Question SpriteAtlas --> late binding

Why are the results screens different for the two sources Code?

1. Source Code

public void RequestAtlas(string _Key, System.Action<SpriteAtlas> callback)
{

if(false == true)
{
var result = Resources.Load<SpriteAtlas>("SpriteAtlas/UILogin/"+_Key);

callback(result);
}
}

2. Source Code

public void Awake()
{
RequestAtlas("SpriteAtlas/UILogin/UILogin", (result) =>
{
if (result != null)
Debug.Log($"[SpriteAtlas] : {result.name}");
});
}


public void RequestAtlas(string _Key, System.Action<SpriteAtlas> callback)
{

if(false == true)
{
var result = Resources.Load<SpriteAtlas>(_Key);

callback(result);
}
}


1 Source Code Result


2 Source Code Result




SpiteAtlas path: SpriteAtlas/UILogin/UILogin.SpriteAtlas

Additional questions:
When is the packed texture data in Spriteatlas saved to a file and where is the path?


plz........
Please check the issue

 

I'm testing it because I want to put the SpriteAtlas in a specific subfolder of the Resources folder

The two source codes explicitly specify the folder path, but the results are different.

 

A sample project has been uploaded.
Unity 2021.3.4f1 version


Just open the sample project, change to the Android platform, and run Login.unity in the Scenes folder. Then the image called TestSample is normally displayed on the screen.

 

Reproduce the situation when image output fails

1.
Uncomment the RequestAtlas() function of the Awake() function and make an explicit call.

2. In the Request Atlas callback function var result = Resources.Load<Sprite Atlas>("Sprite Atlas/UI Login/" + _Key); ---> var result = Resources.Load<SpriteAtlas>(_Key);
change to


3. When debugging, the Awake function calls RequestAtlas forcibly.
Then, RequestAtlas is called once more to find the rs_ui_title image in the object registered in Hierarchy. In conclusion, it is called twice, but in the first forced call, Atlas is considered to be registered, but the image output fails.

 

Is there any way to call the Atlas image to the folder I specified?

 

Please check the issue

 

You can delete the source. This is a source that has not been erased while testing.

 

I understand that the atlas texture is accessed through the registered callback function when the texture is needed. However, the final conclusion is that I want the path of the atlas texture to be a subfolder of Resources/SpriteAtlas in the Resources folder.

 

Looking at the second source code, RequestAtlas is forcibly called in the Awake() function. Then, the atlas is registered in memory in advance, and the necessary textures can be retrieved from the registered atlas. In the second source, RequestAtlas is called once more. And the result is that the texture is not output normally. I may not understand it, but the conclusion is that I want to create a random subfolder of Resource to collect and refer to atlas textures.

 

I am using a translator, so it may be difficult to understand the comments.