Flickering and wierd scrolling behaviour with ListView component

[jefimh]

Hi! I have been using free version of NovaUI for a couple of days and currently am having some issues with making scrollable list view work. I have followed the Nova documentation for scrollable lists, but perhaps I have made a mistake somewhere. The issue is that there is some weird flickering going on upon scrolling, and the list items start out with weird spacing, that disappears once you start scrolling.

issue.mp4

[adgray1]

Any chance Auto Space is enabled on the DriverList's Auto Layout?

[jefimh]

Hi! Nope, it is not enabled

[adgray1]

Interesting! A few requests to better understand your setup:

1. Can you share a screenshot of the DriverList UIBlock's Size and Auto Layout configurations?
2. Can you share your DriverList component code? The most important bits would be how you're initializing the list as well as your bind event handlers, but the more code the better just in case :)

[jefimh]

I just copied the code from the documentation to test out ListView functionality. I am really confused as to what the issue is as I have imported the provided prefab for scroll view just to test it out and it worked fine. This is weird since the settings seem to be the same.

[adgray1]

Yeah, nothing standing out so far - the weird spacing at the beginning of the video does look like auto spacing, but since it's disabled in your screenshot something would have to be enabling it (and then disabling it) in code somewhere, which I assume you're not doing?

So a few more questions:

1. When enter play mode, does the DriverList have any child objects before you call SetDataSource to populate it?
2. Are those Filter buttons at the top functional (or doing anything besides changing hover states)? If so, could you share any code you're using for the different filters?
3. Could you share a screenshot of the Size configuration on your DriverItem prefab?
4. Which input system (legacy vs input package) are you using?
5. Are you using the Input Manager component included in the Nova asset or a custom one?

[jefimh]

Nope, auto spacing is not being turned on in code. However, I figured out that the clipping issue is not there if the DriverList gameobject has DriverItems attached to it before pressing play. But when I Instantiate new instances of the Drivers class during runtime, the DriverItem elements are being activated and deactivated weirdly upon scrolling, which seems to cause this flickering. Although, the weird spacing, in the beginning, is still there.

1. DriverList has no child objects
2. Filter buttons are just placeholders

4. Legacy
5. Yes, I am using the provided Input Manager.

[jefimh]

In case anyone comes across this issue, I resolved the flickering (as well as weird spacing) by deleting the panel and just taking one of the scroller prefabs included in the Nova folder and unpacking it for modification. I am unsure what the issue was, but seems to just be a weird bug.