PropertyCollectionAttribute

설명

Base class to derive custom property attributes for collections from. Use this to create custom attributes for array and list variables in scripts.

A custom attributes can be hooked up with a custom PropertyDrawer class to control how a script variable with that attribute is shown in the Inspector.

using UnityEditor;
using UnityEditor.UIElements;
using UnityEngine;
using UnityEngine.UIElements;

public class Collection : MonoBehaviour
{
    public int before;
    [GreenCollectionDrawer] public int[] collection;
    public int after;
}

public class GreenCollectionDrawerAttribute : PropertyCollectionAttribute { }

[CustomPropertyDrawer(typeof(GreenCollectionDrawerAttribute))]
public class GreenCollectionDrawer : PropertyDrawer
{
    public override VisualElement CreatePropertyGUI(SerializedProperty property)
    {
        return new PropertyField(property)
        {
            style =
            {
                backgroundColor = Color.green
            }
        };
    }
}

Additional resources: PropertyDrawer class.

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