PropertyDrawer inside an array

Questions & Answers
1

Hi there,

I have a custom property drawer for an object A, that renders exactly as I want. Besides, I have another object B owning an array of A. In the inspector, the property drawer works as expected, but not the “array part” : the usual string “Element 0” that precedes the first object is not here anymore (idem for the following Elements 1, 2, etc.), and I can’t collapse each element of the array anymore.

Is there something to do inside the PropertyDrawer (though I guess it’s should not take care of the rendering of my object A when it’s embedded in an array), or should I make a custom Editor for my object B, or something else?

Here is an image to illustrate:

181153-propertydrawerproblem.png
181153-propertydrawerproblem.png586×696 52.2 KB

Thanks in advance for your help!

2

Custom Property Drawer is ok for this.
You just need to iterate the array inside the drawer.
Pseudocode:

SerializedProperty serialized_A_Array= property.FindPropertyRelative("A_Array");
foreach (SerializedProperty A in serialized_A_Array)
{
     EditorGUI.PropertyField([GetPropertyHeight], A, ...)
     if (A.isExpanded)
     {
          //Draw the A as you like. Override the GetPropertyHeight() to position the lines correctly
         EditorGUI.PropertyField([GetPropertyHeight], A.FindPropertyRelative("Position");
         // etc..
     }
}