handler:

Yep that helped, i only set the scrollbarwidth to 0 on mobile, but seems i need to turn off

it's way better now, but if u check decelerate, it's still laggy, can i do anything with that or that's the max

https://www.youtube.com/watch?v=g-ErDgc ... e=youtu.be

ty for your helping anyway

youtube deleted my video

With some complicated groups I do see some lag but others sometimes work smoothly. I haven't figured out what causes some scrollers to do that. Just in case, make sure none of the inside controls have a layermode set, they should all be static.

I just happened to think, are there subgroups inside the main group? If so, I've found that can slow down scrolling. I usually keep all the content inside the group as independent controls without any subgroups.

yes there are, but its pretty good now, except decelerating, its not a big problem

you helped me alot ty