Property Drawer not being called for array?

Unity Engine
1

It seems that CreatePropertyGUI() is not getting called for properties that are arrays. I’m using a custom editor window and it works fine for normal properties.

Attribute…

    [AttributeUsage(AttributeTargets.Field)]
    public class AssetDropdownAttribute : PropertyAttribute
    {
        public Type SourceType { get; private set; }
        public AssetDropdownAttribute(Type sourceType) { SourceType = sourceType; }
    }

Drawer…

[CustomPropertyDrawer(typeof(AssetDropdownAttribute))]
    public class AssetDropdownDrawer : PropertyDrawer
    {
        public override VisualElement CreatePropertyGUI(SerializedProperty property)
        {
            Debug.Log($"Property <color=cyan>{property.displayName}</color> is array: {property.isArray}");
            if (property.isArray) Debug.Log($"Property Array Size: {property.arraySize}");
[...]

Class…

public class AvatarData : DataEntity
    {
        [Header("Misc")]
        [AssetDropdown(typeof(StatPreset))]
        public StatPreset StatsPreset;
   
        [AssetDropdown(typeof(BaseAbility))]
        public BaseAbility[] Abilities;

        [AssetDropdown(typeof(AvatarAxisConfig))]
        public AvatarAxisConfig MountAxisConfig;
[...]

Results…

Property Stats Preset is array: False
// should be seeing the array debug as True here.
Property Mount Axis Config is array: False

The public BaseAbility[ ] Abilities draws as a normal default array. Am I doing something wrong?

edit - Unity 2019.3.0b11

2

Well, it draws the items in the array with the property drawer. Which is convenient I suppose, but can I not use this to override how the array is drawn?

3

UIElements is does not support PropertyAttribute right now. If you really need support soon and are feeling brave enough to look at some Unity code, here’s the UIElements PropertyField implementation:

See the Reset() function. To see how it calls your CreatePropertyGUI(). You might be able top copy this class and implement your custom one until we have official support.