inconsistent and unpredictable scrolling behaviour

[dinamic]

inconsistent and unpredictable scrolling behaviour

i am unable to predict the scrolling pace, it's or too fast and i have to tap on the screen to stop the scrolling or is too slow. also scrolling in telegram app is very diff than scrolling in g+ app or HN app. try scrolling fast in HN app (it's impossible) https://uappexplorer.com/app/com.ubuntu.developer.rayalez.hackernews

[dinamic (dinamic6661)]

quick fix maybe? make the scrolling stop faster because sometime i get scrolling nausea

[Pat McGowan (pat-mcgowan)]

Anything the toolkit can do to throttle this or make more consistent?

[Zsombor Egri (zsombi)]

Unfortunately there's not much we can do about this on the toolkit level. This must be handled on the ListView or Flickable level, and those are not toolkit elements. We have UbuntuListView derived from ListView which could do something about the scrolling speed. But that requires the app to use the component instead of using the QtQuick's ListView. However the problem with the ListViews is that those are usually scrolling slowly, especially when the delegate uses the old Ubuntu.Components.ListItem components. Switching to UITK 1.3 ListItem/SlotsLayout/ListItemLayout would speed up the scrolling, however if the model used to fill the view is slow, you will still notice some lags in scrolling.

[Gerry Boland (gerboland)]

Well we could always talk with Qt upstream about making the parameters which define scrolling more configurable (so can be set in the QPA plugin we have)

[Zsombor Egri (zsombi)]

Right, I think that was discussed even before on this bug https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1348557