Changing button's image which located inside List

I have a list that contains few buttons with different images on each button. how to change one of the button image?
I know how to call the specific button (using index of course) but doesn't know how to change the image.
thank you

 

Did you try something like:

Code (CSharp):

1. using UnityEngine.UI;
2.  
3. List<Button> list;
4. Image myFancyImage;
5.  
6. Button button = list[4];
7. button.image = myFancyImage;

 

For that part (myFancyImage), do I need to specify which image is?

 

Yeah, but on second thought maybe you want to do this:

Code (CSharp):

1. string myPath = "Images/UI/Button/SciFiButton" //your path in Resources folder
2.  
3. Button button = list[4];
4.  
5. button.image.mainTexture = Resources.Load<Texture2D>(myPath);

That way you just replace the texture. I guess that's what your goal is?

 

I think so. Anyway, can I put those image path into an array?

 

If you intend to have a fixed list of buttons, I suggest you create:

Code (CSharp):

1. Texture2D[] textures;   // assign in inspector
2.  
3. Button button = list[4];
4. button.image.mainTexture = textures[1];

That way you can avoid using strings as path and directly set your texture from inspector.

 

Unfortunately, the array is randomized, so it can be any button depending on the situation.