Upgrade 3.0.8f7 to 3.11.4 - SetSprite

[fdfragoso]

Hi!

I'm working upgrading an old project to Unity 2017 and was made with Unity 4.6, this project uses NGUI the version 3.0.8f7 and I upgraded for the newest 3.11.4, but I'm getting a problem with the following code

1. atlas = AtlasManager.GetAtlasBySprite(ref spriteName, spriteType);
2.                 if(atlas != null) {
3.                         UISpriteData spriteData = atlas.GetSprite(spriteName);
4.                         if(spriteData != null)
5.                         {
6.                                 sprite.atlas = atlas;
7.                                 sprite.SetSprite(spriteData);
8.  
9.                                 return true;
10.                         }
11.                 }
12.  

What I saw the solution should be replacing the line

1. sprite.SetSprite(spriteData) with sprite.spriteName = spriteName

I tried to find the old documentation or anything else in the forum and the documentation, but I couldn't.
Thanks

[ArenMook]

What is your code supposed to do? What's AtlasManager, and why does it have sprite data? Why do you assign it to sprites manually, and what's "sprite" anyway?