Unity UI ListPool<T> innaccessible due to protection level [Solved]

Hello,

I wanted to implement a variation on the Outline effect, but the Outline.cs from the Unity UI source does not compile in 5.5 or 5.6:

The line that is failing is:

Code (CSharp):

1.  
2. var verts = ListPool<UIVertex>.Get();
3.  

I get the same error if I try to use the BaseMeshEffect example code here or try using ListPool in any context.

ListPool appears to be implemented like this:

Code (CSharp):

1.  
2. namespace UnityEngine.UI {
3.     internal static class ListPool<T> {
4.         public static List<T> Get();
5.         public static void Release(List<T> toRelease);
6.     }
7. }
8.  

Not sure how an internal static class is supposed to be used.

Searching google/forums for the error didn't return anything, so I'm wondering what I could be missing!

Thank you for any help or suggestions!

_____

Edit: Solved!

By adding ListPool.cs & ObjectPool.cs into my project, the ListPool can now be used in custom scripts.

 

Hi,

I'm curious to know what you wanted to do off of this script. I'm trying to modify the shadow.cs script myself and don't really know where to go from here. Thanks to you I managed to get it modified (by adding the script you mentioned).

I would like to make the shadow a solid color and not a blend of the original image.
Right now, the color I pick (green) is multiply by the source image :

And I would like it to be like that :


If you have a track to follow, that would be awesome !

 

The Unity UI bitbucket has been taken down, and this question is no longer solved. If anyone has the original ListPool.cs and ObjectPool.cs scripts, please send them as they are no longer public.

 

Can you please backport ListPool & ObjectPool to Unity2020 LTS?