UIWrapContent catches up slowly when the scrolling speed is high

[rain]

Hi!

I've put together a vertical UIScrollView and a UIWrapContent with a list of over 1000 items (with 10 gameobjects actually existing at a time) and I've noticed that if I used SpringPanel to get from the bottom of the list to the top of the list, the items lag behind the scrollview and sometimes don't catch up to the scrollview at all.

Can this issue be solved or do I have to look for another approach for this kind of thing?

[ArenMook]

You likely need to add more active items, like 20 objects at a time. If you scroll quickly, you effectively go past the available bounds, so past your 10 objects, which limits the movement.

[rain]

Went up to 60 objects and decreasing the springpanel strength to 2. Still having the issue when scrolling down to the 2000. element or below.
Any ideas?

[ArenMook]

Can't say I have another suggestion. Question though, why do you need to SpringPanel through 2000 elements?

[rain]

It's for a music picker screen where you can tap the top of the screen to get to the top of the list and access the searchbar, and users might have up to 10-20000 tracks that could be chosen from the list.

[ArenMook]

I suggest you go to the top immediately, not smoothly.

[rain]

The whole point of this would be to simulate the iOS-style "spring to top" feature 

[andreyd]

The whole point of this would be to simulate the iOS-style "spring to top" feature 

We've actually had to write our own version of UITable that repopulates content based on visibility every frame. The problem here is that it uses index based approach. We had the problem as we wanted to have sections of content which could be tapped and scrolled to the top of section content. We had to use our own pooling mechanism where we would know the position of the cell based on the real section and cell index and see if it is visible, then repopulate it.